Analysis

  • max time kernel
    167s
  • max time network
    178s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 03:37

General

  • Target

    172b4364d2cd24a356bb2c32659e0f5c2b06c3f82917f6c55746d76e08b68e74.exe

  • Size

    101KB

  • MD5

    491209bf4babcd8217a1f3f63b62f413

  • SHA1

    58e2ca4d17101170fc816f79b40f8b8795e37996

  • SHA256

    172b4364d2cd24a356bb2c32659e0f5c2b06c3f82917f6c55746d76e08b68e74

  • SHA512

    14a6e377256f9c1ed95c4a45a07a28d4c3404dfae2217822d04c1a046c6984759ef452f1e0e331c25f237e4dd18fd0e63aa7af5253b5511c7c37c1a0a0b34f22

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 51 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\172b4364d2cd24a356bb2c32659e0f5c2b06c3f82917f6c55746d76e08b68e74.exe
    "C:\Users\Admin\AppData\Local\Temp\172b4364d2cd24a356bb2c32659e0f5c2b06c3f82917f6c55746d76e08b68e74.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2564
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3884
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\172b4364d2cd24a356bb2c32659e0f5c2b06c3f82917f6c55746d76e08b68e74.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2812
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1724
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1364
  • 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:2680
  • 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:3768

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    ad39d15ca5fb0ecf5d5ff6e6b48ded7b

    SHA1

    4edbc5fee70348ca346c4dc7372918e8f4e9549e

    SHA256

    932df7972cc2a0569a3bea63509b206f946fe49a2d62ff39d0d0b1e1b659c725

    SHA512

    103b96e571ffb3022876f43bae1366f3ab408dba756ca1b4f402b6e984bfb040495fe6748208f7bb876c2ae9e19fccdfc62e43f75ced7e2d9b39ea09120b2eaf

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

    MD5

    ad39d15ca5fb0ecf5d5ff6e6b48ded7b

    SHA1

    4edbc5fee70348ca346c4dc7372918e8f4e9549e

    SHA256

    932df7972cc2a0569a3bea63509b206f946fe49a2d62ff39d0d0b1e1b659c725

    SHA512

    103b96e571ffb3022876f43bae1366f3ab408dba756ca1b4f402b6e984bfb040495fe6748208f7bb876c2ae9e19fccdfc62e43f75ced7e2d9b39ea09120b2eaf