Analysis

  • max time kernel
    173s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:48

General

  • Target

    090393d6a8fbc2bcf45ba3383d5f12f9c62363afd00335b5099200af70087e20.exe

  • Size

    192KB

  • MD5

    8724fb781e2098113b23b613d8a8401b

  • SHA1

    f03d71a6ff75f6a5c91fdfe3dd69ff92ed95b68b

  • SHA256

    090393d6a8fbc2bcf45ba3383d5f12f9c62363afd00335b5099200af70087e20

  • SHA512

    2435cba75d24d738d399d74e1503fa09b458d0af0eeb163dafe8318529e547703d6ea56f3460b9dcfb2c531402511670c653e2e5ec16b88cdc176c9b953e48cc

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 52 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\090393d6a8fbc2bcf45ba3383d5f12f9c62363afd00335b5099200af70087e20.exe
    "C:\Users\Admin\AppData\Local\Temp\090393d6a8fbc2bcf45ba3383d5f12f9c62363afd00335b5099200af70087e20.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1556
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3220
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\090393d6a8fbc2bcf45ba3383d5f12f9c62363afd00335b5099200af70087e20.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3436
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:60
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3384
  • 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:1244
  • 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:2824

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    8c1075c20620b25ae55911bf728b9f92

    SHA1

    4b133c18827a7095410ee88816f6098acde83f1b

    SHA256

    3e0e533d5909e2b50c983af4c45fa6672ec837cee61e533eaff12a87bcfc6291

    SHA512

    da60d5cee6fd28a9c065429077359e7fcd71fb5d689d40fa41c18ff80988e99d17bdb4f0deb40e94be7614fadddde4a34a01d172a5e481d03f9a763bde056f5d

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

    8c1075c20620b25ae55911bf728b9f92

    SHA1

    4b133c18827a7095410ee88816f6098acde83f1b

    SHA256

    3e0e533d5909e2b50c983af4c45fa6672ec837cee61e533eaff12a87bcfc6291

    SHA512

    da60d5cee6fd28a9c065429077359e7fcd71fb5d689d40fa41c18ff80988e99d17bdb4f0deb40e94be7614fadddde4a34a01d172a5e481d03f9a763bde056f5d