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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    26/08/2024, 07:13

General

  • Target

    2024-08-26_ed25e25666540aa270418f1f3d21a11d_cryptolocker.exe

  • Size

    48KB

  • MD5

    ed25e25666540aa270418f1f3d21a11d

  • SHA1

    dc31bb7866b3ef21cedba926aacb31f9f2469b36

  • SHA256

    41d4868934911df58d351d59697699057b6293ec1657206bf75657e9fa129844

  • SHA512

    357bab639c7c65793ff73e1c90a8d60317411526f55e353f956b683b38691b7cfab40a33af478b5d2812160c7073db90861d61bc1a48897a55b3f61ad735fd78

  • SSDEEP

    1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjatc:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7o

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\2024-08-26_ed25e25666540aa270418f1f3d21a11d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-26_ed25e25666540aa270418f1f3d21a11d_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2100
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of UnmapMainImage
      PID:2876

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    48KB

    MD5

    0f67fb3a37ab40300022e970b502f712

    SHA1

    3b932840f477838655e2bd167689d84baaad11c2

    SHA256

    90d33f7708a6caef02d6163ae25a3d93ecbc4e4aedd325e64f2a4141fa919ce8

    SHA512

    d488d28a6bc5b211a0cbd52cfafe56db6957930ffa6b883bd8ba56dc257dd1709ec1402a1a665096a45a4772dd193d15040021cbc6a03384d2fe940b1630115e

  • memory/2100-0-0x0000000000230000-0x0000000000236000-memory.dmp

    Filesize

    24KB

  • memory/2100-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2100-8-0x0000000000230000-0x0000000000236000-memory.dmp

    Filesize

    24KB