Windows 7 deprecation

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Analysis

  • max time kernel
    149s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    03/06/2024, 22:29

General

  • Target

    1907c3dcacbab77141e45cd1bb6d22ec2ebc71e04799aa7ce7bb9b4868bb53cf.exe

  • Size

    79KB

  • MD5

    ac4888098482816e273845f78c982150

  • SHA1

    755f9498dd723f85740ee07186f2b5d5acfc0014

  • SHA256

    1907c3dcacbab77141e45cd1bb6d22ec2ebc71e04799aa7ce7bb9b4868bb53cf

  • SHA512

    6d8e8a2de31a26980fd6e6ca1f62d854401f6a932f76bec0ac6fe4639f523b10264cf5f5be3a10978619f0041e1c38fb4e9c2e7f297ecc545f330fc37f96bcc0

  • SSDEEP

    1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOaSNLf:GhfxHNIreQm+HiRSNLf

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies system executable filetype association 2 TTPs 5 IoCs
  • Drops file in System32 directory 4 IoCs
  • Drops file in Windows directory 2 IoCs
  • Modifies registry class 15 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1907c3dcacbab77141e45cd1bb6d22ec2ebc71e04799aa7ce7bb9b4868bb53cf.exe
    "C:\Users\Admin\AppData\Local\Temp\1907c3dcacbab77141e45cd1bb6d22ec2ebc71e04799aa7ce7bb9b4868bb53cf.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1252
    • C:\Windows\system\rundll32.exe
      C:\Windows\system\rundll32.exe
      2⤵
      • Executes dropped EXE
      • Modifies system executable filetype association
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:2092

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\notepad¢¬.exe

    Filesize

    76KB

    MD5

    32f7be798e77fffa066790af9ee9579d

    SHA1

    89c416f346b2ce2430db60ff41e27042bf5b9420

    SHA256

    a6496af4f365b9448591113cf1e7321b4830f4b138d5b285c4a5a4fc7d7195c5

    SHA512

    fd7c5e191b7a986f4c109064a9a6d44dfdfaffedc184b82ceb3ac884a948c24a1a1b67b0f6fc3e166e1512e145652be6313665dc722b70b934c4ac3300cd6c89

  • \Windows\system\rundll32.exe

    Filesize

    74KB

    MD5

    f5303973b55d49f4b04699f21b78d053

    SHA1

    97ece96bd954d61aa3c19ae1410549fadc2a83ef

    SHA256

    687d3cc883e1780594eb4117c95b0eb753c33e875dbd0d5a5b1e14a52361fa1a

    SHA512

    38c9a1d05cb1d1c9028b3f142dd921858b9f2f474d9ea2e2630e6f7868a221fe0239445b12c6ce5c98178f9690dd1a3691c5bcd1b65a551f4f7ea87f7a01dd86

  • memory/1252-0-0x0000000000400000-0x0000000000415A00-memory.dmp

    Filesize

    86KB

  • memory/1252-12-0x0000000000270000-0x0000000000286000-memory.dmp

    Filesize

    88KB

  • memory/1252-18-0x0000000000270000-0x0000000000286000-memory.dmp

    Filesize

    88KB

  • memory/1252-21-0x0000000000400000-0x0000000000415A00-memory.dmp

    Filesize

    86KB

  • memory/1252-22-0x0000000000270000-0x0000000000272000-memory.dmp

    Filesize

    8KB

  • memory/2092-19-0x0000000000400000-0x0000000000415A00-memory.dmp

    Filesize

    86KB