Analysis

  • max time kernel
    72s
  • max time network
    65s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20250217-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250217-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    04/03/2025, 17:55

General

  • Target

    XClient.exe

  • Size

    38KB

  • MD5

    f06449aeba429edebe5548a8d8c69c20

  • SHA1

    7992d6ca53f7f864e7e8c35fabd8977f12501fce

  • SHA256

    07103092725f8ea44b8c873d6d2db637453fffc42d05d0f3e02a51f05abce115

  • SHA512

    3252e3d70e6af7c1c709682c8ecf9f6fcd37d2db74d12605d82acf99923c36b33bb1165560b4b3616fac51c4b6f2519960e32a41d3fc4d7cba72734df997fe92

  • SSDEEP

    768:Qcf8pTYPfbEpjYnVQWbFo9BLMKA6+OwhxMvFG:QKEYX4SxFo9BLA6+OwQM

Score
10/10

Malware Config

Extracted

Family

xworm

Version

3.1

C2

newsletter-effects.gl.at.ply.gg:42069

Mutex

OUUT3AwKbkkDRPZO

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Looks up external IP address via web service 1 IoCs

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

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

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 48 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 59 IoCs
  • Suspicious use of SendNotifyMessage 59 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:5064
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1592
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2008

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1592-14-0x000002196B210000-0x000002196B211000-memory.dmp

      Filesize

      4KB

    • memory/1592-11-0x000002196B210000-0x000002196B211000-memory.dmp

      Filesize

      4KB

    • memory/1592-10-0x000002196B210000-0x000002196B211000-memory.dmp

      Filesize

      4KB

    • memory/1592-16-0x000002196B210000-0x000002196B211000-memory.dmp

      Filesize

      4KB

    • memory/1592-6-0x000002196B210000-0x000002196B211000-memory.dmp

      Filesize

      4KB

    • memory/1592-4-0x000002196B210000-0x000002196B211000-memory.dmp

      Filesize

      4KB

    • memory/1592-15-0x000002196B210000-0x000002196B211000-memory.dmp

      Filesize

      4KB

    • memory/1592-5-0x000002196B210000-0x000002196B211000-memory.dmp

      Filesize

      4KB

    • memory/1592-12-0x000002196B210000-0x000002196B211000-memory.dmp

      Filesize

      4KB

    • memory/1592-13-0x000002196B210000-0x000002196B211000-memory.dmp

      Filesize

      4KB

    • memory/5064-0-0x00007FF94CCF3000-0x00007FF94CCF5000-memory.dmp

      Filesize

      8KB

    • memory/5064-1-0x00000000004F0000-0x0000000000500000-memory.dmp

      Filesize

      64KB

    • memory/5064-3-0x00007FF94CCF0000-0x00007FF94D7B2000-memory.dmp

      Filesize

      10.8MB

    • memory/5064-2-0x00007FF94CCF0000-0x00007FF94D7B2000-memory.dmp

      Filesize

      10.8MB