Analysis

  • max time kernel
    165s
  • max time network
    178s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 06:05

General

  • Target

    10e74d32d498d95b157e6984053cb4cf472b8e17437b7d35283dd8f566926271.exe

  • Size

    89KB

  • MD5

    2824c94dbd4b81ea77fcc98ea503ee57

  • SHA1

    0e0a3c434b800f841ee3bd0eee5b12298dfb35ee

  • SHA256

    10e74d32d498d95b157e6984053cb4cf472b8e17437b7d35283dd8f566926271

  • SHA512

    f64cca3447a02b664eace5315e5d56edd590cdf9cc7727c430138560cac96ee439295556cdd5238b5d08ea0339e68e81863dc8c3d0cd5adefa7a828a9350ef37

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 47 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\10e74d32d498d95b157e6984053cb4cf472b8e17437b7d35283dd8f566926271.exe
    "C:\Users\Admin\AppData\Local\Temp\10e74d32d498d95b157e6984053cb4cf472b8e17437b7d35283dd8f566926271.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1804
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1304
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\10e74d32d498d95b157e6984053cb4cf472b8e17437b7d35283dd8f566926271.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2284
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:524
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3968
  • 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:3868
  • 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:1012

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    2f7f6b6acdb6b9b2afc720438badd82e

    SHA1

    c98627f471fe42cc2665ffa58f97bc20f7283fa9

    SHA256

    0acfbebc592079d54bc4795ddd37b11ea016ef296a2878ae5c4583c136c4dcce

    SHA512

    eeef4ada51f7d887a4d06a75176cf08b35d704a00449a641153319e3c11f9f0281af21814ea2f37878bd899b92c1f01dc24f5f74ec6c7480ed6e7f97b8066ee6

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

    MD5

    2f7f6b6acdb6b9b2afc720438badd82e

    SHA1

    c98627f471fe42cc2665ffa58f97bc20f7283fa9

    SHA256

    0acfbebc592079d54bc4795ddd37b11ea016ef296a2878ae5c4583c136c4dcce

    SHA512

    eeef4ada51f7d887a4d06a75176cf08b35d704a00449a641153319e3c11f9f0281af21814ea2f37878bd899b92c1f01dc24f5f74ec6c7480ed6e7f97b8066ee6