Analysis

  • max time kernel
    111s
  • max time network
    112s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/07/2024, 18:13

General

  • Target
    e9443561bfdc5d31b810f1b42f2be930N.exe
  • Size 64KB
  • Sample240725-wt4twswcll
  • SHA256 2dc6da7d229793ed6ae880c4bce3cd93a5e790e6646b8d9af062b45325b6358f
  • 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
  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • 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\e9443561bfdc5d31b810f1b42f2be930N.exe
    "C:\Users\Admin\AppData\Local\Temp\e9443561bfdc5d31b810f1b42f2be930N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4712
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4612
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\e9443561bfdc5d31b810f1b42f2be930N.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:4912
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:516

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 64KB
        • SHA256 025ed78c7178ba553e51c02a18ca94cab39a1f6d427929622703a5fabcfc325c
        • MD5 SHA1 SHA512 SSDEEP

        memory/4612-6-0x0000000000400000-0x0000000000423000-memory.dmp

        memory/4612-16-0x0000000000400000-0x0000000000423000-memory.dmp

        memory/4712-0-0x0000000000400000-0x0000000000423000-memory.dmp

        memory/4712-5-0x0000000000400000-0x0000000000423000-memory.dmp

        memory/4712-9-0x0000000000400000-0x0000000000423000-memory.dmp