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Windows
Analysis Report
58955, ZN25888A #U2013 drawing.pif.exe
Overview
General Information
Sample name: | 58955, ZN25888A #U2013 drawing.pif.exerenamed because original name is a hash value |
Original sample name: | 58955, ZN25888A drawing.pif.exe |
Analysis ID: | 1591789 |
MD5: | ba27bfa68b1196840be542cf4dc7178b |
SHA1: | 7e25b41d515894bfb8f0707e2f22fb33451301ca |
SHA256: | bff8313cf041d37f04d9bdc05dcfebd6bd46682dee3052f756e6489f856a34a1 |
Tags: | exeuser-TeamDreier |
Infos: | |
Detection
AgentTesla
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Yara detected AgentTesla
Yara detected AntiVM3
AI detected suspicious sample
Drops VBS files to the startup folder
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: WScript or CScript Dropper
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file / registry access)
Uses ipconfig to lookup or modify the Windows network settings
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Allocates memory with a write watch (potentially for evading sandboxes)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Creates a start menu entry (Start Menu\Programs\Startup)
Detected potential crypto function
Drops PE files
Enables debug privileges
Found WSH timer for Javascript or VBS script (likely evasive script)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
IP address seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Sigma detected: Suspicious Execution of Powershell with Base64
Sigma detected: Suspicious Outbound SMTP Connections
Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript
Stores files to the Windows start menu directory
Uses 32bit PE files
Uses SMTP (mail sending)
Uses a known web browser user agent for HTTP communication
Uses code obfuscation techniques (call, push, ret)
Very long cmdline option found, this is very uncommon (may be encrypted or packed)
Yara detected Credential Stealer
Classification
- System is w10x64
- 58955, ZN25888A #U2013 drawing.pif.exe (PID: 7604 cmdline:
"C:\Users\ user\Deskt op\58955, ZN25888A # U2013 draw ing.pif.ex e" MD5: BA27BFA68B1196840BE542CF4DC7178B) - cmd.exe (PID: 7760 cmdline:
"C:\Window s\System32 \cmd.exe" /c ipconfi g /release MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - conhost.exe (PID: 7768 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - ipconfig.exe (PID: 7812 cmdline:
ipconfig / release MD5: 3A3B9A5E00EF6A3F83BF300E2B6B67BB) - powershell.exe (PID: 7956 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" -enc QQBkA GQALQBNAHA AUAByAGUAZ gBlAHIAZQB uAGMAZQAgA C0ARQB4AGM AbAB1AHMAa QBvAG4AUAB hAHQAaAAgA EMAOgBcAFU AcwBlAHIAc wBcAHQAaQB uAGEAXABEA GUAcwBrAHQ AbwBwAFwAN QA4ADkANQA 1ACwAIABaA E4AMgA1ADg AOAA4AEEAI AAjAFUAMgA wADEAMwAgA GQAcgBhAHc AaQBuAGcAL gBwAGkAZgA uAGUAeABlA DsAIABBAGQ AZAAtAE0Ac ABQAHIAZQB mAGUAcgBlA G4AYwBlACA ALQBFAHgAY wBsAHUAcwB pAG8AbgBQA HIAbwBjAGU AcwBzACAAQ wA6AFwAVQB zAGUAcgBzA FwAdABpAG4 AYQBcAEQAZ QBzAGsAdAB vAHAAXAA1A DgAOQA1ADU ALAAgAFoAT gAyADUAOAA 4ADgAQQAgA CMAVQAyADA AMQAzACAAZ AByAGEAdwB pAG4AZwAuA HAAaQBmAC4 AZQB4AGUAO wBBAGQAZAA tAE0AcABQA HIAZQBmAGU AcgBlAG4AY wBlACAALQB FAHgAYwBsA HUAcwBpAG8 AbgBQAGEAd ABoACAAQwA 6AFwAVQBzA GUAcgBzAFw AdABpAG4AY QBcAEEAcAB wAEQAYQB0A GEAXABSAG8 AYQBtAGkAb gBnAFwAcAB hAGcAZQAuA GUAeABlADs AIABBAGQAZ AAtAE0AcAB QAHIAZQBmA GUAcgBlAG4 AYwBlACAAL QBFAHgAYwB sAHUAcwBpA G8AbgBQAHI AbwBjAGUAc wBzACAAQwA 6AFwAVQBzA GUAcgBzAFw AdABpAG4AY QBcAEEAcAB wAEQAYQB0A GEAXABSAG8 AYQBtAGkAb gBnAFwAcAB hAGcAZQAuA GUAeABlAA= = MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 7976 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - WmiPrvSE.exe (PID: 7352 cmdline:
C:\Windows \system32\ wbem\wmipr vse.exe -s ecured -Em bedding MD5: 60FF40CFD7FB8FE41EE4FE9AE5FE1C51) - InstallUtil.exe (PID: 368 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\Ins tallUtil.e xe" MD5: 5D4073B2EB6D217C19F2B22F21BF8D57) - cmd.exe (PID: 1244 cmdline:
"C:\Window s\System32 \cmd.exe" /c ipconfi g /renew MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - conhost.exe (PID: 5780 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - ipconfig.exe (PID: 6180 cmdline:
ipconfig / renew MD5: 3A3B9A5E00EF6A3F83BF300E2B6B67BB)
- wscript.exe (PID: 336 cmdline:
"C:\Window s\System32 \WScript.e xe" "C:\Us ers\user\A ppData\Roa ming\Micro soft\Windo ws\Start M enu\Progra ms\Startup \page.vbs" MD5: A47CBE969EA935BDD3AB568BB126BC80) - page.exe (PID: 3716 cmdline:
"C:\Users\ user\AppDa ta\Roaming \page.exe" MD5: BA27BFA68B1196840BE542CF4DC7178B) - cmd.exe (PID: 3348 cmdline:
"C:\Window s\System32 \cmd.exe" /c ipconfi g /release MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - conhost.exe (PID: 1792 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - ipconfig.exe (PID: 2016 cmdline:
ipconfig / release MD5: 3A3B9A5E00EF6A3F83BF300E2B6B67BB) - InstallUtil.exe (PID: 1816 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\Ins tallUtil.e xe" MD5: 5D4073B2EB6D217C19F2B22F21BF8D57) - cmd.exe (PID: 3236 cmdline:
"C:\Window s\System32 \cmd.exe" /c ipconfi g /renew MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - conhost.exe (PID: 3252 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - ipconfig.exe (PID: 3124 cmdline:
ipconfig / renew MD5: 3A3B9A5E00EF6A3F83BF300E2B6B67BB)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Agent Tesla, AgentTesla | A .NET based information stealer readily available to actors due to leaked builders. The malware is able to log keystrokes, can access the host's clipboard and crawls the disk for credentials or other valuable information. It has the capability to send information back to its C&C via HTTP(S), SMTP, FTP, or towards a Telegram channel. |
{"Exfil Mode": "SMTP", "Host": "mail.iaa-airferight.com", "Username": "admin@iaa-airferight.com", "Password": "manlikeyou88"}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
JoeSecurity_AgentTesla_1 | Yara detected AgentTesla | Joe Security | ||
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
JoeSecurity_AgentTesla_1 | Yara detected AgentTesla | Joe Security | ||
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
Click to see the 10 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security |
System Summary |
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Source: | Author: Jonathan Cheong, oscd.community: |
Source: | Author: Jonathan Cheong, oscd.community: |
Source: | Author: Florian Roth (Nextron Systems): |