Analysis

  • max time kernel
    130s
  • max time network
    119s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    04/07/2021, 17:37

General

  • Target
    af0acd2fd5e0db78e6b5232245a2bf03.exe
  • Size 754KB
  • Sample210704-q5dee8g69x
  • SHA256 fe24a2b0b07d806e55c075d1c0de7f817b03f9faa23eeba5370ba6acd8272ecd
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.asmidal-dz.com

  • Port

    587

  • Password

    @5mid@l2020

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\af0acd2fd5e0db78e6b5232245a2bf03.exe
    "C:\Users\Admin\AppData\Local\Temp\af0acd2fd5e0db78e6b5232245a2bf03.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3988
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NIhmgyXVodF" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAFFC.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1332
    • C:\Users\Admin\AppData\Local\Temp\af0acd2fd5e0db78e6b5232245a2bf03.exe
      "{path}"
      2⤵
        PID:2120
      • C:\Users\Admin\AppData\Local\Temp\af0acd2fd5e0db78e6b5232245a2bf03.exe
        "{path}"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2768

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/2768-138-0x0000000002E51000-0x0000000002E52000-memory.dmp

          memory/2768-135-0x0000000005F30000-0x0000000005F31000-memory.dmp

          memory/2768-134-0x0000000002E30000-0x0000000002E31000-memory.dmp

          memory/2768-133-0x0000000002E50000-0x0000000002E51000-memory.dmp

          memory/2768-126-0x0000000000400000-0x000000000043C000-memory.dmp

          memory/3988-119-0x00000000053F0000-0x00000000058EE000-memory.dmp

          memory/3988-123-0x000000000A280000-0x000000000A2DF000-memory.dmp

          memory/3988-122-0x0000000007660000-0x00000000076F9000-memory.dmp

          memory/3988-120-0x0000000007760000-0x0000000007762000-memory.dmp

          memory/3988-121-0x0000000007890000-0x0000000007891000-memory.dmp

          memory/3988-114-0x0000000000BA0000-0x0000000000BA1000-memory.dmp

          memory/3988-118-0x0000000005620000-0x0000000005621000-memory.dmp

          memory/3988-117-0x00000000054B0000-0x00000000054B1000-memory.dmp

          memory/3988-116-0x00000000058F0000-0x00000000058F1000-memory.dmp