Analysis

  • max time kernel
    141s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230824-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230824-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/08/2023, 19:12

General

  • Target

    8b08a527905ef9128eb609da616c4ea3_cryptolocker_JC.exe

  • Size

    88KB

  • MD5

    8b08a527905ef9128eb609da616c4ea3

  • SHA1

    c6edbf6a963e42d638765c38cb6814003cff34de

  • SHA256

    5f993af590c80fd5722a4ad55994c249097766ba38be23351081138b94eaceea

  • SHA512

    78684327d15d4cbb934a9f0e76c601619df383a704b0ff42012359d7bedf8b339be586bba959323f2b5482153484d795f1e993b289660bc2e2e6832d7650c95a

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mD:xj+VGMOtEvwDpjubwQEIiVmD

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b08a527905ef9128eb609da616c4ea3_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\8b08a527905ef9128eb609da616c4ea3_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3656
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:5064

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\misid.exe

          Filesize

          89KB

          MD5

          69103bf3e9217570cfe64a60c0fe9d88

          SHA1

          058cfdd4c751c1640d2a50755a287013d9d75dc8

          SHA256

          d857eedd993b84fbd44c25c5729748dd1b7d54d658be0c241b5368007af359b4

          SHA512

          b6f017f23458145f77cb3582a7c08a6f4992609e18630256a16a8cfe3e96161842d1d8861cf84dfd683e9c9f0a4fb7fab035817d78a580d6a812034d652f165d

        • C:\Users\Admin\AppData\Local\Temp\misid.exe

          Filesize

          89KB

          MD5

          69103bf3e9217570cfe64a60c0fe9d88

          SHA1

          058cfdd4c751c1640d2a50755a287013d9d75dc8

          SHA256

          d857eedd993b84fbd44c25c5729748dd1b7d54d658be0c241b5368007af359b4

          SHA512

          b6f017f23458145f77cb3582a7c08a6f4992609e18630256a16a8cfe3e96161842d1d8861cf84dfd683e9c9f0a4fb7fab035817d78a580d6a812034d652f165d

        • C:\Users\Admin\AppData\Local\Temp\misid.exe

          Filesize

          89KB

          MD5

          69103bf3e9217570cfe64a60c0fe9d88

          SHA1

          058cfdd4c751c1640d2a50755a287013d9d75dc8

          SHA256

          d857eedd993b84fbd44c25c5729748dd1b7d54d658be0c241b5368007af359b4

          SHA512

          b6f017f23458145f77cb3582a7c08a6f4992609e18630256a16a8cfe3e96161842d1d8861cf84dfd683e9c9f0a4fb7fab035817d78a580d6a812034d652f165d

        • C:\Users\Admin\AppData\Local\Temp\misids.exe

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/3656-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/3656-1-0x00000000021B0000-0x00000000021B6000-memory.dmp

          Filesize

          24KB

        • memory/3656-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

          Filesize

          24KB

        • memory/3656-3-0x0000000002050000-0x0000000002056000-memory.dmp

          Filesize

          24KB

        • memory/3656-10-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/5064-20-0x00000000007C0000-0x00000000007C6000-memory.dmp

          Filesize

          24KB

        • memory/5064-19-0x0000000000690000-0x0000000000696000-memory.dmp

          Filesize

          24KB

        • memory/5064-46-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB