Analysis

  • max time kernel
    142s
  • max time network
    143s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250218-en
  • resource tags

    arch:x64arch:x86image:win11-20250218-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    02/03/2025, 03:35

General

  • Target

    loader.exe

  • Size

    49KB

  • MD5

    b1e135b13711ae91bedad8c0051b9a82

  • SHA1

    574f39cc52819241d99f711bde4de6295c696eb4

  • SHA256

    7847d8ec4fbd4b2babb90711141c3f155a19830f7460f93ebff7e5a84a507fa3

  • SHA512

    ef8f7c46d1e3e4be2370e2b88420e95f2eb70b94365dca5349b72d952b6f3c4ec060e9abd86b9235f0427897250a6f08b8b941f0a1dfe1bbf0a4a6886e9d7cbc

  • SSDEEP

    768:HmfAt0ZycM4P1hUyXUF+0BB8utdGze410m2FN79e3S6MOAhMHWcn+U:HmC0ZyQhYF7XtdGPEF19OS6MOA2Wc

Score
10/10

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

eVBE84iJqw0d8EjH

Attributes
  • Install_directory

    %Temp%

  • install_file

    USB.exe

  • pastebin_url

    https://pastebin.com/raw/H3wFXmEi

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\loader.exe
    "C:\Users\Admin\AppData\Local\Temp\loader.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4144
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --string-annotations --always-read-main-dll --field-trial-handle=4552,i,12331736354284649584,1031380232325094842,262144 --variations-seed-version --mojo-platform-channel-handle=3708 /prefetch:14
    1⤵
      PID:1860
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --string-annotations --always-read-main-dll --field-trial-handle=5072,i,12331736354284649584,1031380232325094842,262144 --variations-seed-version --mojo-platform-channel-handle=4068 /prefetch:14
      1⤵
        PID:1548

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/4144-0-0x00007FFC669C3000-0x00007FFC669C5000-memory.dmp

        Filesize

        8KB

      • memory/4144-1-0x0000000000350000-0x0000000000362000-memory.dmp

        Filesize

        72KB

      • memory/4144-2-0x00007FFC669C0000-0x00007FFC67482000-memory.dmp

        Filesize

        10.8MB

      • memory/4144-3-0x00007FFC669C0000-0x00007FFC67482000-memory.dmp

        Filesize

        10.8MB