Analysis

  • max time kernel
    165s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 06:30

General

  • Target

    0fcd130df086cd9bdf6e2e74937ccb75915e93b873f934b895b38b714ba2230b.exe

  • Size

    150KB

  • MD5

    c74a9948687d6f8c74d235c1c00b79b6

  • SHA1

    fbcbc71ae8e025f20b4e9cf4d1f58e005991d702

  • SHA256

    0fcd130df086cd9bdf6e2e74937ccb75915e93b873f934b895b38b714ba2230b

  • SHA512

    c5fa4f35c0271d32acf0c46f2c6352878249f7acb53bc5744228dbe81cdf954e78c8f22ad2638fc057613860e7e9a0d46d8b836b41a0838b40fe68030a7c44bb

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 51 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\0fcd130df086cd9bdf6e2e74937ccb75915e93b873f934b895b38b714ba2230b.exe
    "C:\Users\Admin\AppData\Local\Temp\0fcd130df086cd9bdf6e2e74937ccb75915e93b873f934b895b38b714ba2230b.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1944
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2648
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0fcd130df086cd9bdf6e2e74937ccb75915e93b873f934b895b38b714ba2230b.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:396
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:740
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 0
    1⤵
    • Checks processor information in registry
    PID:1428
  • 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:1440
  • 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:3096

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    4d9a7fb5f0a2dcd29c04a34ab37095a1

    SHA1

    9f9a2446febb2f932f88ea8a82d880840949f434

    SHA256

    1dd9a6b007929be8518dcecac97aaf85c2487f84cc6ef167381b6b33fea9665f

    SHA512

    60e7f12d04d3079db8a2d05400b76661d059b145527b23803953dce14050a4d5d0668383a4cd768c6765b7fee8df0f7467c0361ce8889c0d0f90c96319e42a83

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

    MD5

    4d9a7fb5f0a2dcd29c04a34ab37095a1

    SHA1

    9f9a2446febb2f932f88ea8a82d880840949f434

    SHA256

    1dd9a6b007929be8518dcecac97aaf85c2487f84cc6ef167381b6b33fea9665f

    SHA512

    60e7f12d04d3079db8a2d05400b76661d059b145527b23803953dce14050a4d5d0668383a4cd768c6765b7fee8df0f7467c0361ce8889c0d0f90c96319e42a83