Analysis

  • max time kernel
    123s
  • max time network
    114s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    03/08/2021, 05:47

General

  • Target
    PO 60117.exe
  • Size 575KB
  • Sample210803-e2knl51t5x
  • SHA256 21213a4fbd18c618e7c49d6cb98c25ecee2c8beb4862bb46fe00ea28b26d0f16
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.brothers-shipping.com

  • Port

    587

  • Password

    196401613410045

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO 60117.exe
    "C:\Users\Admin\AppData\Local\Temp\PO 60117.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3424
    • C:\Users\Admin\AppData\Local\Temp\PO 60117.exe
      "{path}"
      2⤵
        PID:1840
      • C:\Users\Admin\AppData\Local\Temp\PO 60117.exe
        "{path}"
        2⤵
          PID:3120
        • C:\Users\Admin\AppData\Local\Temp\PO 60117.exe
          "{path}"
          2⤵
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: RenamesItself
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:3364

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            memory/3364-133-0x0000000001840000-0x0000000001841000-memory.dmp

            memory/3364-131-0x0000000006520000-0x0000000006521000-memory.dmp

            memory/3364-130-0x0000000005C40000-0x0000000005C41000-memory.dmp

            memory/3364-129-0x00000000057C0000-0x0000000005CBE000-memory.dmp

            memory/3364-127-0x0000000005CC0000-0x0000000005CC1000-memory.dmp

            memory/3364-122-0x0000000000400000-0x000000000043C000-memory.dmp

            memory/3424-118-0x0000000004B10000-0x0000000004B11000-memory.dmp

            memory/3424-121-0x0000000007800000-0x0000000007851000-memory.dmp

            memory/3424-120-0x00000000052E0000-0x0000000005373000-memory.dmp

            memory/3424-119-0x0000000004BB0000-0x0000000004BB1000-memory.dmp

            memory/3424-114-0x0000000000090000-0x0000000000091000-memory.dmp

            memory/3424-117-0x0000000004900000-0x0000000004902000-memory.dmp

            memory/3424-116-0x0000000004B00000-0x0000000004B01000-memory.dmp