Analysis

  • max time kernel
    174s
  • max time network
    183s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 04:01

General

  • Target

    164a19272812f113885431339abe2736b210ee65b804bdfdfdec9d277ddf2456.exe

  • Size

    216KB

  • MD5

    0e408fe3f559e03f54a7c9073a5f0b66

  • SHA1

    bca535059d1d5f7f10f720d91c14c5e22145ddc1

  • SHA256

    164a19272812f113885431339abe2736b210ee65b804bdfdfdec9d277ddf2456

  • SHA512

    a5889be08178f11d7f132dc76effb9d748098228db9ec7dcd51cca88efb58312488744c83625a22a308ecadfa9d2260a102a7a6537db1505999efc27f7726d7a

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 4 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 53 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\164a19272812f113885431339abe2736b210ee65b804bdfdfdec9d277ddf2456.exe
    "C:\Users\Admin\AppData\Local\Temp\164a19272812f113885431339abe2736b210ee65b804bdfdfdec9d277ddf2456.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3248
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2640
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\164a19272812f113885431339abe2736b210ee65b804bdfdfdec9d277ddf2456.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4004
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1236
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:332
  • 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:3468
  • 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:3712

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    0518ba9275cecd9a473367e8ee0ccbab

    SHA1

    f10ea2c5e7414f1ee7a3c028d5fe67aba035a99d

    SHA256

    b59af92536c221a9153b6a5921fc3debb3a2d45d39e88a38ed39130424fe0284

    SHA512

    c0969b35a1fd37f90d4b5cb399c0ddb944add8425fc1da68560e81a2a91350809843c7d8d10c3689bcc1d453ff0d4dda9c762df2d8afea6c6d48e013eb46ab7f

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

    MD5

    0518ba9275cecd9a473367e8ee0ccbab

    SHA1

    f10ea2c5e7414f1ee7a3c028d5fe67aba035a99d

    SHA256

    b59af92536c221a9153b6a5921fc3debb3a2d45d39e88a38ed39130424fe0284

    SHA512

    c0969b35a1fd37f90d4b5cb399c0ddb944add8425fc1da68560e81a2a91350809843c7d8d10c3689bcc1d453ff0d4dda9c762df2d8afea6c6d48e013eb46ab7f

  • memory/2640-133-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3248-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB