Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    18/03/2024, 21:25

General

  • Target

    2024-03-18_1c4838eddedbada5ff0db04685b12c36_cryptolocker.exe

  • Size

    80KB

  • MD5

    1c4838eddedbada5ff0db04685b12c36

  • SHA1

    52cb5fc6db6ca71c527cae5736688e3972dcd8a9

  • SHA256

    8aa0ac24743e423e0647477a5d793169d43ad5c64c7e6d0563462baa50d58478

  • SHA512

    39eb65a86417c28d71f8c1515b5835d3103064aa58d8e1d5234b52725ed5a1698f0baf20e17358e805dde242d0a196b7c687de84a4fe2d99bf4cc8599b61a3a6

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1kyJS1Y:zCsanOtEvwDpj+

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 6 IoCs
  • UPX dump on OEP (original entry point) 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 6 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\2024-03-18_1c4838eddedbada5ff0db04685b12c36_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-18_1c4838eddedbada5ff0db04685b12c36_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2616

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    80KB

    MD5

    9055c2c88b0426ab302a0c4baa17f560

    SHA1

    2a1f28fcc88cc00099c3f0e549c8b4327cb7b10a

    SHA256

    ccc8677e27df0b0bab2db140a0944db61c416acec77cd8bde714784c82ed306f

    SHA512

    55f74f4180b6f22e13145852c829e10256e04d211416dff6362e3b1c6f6918cc26727ae80d960381527ed47fc637df5470bcfcd0a44e0d147a042eaacdf59bc2

  • memory/2616-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2616-19-0x00000000004C0000-0x00000000004C6000-memory.dmp

    Filesize

    24KB

  • memory/2616-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2616-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2744-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2744-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/2744-2-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

    Filesize

    24KB

  • memory/2744-9-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/2744-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2744-12-0x00000000023A0000-0x00000000023B0000-memory.dmp

    Filesize

    64KB