Analysis

  • max time kernel
    166s
  • max time network
    179s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 05:50

General

  • Target

    118747584f3180dca6d39c8d5effc69d7359828fd6d667477163d5af71363173.exe

  • Size

    36KB

  • MD5

    79f0a40b1d942bef765508f16947b0ac

  • SHA1

    42d7bf61659f69ab0810685d6d439af56ba890f4

  • SHA256

    118747584f3180dca6d39c8d5effc69d7359828fd6d667477163d5af71363173

  • SHA512

    0e22912928b71114e1c885c72448a2ed6093ea3e57eb213b813196a80de8c74cb012fd270efb5d34693ab077434bea1911d762d5d402337351a533263d15c040

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • 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\118747584f3180dca6d39c8d5effc69d7359828fd6d667477163d5af71363173.exe
    "C:\Users\Admin\AppData\Local\Temp\118747584f3180dca6d39c8d5effc69d7359828fd6d667477163d5af71363173.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3232
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2192
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\118747584f3180dca6d39c8d5effc69d7359828fd6d667477163d5af71363173.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1784
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1168
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3772
  • 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:3456
  • 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:3952

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    498d3ddc1420feef7dc4710a3d42260b

    SHA1

    ad83d9cf4ffed6b3a39cc0ce8cd0a414ddd1ed00

    SHA256

    60af8726ef64de8a3a0f0036cf7547cb5ba39cdf5e3bdfa1104641822a758ac3

    SHA512

    e47f9c0375dc90f9206b360234ddd207136c1e7742dd1468b3d193581363556c618f9c0297ce0234e0f8742a5446ec6df23dc3ff1d0bb6fdf6c30ed9a0b1fd0d

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

    MD5

    498d3ddc1420feef7dc4710a3d42260b

    SHA1

    ad83d9cf4ffed6b3a39cc0ce8cd0a414ddd1ed00

    SHA256

    60af8726ef64de8a3a0f0036cf7547cb5ba39cdf5e3bdfa1104641822a758ac3

    SHA512

    e47f9c0375dc90f9206b360234ddd207136c1e7742dd1468b3d193581363556c618f9c0297ce0234e0f8742a5446ec6df23dc3ff1d0bb6fdf6c30ed9a0b1fd0d