Analysis

  • max time kernel
    131s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/10/2024, 00:00

General

  • Target
    7d2b17e7e0ab9d6852fb64f22be5924f4a9183c5e977f5e048b1a630c39233bf.exe
  • Size 3.5MB
  • Sample241023-aak2sasgrq
  • SHA256 7d2b17e7e0ab9d6852fb64f22be5924f4a9183c5e977f5e048b1a630c39233bf
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Renames multiple (316) files with added filename extension

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

  • Executes dropped EXE 2 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 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7d2b17e7e0ab9d6852fb64f22be5924f4a9183c5e977f5e048b1a630c39233bf.exe
    "C:\Users\Admin\AppData\Local\Temp\7d2b17e7e0ab9d6852fb64f22be5924f4a9183c5e977f5e048b1a630c39233bf.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2476
    • 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:2708
    • C:\Users\Admin\AppData\Local\Temp\_7d2b17e7e0ab9d6852fb64f22be5924f4a9183c5e977f5e048b1a630c39233bf.exe
      C:\Users\Admin\AppData\Local\Temp\_7d2b17e7e0ab9d6852fb64f22be5924f4a9183c5e977f5e048b1a630c39233bf.exe
      2⤵
      • Executes dropped EXE
      PID:3828

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 3.5MB
        • SHA256 f2eee2d3ce71b94778b4a63e018823ccf5dff98f053524a297e172b9efedfb68
        • MD5 SHA1 SHA512 SSDEEP

        _7d2b17e7e0ab9d6852fb64f22be5924f4a9183c5e977f5e048b1a630c39233bf.exe

        • Path C:\Users\Admin\AppData\Local\Temp\_7d2b17e7e0ab9d6852fb64f22be5924f4a9183c5e977f5e048b1a630c39233bf.exe
        • Size 3.5MB
        • SHA256 5cbb9af69cc6189b7ba6c8a99fe3cbb0c5c7f9bece8f18336447ac1a3371d623
        • MD5 SHA1 SHA512 SSDEEP

        sysx32.exe

        • Path C:\Windows\SysWOW64\sysx32.exe
        • Size 3.5MB
        • SHA256 7d2b17e7e0ab9d6852fb64f22be5924f4a9183c5e977f5e048b1a630c39233bf
        • MD5 SHA1 SHA512 SSDEEP

        memory/2476-0-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/2476-10-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/2708-985-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/2708-986-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/2708-2686-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/2708-2687-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/2708-2688-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/2708-2689-0x0000000000400000-0x0000000000411000-memory.dmp