Overview

overview

10

Static

static

698ce70a52...cf.exe

windows7-x64

10

698ce70a52...cf.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    160s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/10/2022, 20:02

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General

  • Target
    698ce70a52b7335f29c2905bcf6bae53a238912af13ef86ef3820d2891e4d6cf.exe
  • Size 948KB
  • Sample221003-yr3j6adeb5
  • SHA256 698ce70a52b7335f29c2905bcf6bae53a238912af13ef86ef3820d2891e4d6cf
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
persistence

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • 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 4 IoCs
    persistence
  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\698ce70a52b7335f29c2905bcf6bae53a238912af13ef86ef3820d2891e4d6cf.exe
    "C:\Users\Admin\AppData\Local\Temp\698ce70a52b7335f29c2905bcf6bae53a238912af13ef86ef3820d2891e4d6cf.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4764
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c reg ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v freizer /t REG_SZ /d C:\WINDOWS\system32\freizer.exe /f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4868
      • C:\Windows\SysWOW64\reg.exe
        reg ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v freizer /t REG_SZ /d C:\WINDOWS\system32\freizer.exe /f
        3⤵
        • Adds Run key to start application
        PID:1004
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c reg ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v svchost /t REG_SZ /d C:\WINDOWS\system32\svchost.exe /f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4924
      • C:\Windows\SysWOW64\reg.exe
        reg ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v svchost /t REG_SZ /d C:\WINDOWS\system32\svchost.exe /f
        3⤵
        • Adds Run key to start application
        PID:5076
    • C:\windows\temp\40340.exe
      "C:\windows\temp\40340.exe"
      2⤵
      • Executes dropped EXE
      PID:1724

Network

        MITRE ATT&CK Enterprise v6

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        Downloads

        40340.exe
        • Path C:\Windows\Temp\40340.exe
        • Size 54KB
        • SHA256 049db1ac1b5beea7c420cc7c273c025c96f4e6214476cbeaeff24b7786d835a2
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        40340.exe
        • Path C:\windows\temp\40340.exe
        • Size 54KB
        • SHA256 049db1ac1b5beea7c420cc7c273c025c96f4e6214476cbeaeff24b7786d835a2
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download