Analysis

  • max time kernel
    125s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/09/2024, 02:31

General

  • Target

    2024-09-09_1fb9b584c8aabd31e50bd53407751034_cryptolocker.exe

  • Size

    72KB

  • MD5

    1fb9b584c8aabd31e50bd53407751034

  • SHA1

    67b98f919780dd14c8a0417e61d0078d7260fad5

  • SHA256

    549a8d586b3569744667eea1a5e03022d7e58e2334f1f75ccf3f4fb4fc5cba17

  • SHA512

    87b99c8026ee01c28817c5fc55804938618b1caca9a49e796d4ca709478ef1a71a3627774989eacb61e6001fa8b0218cf9373dd07c952cc24b381d8637a1fb74

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4ZPsED3VK2+ZtyOjgO4r9vFAg2rq2g1B/Rk:vj+jsMQMOtEvwDpj5HZYTjipvF24s

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 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-09_1fb9b584c8aabd31e50bd53407751034_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-09_1fb9b584c8aabd31e50bd53407751034_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3688
    • 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:4356
  • 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=4164,i,1330210614411927383,9239043499051775691,262144 --variations-seed-version --mojo-platform-channel-handle=4460 /prefetch:8
    1⤵
      PID:4936

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

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

            Filesize

            72KB

            MD5

            90d0b4d5b02bf365ddb323d12b6003bf

            SHA1

            35bcd037c4854297bb38339420fb96f607042d0c

            SHA256

            2922dc45a176a9419d7e15861472a465cc4132c69698bfe1c1c441935b901f9c

            SHA512

            1a1c7a548cc11d352e35ad5ccd6238550609a5c542c443267d5792bc53dece80ec93249e77cf31fa9629ab250e2b392eafd398533f5193063ac4a9c73753c80b

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

            Filesize

            315B

            MD5

            a34ac19f4afae63adc5d2f7bc970c07f

            SHA1

            a82190fc530c265aa40a045c21770d967f4767b8

            SHA256

            d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

            SHA512

            42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

          • memory/3688-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

            Filesize

            24KB

          • memory/3688-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

            Filesize

            24KB

          • memory/3688-2-0x0000000002080000-0x0000000002086000-memory.dmp

            Filesize

            24KB

          • memory/4356-17-0x0000000000690000-0x0000000000696000-memory.dmp

            Filesize

            24KB

          • memory/4356-23-0x0000000000670000-0x0000000000676000-memory.dmp

            Filesize

            24KB