Analysis

  • max time kernel
    120s
  • max time network
    126s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    24/11/2021, 06:51

General

  • Target
    Payment advice. pdf.............................exe
  • Size 445KB
  • Sample211124-hmhq7acbbm
  • SHA256 b22cde1e2d6bc7eb7dd54d804083f7286607668cce5d965ecdaedeb78ff8c08a
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.oxc-ph.com

  • Port

    587

  • Password

    oxychempassword

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment advice. pdf.............................exe
    "C:\Users\Admin\AppData\Local\Temp\Payment advice. pdf.............................exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2212
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WoZQnrFGWPS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8171.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3764
    • C:\Users\Admin\AppData\Local\Temp\Payment advice. pdf.............................exe
      "{path}"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2132
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 696
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2064

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/2132-118-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/2132-122-0x0000000000D50000-0x0000000000DFE000-memory.dmp

        memory/2212-115-0x00000000011D0000-0x00000000011D1000-memory.dmp