Analysis

  • max time kernel
    170s
  • max time network
    179s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 07:54

General

  • Target

    0c574dfe04e98c429e1780572a7d8aa33a06b0517144ca7c02f9d81e3ff50241.exe

  • Size

    35KB

  • MD5

    046e35c3ab83dc6f68792ff9cde33c4d

  • SHA1

    314bdaac9f3707c38d8bb63811804b899a7d5df9

  • SHA256

    0c574dfe04e98c429e1780572a7d8aa33a06b0517144ca7c02f9d81e3ff50241

  • SHA512

    03c60f346b7cc6e721378e866a53120a067097509768eb46221493fe5026bc894f3ec1d194e95baea873110e7e939fdcea58ad82af56047e35b3355c149f704f

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • 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 50 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\0c574dfe04e98c429e1780572a7d8aa33a06b0517144ca7c02f9d81e3ff50241.exe
    "C:\Users\Admin\AppData\Local\Temp\0c574dfe04e98c429e1780572a7d8aa33a06b0517144ca7c02f9d81e3ff50241.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2072
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3208
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0c574dfe04e98c429e1780572a7d8aa33a06b0517144ca7c02f9d81e3ff50241.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3000
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3948
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:952
  • 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:3464
  • 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:3908

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    5e67c40aab88156a479fc947c8959f63

    SHA1

    f5f31f957eb22b5c91b9178d36fdc3d1e90a0d64

    SHA256

    dec9147f0d94bbd7eb2a795b70d014b19ab8d21f4a6175799c9d592d5ce4ab96

    SHA512

    929e221f3b5c508d912e57c98faa9a1766d5ddcdf7971f8e167d4a6d296f6524897bf074c99cbb0c5b3229a5fd7c44e1d4e699e4397810746762abc61c87f581

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

    MD5

    5e67c40aab88156a479fc947c8959f63

    SHA1

    f5f31f957eb22b5c91b9178d36fdc3d1e90a0d64

    SHA256

    dec9147f0d94bbd7eb2a795b70d014b19ab8d21f4a6175799c9d592d5ce4ab96

    SHA512

    929e221f3b5c508d912e57c98faa9a1766d5ddcdf7971f8e167d4a6d296f6524897bf074c99cbb0c5b3229a5fd7c44e1d4e699e4397810746762abc61c87f581