Analysis

  • max time kernel
    40s
  • max time network
    46s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/06/2024, 01:33

General

  • Target
    4a00f326c88c3dcf8ed051db219851f12ed37b9a66777f844c0a2331eec73f6f.exe
  • Size 718KB
  • Sample240615-bywzmavanf
  • SHA256 4a00f326c88c3dcf8ed051db219851f12ed37b9a66777f844c0a2331eec73f6f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://api.telegram.org/bot7399601150:AAFy9qkypWKIhKNY_iFY0Z_YXdrOQ4Kz_XE/

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a00f326c88c3dcf8ed051db219851f12ed37b9a66777f844c0a2331eec73f6f.exe
    "C:\Users\Admin\AppData\Local\Temp\4a00f326c88c3dcf8ed051db219851f12ed37b9a66777f844c0a2331eec73f6f.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3108
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\4a00f326c88c3dcf8ed051db219851f12ed37b9a66777f844c0a2331eec73f6f.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2884
    • C:\Users\Admin\AppData\Local\Temp\4a00f326c88c3dcf8ed051db219851f12ed37b9a66777f844c0a2331eec73f6f.exe
      "C:\Users\Admin\AppData\Local\Temp\4a00f326c88c3dcf8ed051db219851f12ed37b9a66777f844c0a2331eec73f6f.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2012

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        __PSScriptPolicyTest_p3fnll2s.0lb.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_p3fnll2s.0lb.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        memory/2012-10-0x0000000000400000-0x0000000000442000-memory.dmp

        memory/2012-62-0x0000000074610000-0x0000000074DC0000-memory.dmp

        memory/2012-61-0x0000000074610000-0x0000000074DC0000-memory.dmp

        memory/2012-48-0x00000000062D0000-0x0000000006320000-memory.dmp

        memory/2012-15-0x0000000005420000-0x0000000005486000-memory.dmp

        memory/2012-14-0x0000000074610000-0x0000000074DC0000-memory.dmp

        memory/2012-12-0x0000000074610000-0x0000000074DC0000-memory.dmp

        memory/2884-21-0x0000000005A90000-0x0000000005AF6000-memory.dmp

        memory/2884-46-0x0000000006900000-0x000000000691E000-memory.dmp

        memory/2884-60-0x0000000074610000-0x0000000074DC0000-memory.dmp

        memory/2884-57-0x0000000007970000-0x0000000007978000-memory.dmp

        memory/2884-56-0x0000000007990000-0x00000000079AA000-memory.dmp

        memory/2884-55-0x0000000007890000-0x00000000078A4000-memory.dmp

        memory/2884-54-0x0000000007880000-0x000000000788E000-memory.dmp

        memory/2884-16-0x0000000002A40000-0x0000000002A76000-memory.dmp

        memory/2884-17-0x0000000074610000-0x0000000074DC0000-memory.dmp

        memory/2884-19-0x0000000074610000-0x0000000074DC0000-memory.dmp

        memory/2884-18-0x0000000005460000-0x0000000005A88000-memory.dmp

        memory/2884-20-0x0000000005370000-0x0000000005392000-memory.dmp

        memory/2884-53-0x0000000007850000-0x0000000007861000-memory.dmp

        memory/2884-52-0x00000000078D0000-0x0000000007966000-memory.dmp

        memory/2884-31-0x0000000005CF0000-0x0000000006044000-memory.dmp

        memory/2884-32-0x0000000006330000-0x000000000634E000-memory.dmp

        memory/2884-33-0x0000000006540000-0x000000000658C000-memory.dmp

        memory/2884-51-0x00000000076C0000-0x00000000076CA000-memory.dmp

        memory/2884-36-0x0000000070270000-0x00000000702BC000-memory.dmp

        memory/2884-35-0x00000000072E0000-0x0000000007312000-memory.dmp

        memory/2884-47-0x0000000007520000-0x00000000075C3000-memory.dmp

        memory/2884-50-0x0000000007650000-0x000000000766A000-memory.dmp

        memory/2884-49-0x0000000007C90000-0x000000000830A000-memory.dmp

        memory/3108-3-0x0000000005990000-0x0000000005A22000-memory.dmp

        memory/3108-9-0x0000000006F90000-0x0000000007012000-memory.dmp

        memory/3108-4-0x0000000005950000-0x000000000595A000-memory.dmp

        memory/3108-0-0x000000007461E000-0x000000007461F000-memory.dmp

        memory/3108-5-0x0000000005CA0000-0x0000000005D3C000-memory.dmp

        memory/3108-6-0x0000000074610000-0x0000000074DC0000-memory.dmp

        memory/3108-13-0x0000000074610000-0x0000000074DC0000-memory.dmp

        memory/3108-7-0x0000000005C80000-0x0000000005C9A000-memory.dmp

        memory/3108-8-0x0000000005BE0000-0x0000000005BF0000-memory.dmp

        memory/3108-2-0x0000000005F40000-0x00000000064E4000-memory.dmp

        memory/3108-1-0x0000000000EA0000-0x0000000000F5A000-memory.dmp