Analysis

  • max time kernel
    93s
  • max time network
    95s
  • 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 15:08

General

  • Target

    ff6df985696e6c5aabc6fe2f141f7bbe06a4fc0d223974c8d134bc0dd68243b1N.exe

  • Size

    4.2MB

  • MD5

    d4dbae25b11afc78ef7a5993f1972e00

  • SHA1

    b1fcf4f6fe112dd5069dad5b20957d8dc7fffb6a

  • SHA256

    ff6df985696e6c5aabc6fe2f141f7bbe06a4fc0d223974c8d134bc0dd68243b1

  • SHA512

    a96eb11d1191d3132ec8b926ab074a18876043fcd7148527d9792eb181c80fa438dab4326839f88b7f106c385af5f2acaea44c679c8e85e1d441cc7fe58284de

  • SSDEEP

    49152:90zBwFbfscEmKev3KcYq1r7RISY4+jfC09VbGR0T1c0tkAxT66LV8kq160E:2B+o1c0tkStykq160E

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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ff6df985696e6c5aabc6fe2f141f7bbe06a4fc0d223974c8d134bc0dd68243b1N.exe
    "C:\Users\Admin\AppData\Local\Temp\ff6df985696e6c5aabc6fe2f141f7bbe06a4fc0d223974c8d134bc0dd68243b1N.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4220
    • 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:2840
    • C:\Users\Admin\AppData\Local\Temp\_ff6df985696e6c5aabc6fe2f141f7bbe06a4fc0d223974c8d134bc0dd68243b1N.exe
      C:\Users\Admin\AppData\Local\Temp\_ff6df985696e6c5aabc6fe2f141f7bbe06a4fc0d223974c8d134bc0dd68243b1N.exe
      2⤵
      • Executes dropped EXE
      PID:2244

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\7-Zip\7z.exe

    Filesize

    4.2MB

    MD5

    9bd1cc36f10400c14630fbb9fcc62fd5

    SHA1

    557d992a823b4b5cba1ce36277df5117e3e7b86b

    SHA256

    004ebe79e253e251e3b1ec9ed1e5538db6aef598e0f11c785c76911b1809f5dd

    SHA512

    d52d6df7540f973abd9d0407f230de11fe0dadd323e574f6f8adc06e8e4402f52a636fbc253225709979fb5183310b18f7060e455767836f97f60b30d4ccdb79

  • C:\Users\Admin\AppData\Local\Temp\_ff6df985696e6c5aabc6fe2f141f7bbe06a4fc0d223974c8d134bc0dd68243b1N.exe

    Filesize

    4.2MB

    MD5

    95e8ac8b3dd0f9a63957b1fb40d19ab7

    SHA1

    96851d50d2e090fe535343dca6de0f8fb28b2019

    SHA256

    791cd8217a36dc8b46a7712a5a51f8903f4f0c9bce35483e26e4427bb50539bf

    SHA512

    5824164eb6e9ba6d35333f63e8a756fea9ec0c39cf54e876b5213dfa7aa10a2da2daf37720a70e0087aab2a0f0ab10c46364e314df2678ffd5c6528883d084bd

  • C:\Windows\SysWOW64\sysx32.exe

    Filesize

    4.2MB

    MD5

    d4dbae25b11afc78ef7a5993f1972e00

    SHA1

    b1fcf4f6fe112dd5069dad5b20957d8dc7fffb6a

    SHA256

    ff6df985696e6c5aabc6fe2f141f7bbe06a4fc0d223974c8d134bc0dd68243b1

    SHA512

    a96eb11d1191d3132ec8b926ab074a18876043fcd7148527d9792eb181c80fa438dab4326839f88b7f106c385af5f2acaea44c679c8e85e1d441cc7fe58284de

  • memory/2840-984-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2840-983-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2840-2687-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2840-2688-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2840-2689-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/2840-2690-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/4220-0-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB

  • memory/4220-92-0x0000000000400000-0x0000000000411000-memory.dmp

    Filesize

    68KB