Analysis

  • max time kernel
    152s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/10/2023, 15:08

General

  • Target
    NEAS.233a45accc67e095496c140b1c23a880_JC.exe
  • Size 42KB
  • Sample231014-shv6tsfg21
  • SHA256 eb0afceba06cb531533d5eb044761fb2fdfa6b24d13cc0086a5fa19393216d17
  • 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 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 9 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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).

  • Modifies system certificate store 2 TTPs 5 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\NEAS.233a45accc67e095496c140b1c23a880_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.233a45accc67e095496c140b1c23a880_JC.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1684
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2328
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\NEAS.233a45accc67e095496c140b1c23a880_JC.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:504
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2748

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        MediaCenter.exe

        • Path C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
        • Size 42KB
        • SHA256 eb41fd3f7a84581c7954e5c5bfc1b0b179209d57b96cf410184f6c17ee9109e5
        • MD5 SHA1 SHA512 SSDEEP

        MediaCenter.exe

        • Path C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
        • Size 42KB
        • SHA256 eb41fd3f7a84581c7954e5c5bfc1b0b179209d57b96cf410184f6c17ee9109e5
        • MD5 SHA1 SHA512 SSDEEP

        memory/1684-0-0x0000000000400000-0x0000000000424000-memory.dmp

        memory/1684-1-0x0000000000400000-0x0000000000424000-memory.dmp

        memory/1684-7-0x0000000000400000-0x0000000000424000-memory.dmp

        memory/1684-17-0x0000000000400000-0x0000000000424000-memory.dmp

        memory/2328-5-0x0000000000400000-0x0000000000424000-memory.dmp

        memory/2328-8-0x0000000000400000-0x0000000000424000-memory.dmp

        memory/2328-21-0x0000000000400000-0x0000000000424000-memory.dmp