Analysis

  • max time kernel
    170s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 07:08

General

  • Target

    0e6733828399ba77841f16f10a1f1010cc1e0552f4569f04f0de6ffdf637f031.exe

  • Size

    125KB

  • MD5

    915d73858e7d3f18d12a5db564ee20bc

  • SHA1

    20ec71010ed64f9c43471d5413d6431d2831d27f

  • SHA256

    0e6733828399ba77841f16f10a1f1010cc1e0552f4569f04f0de6ffdf637f031

  • SHA512

    716921cf505db71e74dc4e6ad8ec641b8b8a332dc60a5456027cfced958bc45f05a4b637ad7f5ade069924a3aee13b61f7dc9226abe4450a358d181db1b61ef9

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 54 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\0e6733828399ba77841f16f10a1f1010cc1e0552f4569f04f0de6ffdf637f031.exe
    "C:\Users\Admin\AppData\Local\Temp\0e6733828399ba77841f16f10a1f1010cc1e0552f4569f04f0de6ffdf637f031.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3716
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1980
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0e6733828399ba77841f16f10a1f1010cc1e0552f4569f04f0de6ffdf637f031.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1752
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2972
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1676
  • 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:3132
  • 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:3312

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    cc0d5f7d6da17c92574deb81d79cd028

    SHA1

    283fa5b400f018a6e49467350bd8c11f8ec1fd7a

    SHA256

    4289e487c0513d56881de9c4542de30d738d439622b9f33d043168489424b852

    SHA512

    e97d4a1f3586bbddb515d47bbf192de1cca3d1ea637f976b9893db51c2ee03389300ed9661fda03437bdf48bc02abd1e2c15856028fac6ce0c5ba36e247b9c51

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

    MD5

    cc0d5f7d6da17c92574deb81d79cd028

    SHA1

    283fa5b400f018a6e49467350bd8c11f8ec1fd7a

    SHA256

    4289e487c0513d56881de9c4542de30d738d439622b9f33d043168489424b852

    SHA512

    e97d4a1f3586bbddb515d47bbf192de1cca3d1ea637f976b9893db51c2ee03389300ed9661fda03437bdf48bc02abd1e2c15856028fac6ce0c5ba36e247b9c51