Analysis

  • max time kernel
    153s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:25

General

  • Target

    04706060174adf59e7a1f2afd19a750dc72c0d55300cdd0c01e79daaec7bec83.exe

  • Size

    80KB

  • MD5

    4cce3ea5ef6be33d98354a35840d1717

  • SHA1

    197c19f487772b581d686742edf752d1e5c28dd6

  • SHA256

    04706060174adf59e7a1f2afd19a750dc72c0d55300cdd0c01e79daaec7bec83

  • SHA512

    e66e5928bd7ad9ee4cc331c2af4bfc0afd6a239e700612010701b7c17b55fc32e4c528e6c9e1c86f04a471d2884d644758a0e306e1afd024154342fc38641589

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\04706060174adf59e7a1f2afd19a750dc72c0d55300cdd0c01e79daaec7bec83.exe
    "C:\Users\Admin\AppData\Local\Temp\04706060174adf59e7a1f2afd19a750dc72c0d55300cdd0c01e79daaec7bec83.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1016
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:724
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\04706060174adf59e7a1f2afd19a750dc72c0d55300cdd0c01e79daaec7bec83.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:876
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2600
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2864
  • 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:2756
  • 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:2384

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    a0e3ba5b226b8b3ddb927eb61cdf404f

    SHA1

    5d479f6ca2407a280200b518a3950041852a43e6

    SHA256

    715c94e901bcca53e6de9413c0bd5042391c747a47a2cfcc5090dec2bc4b4464

    SHA512

    c3cb69a0d53af76e9c7dd3aa8de1ca8afb4b55084e313f962602d79c4a8357befd53a8807ee5ff4c09903aaf5df91015e6d60293968e9f940ee46787e9d40392

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

    a0e3ba5b226b8b3ddb927eb61cdf404f

    SHA1

    5d479f6ca2407a280200b518a3950041852a43e6

    SHA256

    715c94e901bcca53e6de9413c0bd5042391c747a47a2cfcc5090dec2bc4b4464

    SHA512

    c3cb69a0d53af76e9c7dd3aa8de1ca8afb4b55084e313f962602d79c4a8357befd53a8807ee5ff4c09903aaf5df91015e6d60293968e9f940ee46787e9d40392