Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/06/2024, 18:31

General

  • Target
    async.exe
  • Size 668KB
  • Sample240614-w6c7pssblh
  • SHA256 a8602f61da135d8dd308b6acb0338f9b9da4024f9ff302490800af85b242eeed
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 64.226.123.178:6098

Mutex
  • 1z0ENxCLSR3XRSre

Attributes
  • install_file

    USB.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\async.exe
    "C:\Users\Admin\AppData\Local\Temp\async.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2448
    • C:\Users\Admin\AppData\Local\Temp\async.exe
      "C:\Users\Admin\AppData\Local\Temp\async.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4044
  • 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 --field-trial-handle=4040,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=4196 /prefetch:8
    1⤵
      PID:4304

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          async.exe

          • Path C:\Users\Admin\AppData\Local\Temp\async.exe
          • Size 668KB
          • SHA256 a8602f61da135d8dd308b6acb0338f9b9da4024f9ff302490800af85b242eeed
          • MD5 SHA1 SHA512 SSDEEP

          memory/2448-3-0x0000000004F40000-0x0000000004FD2000-memory.dmp

          memory/2448-8-0x00000000051B0000-0x00000000051B8000-memory.dmp

          memory/2448-0-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

          memory/2448-4-0x0000000074A10000-0x00000000751C0000-memory.dmp

          memory/2448-5-0x0000000005100000-0x000000000510A000-memory.dmp

          memory/2448-6-0x0000000005120000-0x0000000005186000-memory.dmp

          memory/2448-7-0x0000000005250000-0x00000000052EC000-memory.dmp

          memory/2448-2-0x0000000005450000-0x00000000059F4000-memory.dmp

          memory/2448-1-0x0000000000440000-0x00000000004EC000-memory.dmp

          memory/2448-13-0x0000000074A10000-0x00000000751C0000-memory.dmp

          memory/4044-11-0x0000000074A10000-0x00000000751C0000-memory.dmp

          memory/4044-9-0x0000000000400000-0x0000000000436000-memory.dmp

          memory/4044-14-0x0000000074A10000-0x00000000751C0000-memory.dmp

          memory/4044-15-0x0000000074A10000-0x00000000751C0000-memory.dmp