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Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/09/2024, 08:29

General

  • Target

    2024-09-07_f3f9360273c26f2af050025f233cf0c9_cryptolocker.exe

  • Size

    96KB

  • MD5

    f3f9360273c26f2af050025f233cf0c9

  • SHA1

    f8b93758b188a17a2985d925c722933757155e1c

  • SHA256

    3472c9512be9b11ba4a644ce0bfebaba18fdd8db25b12bc81eed32a3625834ff

  • SHA512

    92ad95c16226543cc1855ad9723154c368aac4597a68852c25aa94309b2421c714fd791af24557bbe84d46232cb1f9292804451155e208e911fe4f3103bcd4e6

  • SSDEEP

    1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpwqWsviPd:AnBdOOtEvwDpj6zv

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-07_f3f9360273c26f2af050025f233cf0c9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-07_f3f9360273c26f2af050025f233cf0c9_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3516

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    96KB

    MD5

    55a87fbe9cc25a5f0a4de8455c80d27f

    SHA1

    1e1afb7e72317d607fc89230e72bc717fdc67f6e

    SHA256

    33c85ce316fa34c2e26b74d242ff4cc1f44c9867cebc40dcdf349a50ce9ccb3c

    SHA512

    135449568ab750279f0d9d7244afd0e30762ee895594e11ecff5109047d59e1171c628f869fb431a7149499cb22da89daf9b306cb9246cf16ac4089c9b684390

  • memory/1728-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/1728-1-0x00000000007B0000-0x00000000007B6000-memory.dmp

    Filesize

    24KB

  • memory/1728-2-0x00000000007B0000-0x00000000007B6000-memory.dmp

    Filesize

    24KB

  • memory/1728-3-0x00000000007D0000-0x00000000007D6000-memory.dmp

    Filesize

    24KB

  • memory/1728-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3516-19-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/3516-20-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/3516-26-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB