Analysis

  • max time kernel
    155s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 03:19

General

  • Target

    17f3d10e465005474250219f4fd10b89bb002ddaa34cfeb960883324cecc049c.exe

  • Size

    89KB

  • MD5

    25c7b2d1dd87772363066b00046b7bc2

  • SHA1

    774dab6dd866699941ef2378b3e2fb248647655a

  • SHA256

    17f3d10e465005474250219f4fd10b89bb002ddaa34cfeb960883324cecc049c

  • SHA512

    c193512466b32ebb1c3d123553dc6b799f3e1e6d4b05205f32d3210c8a571246774a5f58285b921a7c6632ff6db57a547848028f76208071404c2d2ada29a92e

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 51 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\17f3d10e465005474250219f4fd10b89bb002ddaa34cfeb960883324cecc049c.exe
    "C:\Users\Admin\AppData\Local\Temp\17f3d10e465005474250219f4fd10b89bb002ddaa34cfeb960883324cecc049c.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2516
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3528
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\17f3d10e465005474250219f4fd10b89bb002ddaa34cfeb960883324cecc049c.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3368
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3676
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:112
  • 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:3400
  • 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:2972

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    7d2765652517f53a90a2c22ebe36d638

    SHA1

    27078d69802ea65100c1ed49d5628de57e7cb608

    SHA256

    88c30edce727f5f9fd53ddbd12bfb1717466c8fb2b1c1c4cf23abe0e029b40c2

    SHA512

    a6f2b561441d93650f787fa96bd2ac015cc7a475d19fc2db744ec6d97634ccdd561e8bff9fd0e1f25d94217f0af40aab2ff24d870d462ae4232f08896e7ade60

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

    MD5

    7d2765652517f53a90a2c22ebe36d638

    SHA1

    27078d69802ea65100c1ed49d5628de57e7cb608

    SHA256

    88c30edce727f5f9fd53ddbd12bfb1717466c8fb2b1c1c4cf23abe0e029b40c2

    SHA512

    a6f2b561441d93650f787fa96bd2ac015cc7a475d19fc2db744ec6d97634ccdd561e8bff9fd0e1f25d94217f0af40aab2ff24d870d462ae4232f08896e7ade60

  • memory/2516-132-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3528-133-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB