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Analysis

  • max time kernel
    131s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/10/2024, 05:41

General

  • Target

    2024-10-06_2edf56614e0cdfa2f291b15cbd8a4b71_cryptolocker.exe

  • Size

    86KB

  • MD5

    2edf56614e0cdfa2f291b15cbd8a4b71

  • SHA1

    5123ca96b5a16d41cb5756ac37613390eb1efebb

  • SHA256

    08cc85c59740ef5132a3a76671b1310a9277b80d0dbcddbe6b8d0850607b4ed6

  • SHA512

    239b22725e639dc596c5714c26cd7dc36c95e26ae8d8b15f4fb1fb03aa50b6d5760f54f60bd37efa2b5a418f768d67b704749d6723f222c867109690ab774276

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrCsb:TCjsIOtEvwDpj5HE/OUHnSMX

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\2024-10-06_2edf56614e0cdfa2f291b15cbd8a4b71_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-06_2edf56614e0cdfa2f291b15cbd8a4b71_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5872
    • 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:5204
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3820,i,2904906934812054273,11716976550456127484,262144 --variations-seed-version --mojo-platform-channel-handle=1420 /prefetch:8
    1⤵
      PID:1048

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      86KB

      MD5

      1a1097a4bfdd99e97de1840619e95402

      SHA1

      cfdceb328b6c2c7b40022caff9fa133696ec47d7

      SHA256

      b6bde4ad2be8582e904143cf9565cb92dd3b074bfa218e92c1484e0e22cdb952

      SHA512

      771cf45f350d756033e92047e205ccd2a8622472d9decff3bc06f7acffb71a60d72ff5231fefdb62d2527ec51d1c2d0dd7326be898761bad7f90e559df3d838a

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

      Filesize

      315B

      MD5

      a34ac19f4afae63adc5d2f7bc970c07f

      SHA1

      a82190fc530c265aa40a045c21770d967f4767b8

      SHA256

      d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

      SHA512

      42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

    • memory/5204-19-0x00000000006A0000-0x00000000006A6000-memory.dmp

      Filesize

      24KB

    • memory/5204-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

      Filesize

      24KB

    • memory/5204-48-0x0000000000500000-0x000000000050E000-memory.dmp

      Filesize

      56KB

    • memory/5872-0-0x0000000000500000-0x000000000050E000-memory.dmp

      Filesize

      56KB

    • memory/5872-1-0x0000000002310000-0x0000000002316000-memory.dmp

      Filesize

      24KB

    • memory/5872-2-0x0000000002310000-0x0000000002316000-memory.dmp

      Filesize

      24KB

    • memory/5872-4-0x0000000002230000-0x0000000002236000-memory.dmp

      Filesize

      24KB

    • memory/5872-17-0x0000000000500000-0x000000000050E000-memory.dmp

      Filesize

      56KB