Windows 7 deprecation

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Analysis

  • max time kernel
    120s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/09/2024, 11:39

General

  • Target

    805427e8a77b8d47275b0b7642c3020f5360fe54eabd91acb0bfd7a43fe25e97N.exe

  • Size

    76KB

  • MD5

    b23289be2ac2fa11e52bb507939e6130

  • SHA1

    5e2351e78f3e59010779f6ffe927b83b037d782d

  • SHA256

    805427e8a77b8d47275b0b7642c3020f5360fe54eabd91acb0bfd7a43fe25e97

  • SHA512

    0815c12763044987124d036ac0ff4dd0c040cb8ea734f7edf143c69c8b9ac3de47a2504bafe4494a9c159909a6cd5154df343a66ffe4ccde8737ebb394e2fe26

  • SSDEEP

    1536:86RAo0ej2d6rnJwwvlNlIUBvsI7hrhEh9cpDN/qhAvP3OChhW4dI0h4HCIzhUvTh:xAo1lOwvlNlXBvsI7hrhEh9cpDN/qhAz

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\805427e8a77b8d47275b0b7642c3020f5360fe54eabd91acb0bfd7a43fe25e97N.exe
    "C:\Users\Admin\AppData\Local\Temp\805427e8a77b8d47275b0b7642c3020f5360fe54eabd91acb0bfd7a43fe25e97N.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3596
    • C:\Windows\microsofthelp.exe
      "C:\Windows\microsofthelp.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:1636

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\microsofthelp.exe

    Filesize

    76KB

    MD5

    0d3787a54f532f933c3d8326bafb1996

    SHA1

    43da20ad5fc9ecdfb5be6437d4715f277411d4be

    SHA256

    68b54e79fcb8b4a29949bfd461b09d9f1d1855f1f70fa0dd6eca751c76156549

    SHA512

    07dd68021836121a48aef3bb8f4ff1985700206c709997555f67e443f8c024ff2caea3eeb4b141fcb1e99a399b3d672c062e2cd1858ea5605c537aa182e5eafe

  • memory/1636-6-0x0000000000400000-0x000000000040F000-memory.dmp

    Filesize

    60KB

  • memory/3596-0-0x0000000000400000-0x000000000040F000-memory.dmp

    Filesize

    60KB

  • memory/3596-4-0x0000000000400000-0x000000000040F000-memory.dmp

    Filesize

    60KB