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Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    19/04/2024, 04:11

General

  • Target

    2024-04-19_860c9bc7a9bd2d9f9d3bccae00c64ea0_cryptolocker.exe

  • Size

    99KB

  • MD5

    860c9bc7a9bd2d9f9d3bccae00c64ea0

  • SHA1

    ffc89d4b4e6f4c7330440f291b46f66da9215d59

  • SHA256

    14504a6244e43cf440be0433f129d1402a4b348b228f875655dd36ed9567136d

  • SHA512

    a3b92b62afd0bac5443e32ea33b8588c011cf9fe2f91dd07c55e89275a773f87e3e96755115d0b501e8c52a223c19000445a4c78c15c6d65129025b072f6d093

  • SSDEEP

    1536:z6QFElP6n+gKmddpMOtEvwDpj3GYQbbr/BKiXv:z6a+CdOOtEvwDpjcb

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\2024-04-19_860c9bc7a9bd2d9f9d3bccae00c64ea0_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-19_860c9bc7a9bd2d9f9d3bccae00c64ea0_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2356
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3016

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    99KB

    MD5

    fa9cdef428984e4229593a9a72609a39

    SHA1

    cad32add42cc7b26beca787a1f0fe69f3bef0ac7

    SHA256

    22eb187f0a9b274b984ed7c2be8fadac3fbefce7913a71715207137855590dfa

    SHA512

    fca59408997e76a411a86b75d187a8927a7bf65767461c7dcde433505cd62922944929acb79ae9baa6471d0d73e41df8f1dcbdef3ee10caa76272008f7d49361

  • memory/2356-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2356-1-0x0000000000420000-0x0000000000426000-memory.dmp

    Filesize

    24KB

  • memory/2356-2-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB

  • memory/2356-9-0x0000000000420000-0x0000000000426000-memory.dmp

    Filesize

    24KB

  • memory/2356-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2356-13-0x0000000001FA0000-0x0000000001FB0000-memory.dmp

    Filesize

    64KB

  • memory/3016-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3016-19-0x0000000000340000-0x0000000000346000-memory.dmp

    Filesize

    24KB

  • memory/3016-26-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/3016-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB