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
    12/09/2024, 03:33

General

  • Target

    2024-09-12_5923164f2b6fd1108b6bdedb2e70e18b_cryptolocker.exe

  • Size

    45KB

  • MD5

    5923164f2b6fd1108b6bdedb2e70e18b

  • SHA1

    ff58512cad476533247d7fb47a7ea677f34968c7

  • SHA256

    ef8842bb8141d3fc38d7e4fbfc0933c9242667b978518cd9409b1aac857b890d

  • SHA512

    b7095189ddbd961a0bb9a710171f5be29aea373cf8f7c5fd42eb7c40d592d54b28f7870b22734f2f96460589000904d42a3568f5071a71a24feafefc357b18b9

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/aMDhkJe:6j+1NMOtEvwDpjrRraJe

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\2024-09-12_5923164f2b6fd1108b6bdedb2e70e18b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-12_5923164f2b6fd1108b6bdedb2e70e18b_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3524
    • 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:2296
  • 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=4408,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=1284 /prefetch:8
    1⤵
      PID:1056

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            46KB

            MD5

            c59c34ec9414d9c138e92dadac2ee816

            SHA1

            28e3d7a4a88f0e92e53c7e8c644899a5f73bc0db

            SHA256

            663731953ca744724ed14d6b6bcb28ea79be4df434206956c9a52e7593130df4

            SHA512

            40064392bea262bd7c135d9a58686c0ba47ad5c30cf9d4298eff63211b765e1303c5c415877944f9e3024f3e788ca9bcea543575d6b0ca3441ea23090fb6dcee

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

            Filesize

            315B

            MD5

            a34ac19f4afae63adc5d2f7bc970c07f

            SHA1

            a82190fc530c265aa40a045c21770d967f4767b8

            SHA256

            d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

            SHA512

            42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

          • memory/2296-20-0x0000000000750000-0x0000000000756000-memory.dmp

            Filesize

            24KB

          • memory/2296-19-0x0000000000730000-0x0000000000736000-memory.dmp

            Filesize

            24KB

          • memory/2296-48-0x0000000000500000-0x000000000050F000-memory.dmp

            Filesize

            60KB

          • memory/3524-0-0x0000000000500000-0x000000000050F000-memory.dmp

            Filesize

            60KB

          • memory/3524-1-0x0000000000660000-0x0000000000666000-memory.dmp

            Filesize

            24KB

          • memory/3524-2-0x0000000000660000-0x0000000000666000-memory.dmp

            Filesize

            24KB

          • memory/3524-8-0x0000000000850000-0x0000000000856000-memory.dmp

            Filesize

            24KB

          • memory/3524-17-0x0000000000500000-0x000000000050F000-memory.dmp

            Filesize

            60KB