Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/03/2024, 11:52

General

  • Target
    214314acb198f14903fb16538450fe69_JaffaCakes118.exe
  • Size 274KB
  • Sample240329-n1rtxagh38
  • SHA256 fa708dbd323666bef72779702e67ea18192727f8d881ed8cd295619b892e6f1b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • AgentTesla

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

  • AgentTesla payload 5 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\214314acb198f14903fb16538450fe69_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\214314acb198f14903fb16538450fe69_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4000
    • C:\Users\Admin\AppData\Local\Temp\214314acb198f14903fb16538450fe69_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\214314acb198f14903fb16538450fe69_JaffaCakes118.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:5044
  • 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=4088 --field-trial-handle=2676,i,447940133669489189,1353734109898858672,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3608

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          oaolxjpjc.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsiDC7.tmp\oaolxjpjc.dll
          • Size 26KB
          • SHA256 7c818c689d9194c90a1ecdd7838cd59ff216971cad20caf8e091d9fa48c7f3fe
          • MD5 SHA1 SHA512 SSDEEP

          memory/4000-12-0x00000000751A0000-0x00000000751AA000-memory.dmp

          memory/4000-8-0x00000000751A0000-0x00000000751AA000-memory.dmp

          memory/5044-19-0x0000000005000000-0x0000000005092000-memory.dmp

          memory/5044-21-0x00000000050B0000-0x000000000514C000-memory.dmp

          memory/5044-10-0x0000000000400000-0x000000000044C000-memory.dmp

          memory/5044-13-0x0000000000400000-0x000000000044C000-memory.dmp

          memory/5044-14-0x00000000754B0000-0x0000000075C60000-memory.dmp

          memory/5044-15-0x0000000002680000-0x0000000002690000-memory.dmp

          memory/5044-16-0x00000000022F0000-0x000000000232C000-memory.dmp

          memory/5044-17-0x0000000002680000-0x0000000002690000-memory.dmp

          memory/5044-18-0x0000000004A10000-0x0000000004FB4000-memory.dmp

          memory/5044-9-0x0000000000400000-0x000000000044C000-memory.dmp

          memory/5044-20-0x0000000002680000-0x0000000002690000-memory.dmp

          memory/5044-11-0x0000000000400000-0x000000000044C000-memory.dmp

          memory/5044-23-0x0000000005C10000-0x0000000005C28000-memory.dmp

          memory/5044-24-0x0000000005C50000-0x0000000005CB6000-memory.dmp

          memory/5044-25-0x00000000754B0000-0x0000000075C60000-memory.dmp

          memory/5044-27-0x0000000002680000-0x0000000002690000-memory.dmp

          memory/5044-28-0x0000000002680000-0x0000000002690000-memory.dmp

          memory/5044-29-0x0000000002680000-0x0000000002690000-memory.dmp

          memory/5044-30-0x0000000002680000-0x0000000002690000-memory.dmp

          memory/5044-38-0x0000000000950000-0x00000000009A0000-memory.dmp

          memory/5044-39-0x0000000000720000-0x000000000072A000-memory.dmp