Analysis

  • max time kernel
    159s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 04:40

General

  • Target

    14dfb7037a3a866bf846ac612f68220287fead8184ba9fd2ebe3ee35c93088cb.exe

  • Size

    150KB

  • MD5

    bf8e0d9eed53f3386969dd71a1c7d0fb

  • SHA1

    9fb2dd2724698b1f9df01ac6665e08ee4d4cdddf

  • SHA256

    14dfb7037a3a866bf846ac612f68220287fead8184ba9fd2ebe3ee35c93088cb

  • SHA512

    18a435af90018c5b4d22e66814903d7679bda908e5696fd62c4a8a1ea14754912c8dde70a6e69da5c1d9503190cef01d1de32752479a2e04fc8121be2a0545fa

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\14dfb7037a3a866bf846ac612f68220287fead8184ba9fd2ebe3ee35c93088cb.exe
    "C:\Users\Admin\AppData\Local\Temp\14dfb7037a3a866bf846ac612f68220287fead8184ba9fd2ebe3ee35c93088cb.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:644
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3636
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\14dfb7037a3a866bf846ac612f68220287fead8184ba9fd2ebe3ee35c93088cb.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3536
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1216
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:536
  • 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:1268
  • 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:3380

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    59190b65cc732b59db94eae0dcee37d1

    SHA1

    2d0434138794077a5cbe30563d206b651bda1fa6

    SHA256

    cf6246184962f1b177f4373545da65e78fea6715c9d10ff209e68d2da1201a1e

    SHA512

    007210f5d0475b01206eb4685e9302ad1f92e15eb9ce7049cbe2c3490d48fefedb7dbe039cdb4c30d75ba5507a9e4491ff9889fe45f7321a8e5cfee8b4e85fc1

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

    MD5

    59190b65cc732b59db94eae0dcee37d1

    SHA1

    2d0434138794077a5cbe30563d206b651bda1fa6

    SHA256

    cf6246184962f1b177f4373545da65e78fea6715c9d10ff209e68d2da1201a1e

    SHA512

    007210f5d0475b01206eb4685e9302ad1f92e15eb9ce7049cbe2c3490d48fefedb7dbe039cdb4c30d75ba5507a9e4491ff9889fe45f7321a8e5cfee8b4e85fc1