Analysis

  • max time kernel
    132s
  • max time network
    120s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    12/10/2021, 12:20

General

  • Target
    Purchase order 4102543264.exe
  • Size 629KB
  • Sample211012-pht2zscch8
  • SHA256 1984e19ba7d38230238171cf956907134269323cbead0eaf3c2282506f950d95
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.tniexpressworldwide.com

  • Port

    587

  • Password

    DeEPFYi3

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase order 4102543264.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase order 4102543264.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:996
    • C:\Users\Admin\AppData\Local\Temp\Purchase order 4102543264.exe
      "{path}"
      2⤵
        PID:1928
      • C:\Users\Admin\AppData\Local\Temp\Purchase order 4102543264.exe
        "{path}"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1960

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/996-119-0x0000000005560000-0x0000000005561000-memory.dmp

          memory/996-116-0x00000000054B0000-0x00000000054B1000-memory.dmp

          memory/996-118-0x00000000055F0000-0x00000000055F1000-memory.dmp

          memory/996-114-0x0000000000C00000-0x0000000000C01000-memory.dmp

          memory/996-120-0x0000000005550000-0x0000000005A4E000-memory.dmp

          memory/996-121-0x00000000057E0000-0x00000000057E1000-memory.dmp

          memory/996-117-0x0000000005A50000-0x0000000005A51000-memory.dmp

          memory/996-122-0x0000000002DD0000-0x0000000002DDE000-memory.dmp

          memory/996-124-0x000000000AD50000-0x000000000AD88000-memory.dmp

          memory/996-123-0x0000000008CD0000-0x0000000008D4F000-memory.dmp

          memory/1960-125-0x0000000000400000-0x000000000043C000-memory.dmp

          memory/1960-132-0x00000000057E0000-0x0000000005CDE000-memory.dmp

          memory/1960-133-0x0000000003250000-0x0000000003251000-memory.dmp

          memory/1960-134-0x00000000063D0000-0x00000000063D1000-memory.dmp

          memory/1960-137-0x00000000057E0000-0x0000000005CDE000-memory.dmp