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Analysis

  • max time kernel
    135s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/05/2024, 05:14

General

  • Target

    2024052150acfb281c8fa40cfd4794a3d0926d64cryptolocker.exe

  • Size

    64KB

  • MD5

    50acfb281c8fa40cfd4794a3d0926d64

  • SHA1

    ee1c9c744831b591d76f1164b479ceabd33fcbbd

  • SHA256

    ef1008aa00ddef8aeb642996e2bfb8925374171ab6917d993d4b8fef79017fd6

  • SHA512

    cc7568c82442f0a4a0b514dae8c390b4123c9771f084b0255666bc8ab770c77cfb3054a0ff3f2f0773d31740d9fdd066d8f1f618e9bf9412cb55f995f3be65da

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMTIzY9:TCjsIOtEvwDpj5HE/OUHnSMm

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 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024052150acfb281c8fa40cfd4794a3d0926d64cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024052150acfb281c8fa40cfd4794a3d0926d64cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5116
    • 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:4220

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    64KB

    MD5

    80d33cbc21dabca75933063b8ddaebac

    SHA1

    dde07107f998e7a45e0b6db0c5a4617c841d223a

    SHA256

    293f9666bf6057ae996c894b6738c4bb0fcf4583ec82ba3f85c98fa4e5ce4aba

    SHA512

    95c531077796075da3c2f58d522db3a4ae511693d7a3755c285878040606ea1621aec1b923c040abf368e75c4f3043f61c475a7c0d9e8893114923b27cfa4f77

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/4220-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4220-20-0x0000000000670000-0x0000000000676000-memory.dmp

    Filesize

    24KB

  • memory/4220-21-0x00000000006F0000-0x00000000006F6000-memory.dmp

    Filesize

    24KB

  • memory/4220-49-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/5116-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/5116-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/5116-2-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/5116-9-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/5116-18-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB