Analysis

  • max time kernel
    161s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 03:41

General

  • Target

    16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe

  • Size

    89KB

  • MD5

    b5452054b6b5f26621ea99e10e533195

  • SHA1

    bf782782e633d2a4ca8c4ad928f0961e52bd677b

  • SHA256

    16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a

  • SHA512

    773697d09538c5e40f8973806ceaab30aed4e06370c6a6245887bb8da7168abb6d2975eb3227dcbf4771b3a10884da12062227a484ab653c29bbc0e88c152ed9

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\16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe
    "C:\Users\Admin\AppData\Local\Temp\16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3464
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2160
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3900
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2320
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2612
  • 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:3552
  • 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:3536

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    MD5

    e8b0043433c3707f6377df6da6a01af1

    SHA1

    d90ae1c7aadf017a8f13d6b0d5af1874205b56ec

    SHA256

    2085a6a52584dd0dd6f6ad13831e80f4c4889f3cb572ac6ec2f5609fca56a4de

    SHA512

    700263b1ef8dc3cb30d2a599251d20de478ee0fbedb13acb78278b56c0b302335fff88be52d8dc169f1fc0ced20c9b2d97f7f2f5dff39236e77e83abdbcc7a6f

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

    MD5

    e8b0043433c3707f6377df6da6a01af1

    SHA1

    d90ae1c7aadf017a8f13d6b0d5af1874205b56ec

    SHA256

    2085a6a52584dd0dd6f6ad13831e80f4c4889f3cb572ac6ec2f5609fca56a4de

    SHA512

    700263b1ef8dc3cb30d2a599251d20de478ee0fbedb13acb78278b56c0b302335fff88be52d8dc169f1fc0ced20c9b2d97f7f2f5dff39236e77e83abdbcc7a6f

  • memory/2160-133-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3464-132-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB