Analysis

  • max time kernel
    143s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/02/2024, 14:12

General

  • Target
    documents.exe
  • Size 1.0MB
  • Sample240229-rhtsbsca26
  • SHA256 886f846b4e04fd7074fcffe077c857f75656c41a8fb08d7738b1b5fc64e77aba
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\documents.exe
    "C:\Users\Admin\AppData\Local\Temp\documents.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4072
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Users\Admin\AppData\Local\Temp\documents.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2724
  • 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=1416 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:5000

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/2724-11-0x0000000000370000-0x00000000003B2000-memory.dmp

          memory/2724-12-0x00000000740F0000-0x00000000748A0000-memory.dmp

          memory/2724-13-0x0000000005220000-0x00000000057C4000-memory.dmp

          memory/2724-14-0x0000000004D40000-0x0000000004D50000-memory.dmp

          memory/2724-15-0x0000000004E50000-0x0000000004EB6000-memory.dmp

          memory/2724-16-0x0000000006240000-0x0000000006290000-memory.dmp

          memory/2724-17-0x0000000006330000-0x00000000063C2000-memory.dmp

          memory/2724-18-0x00000000062B0000-0x00000000062BA000-memory.dmp

          memory/2724-19-0x00000000740F0000-0x00000000748A0000-memory.dmp

          memory/2724-20-0x0000000004D40000-0x0000000004D50000-memory.dmp

          memory/4072-10-0x0000000001C10000-0x0000000001C14000-memory.dmp