Analysis

  • max time kernel
    166s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 10:42

General

  • Target

    065642eea89a547b1db1fdd6e6e6eb89984523f46b7824c4a07cfbaa7ba93b60.exe

  • Size

    99KB

  • MD5

    730ba0ab7baf63252432bfa78c883c16

  • SHA1

    66f6626a3c89ae6cdda42b4d54dcdb1790e7f259

  • SHA256

    065642eea89a547b1db1fdd6e6e6eb89984523f46b7824c4a07cfbaa7ba93b60

  • SHA512

    c10eca1889939d722a15892ab3d6af467fd14a1264e6c4278c9b4fcaa66ce628757017a7d23a8c961b4dfe120534b6a679dcf4ad734c2c299d36d2e4c78a6bd0

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 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\065642eea89a547b1db1fdd6e6e6eb89984523f46b7824c4a07cfbaa7ba93b60.exe
    "C:\Users\Admin\AppData\Local\Temp\065642eea89a547b1db1fdd6e6e6eb89984523f46b7824c4a07cfbaa7ba93b60.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3152
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1916
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\065642eea89a547b1db1fdd6e6e6eb89984523f46b7824c4a07cfbaa7ba93b60.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2320
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1180
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:4084
  • 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:3880
  • 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:3416

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    cc864bc87210932d445015f891f55766

    SHA1

    4ad19e8d1e1bedc9ddfc39f16e356e41b21ef50e

    SHA256

    bc5920bc4f30bd21ae2044fe3a0180aa605c393e6c1b39a288879e6edda826c4

    SHA512

    4f19549eb58a8412bf8416b42282edc9b4cf778e4976273cbee4a368bcd1d0e40c11814806a5b780f32e5c69ca9369d9c556894b229a9cd7ea4cf09fa455684a

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    cc864bc87210932d445015f891f55766

    SHA1

    4ad19e8d1e1bedc9ddfc39f16e356e41b21ef50e

    SHA256

    bc5920bc4f30bd21ae2044fe3a0180aa605c393e6c1b39a288879e6edda826c4

    SHA512

    4f19549eb58a8412bf8416b42282edc9b4cf778e4976273cbee4a368bcd1d0e40c11814806a5b780f32e5c69ca9369d9c556894b229a9cd7ea4cf09fa455684a