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Analysis

  • max time kernel
    95s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/09/2024, 17:11

General

  • Target

    CalendarExt.dll

  • Size

    356KB

  • MD5

    c17467514fc9788c65b6b4105c1f6f6b

  • SHA1

    3e8dbc3cf0db6fba94cf6723bace96a372fb8619

  • SHA256

    081a891776ba3fe26108c3d3bbd5aa7b6736a3bfbe0cbb6ecdc1344fbc55c10c

  • SHA512

    e1e9cee20d900ed89270464a61c3624cb8ff8d4e63dbf83ef42f37203a759eb313844ad3541d044162171a29015e16213f6139a17d860fcd6baa1a0171b20b82

  • SSDEEP

    6144:xrnZwuUVuRKx7LfkYKB8nqF9HKWEuA40VgLwAnpddu:PwuUswcYQiAHKWE7VgM+ddu

Score
3/10

Malware Config

Signatures

  • System Location Discovery: System Language Discovery 1 TTPs 1 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:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\CalendarExt.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5116
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\CalendarExt.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4556

Network

MITRE ATT&CK Enterprise v15

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Downloads