Analysis

  • max time kernel
    155s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 03:44

General

  • Target

    16e5bbba7cefdd09858f46cd3a7ccaa77b752bd3ae190e12c230bbb7d2f82231.exe

  • Size

    112KB

  • MD5

    a4e759180c02a1543083d393f209e906

  • SHA1

    618e5aa1dcbda1038176320acb47697c95da7cc6

  • SHA256

    16e5bbba7cefdd09858f46cd3a7ccaa77b752bd3ae190e12c230bbb7d2f82231

  • SHA512

    ec59d6ebfcac4908bccaa42fba1d322aefc0de894f74a4cb7fda62d933915991986545c75eeb408df42d7c1b06f22f8f64622b336426e30f9056bc46c0477985

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 3 IoCs
  • suricata: ET MALWARE SUSPICIOUS UA (iexplore)

    suricata: ET MALWARE SUSPICIOUS UA (iexplore)

  • suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

    suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

  • 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 49 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\16e5bbba7cefdd09858f46cd3a7ccaa77b752bd3ae190e12c230bbb7d2f82231.exe
    "C:\Users\Admin\AppData\Local\Temp\16e5bbba7cefdd09858f46cd3a7ccaa77b752bd3ae190e12c230bbb7d2f82231.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3744
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1124
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\16e5bbba7cefdd09858f46cd3a7ccaa77b752bd3ae190e12c230bbb7d2f82231.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2996
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1940
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2088
  • 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:3164
  • 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:3028

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    0a6bd9369e72f08dc747718c9d212d2e

    SHA1

    2c307887c0b9e416526981ba5ae17b3fb36b8d7a

    SHA256

    2da530ecef01e90c6ebdbddb4a9c141ca88baf44e684726a0fff35f4f089b504

    SHA512

    ace90759ade505255b04b7af398fef2adebacb87c979eb5d3b978ce7359af34ecfeec0975d7a914f1c0912b933614cbeed4cf97761f9b709cc0af8d5b6c0009e

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

    MD5

    0a6bd9369e72f08dc747718c9d212d2e

    SHA1

    2c307887c0b9e416526981ba5ae17b3fb36b8d7a

    SHA256

    2da530ecef01e90c6ebdbddb4a9c141ca88baf44e684726a0fff35f4f089b504

    SHA512

    ace90759ade505255b04b7af398fef2adebacb87c979eb5d3b978ce7359af34ecfeec0975d7a914f1c0912b933614cbeed4cf97761f9b709cc0af8d5b6c0009e

  • memory/3744-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB