Analysis

  • max time kernel
    142s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-08-2023 05:25

General

  • Target

    msvcr100.dll

  • Size

    752KB

  • MD5

    67ec459e42d3081dd8fd34356f7cafc1

  • SHA1

    1738050616169d5b17b5adac3ff0370b8c642734

  • SHA256

    1221a09484964a6f38af5e34ee292b9afefccb3dc6e55435fd3aaf7c235d9067

  • SHA512

    9ed1c106df217e0b4e4fbd1f4275486ceba1d8a225d6c7e47b854b0b5e6158135b81be926f51db0ad5c624f9bd1d09282332cf064680dc9f7d287073b9686d33

  • SSDEEP

    12288:fQmCy3NeRjkpQmj3oaMtQqjoygfXq3kon9IlbgaOxQdVJJ6j5EBKX8hR5:ImCy3VQs9MtLjTgfa3kon9FaOdEz5

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcr100.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3720
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcr100.dll,#1
      2⤵
        PID:3788
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3788 -s 600
          3⤵
          • Program crash
          PID:4644
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3788 -ip 3788
      1⤵
        PID:2740

      Network

      MITRE ATT&CK Matrix

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      Downloads