Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20250217-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250217-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    06/03/2025, 15:15

General

  • Target

    XClient.exe

  • Size

    32KB

  • MD5

    488edd77586b5974047f6306f2fa76c6

  • SHA1

    0d8954f5f4afb1715dc9f1bb2881a9f2f3b9f294

  • SHA256

    dd72ca01f027c7e78eddab85ae78a2e5dadf0448efb881eee83ae58d78e6683a

  • SHA512

    50ca70a8bb167e8054ed3bdcfc83c588851719f8d3935b4e7041031a23e45be157c2920672a8792eeac3121ab3e3f826c46f9a54cb3e7a3288e40ecf7921c1ba

  • SSDEEP

    384:/YxRXcrP31VZBELRUnvJff3cdiwJVARJpkFTBLToOZwxJd2v99IkuisO3VFxOjhH:DPjgRevJ3cdXVAGF/9jpOjhTbf

Score
10/10

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

7nuSUIfQmPuMEcMT

Attributes
  • install_file

    USB.exe

  • pastebin_url

    https://pastebin.com/raw/4zaiEtZS

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 38 IoCs
  • 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 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4608
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1544
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4268
    • C:\Users\Admin\Desktop\XClient.exe
      "C:\Users\Admin\Desktop\XClient.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2768
    • C:\Users\Admin\Desktop\XClient.exe
      "C:\Users\Admin\Desktop\XClient.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4840

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1544-13-0x0000026EEBB70000-0x0000026EEBB71000-memory.dmp

      Filesize

      4KB

    • memory/1544-12-0x0000026EEBB70000-0x0000026EEBB71000-memory.dmp

      Filesize

      4KB

    • memory/1544-9-0x0000026EEBB70000-0x0000026EEBB71000-memory.dmp

      Filesize

      4KB

    • memory/1544-3-0x0000026EEBB70000-0x0000026EEBB71000-memory.dmp

      Filesize

      4KB

    • memory/1544-5-0x0000026EEBB70000-0x0000026EEBB71000-memory.dmp

      Filesize

      4KB

    • memory/1544-4-0x0000026EEBB70000-0x0000026EEBB71000-memory.dmp

      Filesize

      4KB

    • memory/1544-10-0x0000026EEBB70000-0x0000026EEBB71000-memory.dmp

      Filesize

      4KB

    • memory/1544-15-0x0000026EEBB70000-0x0000026EEBB71000-memory.dmp

      Filesize

      4KB

    • memory/1544-11-0x0000026EEBB70000-0x0000026EEBB71000-memory.dmp

      Filesize

      4KB

    • memory/1544-14-0x0000026EEBB70000-0x0000026EEBB71000-memory.dmp

      Filesize

      4KB

    • memory/4608-0-0x00007FFB1CE33000-0x00007FFB1CE35000-memory.dmp

      Filesize

      8KB

    • memory/4608-1-0x0000000000CB0000-0x0000000000CBE000-memory.dmp

      Filesize

      56KB

    • memory/4608-2-0x00007FFB1CE30000-0x00007FFB1D8F2000-memory.dmp

      Filesize

      10.8MB

    • memory/4608-16-0x00007FFB1CE33000-0x00007FFB1CE35000-memory.dmp

      Filesize

      8KB

    • memory/4608-17-0x00007FFB1CE30000-0x00007FFB1D8F2000-memory.dmp

      Filesize

      10.8MB

    • memory/4608-19-0x00007FFB1CE30000-0x00007FFB1D8F2000-memory.dmp

      Filesize

      10.8MB