Analysis

  • max time kernel
    147s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 03:21

General

  • Target

    17cbbd2309db9bd675f65a6b310fca254380ca8871e3ac89397f3949a366fcef.exe

  • Size

    92KB

  • MD5

    971c47a28d02eea1633e3f78c9fe16fe

  • SHA1

    9f69e39d03cfccb9ffb295a271317346aaf11185

  • SHA256

    17cbbd2309db9bd675f65a6b310fca254380ca8871e3ac89397f3949a366fcef

  • SHA512

    4321ba49a0758764214bca6192ea2bfeb243bcea9b6194743203f5c928b2fcc07334c269d6ecd873fdb8343bf25e0cfc303e549b3ac99327c8cec795883703a3

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\17cbbd2309db9bd675f65a6b310fca254380ca8871e3ac89397f3949a366fcef.exe
    "C:\Users\Admin\AppData\Local\Temp\17cbbd2309db9bd675f65a6b310fca254380ca8871e3ac89397f3949a366fcef.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3736
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3352
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\17cbbd2309db9bd675f65a6b310fca254380ca8871e3ac89397f3949a366fcef.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3672
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2860
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3484
  • 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:2184
  • 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:2308

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    f076812c1e059152ba5cf9e1a8dc4544

    SHA1

    fccf36636a0daaa4a8b5aedc8b37c0032cfae6cb

    SHA256

    9d97242a927eea9384634e7086ad9c997888bda93b27a5b5d173115077ab4771

    SHA512

    934a824008c488465648dbbf4bd97a84e11ecd93e06589ad17bd74fd237ebcbbc63b069b2d7120e503bf1d6654c52dbdb9e686fa4baf60aa97d2c47dba3ac9a7

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

    MD5

    f076812c1e059152ba5cf9e1a8dc4544

    SHA1

    fccf36636a0daaa4a8b5aedc8b37c0032cfae6cb

    SHA256

    9d97242a927eea9384634e7086ad9c997888bda93b27a5b5d173115077ab4771

    SHA512

    934a824008c488465648dbbf4bd97a84e11ecd93e06589ad17bd74fd237ebcbbc63b069b2d7120e503bf1d6654c52dbdb9e686fa4baf60aa97d2c47dba3ac9a7