Analysis

  • max time kernel
    168s
  • max time network
    177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 05:49

General

  • Target

    1192e52749cba91fa164fd1adafb5f112e089c08483dd4c4b16a70adfb691555.exe

  • Size

    192KB

  • MD5

    3ce4e9b3c39a37c72f7321f4b89e9c38

  • SHA1

    312e868cfd2926635a8a4c2dc166ee38c420567c

  • SHA256

    1192e52749cba91fa164fd1adafb5f112e089c08483dd4c4b16a70adfb691555

  • SHA512

    3abb4acfb5ec2888ed928082cc428ca151e1cd3b67903f44a5e25dab032bfa021b449b3f7852912fc9f33a253bac452430fdc9620006c29b65f33367598b07ff

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 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\1192e52749cba91fa164fd1adafb5f112e089c08483dd4c4b16a70adfb691555.exe
    "C:\Users\Admin\AppData\Local\Temp\1192e52749cba91fa164fd1adafb5f112e089c08483dd4c4b16a70adfb691555.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2688
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3044
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1192e52749cba91fa164fd1adafb5f112e089c08483dd4c4b16a70adfb691555.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1840
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1596
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1884
  • 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:1552
  • 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:3336

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    6034b8aff6d13580a6ab822107abdd04

    SHA1

    6f4d9319fadcac4815f769e4ffc50cff8542e540

    SHA256

    8313cf678c0f3dc7ef18e4ca9e56654ddb2cb5c71a861ddefd1c17b6f409261e

    SHA512

    d8a9d0a3f3520cac4ce36bf4481a39be7e66b19ea23d70ceaa20f4b5ffaaf9842341bce99118c05aab990613cc65831cec821af0ed2f07c148c55818075f5622

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

    MD5

    6034b8aff6d13580a6ab822107abdd04

    SHA1

    6f4d9319fadcac4815f769e4ffc50cff8542e540

    SHA256

    8313cf678c0f3dc7ef18e4ca9e56654ddb2cb5c71a861ddefd1c17b6f409261e

    SHA512

    d8a9d0a3f3520cac4ce36bf4481a39be7e66b19ea23d70ceaa20f4b5ffaaf9842341bce99118c05aab990613cc65831cec821af0ed2f07c148c55818075f5622