Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/06/2024, 02:28

General

  • Target

    2024-06-11_5197f2b53d09189e27b01f914539f07b_cryptolocker.exe

  • Size

    43KB

  • MD5

    5197f2b53d09189e27b01f914539f07b

  • SHA1

    b7629135bf81e2b50716f3809592990ce83a67d9

  • SHA256

    4fe4549b3947338a34c2f787e819a28c273c9d99aa1d3978a21b18c553387b34

  • SHA512

    ab9532d5ff18bb30753773c4770d36a79d79a71d8fedc194bf8b4d53b50e51ecaa84b903a6e31a9d7f8cfa8204cbcd3b51956cbd92477a7322ffb6eb7adbabb7

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/aDDRJ:6j+1NMOtEvwDpjrRsJ

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Detects executables built or packed with MPress PE compressor 5 IoCs
  • Checks computer location settings 2 TTPs 1 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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-11_5197f2b53d09189e27b01f914539f07b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-11_5197f2b53d09189e27b01f914539f07b_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3200
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3056
  • 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 --no-appcompat-clear --field-trial-handle=4584,i,17096020621006928097,15544233752327415349,262144 --variations-seed-version --mojo-platform-channel-handle=4360 /prefetch:8
    1⤵
      PID:1776

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            43KB

            MD5

            5152e81cee8681927ae10aabe7d9f548

            SHA1

            9139b43f8e3fbd5bef3c634859c90956fa93a96d

            SHA256

            7b88eaea8a8d2c8f7768f8dee074fafb2cf263ad519b936e053bec0d3d9552cd

            SHA512

            322a6dab5836255ecbc93d3d4bb2366737fe0a1f6f7fb0d1764607aeea04884886b3e7c47fa3a7bd7959c465d119d66e9ec858322bba79e3110c533f7f4c80b4

          • memory/3056-20-0x0000000001F40000-0x0000000001F46000-memory.dmp

            Filesize

            24KB

          • memory/3056-18-0x0000000000500000-0x000000000050F000-memory.dmp

            Filesize

            60KB

          • memory/3056-26-0x0000000002150000-0x0000000002156000-memory.dmp

            Filesize

            24KB

          • memory/3056-27-0x0000000000500000-0x000000000050F000-memory.dmp

            Filesize

            60KB

          • memory/3200-0-0x0000000000500000-0x000000000050F000-memory.dmp

            Filesize

            60KB

          • memory/3200-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

            Filesize

            24KB

          • memory/3200-2-0x0000000002060000-0x0000000002066000-memory.dmp

            Filesize

            24KB

          • memory/3200-9-0x00000000021D0000-0x00000000021D6000-memory.dmp

            Filesize

            24KB

          • memory/3200-17-0x0000000000500000-0x000000000050F000-memory.dmp

            Filesize

            60KB