Analysis

  • max time kernel
    124s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-07-2024 20:25

General

  • Target

    2024-07-08_22a5ab6d9ad3ec3233e66fcee2e1640f_cryptolocker.exe

  • Size

    69KB

  • MD5

    22a5ab6d9ad3ec3233e66fcee2e1640f

  • SHA1

    9b327bc9ed1639b6b00b4a08ea7ff99b84d89e26

  • SHA256

    3b20be38dd9ff0c818e18d87e2998f2188d557b0cd2ef1c7cae939353cb2304e

  • SHA512

    294a283e092d081501046ba7302e882c55b5aba362d468ca814b434a1b60eb5406db7b1b0f7c89b8eb960ebef8b5ac5c6dbdb8745d20bc0083dd39baf67ec757

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEpE0P/xFI0tS2:6j+1NMOtEvwDpjr8ox8UDEpN/jhz

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).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-07-08_22a5ab6d9ad3ec3233e66fcee2e1640f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-08_22a5ab6d9ad3ec3233e66fcee2e1640f_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1792
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2244
  • 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=4560,i,13421008738336098502,1902686380018635081,262144 --variations-seed-version --mojo-platform-channel-handle=768 /prefetch:8
    1⤵
      PID:1836

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      70KB

      MD5

      6726b27cdb7702991cdbb7d6f39c88cf

      SHA1

      abf580ee22511fa908c9422bda1aa31d5edfd2a9

      SHA256

      f540e3b762a3b467a5b542fc3cd327a54a18c64521153adb04baa91ca53a3de1

      SHA512

      d6ac0a613077e55fe34eda48230ef3e694dc1247c749dcbe067d0cea0053d05b2d5f9946d319b364fc4b4322be7909ba6e6292114165513f8c9a4a69a21f2de6

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

      Filesize

      315B

      MD5

      a34ac19f4afae63adc5d2f7bc970c07f

      SHA1

      a82190fc530c265aa40a045c21770d967f4767b8

      SHA256

      d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

      SHA512

      42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

    • memory/1792-0-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB

    • memory/1792-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

      Filesize

      24KB

    • memory/1792-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

      Filesize

      24KB

    • memory/1792-3-0x0000000000610000-0x0000000000616000-memory.dmp

      Filesize

      24KB

    • memory/1792-19-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB

    • memory/2244-17-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB

    • memory/2244-20-0x00000000005D0000-0x00000000005D6000-memory.dmp

      Filesize

      24KB

    • memory/2244-26-0x00000000005A0000-0x00000000005A6000-memory.dmp

      Filesize

      24KB

    • memory/2244-47-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB