Analysis

  • max time kernel
    167s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 05:49

General

  • Target

    11a097c5d33d6aa3fbd8cce2f495d1909a2bb15b8dc1a152cf20db6ae6a656ea.exe

  • Size

    152KB

  • MD5

    66e166f3aff6fcf50603fd889bcc4c1b

  • SHA1

    3aacb55121a3b7dff508b5148b04eceed1368a34

  • SHA256

    11a097c5d33d6aa3fbd8cce2f495d1909a2bb15b8dc1a152cf20db6ae6a656ea

  • SHA512

    917f520a104b57f4d230724c845e22e69fb35e7e3f3312ea0ec516361e9007f65d314a318c1e46593a532c289225f522d2e5b445e1cda2f507cc27944f996d4a

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 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 50 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\11a097c5d33d6aa3fbd8cce2f495d1909a2bb15b8dc1a152cf20db6ae6a656ea.exe
    "C:\Users\Admin\AppData\Local\Temp\11a097c5d33d6aa3fbd8cce2f495d1909a2bb15b8dc1a152cf20db6ae6a656ea.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3824
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3092
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\11a097c5d33d6aa3fbd8cce2f495d1909a2bb15b8dc1a152cf20db6ae6a656ea.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:548
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3868
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3424
  • 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:3952
  • 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:1192

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    MD5

    1461ee664de4b1568d3996bdb7275142

    SHA1

    48e7c7d8502d6cb62ed401bc5f26a4c6d8678834

    SHA256

    701bc74c0570b297a6f6459f2c2fa39b6ffeb32b84fe809a67ef77ffd8281fe5

    SHA512

    3925794811ac92561faba50346774100c054d2d33a47826b62cb61496d219fcad7e700864e6401c55f7faaa1cc5dd87c381363b52baee692a95e80a18e449a18

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

    MD5

    1461ee664de4b1568d3996bdb7275142

    SHA1

    48e7c7d8502d6cb62ed401bc5f26a4c6d8678834

    SHA256

    701bc74c0570b297a6f6459f2c2fa39b6ffeb32b84fe809a67ef77ffd8281fe5

    SHA512

    3925794811ac92561faba50346774100c054d2d33a47826b62cb61496d219fcad7e700864e6401c55f7faaa1cc5dd87c381363b52baee692a95e80a18e449a18