Analysis

  • max time kernel
    147s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-03-2024 21:33

General

  • Target

    PO.exe

  • Size

    640KB

  • MD5

    77d0521505f69632ad6740ff52a29790

  • SHA1

    a771c88ec2e7d267474ced87d047673de3d86df9

  • SHA256

    b36fafecaa9f3252bc38d71ef8d16cff142337c8f5f8e98c414a057277c7cbe1

  • SHA512

    125adc6617aa5fbdab97f5ff84ad6308dcb9bb838f41df410a39f304bc448c52da03a48c84c217272a7fac7593a4a2bbfa6de1f0edaa9527924e1ee7f549f432

  • SSDEEP

    12288:6spOCWdZKUZ+SPwGVG5uzVOfxYxcUR55Oue3UUBTpV501/tQ:BAVdZrZ+SPw5szyWCUHYpV5C/O

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    sg2plcpnl0023.prod.sin2.secureserver.net
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    User@40378

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO.exe
    "C:\Users\Admin\AppData\Local\Temp\PO.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1644
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:3960
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
        • Drops file in Drivers directory
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1588

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Defense Evasion

    Modify Registry

    1
    T1112

    Collection

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1588-11-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/1588-24-0x0000000004FF0000-0x0000000005000000-memory.dmp
      Filesize

      64KB

    • memory/1588-23-0x0000000004FF0000-0x0000000005000000-memory.dmp
      Filesize

      64KB

    • memory/1588-22-0x0000000006290000-0x00000000062E0000-memory.dmp
      Filesize

      320KB

    • memory/1588-20-0x0000000004FF0000-0x0000000005000000-memory.dmp
      Filesize

      64KB

    • memory/1588-19-0x0000000074A20000-0x00000000751D0000-memory.dmp
      Filesize

      7.7MB

    • memory/1588-17-0x0000000005DD0000-0x0000000005E36000-memory.dmp
      Filesize

      408KB

    • memory/1588-16-0x0000000005340000-0x0000000005358000-memory.dmp
      Filesize

      96KB

    • memory/1588-15-0x0000000004FF0000-0x0000000005000000-memory.dmp
      Filesize

      64KB

    • memory/1588-13-0x0000000074A20000-0x00000000751D0000-memory.dmp
      Filesize

      7.7MB

    • memory/1644-5-0x0000000005060000-0x000000000506A000-memory.dmp
      Filesize

      40KB

    • memory/1644-10-0x00000000078F0000-0x0000000007972000-memory.dmp
      Filesize

      520KB

    • memory/1644-9-0x00000000077A0000-0x000000000783C000-memory.dmp
      Filesize

      624KB

    • memory/1644-14-0x0000000074A20000-0x00000000751D0000-memory.dmp
      Filesize

      7.7MB

    • memory/1644-8-0x0000000004E50000-0x0000000004E60000-memory.dmp
      Filesize

      64KB

    • memory/1644-7-0x0000000074A20000-0x00000000751D0000-memory.dmp
      Filesize

      7.7MB

    • memory/1644-6-0x0000000005370000-0x0000000005388000-memory.dmp
      Filesize

      96KB

    • memory/1644-1-0x0000000074A20000-0x00000000751D0000-memory.dmp
      Filesize

      7.7MB

    • memory/1644-4-0x0000000004E50000-0x0000000004E60000-memory.dmp
      Filesize

      64KB

    • memory/1644-3-0x0000000004EA0000-0x0000000004F32000-memory.dmp
      Filesize

      584KB

    • memory/1644-2-0x00000000053B0000-0x0000000005954000-memory.dmp
      Filesize

      5.6MB

    • memory/1644-0-0x0000000000410000-0x00000000004B6000-memory.dmp
      Filesize

      664KB