Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    16/09/2026, 15:39

General

  • Target
    system.exe
  • Size 30KB
  • Sample260916-s3m1yscr21
  • SHA256 938ce61ced2cc86a69aefe632e7cdd931305f63750483c43b6461113e4be777e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 3.0

C2
  • 82.47.101.153:7165

Mutex
  • W5UazQxWqWYqnndf

Attributes
  • install_file

    USB.exe

aes.plain

Signatures

  • Family: Xworm

    Xworm is a remote access trojan written in C#.

  • Detect Xworm Payload 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\system.exe
    "C:\Users\Admin\AppData\Local\Temp\system.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3148
    • C:\Users\Admin\AppData\Local\Temp\ypmpbe.exe
      "C:\Users\Admin\AppData\Local\Temp\ypmpbe.exe"
      2⤵
      • Executes dropped EXE
      • Writes to the Master Boot Record (MBR)
      PID:5636
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:4676
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x0000000000000504 0x00000000000004F4
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1236

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          ypmpbe.exe

          • Path C:\Users\Admin\AppData\Local\Temp\ypmpbe.exe
          • Size 802KB
          • SHA256 68a2b9da01ab0d8999c490f680d3e3fa7f12c0ec80a5c1ecae51af6047663cf4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/3148-1-0x00000000009D0000-0x00000000009DE000-memory.dmp

          memory/3148-0-0x00007FFB3DF3F000-0x00007FFB3DF40000-memory.dmp

          memory/3148-2-0x00007FFB3DDB0000-0x00007FFB3E754000-memory.dmp

          memory/3148-3-0x00007FFB3DDB0000-0x00007FFB3E754000-memory.dmp

          memory/3148-4-0x00007FFB3DDB0000-0x00007FFB3E754000-memory.dmp

          memory/3148-5-0x0000000002C00000-0x0000000002C0A000-memory.dmp

          memory/5636-19-0x00007FFB3DDB0000-0x00007FFB3E754000-memory.dmp

          memory/5636-16-0x00007FFB3DDB0000-0x00007FFB3E754000-memory.dmp

          memory/5636-18-0x00007FFB3DDB0000-0x00007FFB3E754000-memory.dmp

          memory/5636-17-0x0000029918D20000-0x0000029918DEE000-memory.dmp

          memory/5636-20-0x00007FFB3DDB0000-0x00007FFB3E754000-memory.dmp

          memory/5636-21-0x00007FFB3DDB0000-0x00007FFB3E754000-memory.dmp

          memory/5636-22-0x00007FFB3DDB0000-0x00007FFB3E754000-memory.dmp

          memory/5636-23-0x00007FFB3DDB0000-0x00007FFB3E754000-memory.dmp

          memory/5636-24-0x00007FFB3DDB0000-0x00007FFB3E754000-memory.dmp

          memory/5636-25-0x00007FFB3DDB0000-0x00007FFB3E754000-memory.dmp

          memory/5636-26-0x00007FFB3DDB0000-0x00007FFB3E754000-memory.dmp

          memory/5636-27-0x00007FFB3DDB0000-0x00007FFB3E754000-memory.dmp

          memory/5636-28-0x00007FFB3DDB0000-0x00007FFB3E754000-memory.dmp