Analysis

  • max time kernel
    127s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/08/2023, 16:41

General

  • Target

    bf960c93f14677fd48c6448e23b1164e_cryptolocker_JC.exe

  • Size

    74KB

  • MD5

    bf960c93f14677fd48c6448e23b1164e

  • SHA1

    a52bb539d9f349012e0682d4aa9553370c4e4528

  • SHA256

    f0277571c58b9654905c81e97d66177f574bea37b9c0e3eeb0186642588f978b

  • SHA512

    a24dc5e3bca5b3fe054f44d6ffbc480c400164bff5fc8cbd00d1f868c0278b6b761d05e3951fb198ed6891db1e8eede618c0b22b45d02bbaff20c98c29f0f46c

  • SSDEEP

    1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWaw:vCjsIOtEvwDpj5H9YvQd2s

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\bf960c93f14677fd48c6448e23b1164e_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\bf960c93f14677fd48c6448e23b1164e_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5040
    • 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:5036

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          74KB

          MD5

          1c95d3b6e67807d7453c7be747a75724

          SHA1

          204aad5de99a14b128fe66443de68da97801869e

          SHA256

          44a50f55bacad5a868e5df0ff8b0a4098919363862131b66df39c888dc3e26c3

          SHA512

          a3a896cb70c14ae64652fd07f1973816a4b57b05102a307187d06f574a1c697c0c1e1472bbb40589ae58f525c70bb3a8075bd862b4e0eefefbf6bd4069268ef2

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

          Filesize

          74KB

          MD5

          1c95d3b6e67807d7453c7be747a75724

          SHA1

          204aad5de99a14b128fe66443de68da97801869e

          SHA256

          44a50f55bacad5a868e5df0ff8b0a4098919363862131b66df39c888dc3e26c3

          SHA512

          a3a896cb70c14ae64652fd07f1973816a4b57b05102a307187d06f574a1c697c0c1e1472bbb40589ae58f525c70bb3a8075bd862b4e0eefefbf6bd4069268ef2

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

          Filesize

          74KB

          MD5

          1c95d3b6e67807d7453c7be747a75724

          SHA1

          204aad5de99a14b128fe66443de68da97801869e

          SHA256

          44a50f55bacad5a868e5df0ff8b0a4098919363862131b66df39c888dc3e26c3

          SHA512

          a3a896cb70c14ae64652fd07f1973816a4b57b05102a307187d06f574a1c697c0c1e1472bbb40589ae58f525c70bb3a8075bd862b4e0eefefbf6bd4069268ef2

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/5036-18-0x0000000002140000-0x0000000002146000-memory.dmp

          Filesize

          24KB

        • memory/5036-17-0x0000000002040000-0x0000000002046000-memory.dmp

          Filesize

          24KB

        • memory/5040-0-0x00000000006F0000-0x00000000006F6000-memory.dmp

          Filesize

          24KB

        • memory/5040-1-0x00000000006F0000-0x00000000006F6000-memory.dmp

          Filesize

          24KB

        • memory/5040-2-0x0000000000710000-0x0000000000716000-memory.dmp

          Filesize

          24KB