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Analysis

  • max time kernel
    143s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    08/03/2024, 05:32

General

  • Target

    2024-03-08_1f27c53a6ca613a5cc491f3a11ae0005_cryptolocker.exe

  • Size

    50KB

  • MD5

    1f27c53a6ca613a5cc491f3a11ae0005

  • SHA1

    f5226d8a1619fed4426bad6eac3e4d8ddf3bd479

  • SHA256

    8b9c1b34f8eb03e64f5274e37b5556779c2c31d7e5d570d1d45298f4704578eb

  • SHA512

    61fba55947d6acc50bfbe1f8dba305430e196bc1d7026a2f26191fb445a442d58751ae6ff1750c5cdc69554a366f8729fa48050040a043e4aa178c8214960bcf

  • SSDEEP

    1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAII2:aq7tdgI2MyzNORQtOflIwoHNV2XBFV78

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\2024-03-08_1f27c53a6ca613a5cc491f3a11ae0005_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-08_1f27c53a6ca613a5cc491f3a11ae0005_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1732
    • 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:3016

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    50KB

    MD5

    615628bb70d308a9e67600aefa96dc26

    SHA1

    bf071cd88107a1671b65409e5229f24f90d9e17d

    SHA256

    5c69bc39fd19cb76cc436a18279b5f4277c30a704db7a8f0440f4dd05015aee0

    SHA512

    a1bf24801aaeade58000bbd837d0d33f6f926083e4c3f4e6da7f4d8afa4c1dcd57ee47196edc8af7f9c2700055e8c70d696a0deaf1688506b42b7170acb4e24b

  • memory/1732-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/1732-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/1732-7-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/3016-16-0x00000000001C0000-0x00000000001C6000-memory.dmp

    Filesize

    24KB