Analysis

  • max time kernel
    189s
  • max time network
    204s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 07:41

General

  • Target

    0ceb940beb21c0cfdec33a2ad8e682cac46079d9278d5f77e845cc91c0fcca09.exe

  • Size

    100KB

  • MD5

    f524ce1c6d55b18dcd908178f0d40458

  • SHA1

    bbe54fdb21af247a701d640e6599c4b266fd5177

  • SHA256

    0ceb940beb21c0cfdec33a2ad8e682cac46079d9278d5f77e845cc91c0fcca09

  • SHA512

    4c224b1cf54404e7b2b9860aa8a8648242c0aa90da36a05c2b4e638ee4f74703670de4a7cc69aa8808a063ece313dbc5e9eb1b52397bc54b55249d9b6cf3d4db

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 52 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\0ceb940beb21c0cfdec33a2ad8e682cac46079d9278d5f77e845cc91c0fcca09.exe
    "C:\Users\Admin\AppData\Local\Temp\0ceb940beb21c0cfdec33a2ad8e682cac46079d9278d5f77e845cc91c0fcca09.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2516
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2996
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0ceb940beb21c0cfdec33a2ad8e682cac46079d9278d5f77e845cc91c0fcca09.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3640
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1916
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1180
  • 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:2544
  • 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:3416

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    0a3db21fd47510190a3d2c38074ee978

    SHA1

    77e77fa690a96be229370805ad22274b8252eef9

    SHA256

    7e0c7c4378586778f21f1ff19f137bbda995bef35d43e18125d320d6e65b4193

    SHA512

    dc1bd50fbd5515a8bb9791cd9415c39761077e26f2c0699ebff238c0a72a23c403259681c91fe0370511f76bda8aa2e82b419b4f6483e51939ffb08ed22241e8

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

    MD5

    0a3db21fd47510190a3d2c38074ee978

    SHA1

    77e77fa690a96be229370805ad22274b8252eef9

    SHA256

    7e0c7c4378586778f21f1ff19f137bbda995bef35d43e18125d320d6e65b4193

    SHA512

    dc1bd50fbd5515a8bb9791cd9415c39761077e26f2c0699ebff238c0a72a23c403259681c91fe0370511f76bda8aa2e82b419b4f6483e51939ffb08ed22241e8