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Analysis

  • max time kernel
    87s
  • max time network
    204s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241023-en
  • resource tags

    arch:x64arch:x86image:win11-20241023-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07/01/2025, 08:02

General

  • Target

    msimg32.dll

  • Size

    31.4MB

  • MD5

    89251cc68b1e4f944c70bf906911ecae

  • SHA1

    98b65fccf300e4a85575f1a62e7b3bc54ef0b910

  • SHA256

    4a80e0e5d4822b96fb9bd71c0f82bafad1661828af2d7004d4429ffa3b9ef6d2

  • SHA512

    41be121404640198bb1bb21a13e294b658d7f08a8f70747b9ca115c229a288aba61fa58d776c845e46e0bb5f3be40a6e7cf5bd491a0688df2d5cb86fb53176aa

  • SSDEEP

    393216:Ue3INPM39bBqsr7+0Xx93by0WWZ2z8BCBkYplJIdqaw:UeYNM39bBFrVx93bdZ2k8Odqaw

Score
10/10

Malware Config

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
    1⤵
      PID:2784
      • C:\Windows\SysWOW64\svchost.exe
        "C:\Windows\System32\svchost.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:4932
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\msimg32.dll,#1
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4808
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe C:\Users\Admin\AppData\Local\Temp\msimg32.dll,#1
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3000
        • C:\Windows\SysWOW64\rundll32.exe
          "C:\Windows\SysWOW64\rundll32.exe"
          3⤵
          • Suspicious use of NtCreateUserProcessOtherParentProcess
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1904
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1904 -s 420
            4⤵
            • Program crash
            PID:2864
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "FortinetDLP" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\CrashRpt231603.dll",EntryPoint /f & exit
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1828
          • C:\Windows\SysWOW64\reg.exe
            reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "FortinetDLP" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\CrashRpt231603.dll",EntryPoint /f
            4⤵
            • Adds Run key to start application
            • System Location Discovery: System Language Discovery
            PID:2428
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1904 -ip 1904
      1⤵
        PID:1408

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1904-10-0x0000000002430000-0x0000000002830000-memory.dmp

        Filesize

        4.0MB

      • memory/1904-12-0x00007FFFE22C0000-0x00007FFFE24C9000-memory.dmp

        Filesize

        2.0MB

      • memory/1904-2-0x00000000005A0000-0x0000000000621000-memory.dmp

        Filesize

        516KB

      • memory/1904-9-0x0000000002430000-0x0000000002830000-memory.dmp

        Filesize

        4.0MB

      • memory/1904-5-0x00000000005A0000-0x0000000000621000-memory.dmp

        Filesize

        516KB

      • memory/1904-3-0x00000000005A0000-0x0000000000621000-memory.dmp

        Filesize

        516KB

      • memory/1904-23-0x0000000002430000-0x0000000002830000-memory.dmp

        Filesize

        4.0MB

      • memory/1904-11-0x0000000002430000-0x0000000002830000-memory.dmp

        Filesize

        4.0MB

      • memory/1904-13-0x0000000002430000-0x0000000002830000-memory.dmp

        Filesize

        4.0MB

      • memory/1904-15-0x00007FFFE22C1000-0x00007FFFE23EA000-memory.dmp

        Filesize

        1.2MB

      • memory/1904-4-0x00000000005A0000-0x0000000000621000-memory.dmp

        Filesize

        516KB

      • memory/1904-16-0x0000000075650000-0x00000000758A2000-memory.dmp

        Filesize

        2.3MB

      • memory/3000-1-0x0000000011E9D000-0x0000000011EE1000-memory.dmp

        Filesize

        272KB

      • memory/3000-0-0x0000000010000000-0x0000000012915000-memory.dmp

        Filesize

        41.1MB

      • memory/3000-6-0x0000000011E23000-0x0000000011E3C000-memory.dmp

        Filesize

        100KB

      • memory/4932-17-0x0000000001060000-0x000000000106A000-memory.dmp

        Filesize

        40KB

      • memory/4932-19-0x00000000016E0000-0x0000000001AE0000-memory.dmp

        Filesize

        4.0MB

      • memory/4932-20-0x00007FFFE22C0000-0x00007FFFE24C9000-memory.dmp

        Filesize

        2.0MB

      • memory/4932-22-0x0000000075650000-0x00000000758A2000-memory.dmp

        Filesize

        2.3MB