Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-05-2024 12:47

General

  • Target

    XClient.exe

  • Size

    60KB

  • MD5

    0f803689398c092ad9ae274d5c7507d6

  • SHA1

    693161863fa62cb65e7f3102d55087a9bf816889

  • SHA256

    0c336bb9258f45ded239bfd2a721a779c3a467cfd177d9ab75841d6eb61d2a8a

  • SHA512

    1fed05b278b8243c1e45c34a1eca78492fb24d18296feac978bd54528359d2c07a783bff434921a26a96ba122a8dc9da6d00b9cdda09c6c8569910d0472080f8

  • SSDEEP

    1536:b5GHtqKStfgDGVHc08kbsXHZBgGOq+k6Z:lGNqrIDK8kbsXLOq+bZ

Malware Config

Extracted

Family

xworm

C2

91.92.241.69:5555

Attributes
  • Install_directory

    %AppData%

  • install_file

    AMD Graphics Manager.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1084
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "AMD Graphics Manager" /tr "C:\Users\Admin\AppData\Roaming\AMD Graphics Manager"
      2⤵
      • Creates scheduled task(s)
      PID:2292
  • C:\Users\Admin\AppData\Roaming\AMD Graphics Manager
    "C:\Users\Admin\AppData\Roaming\AMD Graphics Manager"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1048
  • C:\Users\Admin\AppData\Roaming\AMD Graphics Manager
    "C:\Users\Admin\AppData\Roaming\AMD Graphics Manager"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4840

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\AMD Graphics Manager.log

    Filesize

    654B

    MD5

    2ff39f6c7249774be85fd60a8f9a245e

    SHA1

    684ff36b31aedc1e587c8496c02722c6698c1c4e

    SHA256

    e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

    SHA512

    1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

  • C:\Users\Admin\AppData\Roaming\AMD Graphics Manager

    Filesize

    60KB

    MD5

    0f803689398c092ad9ae274d5c7507d6

    SHA1

    693161863fa62cb65e7f3102d55087a9bf816889

    SHA256

    0c336bb9258f45ded239bfd2a721a779c3a467cfd177d9ab75841d6eb61d2a8a

    SHA512

    1fed05b278b8243c1e45c34a1eca78492fb24d18296feac978bd54528359d2c07a783bff434921a26a96ba122a8dc9da6d00b9cdda09c6c8569910d0472080f8

  • memory/1048-9-0x00007FF816410000-0x00007FF816ED1000-memory.dmp

    Filesize

    10.8MB

  • memory/1048-11-0x00007FF816410000-0x00007FF816ED1000-memory.dmp

    Filesize

    10.8MB

  • memory/1084-0-0x00000000009B0000-0x00000000009C6000-memory.dmp

    Filesize

    88KB

  • memory/1084-1-0x00007FF816413000-0x00007FF816415000-memory.dmp

    Filesize

    8KB

  • memory/1084-5-0x00007FF816410000-0x00007FF816ED1000-memory.dmp

    Filesize

    10.8MB

  • memory/1084-6-0x00007FF816410000-0x00007FF816ED1000-memory.dmp

    Filesize

    10.8MB