Analysis

  • max time kernel
    154s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 03:04

General

  • Target

    18abd00be962a98dd18bc1bde5144515d464d2825ec3c8095c1208e322c14577.exe

  • Size

    92KB

  • MD5

    be32d74cc32099640aef31b75ba558db

  • SHA1

    1afbd938d2cb4f5e42a3a58790886ec45321849d

  • SHA256

    18abd00be962a98dd18bc1bde5144515d464d2825ec3c8095c1208e322c14577

  • SHA512

    f4c14bf8d726f0bd1d9d5903054f5d8445d01b9ce7fc0c8721f9e68b8142f779b18f4f0fc3c837b834eac86e9b2d5d026e19d2aee1216891a7476794fa42df6b

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 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\18abd00be962a98dd18bc1bde5144515d464d2825ec3c8095c1208e322c14577.exe
    "C:\Users\Admin\AppData\Local\Temp\18abd00be962a98dd18bc1bde5144515d464d2825ec3c8095c1208e322c14577.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3296
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3040
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\18abd00be962a98dd18bc1bde5144515d464d2825ec3c8095c1208e322c14577.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4008
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:876
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1492
  • 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:4036
  • 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:3384

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    78408d3fee798e770821c87e6635bfa0

    SHA1

    b715152c5849556716bafef8f2d67a6f83d91f46

    SHA256

    eb9a1b83c84b778591a2260db2ee2332ea411c053a84bb6ddd9203f34c519db5

    SHA512

    042d35f1afecddd6acf897f9d87e54171adea19aedcea8e668b8dce9bb4cc28bef10054b2012915c5dcb40016337f6a00e7f4967235246c7fb6e8b11221e9015

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

    MD5

    78408d3fee798e770821c87e6635bfa0

    SHA1

    b715152c5849556716bafef8f2d67a6f83d91f46

    SHA256

    eb9a1b83c84b778591a2260db2ee2332ea411c053a84bb6ddd9203f34c519db5

    SHA512

    042d35f1afecddd6acf897f9d87e54171adea19aedcea8e668b8dce9bb4cc28bef10054b2012915c5dcb40016337f6a00e7f4967235246c7fb6e8b11221e9015