Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    12/06/2024, 15:31

General

  • Target

    2024-06-12_d93ec1ced0b5f69c389fd03d045de855_cryptolocker.exe

  • Size

    90KB

  • MD5

    d93ec1ced0b5f69c389fd03d045de855

  • SHA1

    7098d420990a15862be8f737738d3bb17b3ba2e8

  • SHA256

    befb1365ce83ffd7d66fed4ce9495cad45f33029ce9a661f981ad036546a7702

  • SHA512

    3cac11bbeeb46543bb914349ae7f23e5da00814f5816d8ce2fcbfc3be20295f9c60d67db950daed4f754a3a8fcc110055ba6d006dfb8da83d358ff239ef6db1d

  • SSDEEP

    1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAA/Nz:n6a+1SEOtEvwDpjYYvQd2Pq

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\2024-06-12_d93ec1ced0b5f69c389fd03d045de855_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-12_d93ec1ced0b5f69c389fd03d045de855_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1868
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3020

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    90KB

    MD5

    ec75422326eeb960e3eb62f6f1a63aed

    SHA1

    9e1f20c444f5cb3c4b550b58f0d96fbd543e0916

    SHA256

    cccd250bacda6dee0b04f187ce96d4fbbd40384addcda3f5b88be56decdee88a

    SHA512

    e856894119e23ba3a5f6ff355350a64ae16b719b15acda72a14a23bbfa3948dd1322bda73a086134a1cde186d9b045ca2e6543479c383d06b37d2b972fc9f7a8

  • memory/1868-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1868-1-0x0000000000420000-0x0000000000426000-memory.dmp

    Filesize

    24KB

  • memory/1868-2-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB

  • memory/1868-9-0x0000000000420000-0x0000000000426000-memory.dmp

    Filesize

    24KB

  • memory/1868-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3020-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3020-25-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/3020-18-0x0000000000340000-0x0000000000346000-memory.dmp

    Filesize

    24KB

  • memory/3020-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB