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Analysis

  • max time kernel
    1191s
  • max time network
    1199s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    06/04/2024, 23:47

General

  • Target

    tjworkaround.exe

  • Size

    38KB

  • MD5

    316c7a42c30ac83066309fc491247084

  • SHA1

    3f2bcacddee6346caa95ba736f97009e5aba0f39

  • SHA256

    41cea90b8e919a1217ccfdcad71be256a50755aca407f1479d63d2e1d35d4194

  • SHA512

    d5d62da7ad000d36ddae35c8e961ac1c3a253760c5c9e1fcb9d29248f08feaddebc687a520d5961435b71c3da04d5337d541d339eb6f77453284283946af22c4

  • SSDEEP

    768:ypz4jeFbyWunfc5NiJQQW7FWPA9xViOMh0jf:yqCbZUxN+FR9xViOMyj

Malware Config

Extracted

Family

xworm

Version

5.0

C2

127.0.0.1:12397

147.185.221.19:12397

bay-currencies.gl.at.ply.gg:12397

Mutex

mrHCROvGwsLfwHBw

Attributes
  • Install_directory

    %AppData%

  • install_file

    runbroker.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Drops startup file 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).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tjworkaround.exe
    "C:\Users\Admin\AppData\Local\Temp\tjworkaround.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2660
  • C:\Windows\system32\notepad.exe
    "C:\Windows\system32\notepad.exe"
    1⤵
      PID:2688

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Log.tmp

      Filesize

      253B

      MD5

      5f1391d02f5dc8a87eb47869f3af5dbb

      SHA1

      16ce1a19206cb7f55b1e3431d0cbe7acc0446ade

      SHA256

      fd0241a7d8c6716a81afb063bb2c3a2022d5fa70aba045c439ce9ea2b15e826a

      SHA512

      9a7c52775f2551bbf758d0516c2636f19feceba4b6c301acde24cdeda80fabf80054abb80a23dffe3a896725f4bc5e6b7fdc0f2e1f921206af189b4d48473669

    • memory/2660-0-0x0000000000920000-0x0000000000930000-memory.dmp

      Filesize

      64KB

    • memory/2660-1-0x000007FEF5810000-0x000007FEF61FC000-memory.dmp

      Filesize

      9.9MB

    • memory/2660-6-0x000000001AC00000-0x000000001AC80000-memory.dmp

      Filesize

      512KB

    • memory/2660-13-0x000000001AC00000-0x000000001AC80000-memory.dmp

      Filesize

      512KB

    • memory/2660-99-0x000007FEF5810000-0x000007FEF61FC000-memory.dmp

      Filesize

      9.9MB

    • memory/2660-107-0x000000001AC00000-0x000000001AC80000-memory.dmp

      Filesize

      512KB