Analysis

  • max time kernel
    1690s
  • max time network
    1168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-03-2024 16:22

General

  • Target

    Microsoft.VC142.CRT/concrt140.dll

  • Size

    237KB

  • MD5

    9ad549c121108b3b1408a30bee325d08

  • SHA1

    898ffc728087861e619dababd8e65cc902276d06

  • SHA256

    263975e4f5afc90e91f9f601080b92c9fbc5e471132f63ad01c6c4f99b33b83a

  • SHA512

    9a9005acf2af86d6a0a95773e968d98e90b7e71e8e71d58949ff51aad49050dca57d94a19671b1b5026bd74e7b627f31d0c8a50bb66ab740d629022c3a95d579

  • SSDEEP

    6144:aLy1UNAZHA2nSG5LbEcutDsSaqiOHYb836TLLOeHFQyS9uLms12z/NpJ9yne:2hkH0Yb83KLxmuLmdzoe

Score
3/10

Malware Config

Signatures

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

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\Microsoft.VC142.CRT\concrt140.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1116
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\Microsoft.VC142.CRT\concrt140.dll,#1
      2⤵
        PID:3532
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3532 -s 604
          3⤵
          • Program crash
          PID:3200
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3532 -ip 3532
      1⤵
        PID:116
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
        1⤵
          PID:3840
        • C:\Windows\System32\svchost.exe
          C:\Windows\System32\svchost.exe -k UnistackSvcGroup
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4684

        Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/4684-1-0x000001C87C580000-0x000001C87C590000-memory.dmp

          Filesize

          64KB

        • memory/4684-17-0x000001C87C680000-0x000001C87C690000-memory.dmp

          Filesize

          64KB

        • memory/4684-33-0x000001C87C9F0000-0x000001C87C9F1000-memory.dmp

          Filesize

          4KB

        • memory/4684-35-0x000001C87CA20000-0x000001C87CA21000-memory.dmp

          Filesize

          4KB

        • memory/4684-36-0x000001C87CA20000-0x000001C87CA21000-memory.dmp

          Filesize

          4KB

        • memory/4684-37-0x000001C87CB30000-0x000001C87CB31000-memory.dmp

          Filesize

          4KB