Analysis

  • max time kernel
    118s
  • max time network
    176s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    21-01-2025 16:46

General

  • Target

    RV URGENTE!!, NOTIFICACIÓN AUTO ASUME CONOCIMIENTO ACCIÓN DE TUTELA 2024-00198.exe

  • Size

    2.1MB

  • MD5

    a2a55857c207bceda9c7f57f0e2d6d00

  • SHA1

    5c54ca5c8dc1a54accc1fe633dabb732d03b9aa9

  • SHA256

    c8fcdd95c7781ad4d31631ef2d32fd375b0c19f2f5e0b672213d47a5486d51af

  • SHA512

    6759adb8e309de8d28dc37f3d0028798e92f60477e5685f30ea66c10406dbcdf17410106b7cb0c22d5b1131cc4701cee69a5a759fd09fc889de2df65f940fc4a

  • SSDEEP

    24576:YhJLQReYepwifQggqPyIzmH5loQgYrQAiMfXQg9wgKy+1gd7Z4:HD8gqP9zmH5l0YBt+gnAA7O

Malware Config

Extracted

Family

xworm

Version

5.0

C2

87.120.116.179:1300

Mutex

k2ajRGAWWdwZwgsE

Attributes
  • install_file

    USB.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RV URGENTE!!, NOTIFICACIÓN AUTO ASUME CONOCIMIENTO ACCIÓN DE TUTELA 2024-00198.exe
    "C:\Users\Admin\AppData\Local\Temp\RV URGENTE!!, NOTIFICACIÓN AUTO ASUME CONOCIMIENTO ACCIÓN DE TUTELA 2024-00198.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2520
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2228

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2228-1-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/2228-3-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

    Filesize

    4KB

  • memory/2228-4-0x0000000000080000-0x0000000000090000-memory.dmp

    Filesize

    64KB

  • memory/2228-7-0x0000000004870000-0x00000000048B0000-memory.dmp

    Filesize

    256KB

  • memory/2228-8-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

    Filesize

    4KB

  • memory/2228-9-0x0000000004870000-0x00000000048B0000-memory.dmp

    Filesize

    256KB

  • memory/2520-0-0x0000000000230000-0x0000000000259000-memory.dmp

    Filesize

    164KB

  • memory/2520-6-0x0000000000360000-0x00000000003B8000-memory.dmp

    Filesize

    352KB