Analysis

  • max time kernel
    49s
  • max time network
    199s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 15:32

General

  • Target

    b2565757630b308e81bc36a3d2355680431ad57424335a9dc18cf7feed9a1209.exe

  • Size

    711KB

  • MD5

    32930a6940017c9ba58b4bcf3bd90a4a

  • SHA1

    40aba932097687ac1f917ef8ebc3e95df06e3cdc

  • SHA256

    b2565757630b308e81bc36a3d2355680431ad57424335a9dc18cf7feed9a1209

  • SHA512

    76dc28b185325afbae88c4080e4bc59824bdbdb54fa91554090bf318fecbcef3bb62a9e243d00b42c16e2d3ea2c7512e1c0f2b368afd8ba5cc58eb44179d4dbd

  • SSDEEP

    12288:IdtuyKy3Sw/aCjB39e2njxJXOZMTw1NLgg/EI1UTeD9rnH:ITuyXxaCt39e2njbOD1NUtI1UTeJ

Score
6/10

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 10 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b2565757630b308e81bc36a3d2355680431ad57424335a9dc18cf7feed9a1209.exe
    "C:\Users\Admin\AppData\Local\Temp\b2565757630b308e81bc36a3d2355680431ad57424335a9dc18cf7feed9a1209.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Picasa" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\cvrss.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1512
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Picasa" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\cvrss.exe
        3⤵
        • Adds Run key to start application
        PID:992
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Picasa" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\cvrss.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:676
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Picasa" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\cvrss.exe
        3⤵
        • Adds Run key to start application
        PID:1580
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Picasa" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\cvrss.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:936
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Picasa" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\cvrss.exe
        3⤵
        • Adds Run key to start application
        PID:928
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Picasa" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\cvrss.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:664
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Picasa" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\cvrss.exe
        3⤵
        • Adds Run key to start application
        PID:956
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Picasa" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\cvrss.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:860
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Picasa" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\cvrss.exe
        3⤵
        • Adds Run key to start application
        PID:1636

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/664-59-0x0000000000000000-mapping.dmp

  • memory/676-57-0x0000000000000000-mapping.dmp

  • memory/860-61-0x0000000000000000-mapping.dmp

  • memory/928-63-0x0000000000000000-mapping.dmp

  • memory/936-58-0x0000000000000000-mapping.dmp

  • memory/956-64-0x0000000000000000-mapping.dmp

  • memory/992-60-0x0000000000000000-mapping.dmp

  • memory/1512-56-0x0000000000000000-mapping.dmp

  • memory/1580-62-0x0000000000000000-mapping.dmp

  • memory/1636-65-0x0000000000000000-mapping.dmp

  • memory/2024-54-0x00000000767B1000-0x00000000767B3000-memory.dmp

    Filesize

    8KB

  • memory/2024-55-0x0000000074F70000-0x000000007551B000-memory.dmp

    Filesize

    5.7MB

  • memory/2024-66-0x0000000074F70000-0x000000007551B000-memory.dmp

    Filesize

    5.7MB