Windows 7 deprecation

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Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/04/2024, 02:18

General

  • Target

    a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe

  • Size

    85KB

  • MD5

    e33bfb874d24658a2ca75d0c5d87da8a

  • SHA1

    6ffc59402075e51d832fd9b7e18e616cb39fcc4b

  • SHA256

    a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e

  • SHA512

    ead166cdb581d2fe26642d73bfd49718d435e1b13c83eebe9ad13bd1d426cc541d6194f7684ad60edd24be7aebefec385e4999c400c68bed849b9a99a8507379

  • SSDEEP

    1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOmoiqWYntz8:GhfxHNIreQm+HiloiqWYntz8

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 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 28 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe
    "C:\Users\Admin\AppData\Local\Temp\a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe"
    1⤵
    • 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:4684
    • 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:4216

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\notepad¢¬.exe

    Filesize

    77KB

    MD5

    558fa9b680ea1433275ab01a7f8f7912

    SHA1

    4a8155b90fd3e36dabbba25cfafd79bed5e9c5b7

    SHA256

    a39383873946025e183ee46fbbcb095e575e106a9818b53ae6c2488e37239784

    SHA512

    ede6b71e7ae919711c621351f1a3c0aff176edda66fbd1989236a24208845bf1a6c5bbbd3f5a1c5fc3e497037c4c6eb9984337feb37e187ea97feac7453f5a94

  • C:\Windows\System\rundll32.exe

    Filesize

    80KB

    MD5

    8c26417a54dd62a928f7fdd4cf1b50da

    SHA1

    9299d17ef0d79bedeba44690e5d2b9ce815f691c

    SHA256

    0308e683adf1a8828d1ec1389b8788983734548fadd7ac5e7622e21514b07609

    SHA512

    4ae7cdc773e9466b72519441dd023d96f74859b6a5f4ce5768a269cb2f3056db8b507de0e146bc60ec51ffd4b85142af6f361fa9f17a36f84e5325f5d5416566

  • memory/4684-0-0x0000000000400000-0x0000000000415A00-memory.dmp

    Filesize

    86KB

  • memory/4684-13-0x0000000000400000-0x0000000000415A00-memory.dmp

    Filesize

    86KB