Analysis

  • max time kernel
    174s
  • max time network
    187s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 06:46

General

  • Target

    0f055f3137e08e60fff6271ac8665723e38c71c0663cd7a4796203bf0b4f2b53.exe

  • Size

    216KB

  • MD5

    de2e33614b5252f8fc4a904c184e113c

  • SHA1

    308534741cecae7488b25261ca08c039206e9e7f

  • SHA256

    0f055f3137e08e60fff6271ac8665723e38c71c0663cd7a4796203bf0b4f2b53

  • SHA512

    08b9a9e4755932ef025e85d89adf27a8eeb2f3bf2b6697072d46c52de23d853e8ba645f321695bc2f925ecb2d7f8a402091c888e27b053cd8f75215b34aa6259

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 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\0f055f3137e08e60fff6271ac8665723e38c71c0663cd7a4796203bf0b4f2b53.exe
    "C:\Users\Admin\AppData\Local\Temp\0f055f3137e08e60fff6271ac8665723e38c71c0663cd7a4796203bf0b4f2b53.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3960
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1976
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0f055f3137e08e60fff6271ac8665723e38c71c0663cd7a4796203bf0b4f2b53.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3192
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3448
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:388
  • 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:2528
  • 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:872

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    c07041f8f91f8304695056e4d680e2b4

    SHA1

    a7758d0d92e9e28c0a33e76e3c8cba9e5f13ed07

    SHA256

    54086bfb4ba523f46505a7337c85bee2d407683368a5cbec6343ea4d407d498d

    SHA512

    a1084512a16ce84139af61cbdbcbf44c00649de740db61d69ecc7fc15791a2926fd98fb070f29bd2e91e8310a8d48510661d90cab25faeff891dc716d0059b16

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

    MD5

    c07041f8f91f8304695056e4d680e2b4

    SHA1

    a7758d0d92e9e28c0a33e76e3c8cba9e5f13ed07

    SHA256

    54086bfb4ba523f46505a7337c85bee2d407683368a5cbec6343ea4d407d498d

    SHA512

    a1084512a16ce84139af61cbdbcbf44c00649de740db61d69ecc7fc15791a2926fd98fb070f29bd2e91e8310a8d48510661d90cab25faeff891dc716d0059b16

  • memory/1976-133-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3960-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB