Analysis

  • max time kernel
    138s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/10/2024, 19:20

General

  • Target
    1974bec0e5b5978c33142344a83f692ffeed911be61a1a6a025c4b11a8fd1910.exe
  • Size 4.5MB
  • Sample241018-x14m5stfph
  • SHA256 1974bec0e5b5978c33142344a83f692ffeed911be61a1a6a025c4b11a8fd1910
  • 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\1974bec0e5b5978c33142344a83f692ffeed911be61a1a6a025c4b11a8fd1910.exe
    "C:\Users\Admin\AppData\Local\Temp\1974bec0e5b5978c33142344a83f692ffeed911be61a1a6a025c4b11a8fd1910.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1084
    • 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:112
    • C:\Users\Admin\AppData\Local\Temp\_1974bec0e5b5978c33142344a83f692ffeed911be61a1a6a025c4b11a8fd1910.exe
      C:\Users\Admin\AppData\Local\Temp\_1974bec0e5b5978c33142344a83f692ffeed911be61a1a6a025c4b11a8fd1910.exe
      2⤵
      • Executes dropped EXE
      PID:5084

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 4.5MB
        • SHA256 7a0e3726ce77e659f934d1a3624c50230751966fcc751744619ba8ce13c45af1
        • MD5 SHA1 SHA512 SSDEEP

        _1974bec0e5b5978c33142344a83f692ffeed911be61a1a6a025c4b11a8fd1910.exe

        • Path C:\Users\Admin\AppData\Local\Temp\_1974bec0e5b5978c33142344a83f692ffeed911be61a1a6a025c4b11a8fd1910.exe
        • Size 4.4MB
        • SHA256 d48bc14a6e59db1ca3b1d1366eeaee66af9bfaf0e808f39fba5276a6bbe61b39
        • MD5 SHA1 SHA512 SSDEEP

        sysx32.exe

        • Path C:\Windows\SysWOW64\sysx32.exe
        • Size 4.5MB
        • SHA256 1974bec0e5b5978c33142344a83f692ffeed911be61a1a6a025c4b11a8fd1910
        • MD5 SHA1 SHA512 SSDEEP

        memory/112-1310-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/112-1311-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/112-2687-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/112-2688-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/112-2689-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/1084-0-0x0000000000400000-0x0000000000411000-memory.dmp

        memory/1084-147-0x0000000000400000-0x0000000000411000-memory.dmp