Analysis

  • max time kernel
    44s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    01/10/2022, 18:11

General

  • Target

    4ce7124eed014203dcd03bea7ae9ed3fb1928c28a6754cf36d426db39820a019.exe

  • Size

    709KB

  • MD5

    6d6257cc83173b22b6cf40a8b39ad2e5

  • SHA1

    5abab4978391f123275efbad3c6450602d36d78a

  • SHA256

    4ce7124eed014203dcd03bea7ae9ed3fb1928c28a6754cf36d426db39820a019

  • SHA512

    8fc9c622165bfc7a47c6ca9cfcd0a5137434854c47d65be8ac6b5333cd158c63ff6c13cd0a1774bdcec44f5eb8c5e99133cea4ab41aaf7ff352926066b96bd02

  • SSDEEP

    6144:a+nglw9ayQv3ahvyn/PU7O0KXgTTSjyEN2ERBOzlSmGzzJFB:rjS3Yvyn/0TvSmwR

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • 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 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ce7124eed014203dcd03bea7ae9ed3fb1928c28a6754cf36d426db39820a019.exe
    "C:\Users\Admin\AppData\Local\Temp\4ce7124eed014203dcd03bea7ae9ed3fb1928c28a6754cf36d426db39820a019.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1480
    • 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:620
      • 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:1100
    • 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:1128
      • 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:1244
    • C:\windows\temp\14400.exe
      "C:\windows\temp\14400.exe"
      2⤵
      • Executes dropped EXE
      PID:324

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Windows\Temp\14400.exe

          Filesize

          14KB

          MD5

          34a0b44796543ce75f0cf99e31c847f6

          SHA1

          b388c1903611e0ab9df4097a9deff81f05f5275d

          SHA256

          57416c130191468a1f9f5c2ba044c01a3f8cc9ae6c942370a68cf9da09ea6e7b

          SHA512

          a2a06d5c58fd2faab784f4fcd03d08e3cd530e1b0cac1ea4d498a6ffe0da9efcc2e9f6e1ff3b50eb171ba885b3d4a547a7a98e1836ff454dc0ee0cec97bce3c0

        • \Windows\Temp\14400.exe

          Filesize

          14KB

          MD5

          34a0b44796543ce75f0cf99e31c847f6

          SHA1

          b388c1903611e0ab9df4097a9deff81f05f5275d

          SHA256

          57416c130191468a1f9f5c2ba044c01a3f8cc9ae6c942370a68cf9da09ea6e7b

          SHA512

          a2a06d5c58fd2faab784f4fcd03d08e3cd530e1b0cac1ea4d498a6ffe0da9efcc2e9f6e1ff3b50eb171ba885b3d4a547a7a98e1836ff454dc0ee0cec97bce3c0

        • memory/1480-54-0x00000000758B1000-0x00000000758B3000-memory.dmp

          Filesize

          8KB