Analysis

  • max time kernel
    149s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • 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 6 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 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:1644
    • 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:828
    • 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:1932
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fBtGRtOsqXLpif" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC82F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:964
    • 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:308

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/308-69-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/308-78-0x0000000004C10000-0x0000000004C11000-memory.dmp

        memory/308-83-0x0000000004C11000-0x0000000004C12000-memory.dmp

        memory/308-74-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/308-71-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/308-72-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/308-70-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/308-68-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/828-82-0x00000000024B0000-0x00000000030FA000-memory.dmp

        memory/828-77-0x00000000024B0000-0x00000000030FA000-memory.dmp

        memory/828-80-0x00000000024B0000-0x00000000030FA000-memory.dmp

        memory/1644-57-0x00000000757A1000-0x00000000757A3000-memory.dmp

        memory/1644-58-0x0000000004F00000-0x0000000004F01000-memory.dmp

        memory/1644-59-0x00000000002C0000-0x00000000002C5000-memory.dmp

        memory/1644-55-0x0000000000CD0000-0x0000000000CD1000-memory.dmp

        memory/1644-60-0x0000000000960000-0x00000000009B4000-memory.dmp

        memory/1932-79-0x00000000025B1000-0x00000000025B2000-memory.dmp

        memory/1932-81-0x00000000025B2000-0x00000000025B4000-memory.dmp

        memory/1932-76-0x00000000025B0000-0x00000000025B1000-memory.dmp