Analysis

  • max time kernel
    61s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/02/2023, 08:20

General

  • Target
    DHL Express 1224811733.exe
  • Size 846KB
  • Sample230227-j8fdmace63
  • SHA256 6d4eead03f27551a1c48b4da0e274a7d889002e673b578a5782122fa11eb21dc
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://discord.com/api/webhooks/1078583741573767239/JZQPjky8rqPcJghEx5_Yb02_z7KQzE661ZEA5DS0IpEP4tMOOQUK-gcD6l-_DMB3dif_

Signatures

  • AgentTesla

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

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL Express 1224811733.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL Express 1224811733.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1000
    • C:\Users\Admin\AppData\Local\Temp\DHL Express 1224811733.exe
      "C:\Users\Admin\AppData\Local\Temp\DHL Express 1224811733.exe"
      2⤵
        PID:3764
      • C:\Users\Admin\AppData\Local\Temp\DHL Express 1224811733.exe
        "C:\Users\Admin\AppData\Local\Temp\DHL Express 1224811733.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:228

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          DHL Express 1224811733.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\DHL Express 1224811733.exe.log
          • Size 1KB
          • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
          • MD5 SHA1 SHA512

          memory/228-140-0x0000000000400000-0x0000000000430000-memory.dmp

          memory/228-155-0x0000000005580000-0x0000000005590000-memory.dmp

          memory/228-148-0x0000000007350000-0x0000000007512000-memory.dmp

          memory/228-147-0x0000000007070000-0x00000000070C0000-memory.dmp

          memory/228-144-0x0000000005580000-0x0000000005590000-memory.dmp

          memory/228-143-0x00000000054A0000-0x0000000005506000-memory.dmp

          memory/1000-136-0x00000000059D0000-0x00000000059DA000-memory.dmp

          memory/1000-139-0x0000000009690000-0x000000000972C000-memory.dmp

          memory/1000-138-0x0000000005B50000-0x0000000005B60000-memory.dmp

          memory/1000-137-0x0000000005B50000-0x0000000005B60000-memory.dmp

          memory/1000-133-0x0000000000ED0000-0x0000000000FAA000-memory.dmp

          memory/1000-135-0x0000000005930000-0x00000000059C2000-memory.dmp

          memory/1000-134-0x0000000005FE0000-0x0000000006584000-memory.dmp