Windows 7 deprecation

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Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    01/06/2024, 19:29

General

  • Target

    39474d3299f50b0f8a7c7370b77237279d572f719259759b34caa18b23105860.exe

  • Size

    82KB

  • MD5

    a077a15d1c76cceed1e456aa3d489a19

  • SHA1

    31c01fb0872426529723c0923cb105d1eaf756c5

  • SHA256

    39474d3299f50b0f8a7c7370b77237279d572f719259759b34caa18b23105860

  • SHA512

    16b2124eb85a3898a7e9f106fff172a0aa168779ce26a2c4b9346bcda2b958de9edb64869c743ee5f3300b62f052f59f44a83b234d24f916b61d340ae385dda7

  • SSDEEP

    1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOXKpHr:GhfxHNIreQm+HiAKpHr

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\39474d3299f50b0f8a7c7370b77237279d572f719259759b34caa18b23105860.exe
    "C:\Users\Admin\AppData\Local\Temp\39474d3299f50b0f8a7c7370b77237279d572f719259759b34caa18b23105860.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:1636
    • 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:2696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\notepad¢¬.exe

    Filesize

    81KB

    MD5

    dab0fd4bed3d4af8a0565f565daa47d7

    SHA1

    dd6fedfd22c992838b0e72ec6bcb0292db08a3db

    SHA256

    09aa515ef3c920b28a13b6a1ed8ffdbd286bca022a7ab1d6cfda6110f4977c88

    SHA512

    f05b00540b099e3fa1d57bcd93b08a151ee216a512e12f9d9b0490d1d3a97997a766d3158aa092245959a7bcd89b5bde082ed4729a92ff04afcf3c451851fa0f

  • \Windows\system\rundll32.exe

    Filesize

    76KB

    MD5

    59289e15b542cd1489061d6dafa7c86d

    SHA1

    df9efacf903f045d15a061459f72bfc506de6e65

    SHA256

    482ef96ede19f8ed35ae7a2d67b05e134a1654a51fdac17960e5195ae1714d77

    SHA512

    23d3b4972a8218297269d97fdf67a17ce99f8be16f79ad710c00efaf49aa36744db7df687cad6a3eba78d4ffd7c2584fa6d6996dc1a31f01bc0fd7f4bd2e7fa6

  • memory/1636-0-0x0000000000400000-0x0000000000415A00-memory.dmp

    Filesize

    86KB

  • memory/1636-12-0x00000000003B0000-0x00000000003C6000-memory.dmp

    Filesize

    88KB

  • memory/1636-21-0x00000000003B0000-0x00000000003B2000-memory.dmp

    Filesize

    8KB

  • memory/1636-20-0x0000000000400000-0x0000000000415A00-memory.dmp

    Filesize

    86KB

  • memory/2696-18-0x0000000000400000-0x0000000000415A00-memory.dmp

    Filesize

    86KB