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Analysis

  • max time kernel
    150s
  • max time network
    157s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    09/05/2024, 20:24

General

  • Target

    2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe

  • Size

    68KB

  • MD5

    3042696e30608a27beae9522dea2a2b6

  • SHA1

    302071c513bf13d71a834c43b42a13720bcc8257

  • SHA256

    ec556b654a240b7b256cb9a8ae785963fd232e18e6c48e896272984eca847d4f

  • SHA512

    75c368ecc0344840272a7fd759f730d18cef3295fa1cb789e979158e272b73aed6a5a8a11c9484980200b4c3c774f597209db700ca6510c123796744a30c6b9f

  • SSDEEP

    1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLEZ:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7h

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 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 UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3048
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:2816

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    68KB

    MD5

    5d0bcb4e844cb46ba469ce074ced48c9

    SHA1

    9b77646caaefc4c983621e95c1382020e05a8f32

    SHA256

    464a1b783d6c73ae57f0a21b2b697b66ac97b0fe93d3003e1764fe32b6018e74

    SHA512

    7bfb185c4ca59e05190336cac00711c06c66ce92d7309e6302e9be20728e8e3a5be3d7faafb55ee6607411d7924b3856926df8650c5a253d091eb76a68d52c7d

  • memory/2816-23-0x0000000000390000-0x0000000000396000-memory.dmp

    Filesize

    24KB

  • memory/3048-0-0x00000000002F0000-0x00000000002F6000-memory.dmp

    Filesize

    24KB

  • memory/3048-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/3048-8-0x00000000002F0000-0x00000000002F6000-memory.dmp

    Filesize

    24KB