Analysis

  • max time kernel
    100s
  • max time network
    102s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20250113-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250113-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    24-01-2025 21:27

General

  • Target

    XClient.exe

  • Size

    65KB

  • MD5

    e61b7b5567e85dafef933bc75eb974f0

  • SHA1

    112fd88adac00dfeaaaab3ec3dd0095f940ba257

  • SHA256

    3606fbab92dc9da545537d723bc5529394d358b24878729c124d1cc582ba4b57

  • SHA512

    701826564782f4c3d6b9d3e8f25c0bb3612e6eb1c4face0c270301c1f07d85849399e73507d50ff1152ba941f0ea4135ef79832e4aeaefbcb4d215b70b7ec8ef

  • SSDEEP

    1536:kdHr3oQIaboNcLK4X54bIBG4qOu6U3TO9nLGb:OL8NgXObImhO9LGb

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:30717

window-prize.gl.ply.gg:30717

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 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).

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 38 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 36 IoCs
  • Suspicious use of SendNotifyMessage 36 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

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
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3904
    • 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:2636
    • 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:1588
    • 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:2116
    • 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
      PID:2028
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /7
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:3716

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    3KB

    MD5

    3eb3833f769dd890afc295b977eab4b4

    SHA1

    e857649b037939602c72ad003e5d3698695f436f

    SHA256

    c485a6e2fd17c342fca60060f47d6a5655a65a412e35e001bb5bf88d96e6e485

    SHA512

    c24bbc8f278478d43756807b8c584d4e3fb2289db468bc92986a489f74a8da386a667a758360a397e77e018e363be8912ac260072fa3e31117ad0599ac749e72

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

    Filesize

    1KB

    MD5

    f0f59cccd39a3694e0e6dfd44d0fa76d

    SHA1

    fccd7911d463041e1168431df8823e4c4ea387c1

    SHA256

    70466c7f3a911368d653396fdd68f993322c69e1797b492ca00f8be34b7f3401

    SHA512

    5c726e1e28cb9c0c3ab963fbfbf471c6033839f3e535a3811581fdaa4da17175e5a8a8be84a4fccd99b81e048058e51d230ff3836e3ec920057a1b1676110bee

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

    Filesize

    1KB

    MD5

    52e6333a2faebfcb34cba625d10fd3a8

    SHA1

    9362a1fc784d5caaa511c3bd2b4470191c11521e

    SHA256

    da85b495f6667286f901959aa81a7ec59a85c6ba9c5b17a9e2f6373491486dec

    SHA512

    2fe779bd4dd1aaf40a179c913076dc42fa7f359599e67e48269d6de515f539593d901a1f0da9e7087d485e5e708fb040dd3ba1ab15c2f412fee26fa792311467

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

    Filesize

    1KB

    MD5

    75c5c83f6de708dbae8a79a2436bb531

    SHA1

    c68f0a314b17ad8b5e8a5db8b86badcd595fc269

    SHA256

    ed9b224a03a64c5a4182ba3a734301ddd31cb3f70a32155a2210f87425d4e258

    SHA512

    d575ea215221197be84db1633ac8bc451a8f2de6b183040ddc4abe5799c54b0f323c7e19f2cae4adb8f14ac6ee50b91a1edc011bdf2f82dc49c808949552cf1b

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bbgmjpya.ux1.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk

    Filesize

    771B

    MD5

    970ae9eacc7409421253acac0c2e9335

    SHA1

    65021b1aa91f9b3199b116a2e9a40479c2080871

    SHA256

    f7770683d01c3a629e53245ed73c13c6951c95933080b9f23b1f507196f5582f

    SHA512

    aa86f2fa252833003945edd076af881ec13f956c20c085c2382e791e99a97cd2090e6a1ed71e403e164dea069ca7030b9d3807b37da3e69b8213682977a5b2aa

  • C:\Users\Admin\AppData\Roaming\XClient.exe

    Filesize

    65KB

    MD5

    e61b7b5567e85dafef933bc75eb974f0

    SHA1

    112fd88adac00dfeaaaab3ec3dd0095f940ba257

    SHA256

    3606fbab92dc9da545537d723bc5529394d358b24878729c124d1cc582ba4b57

    SHA512

    701826564782f4c3d6b9d3e8f25c0bb3612e6eb1c4face0c270301c1f07d85849399e73507d50ff1152ba941f0ea4135ef79832e4aeaefbcb4d215b70b7ec8ef

  • memory/2636-15-0x00007FF8FE650000-0x00007FF8FF112000-memory.dmp

    Filesize

    10.8MB

  • memory/2636-9-0x00007FF8FE650000-0x00007FF8FF112000-memory.dmp

    Filesize

    10.8MB

  • memory/2636-16-0x00007FF8FE650000-0x00007FF8FF112000-memory.dmp

    Filesize

    10.8MB

  • memory/2636-17-0x00007FF8FE650000-0x00007FF8FF112000-memory.dmp

    Filesize

    10.8MB

  • memory/2636-20-0x00007FF8FE650000-0x00007FF8FF112000-memory.dmp

    Filesize

    10.8MB

  • memory/2636-14-0x000002A575FA0000-0x000002A575FC2000-memory.dmp

    Filesize

    136KB

  • memory/2636-3-0x00007FF8FE650000-0x00007FF8FF112000-memory.dmp

    Filesize

    10.8MB

  • memory/3716-67-0x000002478FD80000-0x000002478FD81000-memory.dmp

    Filesize

    4KB

  • memory/3716-77-0x000002478FD80000-0x000002478FD81000-memory.dmp

    Filesize

    4KB

  • memory/3716-72-0x000002478FD80000-0x000002478FD81000-memory.dmp

    Filesize

    4KB

  • memory/3716-71-0x000002478FD80000-0x000002478FD81000-memory.dmp

    Filesize

    4KB

  • memory/3716-66-0x000002478FD80000-0x000002478FD81000-memory.dmp

    Filesize

    4KB

  • memory/3716-65-0x000002478FD80000-0x000002478FD81000-memory.dmp

    Filesize

    4KB

  • memory/3716-73-0x000002478FD80000-0x000002478FD81000-memory.dmp

    Filesize

    4KB

  • memory/3716-74-0x000002478FD80000-0x000002478FD81000-memory.dmp

    Filesize

    4KB

  • memory/3716-76-0x000002478FD80000-0x000002478FD81000-memory.dmp

    Filesize

    4KB

  • memory/3716-75-0x000002478FD80000-0x000002478FD81000-memory.dmp

    Filesize

    4KB

  • memory/3904-54-0x00007FF8FE653000-0x00007FF8FE655000-memory.dmp

    Filesize

    8KB

  • memory/3904-1-0x0000000000A70000-0x0000000000A86000-memory.dmp

    Filesize

    88KB

  • memory/3904-60-0x00007FF8FE650000-0x00007FF8FF112000-memory.dmp

    Filesize

    10.8MB

  • memory/3904-2-0x00007FF8FE650000-0x00007FF8FF112000-memory.dmp

    Filesize

    10.8MB

  • memory/3904-0-0x00007FF8FE653000-0x00007FF8FE655000-memory.dmp

    Filesize

    8KB