Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    11/06/2024, 02:32

General

  • Target

    2024-06-11_8884909fc08a1b94723e63ebbd6f2ad3_cryptolocker.exe

  • Size

    42KB

  • MD5

    8884909fc08a1b94723e63ebbd6f2ad3

  • SHA1

    ece6ddd4c4947ede1e7370259402e3ce534b6fa1

  • SHA256

    ad6c0e9b894b822a20759f6cf2aef48886bafdcc665fc302a08c8d9bae698d0d

  • SHA512

    bfbf72ea73cb83b4f92758b10986d835ac40a1dc57adb0de6040d9b8ed6384244386f2197962ba690ac360778f967798826b37b66489e50fa40f3e6660876b1e

  • SSDEEP

    768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAqjru:bCDOw9aMDooc+vAqjK

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\2024-06-11_8884909fc08a1b94723e63ebbd6f2ad3_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-11_8884909fc08a1b94723e63ebbd6f2ad3_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      PID:2508

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          42KB

          MD5

          351d1426518a8bf32481a507eb0f11a0

          SHA1

          6d6ee9c5a2e85f63056631b26cb1ad37d69fec6f

          SHA256

          dd318392228c245615fb7a76ac8a7e08897b9e829bab55324f2ad5e7e5cf850b

          SHA512

          549a317f8f588098df8a5130b744f17f2768ac0ffd6c8993f2e164b0eab35043f9e51f6129332e338fd2a1847160e8b8f607239b349b7f665ebfd5406f66e6e6

        • memory/1904-0-0x0000000000250000-0x0000000000256000-memory.dmp

          Filesize

          24KB

        • memory/1904-2-0x0000000000250000-0x0000000000256000-memory.dmp

          Filesize

          24KB

        • memory/1904-1-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB

        • memory/1904-3-0x00000000002D0000-0x00000000002D6000-memory.dmp

          Filesize

          24KB

        • memory/1904-14-0x0000000002290000-0x000000000229A000-memory.dmp

          Filesize

          40KB

        • memory/2508-16-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB

        • memory/2508-25-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/2508-18-0x0000000000430000-0x0000000000436000-memory.dmp

          Filesize

          24KB

        • memory/2508-26-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB