Analysis

  • max time kernel
    152s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 08:10

General

  • Target

    0b8d680ea3b2c0ab38d22220fff42fe58b8a6db3a64176ec10626281dcafa143.exe

  • Size

    92KB

  • MD5

    74f04b0cf135a77879483d2da60a9e66

  • SHA1

    f3fde8eb1a7ed55770aca98d46d3a167ff488118

  • SHA256

    0b8d680ea3b2c0ab38d22220fff42fe58b8a6db3a64176ec10626281dcafa143

  • SHA512

    87e2bfbfe295e8f51e5deb440074891b7385887db2d3e03f2e320aae0a63c614a18ced585f7ed127c60de47afb0cafb3d4fdbc3d8024072e8a3acdffd0c80b53

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\0b8d680ea3b2c0ab38d22220fff42fe58b8a6db3a64176ec10626281dcafa143.exe
    "C:\Users\Admin\AppData\Local\Temp\0b8d680ea3b2c0ab38d22220fff42fe58b8a6db3a64176ec10626281dcafa143.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2160
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1056
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0b8d680ea3b2c0ab38d22220fff42fe58b8a6db3a64176ec10626281dcafa143.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2096
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1148
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:312
  • 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:1784
  • 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:1780

Network

MITRE ATT&CK Enterprise v6

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Downloads

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

    MD5

    2077327704ebfbd6d906e17c3d4ef89b

    SHA1

    418082c238898efb31d11d2de0c64da49899b89a

    SHA256

    e52c002d6ada3b54f2e2c5316f3316db7f0febd8effd48fd506bb6592be427ba

    SHA512

    a18c96fdde8e9e9aab525cd2feb6571edf3143e71a79214b9e98a3f95040a88606451784d915101c14a6fb1d29294af89b292fcd9d47113a08dcf8f596388f5e

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

    MD5

    2077327704ebfbd6d906e17c3d4ef89b

    SHA1

    418082c238898efb31d11d2de0c64da49899b89a

    SHA256

    e52c002d6ada3b54f2e2c5316f3316db7f0febd8effd48fd506bb6592be427ba

    SHA512

    a18c96fdde8e9e9aab525cd2feb6571edf3143e71a79214b9e98a3f95040a88606451784d915101c14a6fb1d29294af89b292fcd9d47113a08dcf8f596388f5e