Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/09/2024, 02:35

General

  • Target

    2024-09-15_279186d8c0c6a843c0efc210846a15eb_cryptolocker.exe

  • Size

    72KB

  • MD5

    279186d8c0c6a843c0efc210846a15eb

  • SHA1

    7739111d2fe6b4eee32619cb3329a73b9856e67b

  • SHA256

    d0f0c698c419d085404cef957dd5b6b4c25c1764db815c9d3f919103c2042384

  • SHA512

    70b49c01553e5046b6f1f5571f152e73fe046995df7ac65e55781c2b91f1c8081d7ca0b196a510f9eb6ef7724f5688429b58068c5471cd17cb38196c9f8247b9

  • SSDEEP

    1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZOt:DW60sllyWOtEvwDpjwF85W

Score
7/10

Malware Config

Signatures

  • 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).

  • 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.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-15_279186d8c0c6a843c0efc210846a15eb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-15_279186d8c0c6a843c0efc210846a15eb_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4528
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4588
  • 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=4156,i,9445584274764997943,12714240264001792460,262144 --variations-seed-version --mojo-platform-channel-handle=4032 /prefetch:8
    1⤵
      PID:2528

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      72KB

      MD5

      40df11111b9e811f4dbaf0824f13469e

      SHA1

      69e49476c9b4107d9e5662c048ceb6e2d3152d15

      SHA256

      7344776e850559c10024fe6f0315e3eba1b9576263d13f277d557b21c0952114

      SHA512

      73df4f8126d79799daf80dd26cb9f659ed4bd97f33286b47dafdef24e8c1925d26dab377b299d16b88732fc8cf596d58690f479cd4a217745416a51dce0daa82

    • memory/4528-0-0x0000000000500000-0x000000000050B000-memory.dmp

      Filesize

      44KB

    • memory/4528-1-0x0000000000620000-0x0000000000626000-memory.dmp

      Filesize

      24KB

    • memory/4528-2-0x0000000000620000-0x0000000000626000-memory.dmp

      Filesize

      24KB

    • memory/4528-5-0x0000000000650000-0x0000000000656000-memory.dmp

      Filesize

      24KB

    • memory/4528-17-0x0000000000500000-0x000000000050B000-memory.dmp

      Filesize

      44KB

    • memory/4588-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

      Filesize

      24KB

    • memory/4588-20-0x00000000005E0000-0x00000000005E6000-memory.dmp

      Filesize

      24KB

    • memory/4588-26-0x0000000000500000-0x000000000050B000-memory.dmp

      Filesize

      44KB