Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/06/2024, 19:42

General

  • Target

    2024-06-12_8d3cfaad93f68081466feb508ed7108c_cryptolocker.exe

  • Size

    63KB

  • MD5

    8d3cfaad93f68081466feb508ed7108c

  • SHA1

    ca05720cbb275e5c4e09d70a479151f02ed86f8e

  • SHA256

    0d4b827725f9f9e63e8514695117f00edc0fc394be81a97667daffdc454c1aa4

  • SHA512

    8826fae78b468390ea14d703b91b35b2adad5b48639f2291af494afc075ae4afdc27aec22e958356cf9645b78891ca1da7d706cf1c843b988ec4986f2cb30c06

  • SSDEEP

    1536:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWTAu:3WHsIOtEvwDpjoHYf

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • 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 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-12_8d3cfaad93f68081466feb508ed7108c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-12_8d3cfaad93f68081466feb508ed7108c_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5044
    • 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:1560

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          63KB

          MD5

          2ee5cd59b6dc4e86b124a8d10ab33d3b

          SHA1

          8538e62f9587c07d334982209fdd518439b26b82

          SHA256

          6e45a7544ba184ae4611c634df6a4f66cdfd86e09a2baa48fbacd95c34bfc445

          SHA512

          02e11d9b2b5815ce475e5fabde4f8b8ed7be961ea8b19ddf65b631cabe2387ec96fbbe2cbc604e2070c23a035c7c81c309d78755a09175222f5d27a60ab754db

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/1560-17-0x0000000000500000-0x000000000050B000-memory.dmp

          Filesize

          44KB

        • memory/1560-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

          Filesize

          24KB

        • memory/1560-21-0x00000000006E0000-0x00000000006E6000-memory.dmp

          Filesize

          24KB

        • memory/1560-47-0x0000000000500000-0x000000000050B000-memory.dmp

          Filesize

          44KB

        • memory/5044-0-0x0000000000500000-0x000000000050B000-memory.dmp

          Filesize

          44KB

        • memory/5044-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

          Filesize

          24KB

        • memory/5044-2-0x0000000002070000-0x0000000002076000-memory.dmp

          Filesize

          24KB

        • memory/5044-9-0x00000000005A0000-0x00000000005A6000-memory.dmp

          Filesize

          24KB

        • memory/5044-18-0x0000000000500000-0x000000000050B000-memory.dmp

          Filesize

          44KB