Analysis

  • max time kernel
    142s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/08/2023, 08:07

General

  • Target
    3587c83089c747e1501fc3813d6ee84747d37904c378ba139573180fe8946037.exe
  • Size 5.5MB
  • Sample230807-jz5l6aff21
  • SHA256 3587c83089c747e1501fc3813d6ee84747d37904c378ba139573180fe8946037
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • sakula

C2
  • www.polarroute.com

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula payload 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3587c83089c747e1501fc3813d6ee84747d37904c378ba139573180fe8946037.exe
    "C:\Users\Admin\AppData\Local\Temp\3587c83089c747e1501fc3813d6ee84747d37904c378ba139573180fe8946037.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1528
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1488
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1488 -s 228
        3⤵
        • Program crash
        PID:4796
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\3587c83089c747e1501fc3813d6ee84747d37904c378ba139573180fe8946037.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3972
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:4656
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1488 -ip 1488
    1⤵
      PID:4972

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          MediaCenter.exe

          • Path C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
          • Size 5.5MB
          • SHA256 36f5d928b02e7a427ae49f1f87cf6cf0c51d4828090d3371cb84bb9c3d31893f
          • MD5 SHA1 SHA512 SSDEEP

          MediaCenter.exe

          • Path C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
          • Size 5.5MB
          • SHA256 36f5d928b02e7a427ae49f1f87cf6cf0c51d4828090d3371cb84bb9c3d31893f
          • MD5 SHA1 SHA512 SSDEEP

          memory/1488-138-0x0000000000400000-0x00000000009B5000-memory.dmp

          memory/1488-139-0x0000000000400000-0x00000000009B5000-memory.dmp

          memory/1528-133-0x0000000000400000-0x00000000009B5000-memory.dmp

          memory/1528-140-0x0000000000400000-0x00000000009B5000-memory.dmp