Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    27/05/2024, 19:07

General

  • Target

    2024-05-27_23e2286807afacdfdeee102e1e9d2439_cryptolocker.exe

  • Size

    45KB

  • MD5

    23e2286807afacdfdeee102e1e9d2439

  • SHA1

    5d4fd3d578f5da246a438c717d540bb8f3789d94

  • SHA256

    68d130c466aa6b4cc5c3adb2997c055076232302e43eac2d914a8e086f966e09

  • SHA512

    05ce5dbb21a6bd966dcbecb620756affc0f23bc056c1cfd58d839a8a1d84765df208a104cbffb721a37678f28d33e8330fd45ae2554e58d02531a94ed12b0b12

  • SSDEEP

    768:btB9g/WItCSsAGjX7e9N0hunrknljKr4Q:btB9g/xtCSKqf1rksr9

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-27_23e2286807afacdfdeee102e1e9d2439_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-27_23e2286807afacdfdeee102e1e9d2439_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2340
    • C:\Users\Admin\AppData\Local\Temp\gewos.exe
      "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:3056

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • \Users\Admin\AppData\Local\Temp\gewos.exe

          Filesize

          45KB

          MD5

          6ea976dcf261a4c90ab519df8282afc2

          SHA1

          62c006064fcbac9bde25f6f359f5730f235db3aa

          SHA256

          2d0090cffb0a137d0a6491677e8e484e0c1cdb3681bc05259ea6cf30d3e6ecfd

          SHA512

          d1a50624c9603a6720360291c83d30ab7d3ce2f7327e3c9e03a1f3536caee63991f6591f197cbf816bbffd6c894f322d6859755b218b6e7e4828af3da2425e61

        • memory/2340-0-0x0000000000310000-0x0000000000316000-memory.dmp

          Filesize

          24KB

        • memory/2340-1-0x0000000000400000-0x0000000000406000-memory.dmp

          Filesize

          24KB

        • memory/2340-8-0x0000000000310000-0x0000000000316000-memory.dmp

          Filesize

          24KB

        • memory/3056-16-0x0000000000340000-0x0000000000346000-memory.dmp

          Filesize

          24KB