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Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    28/04/2024, 03:55

General

  • Target

    2024-04-28_edfa89c3010ca09184be57f88d0d51da_cryptolocker.exe

  • Size

    42KB

  • MD5

    edfa89c3010ca09184be57f88d0d51da

  • SHA1

    a7a33e23d9995af22518a388e4ba9bc8f29961a6

  • SHA256

    b2ad355f0f731a1bd2a879229d1d26c03692e8b8b9a9e4b1bd15489c03f20265

  • SHA512

    b682020cb3a085d80c761939cb01d990393fc9903fa25bcb2aa9a1bcb5922557a5770eb8820ebc917836faa29dbf9e410c0696c9d64f5586b197c1910d60d89a

  • SSDEEP

    768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAHa:bCDOw9aMDooc+vA6

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • 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\2024-04-28_edfa89c3010ca09184be57f88d0d51da_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-28_edfa89c3010ca09184be57f88d0d51da_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      PID:2164

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    42KB

    MD5

    286f6a65fccd38702720ecb0038ea24b

    SHA1

    f7b1c427dec12c3048d4089b2dcfccc8cbf418c3

    SHA256

    4f73430677554526067287d473a58535cee9ec435ad4892851890bd4eb75b561

    SHA512

    1db07e1af932cd1cdee72879b8e3f2e5a786a74344aa3bdd66aed7e1e98c1f5ef6db2bde5b432d054bf9e4c25fae86914148408f67d8ae6111ff1102b6fabe96

  • memory/1516-0-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB

  • memory/1516-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/1516-2-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/1516-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/1516-15-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB

  • memory/2164-16-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB

  • memory/2164-18-0x00000000020A0000-0x00000000020A6000-memory.dmp

    Filesize

    24KB

  • memory/2164-25-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB