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Analysis

  • max time kernel
    123s
  • max time network
    126s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250218-en
  • resource tags

    arch:x64arch:x86image:win11-20250218-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08/03/2025, 20:53

General

  • Target

    payload.exe

  • Size

    209KB

  • MD5

    e737f0619caaa10b2c2c04f88d8c723a

  • SHA1

    81e77cd927098a8974e0ee96e77ed534fb181d85

  • SHA256

    718ed0a3d6f82b36d5da2672c247c094362e616bf7f121756d00dc8a70371ecc

  • SHA512

    1f91990eb0d002984e0963282ee83d16ac158327e55d0bf4a0cc00add261a4173c4f5dec4f857d65469235b6c47f63c6bed9a32d35a3ea0a2839c67e23454cc5

  • SSDEEP

    3072:YV9qW1ZG0hVD+g7HII7qlnsf3zfK484WjOwIpa8:BA8GDv7oI2nQzRQ

Score
10/10

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    USB.exe

  • pastebin_url

    https://pastebin.com/raw/H3wFXmEi

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\payload.exe
    "C:\Users\Admin\AppData\Local\Temp\payload.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4944
  • 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=4624,i,8425512666034524542,4476834323552806530,262144 --variations-seed-version --mojo-platform-channel-handle=1660 /prefetch:14
    1⤵
      PID:5188
    • 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=4136,i,8425512666034524542,4476834323552806530,262144 --variations-seed-version --mojo-platform-channel-handle=4028 /prefetch:14
      1⤵
        PID:2112

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/4944-1-0x0000025A1FB20000-0x0000025A1FB5A000-memory.dmp

        Filesize

        232KB

      • memory/4944-0-0x00007FFF3DA33000-0x00007FFF3DA35000-memory.dmp

        Filesize

        8KB

      • memory/4944-2-0x0000025A3A2E0000-0x0000025A3A486000-memory.dmp

        Filesize

        1.6MB

      • memory/4944-3-0x00007FFF3DA30000-0x00007FFF3E4F2000-memory.dmp

        Filesize

        10.8MB

      • memory/4944-4-0x00007FFF3DA30000-0x00007FFF3E4F2000-memory.dmp

        Filesize

        10.8MB

      • memory/4944-5-0x0000025A3C880000-0x0000025A3C896000-memory.dmp

        Filesize

        88KB

      • memory/4944-6-0x00007FFF3DA30000-0x00007FFF3E4F2000-memory.dmp

        Filesize

        10.8MB

      • memory/4944-7-0x00007FFF3DA30000-0x00007FFF3E4F2000-memory.dmp

        Filesize

        10.8MB

      • memory/4944-8-0x00007FFF3DA30000-0x00007FFF3E4F2000-memory.dmp

        Filesize

        10.8MB