Analysis

  • max time kernel
    133s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/08/2024, 18:25

General

  • Target

    $1/1337/msvcr100.dll

  • Size

    740KB

  • MD5

    0e8888aadab9669d06f55767f2ccaf7b

  • SHA1

    4a1917b4fbda7705782216594fc912e41e76465a

  • SHA256

    43af6d081b5ded0bd3b1b269719b3a63400da25a805d46d579c4dd2a77861ba1

  • SHA512

    66aea1fb8e3e205ae336c0d4dfc8c7a0b635b2f58be893bae47c04e55c128cec2c95cd377fea5ea33befe86b3af7e9dbf35dedd5a9aa5a8bca8b2dbdc5e55ad7

  • SSDEEP

    12288:Qhr4SCbSPtgWsDm8E+PYh+gQkiTYopDPjPATlnnueBvSOfuCaogBmoy34m:rSPtgWsd9AhbATYoJPjYTgwGCiBmoy3H

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • 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\$1\1337\msvcr100.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3600
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$1\1337\msvcr100.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2252
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2252 -s 600
        3⤵
        • Program crash
        PID:4364
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2252 -ip 2252
    1⤵
      PID:3868

    Network

          MITRE ATT&CK Enterprise v15

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          Downloads