Analysis

  • max time kernel
    128s
  • max time network
    125s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    24/11/2021, 14:03

General

  • Target
    50008248-SWIFT Copy, pdf ..exe
  • Size 633KB
  • Sample211124-rcpleschak
  • SHA256 e644c575f18d16b4e432bc02d45c35aff42affc618f7c08e3d9139405e0cea7c
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.yandex.com

  • Port

    587

  • Password

    graceofgod@amen

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\50008248-SWIFT Copy, pdf ..exe
    "C:\Users\Admin\AppData\Local\Temp\50008248-SWIFT Copy, pdf ..exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1012
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HRcpXbkZrxjl.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3536
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HRcpXbkZrxjl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2055.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3680
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1016

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1012-125-0x00000000096F0000-0x00000000096F1000-memory.dmp

        memory/1012-121-0x0000000007540000-0x0000000007541000-memory.dmp

        memory/1012-122-0x00000000093B0000-0x00000000093B1000-memory.dmp

        memory/1012-123-0x00000000093D0000-0x00000000093D4000-memory.dmp

        memory/1012-124-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

        memory/1012-126-0x0000000004A90000-0x0000000004AFA000-memory.dmp

        memory/1012-118-0x0000000000700000-0x0000000000701000-memory.dmp

        memory/1012-120-0x00000000079A0000-0x00000000079A1000-memory.dmp

        memory/1016-134-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/1016-390-0x00000000052A0000-0x000000000579E000-memory.dmp

        memory/1016-148-0x00000000052A0000-0x000000000579E000-memory.dmp

        memory/3536-146-0x0000000004CF0000-0x0000000004CF1000-memory.dmp

        memory/3536-131-0x0000000003350000-0x0000000003351000-memory.dmp

        memory/3536-130-0x00000000031A0000-0x00000000031A1000-memory.dmp

        memory/3536-139-0x0000000007670000-0x0000000007671000-memory.dmp

        memory/3536-140-0x0000000007710000-0x0000000007711000-memory.dmp

        memory/3536-141-0x0000000007860000-0x0000000007861000-memory.dmp

        memory/3536-143-0x0000000008130000-0x0000000008131000-memory.dmp

        memory/3536-144-0x00000000078D0000-0x00000000078D1000-memory.dmp

        memory/3536-145-0x0000000008480000-0x0000000008481000-memory.dmp

        memory/3536-147-0x0000000004CF2000-0x0000000004CF3000-memory.dmp

        memory/3536-133-0x0000000007900000-0x0000000007901000-memory.dmp

        memory/3536-129-0x00000000031A0000-0x00000000031A1000-memory.dmp

        memory/3536-149-0x0000000008770000-0x0000000008771000-memory.dmp

        memory/3536-150-0x00000000031A0000-0x00000000031A1000-memory.dmp

        memory/3536-157-0x00000000096D0000-0x0000000009703000-memory.dmp

        memory/3536-164-0x00000000096B0000-0x00000000096B1000-memory.dmp

        memory/3536-169-0x0000000009810000-0x0000000009811000-memory.dmp

        memory/3536-170-0x00000000099F0000-0x00000000099F1000-memory.dmp

        memory/3536-207-0x000000007EFE0000-0x000000007EFE1000-memory.dmp

        memory/3536-208-0x0000000004CF3000-0x0000000004CF4000-memory.dmp