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Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    23/01/2024, 18:42

General

  • Target

    2024-01-23_00531770a79e57dab01611817e739289_cryptolocker.exe

  • Size

    78KB

  • MD5

    00531770a79e57dab01611817e739289

  • SHA1

    60164b534d264053be6b5c2255035fcc454faba9

  • SHA256

    695a54a5aa9e8bc3d0bbed4af380fd7b6764721e9942023a439373c7de117edd

  • SHA512

    c1e131efef10108ba227e9e5fe23d33dda46a816083c47580284a824e537b86974d406ab6d6739b739550df91bbcf472a04d50040e79d286bf4c79d2f30f9814

  • SSDEEP

    768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7pBlqrr1HBJooSeKzu1adyBM:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky2

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-23_00531770a79e57dab01611817e739289_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-23_00531770a79e57dab01611817e739289_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2088
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2660

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    78KB

    MD5

    20a50dace6337ab8c138bbe08ccfec58

    SHA1

    398e99d77c3ea8680f86d3403a99461534bb3a01

    SHA256

    874a10729342b0143f16d9016a9a50edf23a8709119a18a8724417c709641846

    SHA512

    0271a50a480945cb39e4dfdf728e19d1fe820df7861fbd05a56cb985533cae754be131ffaed993cb29dd0da0d77d0d7036995795c6edf0c5514e8e8783213fc3

  • memory/2088-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2088-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2088-2-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/2088-4-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2088-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2660-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2660-19-0x00000000001E0000-0x00000000001E6000-memory.dmp

    Filesize

    24KB

  • memory/2660-18-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/2660-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB