Analysis

  • max time kernel
    139s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/01/2024, 05:49

General

  • Target

    2024-01-09_0a2afab0f88ff9a808bc6c6a5ca7a39f_cryptolocker.exe

  • Size

    39KB

  • MD5

    0a2afab0f88ff9a808bc6c6a5ca7a39f

  • SHA1

    2b00772b6b728166d70cf3bba9a9091a4fbc59ff

  • SHA256

    cffe797104933c0f928d725a246d87ca105af8a3422b5220cd98b0a6cb4059da

  • SHA512

    bac149c7823208266867a167710eed4922edbf35a993312cf6e537d744febfb5b0a038707338231b603368eb8accac7bc8fc2288c0e41f6a62e0253132de1459

  • SSDEEP

    384:60VkMq01bJ3wtEwPS8HLEh+Jagz+3be+26aIIcVRYpetOOtEvwDpjqIGRmdHzOOp:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/r

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-09_0a2afab0f88ff9a808bc6c6a5ca7a39f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-09_0a2afab0f88ff9a808bc6c6a5ca7a39f_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3852
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:4524

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          39KB

          MD5

          9a93c9d84119048102a5777e8e18b1bb

          SHA1

          1d75c7569e62df1c5303e615780d2452a3ef5d7f

          SHA256

          3264a536506a38e9c8599c79f2ab92ae447ef534752a10d310216ecfa3b99b37

          SHA512

          d0a9f96ce75fb784e27686364cffe6421015415fc08f669dda029e95deb18b2b086c4ced11f4b2b0988de62bc017082b3eda75bcff9ff501aae1866a303c8d56

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/3852-0-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/3852-1-0x0000000000870000-0x0000000000876000-memory.dmp

          Filesize

          24KB

        • memory/3852-2-0x0000000000870000-0x0000000000876000-memory.dmp

          Filesize

          24KB

        • memory/3852-3-0x0000000000890000-0x0000000000896000-memory.dmp

          Filesize

          24KB

        • memory/3852-10-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/4524-19-0x0000000000860000-0x0000000000866000-memory.dmp

          Filesize

          24KB

        • memory/4524-25-0x0000000000660000-0x0000000000666000-memory.dmp

          Filesize

          24KB

        • memory/4524-26-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB