Analysis

  • max time kernel
    165s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 07:54

General

  • Target

    0c4ca495b0ce6af6fbfb88cd893ed1b84a42567b977bedde85946472df951977.exe

  • Size

    99KB

  • MD5

    6e020077b34a76f472b3ba3f77c1209a

  • SHA1

    02e4d17447d6ad2999958ebe99164b16d2317606

  • SHA256

    0c4ca495b0ce6af6fbfb88cd893ed1b84a42567b977bedde85946472df951977

  • SHA512

    e52167dc12f8d3cb040741c2472e74a6f1da79a0ad55fcbe2ebba8ff4b42e5d5bc622bcd0554b37057b9451e179acc6b4e1b184760b126e97e88b66416792b0f

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 53 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0c4ca495b0ce6af6fbfb88cd893ed1b84a42567b977bedde85946472df951977.exe
    "C:\Users\Admin\AppData\Local\Temp\0c4ca495b0ce6af6fbfb88cd893ed1b84a42567b977bedde85946472df951977.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3724
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:840
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0c4ca495b0ce6af6fbfb88cd893ed1b84a42567b977bedde85946472df951977.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2280
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1552
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3768
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:3420
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:316

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

    MD5

    f33d56076edfc6d8208452029babd03e

    SHA1

    bb93fb8d29eeef0adddbf20cad933d0709d3a880

    SHA256

    6a06e08b4aaa17470581ce4e4858b67067257f44bdc2a18f0a620215bcae67c8

    SHA512

    2129db8a83e6e465a4f5462191d05cd4cefa445e7ea916695bb2b5826c75d731efadd88d4fc445807510e791d9ef7b01222514a72a9058477c610aebe5f95f60

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

    MD5

    f33d56076edfc6d8208452029babd03e

    SHA1

    bb93fb8d29eeef0adddbf20cad933d0709d3a880

    SHA256

    6a06e08b4aaa17470581ce4e4858b67067257f44bdc2a18f0a620215bcae67c8

    SHA512

    2129db8a83e6e465a4f5462191d05cd4cefa445e7ea916695bb2b5826c75d731efadd88d4fc445807510e791d9ef7b01222514a72a9058477c610aebe5f95f60