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Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    16/04/2024, 04:56

General

  • Target

    2024-04-16_8a4646a8b0da449de75206b2c79141da_cryptolocker.exe

  • Size

    31KB

  • MD5

    8a4646a8b0da449de75206b2c79141da

  • SHA1

    6f404c317c7f28858b5585885186b83a48c4a4ea

  • SHA256

    f136d448d9294c8a41a653652f044a85ee4d6a188623445d0783367a0495d6c6

  • SHA512

    d045794b3ff17046e77628743daa2362eedf34d1493cdb6d9eec6daa3c06c38f3211dd0d95e9c522623c35a9a84cc39aee4afd3233622f4a9e7d4dadaeccc496

  • SSDEEP

    384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGH:bG74zYcgT/Ekd0ryfjC

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\2024-04-16_8a4646a8b0da449de75206b2c79141da_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-16_8a4646a8b0da449de75206b2c79141da_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2156
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:2516

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    31KB

    MD5

    561a8a52869d62647d8888286be92f2d

    SHA1

    b1c303e1f29c924d018918e6003cebe64408688e

    SHA256

    921d74601ce2a00ca2d200648b6fe334442a4ea2e566000e7ac3699214a12859

    SHA512

    bea14a1f4ebf460c3726062e5865a2be1321f477e281b4daf6ba6dc506d2e4458acd78485ca539a4ae9752b291c6da62fd19fdea4f57d477511b406904e68cfc

  • memory/2156-0-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB

  • memory/2156-1-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/2156-3-0x0000000000480000-0x0000000000486000-memory.dmp

    Filesize

    24KB

  • memory/2156-2-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/2156-15-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB

  • memory/2516-16-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB

  • memory/2516-18-0x0000000000850000-0x0000000000856000-memory.dmp

    Filesize

    24KB

  • memory/2516-25-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/2516-26-0x0000000008000000-0x000000000800A000-memory.dmp

    Filesize

    40KB