Analysis

  • max time kernel
    120s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    15-06-2024 10:43

General

  • Target

    LabyMod4Crt.exe

  • Size

    62KB

  • MD5

    e1135bf291dffcc3b904d29aabedf004

  • SHA1

    2fc070053234cf8fc69361e8b8c8aa52c30c612f

  • SHA256

    ca6becc3a5e5b7fa151258c05c4b3a36bbfd470d347f8da494472988b4f7bb71

  • SHA512

    feb7819ffd99e068dad0ff9ac8cf8779e6a876c0f5e4926ccadc827c24543d74ab5a941e1a6f0078e5aa0011bef7901bc44508f0519afacc9b4e8cb42fbc2440

  • SSDEEP

    1536:8L8ZxognvAhQtNGp1uBQt6buhGyWT6Q9FO2Ef5h:kgnfgp1uBQAbuEfO2s5h

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:23386

cameras-happen.gl.at.ply.gg:23386

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

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

  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe
    "C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1752
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2476
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'LabyMod4Crt.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2644
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2928
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2520

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Discovery

System Information Discovery

1
T1082

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
    Filesize

    7KB

    MD5

    f82eb1a87c16c6e92ee3c5d414293683

    SHA1

    7776795d435dd142d8a21e5dac6787a98e7131c2

    SHA256

    ceeb716275fbc7ef7068b7e166a1792627b977478cae21ed5d5bc69d45925b35

    SHA512

    654b6bf372213afe42fc1f782b82fd781a358be6570f3c85274cc930bd7cd9f907b518eb5c29af56309a74d0c4f78d6b33f89e5e0ed86d95314c55ade4f0b763

  • \Users\Admin\AppData\Local\Temp\tmpB97F.tmp
    Filesize

    100KB

    MD5

    1b942faa8e8b1008a8c3c1004ba57349

    SHA1

    cd99977f6c1819b12b33240b784ca816dfe2cb91

    SHA256

    555ccb7ecd9ae52a75135fdd81ab443a49d5785b0621ed6468d28c4234e46ccc

    SHA512

    5aee3d59478d41ddd5885c99b394c9c4983064e2b3528db1a3f7fc289662bced4f57d072517bbe7573c6d1789435e987ef1aa9cc91f372bcfd30bc016675fa43

  • memory/1752-31-0x0000000000BC0000-0x0000000000BCC000-memory.dmp
    Filesize

    48KB

  • memory/1752-1-0x0000000000C90000-0x0000000000CA6000-memory.dmp
    Filesize

    88KB

  • memory/1752-2-0x000007FEF5E40000-0x000007FEF682C000-memory.dmp
    Filesize

    9.9MB

  • memory/1752-0-0x000007FEF5E43000-0x000007FEF5E44000-memory.dmp
    Filesize

    4KB

  • memory/1752-33-0x0000000002230000-0x000000000226A000-memory.dmp
    Filesize

    232KB

  • memory/1752-32-0x000007FEF5E40000-0x000007FEF682C000-memory.dmp
    Filesize

    9.9MB

  • memory/1752-30-0x000007FEF5E43000-0x000007FEF5E44000-memory.dmp
    Filesize

    4KB

  • memory/2476-7-0x000000001B680000-0x000000001B962000-memory.dmp
    Filesize

    2.9MB

  • memory/2476-8-0x00000000022C0000-0x00000000022C8000-memory.dmp
    Filesize

    32KB

  • memory/2644-15-0x0000000002240000-0x0000000002248000-memory.dmp
    Filesize

    32KB

  • memory/2644-14-0x000000001B600000-0x000000001B8E2000-memory.dmp
    Filesize

    2.9MB