Analysis

  • max time kernel
    190s
  • max time network
    201s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 06:27

General

  • Target

    0ff0acb4fbca1d2d25cd305740434840470f0591f5dac13cf4e5d7008bd5526f.exe

  • Size

    79KB

  • MD5

    6cdc9fd181e32103ccb4e81278642d68

  • SHA1

    1bd87c32868d9583db80ee6eff4e6790ce85fa37

  • SHA256

    0ff0acb4fbca1d2d25cd305740434840470f0591f5dac13cf4e5d7008bd5526f

  • SHA512

    179cabef0009d357f9ce44afa10aab462633b9220d19c023e55c541fa5e1039144901f5ce618168bdf9278a8c735abfc1d35d6eed81f932c820e2e3b8bca8122

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 4 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\0ff0acb4fbca1d2d25cd305740434840470f0591f5dac13cf4e5d7008bd5526f.exe
    "C:\Users\Admin\AppData\Local\Temp\0ff0acb4fbca1d2d25cd305740434840470f0591f5dac13cf4e5d7008bd5526f.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:976
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3456
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0ff0acb4fbca1d2d25cd305740434840470f0591f5dac13cf4e5d7008bd5526f.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2108
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2480
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3412
  • 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:1968
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3168
  • 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:3352

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    79527336ce4abd3a2ce7c58b0d2e6a1e

    SHA1

    dac9bdf9890bff40fe51b229c58967556089e326

    SHA256

    f65d217d081db971e66e04a10c65b0983ba198a0aafaf53156997faca144b766

    SHA512

    cbde95090547efce4ff64fd8c6564e3ba9a7adac5582cc86293b4e997903e4f91e7552987d7bdca49cbaf6c037ad747e2ccfcbf378f0fcb9fc8842ac44197d78

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

    MD5

    79527336ce4abd3a2ce7c58b0d2e6a1e

    SHA1

    dac9bdf9890bff40fe51b229c58967556089e326

    SHA256

    f65d217d081db971e66e04a10c65b0983ba198a0aafaf53156997faca144b766

    SHA512

    cbde95090547efce4ff64fd8c6564e3ba9a7adac5582cc86293b4e997903e4f91e7552987d7bdca49cbaf6c037ad747e2ccfcbf378f0fcb9fc8842ac44197d78