Resubmissions

26-05-2024 02:26

240526-cw1qgabe6z 10

26-05-2024 02:15

240526-cp3w9abc4z 10

Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-05-2024 02:15

General

  • Target

    XClient.exe

  • Size

    179KB

  • MD5

    48ec861dda66f8a5c4c4abe34bde5533

  • SHA1

    cc33872e3bac88a5b426e1d44932a60a42e97a3c

  • SHA256

    126def262910ee46ba3a1210d2c8f71f8348c18f248806abd559ae52d85e584f

  • SHA512

    b50e3920d80ca5a9301be447c88294660901db1b453967365ed0031edc08e837aac6c351608643cdc0207bac6e3ce4c6ca49321a0641ab0759476db15537ac42

  • SSDEEP

    3072:NChMbbOhEiNnIbodpABzmONKv3Bz65/M6If+3Js+3JFkKeTno:NCeO5abXUfxBt25

Malware Config

Extracted

Family

xworm

C2

non-activists.gl.at.ply.gg:63701

Attributes
  • install_file

    USB.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 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.

  • 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: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:828
    • 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\XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4136
    • 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:3928

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    d85ba6ff808d9e5444a4b369f5bc2730

    SHA1

    31aa9d96590fff6981b315e0b391b575e4c0804a

    SHA256

    84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

    SHA512

    8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    944B

    MD5

    2e907f77659a6601fcc408274894da2e

    SHA1

    9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

    SHA256

    385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

    SHA512

    34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hwhwahmr.qz0.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/828-1-0x0000000000F80000-0x0000000000FB2000-memory.dmp

    Filesize

    200KB

  • memory/828-2-0x00007FFAA3CC0000-0x00007FFAA4781000-memory.dmp

    Filesize

    10.8MB

  • memory/828-0-0x00007FFAA3CC3000-0x00007FFAA3CC5000-memory.dmp

    Filesize

    8KB

  • memory/828-32-0x00007FFAA3CC0000-0x00007FFAA4781000-memory.dmp

    Filesize

    10.8MB

  • memory/828-31-0x00007FFAA3CC3000-0x00007FFAA3CC5000-memory.dmp

    Filesize

    8KB

  • memory/4136-3-0x00007FFAA3CC0000-0x00007FFAA4781000-memory.dmp

    Filesize

    10.8MB

  • memory/4136-18-0x00007FFAA3CC0000-0x00007FFAA4781000-memory.dmp

    Filesize

    10.8MB

  • memory/4136-15-0x00007FFAA3CC0000-0x00007FFAA4781000-memory.dmp

    Filesize

    10.8MB

  • memory/4136-14-0x00007FFAA3CC0000-0x00007FFAA4781000-memory.dmp

    Filesize

    10.8MB

  • memory/4136-13-0x000001DD1E4F0000-0x000001DD1E512000-memory.dmp

    Filesize

    136KB