Analysis

  • max time kernel
    150s
  • max time network
    149s
  • 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, 13:11

General

  • Target

    CHEAT NE PIZDI.exe

  • Size

    197KB

  • MD5

    48c8a6d100fb89f92a8080697133d77f

  • SHA1

    19c8b82c1164575b88abea63cbff500fd5ec26b7

  • SHA256

    622cc6e79e17696dc0c8a621677765cabe8b48ce5d40881bf71b463223e16364

  • SHA512

    e440057421e96a2ed3043a828ffe9b0738c1c532d9bb63d214e8809a1e2d779e38e2b0cab3f539acac44216753fe7b47f8109e5ec7578873f6efc7a150630549

  • SSDEEP

    3072:Yd9xkHFE9jnOjE8SKfbzxcwg7es6/Vsb8VKTup49oJMfF/H9N3Ky9NzLnj:Y6E9XUhcX7elbKTuq9bfF/H9d9n

Malware Config

Extracted

Family

xworm

Version

5.0

C2

ohsorry-20836.portmap.host:20836

Mutex

WHNildkiUcLMmL9K

Attributes
  • install_file

    USB.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 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).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CHEAT NE PIZDI.exe
    "C:\Users\Admin\AppData\Local\Temp\CHEAT NE PIZDI.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4004
    • C:\Users\Admin\AppData\Local\Temp\tajanr.exe
      "C:\Users\Admin\AppData\Local\Temp\tajanr.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      PID:6096
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
      PID:4800

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tajanr.exe

      Filesize

      436KB

      MD5

      a9d32c2ea6c4957e4bfef9fb0dabd8d8

      SHA1

      5dac99e3da8846602382c57a3fc24ccc4613ea20

      SHA256

      d167d7de10c0a15976d2877b5ce0bae62f1c9825e07880c58a1a3e01d2126144

      SHA512

      b88f6707dda39ea2c509e6ae050339c054648fa0dd5d5385b53bb75f7f3a3feacdf69f580796701d7cc45e779456da4205f466352779ab0a0616581c7615b31e

    • memory/4004-0-0x00007FF969EB3000-0x00007FF969EB5000-memory.dmp

      Filesize

      8KB

    • memory/4004-1-0x0000000000980000-0x00000000009B6000-memory.dmp

      Filesize

      216KB

    • memory/4004-2-0x00007FF969EB0000-0x00007FF96A972000-memory.dmp

      Filesize

      10.8MB

    • memory/4004-3-0x00007FF969EB3000-0x00007FF969EB5000-memory.dmp

      Filesize

      8KB

    • memory/4004-4-0x00007FF969EB0000-0x00007FF96A972000-memory.dmp

      Filesize

      10.8MB

    • memory/6096-16-0x0000000000680000-0x0000000000681000-memory.dmp

      Filesize

      4KB

    • memory/6096-18-0x0000000000680000-0x0000000000681000-memory.dmp

      Filesize

      4KB

    • memory/6096-17-0x0000000000400000-0x0000000000474000-memory.dmp

      Filesize

      464KB

    • memory/6096-20-0x0000000000400000-0x0000000000474000-memory.dmp

      Filesize

      464KB