Analysis

  • max time kernel
    1799s
  • max time network
    1805s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/04/2024, 22:54

General

  • Target
    XClient.exe
  • Size 63KB
  • Sample240401-2vmvnahh89
  • SHA256 fb1306e879286135143e822d17e2bf0f2531e5bf2b88f89f97878399a4ade592
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • xworm

C2
  • 147.185.221.16:40164

Attributes
  • install_file

    USB.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Looks up external IP address via web service 1 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3048
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /7
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2344
  • 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 --no-appcompat-clear --mojo-platform-channel-handle=4076 --field-trial-handle=2252,i,3429015581403167983,2708022432612919502,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:5580
    • 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 --no-appcompat-clear --mojo-platform-channel-handle=3772 --field-trial-handle=2252,i,3429015581403167983,2708022432612919502,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:5804

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            memory/2344-13-0x0000016127630000-0x0000016127631000-memory.dmp

            memory/2344-16-0x0000016127630000-0x0000016127631000-memory.dmp

            memory/2344-15-0x0000016127630000-0x0000016127631000-memory.dmp

            memory/2344-11-0x0000016127630000-0x0000016127631000-memory.dmp

            memory/2344-4-0x0000016127630000-0x0000016127631000-memory.dmp

            memory/2344-5-0x0000016127630000-0x0000016127631000-memory.dmp

            memory/2344-10-0x0000016127630000-0x0000016127631000-memory.dmp

            memory/2344-6-0x0000016127630000-0x0000016127631000-memory.dmp

            memory/2344-14-0x0000016127630000-0x0000016127631000-memory.dmp

            memory/2344-12-0x0000016127630000-0x0000016127631000-memory.dmp

            memory/3048-0-0x00000000005A0000-0x00000000005B6000-memory.dmp

            memory/3048-1-0x00007FFB007A0000-0x00007FFB01261000-memory.dmp

            memory/3048-3-0x00007FFB007A0000-0x00007FFB01261000-memory.dmp

            memory/3048-2-0x000000001B4E0000-0x000000001B4F0000-memory.dmp