Analysis

  • max time kernel
    149s
  • 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
    04/06/2024, 05:50

General

  • Target

    2024-06-04_c14a3bd4b82919480a9478d2d41924e3_cryptolocker.exe

  • Size

    90KB

  • MD5

    c14a3bd4b82919480a9478d2d41924e3

  • SHA1

    abc2398147a6a1e0d65b97996ca8cf79db9be4ee

  • SHA256

    e98997de326ef212073c78aad0206bc2f64d19585533ec44332838cc50c0c049

  • SHA512

    ad83619c8f889ee03947373dddff7904b4f98ac9ad10a2b7682ea2a8ba30ec9677ddd5a39d76221a45d13503feeb4416a789feb64a281239ca82d46bd6a0f4a0

  • SSDEEP

    1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAB:n6a+1SEOtEvwDpjYYvQd2PB

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 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
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\2024-06-04_c14a3bd4b82919480a9478d2d41924e3_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-04_c14a3bd4b82919480a9478d2d41924e3_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5064
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3108

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          90KB

          MD5

          bd47ed81bae78bc04792549f37dd62ad

          SHA1

          c1583f852354674ee9484a83133b6d27341b129c

          SHA256

          811d8c140d538a88d3fbd2a7296aab1e7a94e05f642afd175c7b740acf3e01c8

          SHA512

          26a1c0897ee24a6d0abceb1a880e645c3e3ae9531904024ef3a1ab767745c7c1ada9a54f78d15c8c1eb91db7d360f453ac137c8ae2523653a8bafc5298809d61

        • memory/3108-16-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/3108-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

          Filesize

          24KB

        • memory/3108-26-0x00000000006B0000-0x00000000006B6000-memory.dmp

          Filesize

          24KB

        • memory/3108-27-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/5064-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/5064-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/5064-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB

        • memory/5064-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/5064-18-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB