Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/11/2024, 06:54

General

  • Target

    2024-11-10_f18de9de8a1ca6181b6b460123d77dbb_cryptolocker.exe

  • Size

    92KB

  • MD5

    f18de9de8a1ca6181b6b460123d77dbb

  • SHA1

    615c63f9da073f0ad1b882e9a7b9193c34321cb3

  • SHA256

    7f7f1775a3521da1a80589540a2b438e61c2265436fe9d56e615eda4902cfbfb

  • SHA512

    826488dbf3d6ceb309d810f9b341535ddd19ab00a34099c491497ba10c5c6487cdb2fe84150f95457346ad0180899cc3569d30a749d6dba7ff1ba24b9ca87ca6

  • SSDEEP

    1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAep:n6a+1SEOtEvwDpjYYvQd2PU

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-10_f18de9de8a1ca6181b6b460123d77dbb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-10_f18de9de8a1ca6181b6b460123d77dbb_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3296
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3596

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\asih.exe

    Filesize

    92KB

    MD5

    89a6b47a1ea601c1ac57db4612b444d7

    SHA1

    e9a514d36b23098c54d9a724e3f628c26486f7f6

    SHA256

    9770498a4c92cc33944035c0bfa78a5270e773d6a8452991d53f72d7c172c637

    SHA512

    7c5e57d38d2fbcb20575433326d1b1e98395336d7ea3e2f9b0235e790e3aeb05c17f97f646b5fe05970cd9adc6d1aed9f48fcd7027e47c72691d81fc4448a53d

  • memory/3296-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3296-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/3296-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/3296-3-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/3296-19-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3596-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3596-20-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/3596-26-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/3596-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB