Windows 7 deprecation

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Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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
  • 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\a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe
    "C:\Users\Admin\AppData\Local\Temp\a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.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:2696
    • 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:2216

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\notepad¢¬.exe

    Filesize

    80KB

    MD5

    14f51023868912ae254970dd1b55bbdb

    SHA1

    f0ccd7b9c5286ba12a668fb526e81fe168a468e4

    SHA256

    a72d87b2713f73092996f817c717e213ad94a6662249e04138dcdbc993debde2

    SHA512

    70c71fcbc38c03e0bfa82b3f726c4caf728d9c390c5f3d2eb8044c4340284dd3e6e11af320048346dfc3c2cf3b492d5e44d4697ac46da58b7c7fc8e26fb5db3b

  • \Windows\system\rundll32.exe

    Filesize

    73KB

    MD5

    102f589b525b8e129d3d942ba0ee5b29

    SHA1

    30bbac74401479d2cb903f33375a539d00076b54

    SHA256

    380494b4863df8445d532a3b1631134116ce1bcd6d71cdc0b325823b66ade3bb

    SHA512

    cdbb42eb553ad981dc9e98dce0199dd8ae474917a400447890ec703cfddb011053bf06c1bc21ddd4c0e031cf47da4d80b17f408bbf990caafc4bf7405ab4dd83

  • memory/2216-20-0x0000000000400000-0x0000000000415A00-memory.dmp

    Filesize

    86KB

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

    Filesize

    86KB

  • memory/2696-11-0x0000000000370000-0x0000000000386000-memory.dmp

    Filesize

    88KB

  • memory/2696-17-0x0000000000370000-0x0000000000386000-memory.dmp

    Filesize

    88KB

  • memory/2696-21-0x0000000000400000-0x0000000000415A00-memory.dmp

    Filesize

    86KB