Analysis

  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/11/2024, 22:25

General

  • Target
    c9866c46ff67b1e8df75b1202e48d1fa4a69db91c999bd67b69fa4e5463c0ee5.exe
  • Size 5.4MB
  • Sample241112-2b18yasfmp
  • SHA256 c9866c46ff67b1e8df75b1202e48d1fa4a69db91c999bd67b69fa4e5463c0ee5
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Renames multiple (318) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c9866c46ff67b1e8df75b1202e48d1fa4a69db91c999bd67b69fa4e5463c0ee5.exe
    "C:\Users\Admin\AppData\Local\Temp\c9866c46ff67b1e8df75b1202e48d1fa4a69db91c999bd67b69fa4e5463c0ee5.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1032
    • C:\Windows\SysWOW64\sysx32.exe
      C:\Windows\system32\sysx32.exe /scan
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:736

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        PushCheckpoint.exe

        • Path C:\Program Files\PushCheckpoint.exe
        • Size 5.4MB
        • SHA256 e21307ebefca7fa1765fb2c54491606aa8e833694cac1994910434c112df8f10
        • MD5 SHA1 SHA512 SSDEEP

        sysx32.exe

        • Path C:\Windows\SysWOW64\sysx32.exe
        • Size 5.4MB
        • SHA256 c9866c46ff67b1e8df75b1202e48d1fa4a69db91c999bd67b69fa4e5463c0ee5
        • MD5 SHA1 SHA512 SSDEEP

        memory/736-991-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/736-990-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/736-2691-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/736-2692-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/736-2693-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/1032-0-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/1032-9-0x0000000000400000-0x0000000000411000-memory.dmp