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Analysis

  • max time kernel
    135s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/05/2023, 01:04

General

  • Target

    MixSets.dll

  • Size

    520KB

  • MD5

    d65679092030c32f0cbb00fe634dbc6a

  • SHA1

    e9f618e04e8a0fc77870c8683c4c25bc854f2e61

  • SHA256

    ffee9f32cbd3af9925807b2c0fac0f172d7c73e20610717692f878b16b3cb348

  • SHA512

    431e865e1298042ec819952eb1263428781ac3bffcdc5d6af15c3977a5cb807d5c0ab1a4f3447e9d4d906aa3e45ffc594edfdf28d9dbffd8998e92b581a45fa5

  • SSDEEP

    12288:DILisczd8b40Cychde/q9pSARdh4JdV09ssFDMuK+:Dcczd8b0ycn9IJIss9MP+

Score
5/10

Malware Config

Signatures

  • Drops file in System32 directory 11 IoCs
  • Program crash 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\MixSets.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:100
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\MixSets.dll,#1
      2⤵
        PID:3168
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3168 -s 544
          3⤵
          • Program crash
          PID:4484
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3168 -s 792
          3⤵
          • Program crash
          PID:3044
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3168 -ip 3168
      1⤵
        PID:1696
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3168 -ip 3168
        1⤵
          PID:2020
        • C:\Windows\system32\mspaint.exe
          "C:\Windows\system32\mspaint.exe" "C:\Users\Admin\Desktop\PublishUpdate.jpe" /ForceBootstrapPaint3D
          1⤵
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          PID:2560
        • C:\Windows\System32\svchost.exe
          C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s DsSvc
          1⤵
          • Drops file in System32 directory
          PID:2304
        • C:\Windows\system32\OpenWith.exe
          C:\Windows\system32\OpenWith.exe -Embedding
          1⤵
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          PID:2952

        Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        • memory/2304-133-0x00000280E3260000-0x00000280E3270000-memory.dmp

          Filesize

          64KB

        • memory/2304-137-0x00000280E32A0000-0x00000280E32B0000-memory.dmp

          Filesize

          64KB

        • memory/2304-144-0x00000280EB570000-0x00000280EB571000-memory.dmp

          Filesize

          4KB

        • memory/2304-146-0x00000280EB5F0000-0x00000280EB5F1000-memory.dmp

          Filesize

          4KB

        • memory/2304-148-0x00000280EB5F0000-0x00000280EB5F1000-memory.dmp

          Filesize

          4KB

        • memory/2304-149-0x00000280EB680000-0x00000280EB681000-memory.dmp

          Filesize

          4KB

        • memory/2304-150-0x00000280EB680000-0x00000280EB681000-memory.dmp

          Filesize

          4KB

        • memory/2304-151-0x00000280EB690000-0x00000280EB691000-memory.dmp

          Filesize

          4KB

        • memory/2304-152-0x00000280EB690000-0x00000280EB691000-memory.dmp

          Filesize

          4KB