Analysis

  • max time kernel
    169s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 03:32

General

  • Target

    1767c64dfeee3df386f20ef7297b42719a1dd34e1c7411684d6d4e762f3b2c7e.exe

  • Size

    168KB

  • MD5

    1277754a9e270620875e4962c2280312

  • SHA1

    1a7bdc81edb913e6773a5350b6a3e9dce45ee96e

  • SHA256

    1767c64dfeee3df386f20ef7297b42719a1dd34e1c7411684d6d4e762f3b2c7e

  • SHA512

    1fdb883d59de4fe819b95419c14cacb4c7ce36ea935139f0dfda45067a1c86faa0e0b2befbf758b8f50d06f2e535e384b34e9d97b7d6908f2b27bcf1b1bc3d33

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 4 IoCs
  • 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\1767c64dfeee3df386f20ef7297b42719a1dd34e1c7411684d6d4e762f3b2c7e.exe
    "C:\Users\Admin\AppData\Local\Temp\1767c64dfeee3df386f20ef7297b42719a1dd34e1c7411684d6d4e762f3b2c7e.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3024
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1044
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1767c64dfeee3df386f20ef7297b42719a1dd34e1c7411684d6d4e762f3b2c7e.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2800
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2108
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1056
  • 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:4080
  • 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:3256

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    6a50b9256e7852fe3ae785e636346f3b

    SHA1

    3a0a3a70b0e3864031a7a6f9ab2300946146b503

    SHA256

    ed0a33450d426bc1398e50210c1a2058a6b87e3f57ac1f321b25e8d204a4f201

    SHA512

    5ccdef5354a90027562483c8cff0716c03d90a28abf52bed2b9a6436c9309e6479d5df4e17240e6df4c09ecac17a97fc11631f69a4d47dcb315cfac690a8c511

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

    MD5

    6a50b9256e7852fe3ae785e636346f3b

    SHA1

    3a0a3a70b0e3864031a7a6f9ab2300946146b503

    SHA256

    ed0a33450d426bc1398e50210c1a2058a6b87e3f57ac1f321b25e8d204a4f201

    SHA512

    5ccdef5354a90027562483c8cff0716c03d90a28abf52bed2b9a6436c9309e6479d5df4e17240e6df4c09ecac17a97fc11631f69a4d47dcb315cfac690a8c511

  • memory/1044-133-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3024-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB