Analysis

  • max time kernel
    156s
  • max time network
    182s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 02:53

General

  • Target

    192d4760bfa9b2c2ea1963abf190fe5ba27d26ac26db74a79ac87917bf081892.exe

  • Size

    36KB

  • MD5

    1e03520920495fa80a6fa77841f647f8

  • SHA1

    a965f481818d3d66dc6fd446b78baf7303caf1c9

  • SHA256

    192d4760bfa9b2c2ea1963abf190fe5ba27d26ac26db74a79ac87917bf081892

  • SHA512

    8aec43e981a23cb67d3424b05ba2a1aa0bbba7ade7adf64c291c3d67d63dd9c62b9a194c6714137f2bd70cf205d294f0b588a228501d71bd592347c1a83da83f

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 49 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\192d4760bfa9b2c2ea1963abf190fe5ba27d26ac26db74a79ac87917bf081892.exe
    "C:\Users\Admin\AppData\Local\Temp\192d4760bfa9b2c2ea1963abf190fe5ba27d26ac26db74a79ac87917bf081892.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1336
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3196
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\192d4760bfa9b2c2ea1963abf190fe5ba27d26ac26db74a79ac87917bf081892.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2088
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3512
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:756
  • 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:1572
  • 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:396

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    2baf115bd40ae9bfc2693c7b7d4826b5

    SHA1

    ec50700b70c39b6192339e55b2ae4f1d61fad36b

    SHA256

    aacee48ffe98ef0a98c71679d30619512b67b313624fa74a42e524f50d6d5f43

    SHA512

    2404aaa9de9d35ef8b475758668ef076d464646a8f1c5d702717a2f7a45af646efc55bb9b13c9926e168b76efd48f0f94a9429de783b3c2042a56090c31b748f

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

    MD5

    2baf115bd40ae9bfc2693c7b7d4826b5

    SHA1

    ec50700b70c39b6192339e55b2ae4f1d61fad36b

    SHA256

    aacee48ffe98ef0a98c71679d30619512b67b313624fa74a42e524f50d6d5f43

    SHA512

    2404aaa9de9d35ef8b475758668ef076d464646a8f1c5d702717a2f7a45af646efc55bb9b13c9926e168b76efd48f0f94a9429de783b3c2042a56090c31b748f