Analysis

  • max time kernel
    137s
  • max time network
    129s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    11/11/2021, 04:50

General

  • Target
    INVOICE ASIAN SHIPPINGS.exe
  • Size 597KB
  • Sample211111-ff96rafhan
  • SHA256 d3e17c82c0fc551af072e0b8db0eb7c823bd38334d558fd742158ffb7ae21da7
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.packsealsind.com

  • Port

    587

  • Password

    %Y44i3op

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INVOICE ASIAN SHIPPINGS.exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE ASIAN SHIPPINGS.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2460
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\INVOICE ASIAN SHIPPINGS.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4044
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fBtGRtOsqXLpif.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3668
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fBtGRtOsqXLpif" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4D32.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:516
    • C:\Users\Admin\AppData\Local\Temp\INVOICE ASIAN SHIPPINGS.exe
      "C:\Users\Admin\AppData\Local\Temp\INVOICE ASIAN SHIPPINGS.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:608

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/608-158-0x00000000058E0000-0x00000000058E1000-memory.dmp

        memory/608-139-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/2460-123-0x0000000004FA0000-0x0000000004FA1000-memory.dmp

        memory/2460-125-0x0000000005D60000-0x0000000005D61000-memory.dmp

        memory/2460-126-0x0000000005E00000-0x0000000005E54000-memory.dmp

        memory/2460-120-0x00000000055C0000-0x00000000055C1000-memory.dmp

        memory/2460-121-0x0000000004FF0000-0x0000000004FF1000-memory.dmp

        memory/2460-118-0x00000000005A0000-0x00000000005A1000-memory.dmp

        memory/2460-122-0x00000000050C0000-0x00000000055BE000-memory.dmp

        memory/2460-124-0x0000000005270000-0x0000000005275000-memory.dmp

        memory/3668-135-0x00000000033D0000-0x00000000033D1000-memory.dmp

        memory/3668-195-0x00000000096B0000-0x00000000096B1000-memory.dmp

        memory/3668-145-0x0000000007790000-0x0000000007791000-memory.dmp

        memory/3668-149-0x0000000008220000-0x0000000008221000-memory.dmp

        memory/3668-148-0x0000000007830000-0x0000000007831000-memory.dmp

        memory/3668-234-0x0000000004F73000-0x0000000004F74000-memory.dmp

        memory/3668-133-0x00000000033D0000-0x00000000033D1000-memory.dmp

        memory/3668-156-0x0000000004F70000-0x0000000004F71000-memory.dmp

        memory/3668-165-0x00000000033D0000-0x00000000033D1000-memory.dmp

        memory/3668-188-0x000000007F430000-0x000000007F431000-memory.dmp

        memory/3668-152-0x0000000008290000-0x0000000008291000-memory.dmp

        memory/3668-157-0x0000000004F72000-0x0000000004F73000-memory.dmp

        memory/3668-179-0x00000000096F0000-0x0000000009723000-memory.dmp

        memory/3668-159-0x0000000008060000-0x0000000008061000-memory.dmp

        memory/3668-161-0x0000000008660000-0x0000000008661000-memory.dmp

        memory/3668-163-0x0000000008900000-0x0000000008901000-memory.dmp

        memory/4044-131-0x0000000000980000-0x0000000000981000-memory.dmp

        memory/4044-166-0x0000000000980000-0x0000000000981000-memory.dmp

        memory/4044-130-0x0000000000980000-0x0000000000981000-memory.dmp

        memory/4044-155-0x0000000004342000-0x0000000004343000-memory.dmp

        memory/4044-192-0x000000007E9D0000-0x000000007E9D1000-memory.dmp

        memory/4044-154-0x0000000004340000-0x0000000004341000-memory.dmp

        memory/4044-231-0x0000000004343000-0x0000000004344000-memory.dmp

        memory/4044-132-0x00000000042F0000-0x00000000042F1000-memory.dmp

        memory/4044-134-0x0000000006DD0000-0x0000000006DD1000-memory.dmp