Analysis

  • max time kernel
    163s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 10:35

General

  • Target

    06c235eeb81e0006e54e98b47170704292c7a878831d1f0b43e83150eb00f3ea.exe

  • Size

    89KB

  • MD5

    86fffd0dcd1dc6e61d428a81a3796a91

  • SHA1

    a688630ae780f5383e1ba271d9a0bd0a27165d42

  • SHA256

    06c235eeb81e0006e54e98b47170704292c7a878831d1f0b43e83150eb00f3ea

  • SHA512

    aeed83e93c4606b5c7717187e16e0b26a8710cac9ac9995a8c83062e1cb0d5e15eb0faa1ffd1cb2cd772cb31e2e492363857149e5a6f2db3555b7d519e2a6a4b

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 54 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\06c235eeb81e0006e54e98b47170704292c7a878831d1f0b43e83150eb00f3ea.exe
    "C:\Users\Admin\AppData\Local\Temp\06c235eeb81e0006e54e98b47170704292c7a878831d1f0b43e83150eb00f3ea.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3596
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2976
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\06c235eeb81e0006e54e98b47170704292c7a878831d1f0b43e83150eb00f3ea.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4032
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3852
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 0
    1⤵
    • Checks processor information in registry
    PID:2664
  • 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:2472
  • 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:1836

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    7d54661b658640aec3703ef7f53c80a3

    SHA1

    b9789dc51aa7b7eb121953f681153bb86a638a4e

    SHA256

    d7d018f57386e471daea91802879e2c52d2da0df0ce130de1d8b74328f6c705a

    SHA512

    72710b5d5dfdbd69bcc808d6443a2843111820d8969777a60c8cebf53198654affe17aecb6405dc4c4313526b44ca215b78d4dcb10e4aeb17b34c15e3facc44d

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    7d54661b658640aec3703ef7f53c80a3

    SHA1

    b9789dc51aa7b7eb121953f681153bb86a638a4e

    SHA256

    d7d018f57386e471daea91802879e2c52d2da0df0ce130de1d8b74328f6c705a

    SHA512

    72710b5d5dfdbd69bcc808d6443a2843111820d8969777a60c8cebf53198654affe17aecb6405dc4c4313526b44ca215b78d4dcb10e4aeb17b34c15e3facc44d