Windows Analysis Report
Windows_Update.bat

Overview

General Information

Sample name: Windows_Update.bat
Analysis ID: 1446640
MD5: 54cc5be48ccd0f3ebd942bb4b8d6df94
SHA1: 6244bfcd1747c623ebb0f5b4c05d7c55733d4402
SHA256: f0b5285ad8f1762007fd560a554775113e64834b512324abd5ff7b333a7f37e8
Tags: bat
Infos:

Detection

Score: 48
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Bypasses PowerShell execution policy
Sigma detected: Suspicious Program Names
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
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
Uses code obfuscation techniques (call, push, ret)

Classification

Source: powershell.exe, 00000005.00000002.1652489724.0000020BC5921000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name
Source: powershell.exe, 00000005.00000002.1652489724.0000020BC596F000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: https://aka.ms/pscore6
Source: powershell.exe, 00000005.00000002.1652489724.0000020BC5998000.00000004.00000800.00020000.00000000.sdmp String found in binary or memory: https://aka.ms/pscore68
Detected potential crypto function
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Code function: 5_2_00007FFB10DCC4BA 5_2_00007FFB10DCC4BA
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Code function: 5_2_00007FFB10DC100F 5_2_00007FFB10DC100F
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Code function: 5_2_00007FFB10DC0CCA 5_2_00007FFB10DC0CCA
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Code function: 5_2_00007FFB10DC1030 5_2_00007FFB10DC1030
Source: classification engine Classification label: mal48.evad.winBAT@9/4@0/0
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:8004:120:WilError_03
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Mutant created: NULL
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:8092:120:WilError_03
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe File created: C:\Users\user\AppData\Local\Temp\__PSScriptPolicyTest_542shvpd.4wd.ps1 Jump to behavior
Source: unknown Process created: C:\Windows\System32\cmd.exe C:\Windows\system32\cmd.exe /c ""C:\Users\user\Desktop\Windows_Update.bat" "
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\SystemCertificates\CA Jump to behavior
Source: unknown Process created: C:\Windows\System32\cmd.exe C:\Windows\system32\cmd.exe /c ""C:\Users\user\Desktop\Windows_Update.bat" "
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\cmd.exe C:\Windows\system32\cmd.exe /K "C:\Users\user\Desktop\Windows_Update.bat" MY_FLAG
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe powershell -ExecutionPolicy Bypass -File "C:\Users\user\Pictures\payload.ps1"
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\timeout.exe timeout /t 5 /nobreak
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\cmd.exe C:\Windows\system32\cmd.exe /K "C:\Users\user\Desktop\Windows_Update.bat" MY_FLAG Jump to behavior
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe powershell -ExecutionPolicy Bypass -File "C:\Users\user\Pictures\payload.ps1" Jump to behavior
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\timeout.exe timeout /t 5 /nobreak Jump to behavior
Source: C:\Windows\System32\cmd.exe Section loaded: cmdext.dll Jump to behavior
Source: C:\Windows\System32\cmd.exe Section loaded: cmdext.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: atl.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: mscoree.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: version.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: vcruntime140_clr0400.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: ucrtbase_clr0400.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: ucrtbase_clr0400.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: cryptsp.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: rsaenh.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: cryptbase.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: amsi.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: userenv.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: msasn1.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: msisip.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: wshext.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: appxsip.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: opcservices.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Section loaded: gpapi.dll Jump to behavior
Source: C:\Windows\System32\timeout.exe Section loaded: version.dll Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe File opened: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\mscorrc.dll Jump to behavior
Uses code obfuscation techniques (call, push, ret)
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Code function: 5_2_00007FFB10DD06A2 push FFFFFFE8h; ret 5_2_00007FFB10DD06C9
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Code function: 5_2_00007FFB10DC2095 pushad ; iretd 5_2_00007FFB10DC2099
Source: C:\Windows\System32\cmd.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\cmd.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Contains long sleeps (>= 3 min)
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Window / User API: threadDelayed 661 Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Window / User API: threadDelayed 519 Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe TID: 2092 Thread sleep count: 661 > 30 Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe TID: 7240 Thread sleep count: 519 > 30 Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe TID: 8164 Thread sleep time: -922337203685477s >= -30000s Jump to behavior
Source: C:\Windows\System32\timeout.exe TID: 7284 Thread sleep count: 40 > 30 Jump to behavior
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Windows\System32\conhost.exe Last function: Thread delayed
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process information queried: ProcessInformation Jump to behavior
Enables debug privileges
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Process token adjusted: Debug Jump to behavior

HIPS / PFW / Operating System Protection Evasion
barindex
Bypasses PowerShell execution policy
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe powershell -ExecutionPolicy Bypass -File "C:\Users\user\Pictures\payload.ps1"
Creates a process in suspended mode (likely to inject code)
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\cmd.exe C:\Windows\system32\cmd.exe /K "C:\Users\user\Desktop\Windows_Update.bat" MY_FLAG Jump to behavior
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe powershell -ExecutionPolicy Bypass -File "C:\Users\user\Pictures\payload.ps1" Jump to behavior
Source: C:\Windows\System32\cmd.exe Process created: C:\Windows\System32\timeout.exe timeout /t 5 /nobreak Jump to behavior
Queries the volume information (name, serial number etc) of a device
Source: C:\Windows\System32\cmd.exe Queries volume information: C:\ VolumeInformation Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft.PowerShell.ConsoleHost\v4.0_3.0.0.0__31bf3856ad364e35\Microsoft.PowerShell.ConsoleHost.dll VolumeInformation Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Management.Automation\v4.0_3.0.0.0__31bf3856ad364e35\System.Management.Automation.dll VolumeInformation Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Management.Automation\v4.0_3.0.0.0__31bf3856ad364e35\System.Management.Automation.dll VolumeInformation Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Xml\v4.0_4.0.0.0__b77a5c561934e089\System.XML.dll VolumeInformation Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft.Management.Infrastructure\v4.0_1.0.0.0__31bf3856ad364e35\Microsoft.Management.Infrastructure.dll VolumeInformation Jump to behavior
Source: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Numerics\v4.0_4.0.0.0__b77a5c561934e089\System.Numerics.dll VolumeInformation Jump to behavior
Source: C:\Windows\System32\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\System32\WindowsPowerShell\v1.0\powershell.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_64\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll VolumeInformation Jump to behavior
windows-stand
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  • Signature
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  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1446640 Sample: Windows_Update.bat Startdate: 23/05/2024 Architecture: WINDOWS Score: 48 20 Sigma detected: Suspicious Program Names 2->20 7 cmd.exe 1 2->7         started        process3 signatures4 22 Bypasses PowerShell execution policy 7->22 10 cmd.exe 1 7->10         started        12 conhost.exe 7->12         started        process5 process6 14 powershell.exe 5 10->14         started        16 conhost.exe 10->16         started        18 timeout.exe 1 10->18         started       
⊘No contacted IP infos