Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/06/2024, 18:26

General

  • Target

    2024-06-01_54ccc81a7970aea370efe1fa08b304bc_cryptolocker.exe

  • Size

    48KB

  • MD5

    54ccc81a7970aea370efe1fa08b304bc

  • SHA1

    68eab3df4bd54e0f48d1a48124dcda5ef5e530b0

  • SHA256

    59d43c2b92a4468250f47ff3a7ad3fae4e373b52738cfe996f868cd5cde93873

  • SHA512

    fc2ffafcfee3e574fe9c5d0fa3aa39356adb76b30b877bde656a27129e3dc399713488750c7e1dcff54e15dd6cc9c28ee1d4f5d7fcbbc3f85b43baba0df4cfe6

  • SSDEEP

    768:79inqyNR/QtOOtEvwDpjBKccJVODvy3Sp8LI:79mqyNhQMOtEvwDpjBzckqSuk

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 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\2024-06-01_54ccc81a7970aea370efe1fa08b304bc_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-01_54ccc81a7970aea370efe1fa08b304bc_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5008
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3196
  • 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=4000,i,1999448010053300448,1112699187621658374,262144 --variations-seed-version --mojo-platform-channel-handle=3976 /prefetch:8
    1⤵
      PID:3188

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      49KB

      MD5

      171e99d82ad7ac6c97fcf4cb23850cdb

      SHA1

      fe34b9bb42ae690ad8a147fd48ba124b73758fd9

      SHA256

      884355d6ca0ec8af04be686b0a3ca3e5c2d2a6f750c9a51a28bb6727ed07769d

      SHA512

      102af9e4043c90fc2621211ee7001579d5b159f1ca9df504a18f373cf20c2bac2730f010e2f6071b9c94d839cf450955560be3521f91b7123a1eef96e2bc6a69

    • memory/3196-20-0x0000000001F80000-0x0000000001F86000-memory.dmp

      Filesize

      24KB

    • memory/3196-26-0x0000000001F10000-0x0000000001F16000-memory.dmp

      Filesize

      24KB

    • memory/3196-17-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB

    • memory/5008-0-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB

    • memory/5008-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

      Filesize

      24KB

    • memory/5008-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

      Filesize

      24KB

    • memory/5008-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

      Filesize

      24KB

    • memory/5008-18-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB