Analysis

  • max time kernel
    157s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 03:22

General

  • Target

    17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe

  • Size

    176KB

  • MD5

    d505aea61d332f9099131ca149bd4651

  • SHA1

    0f06ac3035d622bd152c17e631603a1058236f5c

  • SHA256

    17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8

  • SHA512

    2f1e4ee1bf6e2299104c9badfa173b18fe02241cc445bd74c7bdfdd95cbddff7d25f3290bfbabc277ac9d360aa1e226a62eea20f5b56d89144b83a92bb281d40

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 3 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\17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe
    "C:\Users\Admin\AppData\Local\Temp\17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1420
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:780
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:372
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3756
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3772
  • 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:3564
  • 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:1884

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    b6f61a94e4ef74a4407dd0a768e04a91

    SHA1

    019fef2dc6245e5ba8c3b3d4b665dd2467320af5

    SHA256

    7c9cb96b776b1c522e97411968978a6ced48a6b7838faf30dc699c476cf300be

    SHA512

    9e3c02c24f88025a8b83ddc9a92459a90126a498e36b77f3b0aa6af3d9ef943f419fdfac90ba6ebc95d7cfc4feb5a90a048e9567ad5a7d30a0089c7bb49ff67d

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

    MD5

    b6f61a94e4ef74a4407dd0a768e04a91

    SHA1

    019fef2dc6245e5ba8c3b3d4b665dd2467320af5

    SHA256

    7c9cb96b776b1c522e97411968978a6ced48a6b7838faf30dc699c476cf300be

    SHA512

    9e3c02c24f88025a8b83ddc9a92459a90126a498e36b77f3b0aa6af3d9ef943f419fdfac90ba6ebc95d7cfc4feb5a90a048e9567ad5a7d30a0089c7bb49ff67d

  • memory/1420-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB