Analysis

  • max time kernel
    138s
  • max time network
    108s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-07-2024 20:11

General

  • Target

    yrcvb.dll

  • Size

    11KB

  • MD5

    2072ef8fa8d7b21c6710dd45329ed960

  • SHA1

    c37e442611dca9cba6af656c1f570432eb1f8d34

  • SHA256

    74c0cbf5666dfdd57165bf6ec429d69b1b471ee10d9451d059099c9a4af0453a

  • SHA512

    198aacdc2178a5ce7cbf834346f7c97b9c95f19796879281472c9c582bae2a7cb850e37d76b553f84601563ff2d225b10db26213c4f12eb5f0b3392d93585b61

  • SSDEEP

    192:fxS0MwFVGomA2mBilFlfFHavKRB5N83c35cIbaJxJFCGHJP:wwjj4oilFHavKRh865cIb6H

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\yrcvb.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1976
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\yrcvb.dll,#1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:4464
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4464 -s 696
        3⤵
        • Program crash
        PID:4580
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4464 -ip 4464
    1⤵
      PID:2520

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4464-0-0x0000000075680000-0x0000000075686000-memory.dmp

      Filesize

      24KB

    • memory/4464-1-0x0000000075680000-0x0000000075686000-memory.dmp

      Filesize

      24KB