Analysis

  • max time kernel
    151s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 16:52

General

  • Target

    7f3a5d89cabb8cb6a5954d175ec66cbd48391fcd3b628ac53d5af409428a8925.exe

  • Size

    292KB

  • MD5

    451383b8da4b56ce325015420e63f7f0

  • SHA1

    0bea16f07b32750348c0610595d59c69e2192a7c

  • SHA256

    7f3a5d89cabb8cb6a5954d175ec66cbd48391fcd3b628ac53d5af409428a8925

  • SHA512

    31e37e99ed3b7f3ebc646d438f86c28f08170cf33489ac2e2f969d2999d342922b1528bdfb8315f216c341b92188294ab25527348cea42fe0c63f7ae88980867

  • SSDEEP

    6144:CaczcnqtrZjQCBBvfmge2uXOyDDaX66UEbuGHAceNEFKLrLRKD7ucfnxh4B7yCJY:Ca7nqtti9K5CooEeOnioN

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 29 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 SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7f3a5d89cabb8cb6a5954d175ec66cbd48391fcd3b628ac53d5af409428a8925.exe
    "C:\Users\Admin\AppData\Local\Temp\7f3a5d89cabb8cb6a5954d175ec66cbd48391fcd3b628ac53d5af409428a8925.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1480
    • C:\Users\Admin\nuijee.exe
      "C:\Users\Admin\nuijee.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1920

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\nuijee.exe

    Filesize

    292KB

    MD5

    421e1f244e9209a077788e1e1db18394

    SHA1

    eeba5c9b9f23f251e86c197f814ef268eb34615c

    SHA256

    d3f916ef4148f44e5c4d39f6c20c84d3ff92a878981ed68b86105da1fa743b1e

    SHA512

    0414a38af925099c9b88060b862ee0b13552ab6af5957cba70dfd0b6aa305b3b2def213197b230efacd8fd2b75472c9e3f8445243a068e5b5935450938aa3df8

  • C:\Users\Admin\nuijee.exe

    Filesize

    292KB

    MD5

    421e1f244e9209a077788e1e1db18394

    SHA1

    eeba5c9b9f23f251e86c197f814ef268eb34615c

    SHA256

    d3f916ef4148f44e5c4d39f6c20c84d3ff92a878981ed68b86105da1fa743b1e

    SHA512

    0414a38af925099c9b88060b862ee0b13552ab6af5957cba70dfd0b6aa305b3b2def213197b230efacd8fd2b75472c9e3f8445243a068e5b5935450938aa3df8

  • \Users\Admin\nuijee.exe

    Filesize

    292KB

    MD5

    421e1f244e9209a077788e1e1db18394

    SHA1

    eeba5c9b9f23f251e86c197f814ef268eb34615c

    SHA256

    d3f916ef4148f44e5c4d39f6c20c84d3ff92a878981ed68b86105da1fa743b1e

    SHA512

    0414a38af925099c9b88060b862ee0b13552ab6af5957cba70dfd0b6aa305b3b2def213197b230efacd8fd2b75472c9e3f8445243a068e5b5935450938aa3df8

  • \Users\Admin\nuijee.exe

    Filesize

    292KB

    MD5

    421e1f244e9209a077788e1e1db18394

    SHA1

    eeba5c9b9f23f251e86c197f814ef268eb34615c

    SHA256

    d3f916ef4148f44e5c4d39f6c20c84d3ff92a878981ed68b86105da1fa743b1e

    SHA512

    0414a38af925099c9b88060b862ee0b13552ab6af5957cba70dfd0b6aa305b3b2def213197b230efacd8fd2b75472c9e3f8445243a068e5b5935450938aa3df8

  • memory/1480-56-0x0000000076201000-0x0000000076203000-memory.dmp

    Filesize

    8KB

  • memory/1480-57-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1480-66-0x0000000002910000-0x0000000002960000-memory.dmp

    Filesize

    320KB

  • memory/1480-67-0x0000000002910000-0x0000000002960000-memory.dmp

    Filesize

    320KB

  • memory/1480-69-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1920-60-0x0000000000000000-mapping.dmp

  • memory/1920-68-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1920-70-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB