Analysis

  • max time kernel
    142s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-08-2023 13:01

General

  • Target

    a05f034f2e9d9f64645b91c10485036f_cryptolocker_JC.exe

  • Size

    76KB

  • MD5

    a05f034f2e9d9f64645b91c10485036f

  • SHA1

    dd72f92a602e2de04a2b5da15a1d12f0e5d648f7

  • SHA256

    4bd8df6b06556459f77f5091bbe362e9108640376b305b071cc3e5420c103ef1

  • SHA512

    c616abfd0bf20697a5bc1b29145f5aba9e3d55d80e164fe120e25113b9fe72139f3c3ae4cba8d7fac56ec6d55e1bdb6cf27b6b5b2993b9248de21bbb58a2721f

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMn:TCjsIOtEvwDpj5HE/OUHnSMZ

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\a05f034f2e9d9f64645b91c10485036f_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\a05f034f2e9d9f64645b91c10485036f_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:576
    • 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:3476

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    76KB

    MD5

    5c8b241ee92fa8f804b5681bd98661db

    SHA1

    f5f3aa81ce0888355e2bd7e91b65ea13207f0ed9

    SHA256

    f7f3376a180e40cca95e695eaef2d8558cbf6eaaf20d435184e3bcd41df6db76

    SHA512

    4dda4d107190de22a47faa8e1b89e280f1a0cd8edba5623a04c815a06bda33cf0c328bdba1597ea6fb2afdb40a0a3cb9de48d69bf69b8ed319949140ddd79ef0

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

    Filesize

    76KB

    MD5

    5c8b241ee92fa8f804b5681bd98661db

    SHA1

    f5f3aa81ce0888355e2bd7e91b65ea13207f0ed9

    SHA256

    f7f3376a180e40cca95e695eaef2d8558cbf6eaaf20d435184e3bcd41df6db76

    SHA512

    4dda4d107190de22a47faa8e1b89e280f1a0cd8edba5623a04c815a06bda33cf0c328bdba1597ea6fb2afdb40a0a3cb9de48d69bf69b8ed319949140ddd79ef0

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

    Filesize

    76KB

    MD5

    5c8b241ee92fa8f804b5681bd98661db

    SHA1

    f5f3aa81ce0888355e2bd7e91b65ea13207f0ed9

    SHA256

    f7f3376a180e40cca95e695eaef2d8558cbf6eaaf20d435184e3bcd41df6db76

    SHA512

    4dda4d107190de22a47faa8e1b89e280f1a0cd8edba5623a04c815a06bda33cf0c328bdba1597ea6fb2afdb40a0a3cb9de48d69bf69b8ed319949140ddd79ef0

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/576-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/576-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/576-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/576-3-0x0000000000610000-0x0000000000616000-memory.dmp

    Filesize

    24KB

  • memory/576-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3476-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3476-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/3476-48-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB