Analysis

  • max time kernel
    161s
  • max time network
    174s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:37

General

  • Target

    097b9d360ee4f1d49f8cb37d3180941d581787bad3eaf7cfc19ed9debec782ea.exe

  • Size

    100KB

  • MD5

    31a7ba632eaf4a1a21770414682ec097

  • SHA1

    816a99bb2bfb66393ff06db510e149e572f3964a

  • SHA256

    097b9d360ee4f1d49f8cb37d3180941d581787bad3eaf7cfc19ed9debec782ea

  • SHA512

    60c7a1311d858afec7ae9f6d17d7d414c29e09762b82fdbf2aed4f13de988e00815b4075107fdef6dbcd60b9d846f59afd9baaa482aefb7a11a9931fcfdfc4f3

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\097b9d360ee4f1d49f8cb37d3180941d581787bad3eaf7cfc19ed9debec782ea.exe
    "C:\Users\Admin\AppData\Local\Temp\097b9d360ee4f1d49f8cb37d3180941d581787bad3eaf7cfc19ed9debec782ea.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1136
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2116
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\097b9d360ee4f1d49f8cb37d3180941d581787bad3eaf7cfc19ed9debec782ea.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3800
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1568
  • 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:3928
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 0
    1⤵
    • Checks processor information in registry
    PID:628
  • 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:3988

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    db9bf2d98016dce520daff0d782e2239

    SHA1

    08186bccdf5eb9a488929f56f2375bb647a8e00d

    SHA256

    d9404ae9a5777855e50f9bd3d870bb96fe764dab16ef9e06c4cde7183fecc142

    SHA512

    105c54dbcfe4db2726d818b85663e6aeb76a1a5872cd12b930c600ebc6e4a0d36b40303f679847313a8833e5d16671454002cc161f0062cf2a56c7900545b86a

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

    db9bf2d98016dce520daff0d782e2239

    SHA1

    08186bccdf5eb9a488929f56f2375bb647a8e00d

    SHA256

    d9404ae9a5777855e50f9bd3d870bb96fe764dab16ef9e06c4cde7183fecc142

    SHA512

    105c54dbcfe4db2726d818b85663e6aeb76a1a5872cd12b930c600ebc6e4a0d36b40303f679847313a8833e5d16671454002cc161f0062cf2a56c7900545b86a