Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    21/05/2024, 04:39

General

  • Target

    2024-05-21_35d2b798be45414354827aaf8e33a5b8_cryptolocker.exe

  • Size

    62KB

  • MD5

    35d2b798be45414354827aaf8e33a5b8

  • SHA1

    6a58e2f432cede271042e539ab366ff42e19658d

  • SHA256

    c4003466f341f9e36f3990bc13ee317c8b10a03209ced1b55a87c949b461d6bd

  • SHA512

    6dc61b635a37ccb519b2320b5ac13e8d1f2c0dfe582f90c9612672ce10f312dc881a6f3ec2786d61f9bf635bd0eca16e295e1b84b81d795f2cf09faecbb56869

  • SSDEEP

    768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG9Q:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWZ

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 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\2024-05-21_35d2b798be45414354827aaf8e33a5b8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-21_35d2b798be45414354827aaf8e33a5b8_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2128
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3020

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    62KB

    MD5

    59d443fe85080d9d95e096c5fba82c31

    SHA1

    49e6ee73d69e4c44aad8da73a724db620ef77fb0

    SHA256

    cfe5aa8095b146b95c2500c7e6e46b7bfd538598807c5e4e8b9fc2f5e290df8b

    SHA512

    9811df3e91937a6f13d2e20505ccbef29b837c9b76cbc8506df7b1437cec54d99a8b5905dd8447eb3e9ddd62b070943c30b52f89e1417a986c12b168a9d5d1bd

  • memory/2128-0-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2128-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/2128-3-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB

  • memory/2128-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/2128-15-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/3020-16-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

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

    Filesize

    24KB

  • memory/3020-18-0x00000000004A0000-0x00000000004A6000-memory.dmp

    Filesize

    24KB

  • memory/3020-26-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB