Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-09-2024 17:35

General

  • Target

    2024-09-21_cf33a4b7671b386494871d3e8e5f3c54_cryptolocker.exe

  • Size

    57KB

  • MD5

    cf33a4b7671b386494871d3e8e5f3c54

  • SHA1

    ebf36acef4fa72f6b729d05d2b73b8765cba6760

  • SHA256

    38035fac5d5b6ef1ec2d63ef5194171cf425f4834846d50c278c176b4d6f610a

  • SHA512

    a1d7e271c5df78eaf8faea39a3e772cbba3dc7aa4c4b08a01dbb4d8bf6bd9f08d5a97429f221b6ba121fcec1e2a0758a90dcc7cf62a061948c07f2116bf88425

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMTB:TCjsIOtEvwDpj5HE/OUHnSMG

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 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.

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-21_cf33a4b7671b386494871d3e8e5f3c54_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-21_cf33a4b7671b386494871d3e8e5f3c54_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1120
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:3480

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    57KB

    MD5

    e7bf4326021981e4b81c595faea6dabe

    SHA1

    e6fc46372c86b7d0bcc52ef0253bf455bf70a85f

    SHA256

    d8b8f9db2e5de10db253d9670989c9c1dc3d3a832b4e646d86f96a4c0884087c

    SHA512

    481a3cc7e15152ea009136b367f5f21b9baec4ca4fe65ea75395902d0717507e1c0933bec312a1b6d6a4c54c57e93a343f131fafbfe52c9e0dbbc9c8f75bdf15

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1120-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/1120-1-0x0000000000650000-0x0000000000656000-memory.dmp

    Filesize

    24KB

  • memory/1120-2-0x0000000000650000-0x0000000000656000-memory.dmp

    Filesize

    24KB

  • memory/1120-3-0x00000000007C0000-0x00000000007C6000-memory.dmp

    Filesize

    24KB

  • memory/1120-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3480-19-0x0000000000690000-0x0000000000696000-memory.dmp

    Filesize

    24KB

  • memory/3480-20-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/3480-48-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB