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Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    12/10/2024, 03:13

General

  • Target

    2024-10-12_b941e775587787950f2a8ff45e4a644c_cryptolocker.exe

  • Size

    46KB

  • MD5

    b941e775587787950f2a8ff45e4a644c

  • SHA1

    71e309dbc78ec39af98b90eaf731d974d59aface

  • SHA256

    27c5fd48da2ebc81ff9a466ea648c35b4013428bf80f31de5e8bb73af3df03cb

  • SHA512

    2ba6d69bf036034bcb77917bac8c8cd23c620472204d9ae9c30d07ce15f4cf9736f6180be558cfbf3f64b856dd3ad925995324d02c60f479e7bcaeaa3a1509a2

  • SSDEEP

    768:bao/2n1TCraU6GD1a4X1XOQ69zbjlAAX5e9zk:bF/y2lFizbR9Xwzk

Score
7/10

Malware Config

Signatures

  • 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).

  • 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 UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-12_b941e775587787950f2a8ff45e4a644c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-12_b941e775587787950f2a8ff45e4a644c_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2852
    • C:\Users\Admin\AppData\Local\Temp\rewok.exe
      "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of UnmapMainImage
      PID:2908

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    46KB

    MD5

    cb9a6a6ccab5108a7ef8e6f608c89127

    SHA1

    13ce33fe6d820c091400dd5002c49d6e21690840

    SHA256

    cbb04cccc31d8b6105329f30cfac9dce0a8280c24dd85c5b5490a9e34e15271d

    SHA512

    b6128b6f682a57b4353e68ae1a405bf483b4c1cd63ca1c6d6b4e60a28b699433bea52e6f20176b5ab9425fa12e67630ec7a10de5df5bea3752da2a31934a296b

  • memory/2852-0-0x00000000002A0000-0x00000000002A6000-memory.dmp

    Filesize

    24KB

  • memory/2852-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2852-8-0x00000000002A0000-0x00000000002A6000-memory.dmp

    Filesize

    24KB

  • memory/2908-16-0x0000000000380000-0x0000000000386000-memory.dmp

    Filesize

    24KB