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Analysis

  • max time kernel
    134s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/08/2024, 03:41

General

  • Target

    2024-08-26_c48c4409a72e4fb90a6b4dd7592ffde1_cryptolocker.exe

  • Size

    31KB

  • MD5

    c48c4409a72e4fb90a6b4dd7592ffde1

  • SHA1

    3110c9492f92d6beb940553e625d808bdb6f3b6a

  • SHA256

    eaf2e7e68ebd0e83d2835e4f21a01bac75c0b56e13734d69b538a24c4178c8ba

  • SHA512

    808f53987520359b3f171980b73d34d7ba8aafaa0cbcae349e953f33e6331dda03f79fa42a5033172ea1738d258ed7ff0b500d7c877091a4fc04f73ed252cf00

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+94fIT:vj+jsMQMOtEvwDpj5YJ

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\2024-08-26_c48c4409a72e4fb90a6b4dd7592ffde1_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-26_c48c4409a72e4fb90a6b4dd7592ffde1_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2440
    • 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:2436
  • 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=4612,i,3210801877307184477,8078594481454001567,262144 --variations-seed-version --mojo-platform-channel-handle=4180 /prefetch:8
    1⤵
      PID:5084

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      31KB

      MD5

      515ae1a79b7793f82a5c2f1a3a747c49

      SHA1

      ae8c925bc1e9eaa9032456d5d711851b2c639526

      SHA256

      a1f2b889d9db1af030d66d555e9ee52735852e9174365d1e7cd1f7fe89e36b1e

      SHA512

      5655300ca5eaafaff43bfeb4be281a8cbea8345bbc8882a4228d4b4cde81e2d085a4da6ad50699cd6e87c8ea5efe18c6a9ac5474dc37fcb40c86197e7fabe626

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

      Filesize

      315B

      MD5

      a34ac19f4afae63adc5d2f7bc970c07f

      SHA1

      a82190fc530c265aa40a045c21770d967f4767b8

      SHA256

      d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

      SHA512

      42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

    • memory/2436-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

      Filesize

      24KB

    • memory/2436-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

      Filesize

      24KB

    • memory/2440-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

      Filesize

      24KB

    • memory/2440-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

      Filesize

      24KB

    • memory/2440-2-0x00000000006D0000-0x00000000006D6000-memory.dmp

      Filesize

      24KB