Analysis

  • max time kernel
    125s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    12/05/2022, 07:23

General

  • Target
    DHL Receipt_#AWB811470484778.exe
  • Size 552KB
  • Sample220512-h7r6csdgen
  • SHA256 845552c3b6efd3b155eebf54ef7cbff7d2e5072da68575c243dfa44e39d9aeb4
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.datsun-nepal.com

  • Port

    587

  • Password

    7Ud+1A+=2z6p

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.datsun-nepal.com

  • Port

    587

  • Password

    7Ud+1A+=2z6p

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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL Receipt_#AWB811470484778.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL Receipt_#AWB811470484778.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1536
    • C:\Users\Admin\AppData\Local\Temp\DHL Receipt_#AWB811470484778.exe
      "C:\Users\Admin\AppData\Local\Temp\DHL Receipt_#AWB811470484778.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1224

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1224-137-0x0000000000400000-0x000000000043A000-memory.dmp

        memory/1224-138-0x0000000006470000-0x00000000064C0000-memory.dmp

        memory/1536-130-0x0000000000010000-0x000000000009A000-memory.dmp

        memory/1536-131-0x00000000050C0000-0x0000000005664000-memory.dmp

        memory/1536-132-0x0000000004A30000-0x0000000004AC2000-memory.dmp

        memory/1536-133-0x0000000004C50000-0x0000000004CEC000-memory.dmp

        memory/1536-134-0x0000000004AE0000-0x0000000004AEA000-memory.dmp

        memory/1536-135-0x00000000071A0000-0x0000000007206000-memory.dmp