Analysis

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

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    02/06/2024, 05:22

General

  • Target

    2024-06-02_3d024fb7baaa334c2960f3fbeedd05fb_cryptolocker.exe

  • Size

    57KB

  • MD5

    3d024fb7baaa334c2960f3fbeedd05fb

  • SHA1

    2bd256a8081615f46de79e90a1f31cf5518bd19d

  • SHA256

    5ec61f5a1d05c4c65b3416e73daa69b8453d62140cdadf5f3b967fd66cdb6ceb

  • SHA512

    200322915004cd627c2e5264fd8e6eebfa3cc83a70fa86c6baf92077ea1c072770d202ad7e5b383b9d6cf75a97d52be9c4ba79c35293660b3374f4f09c57d90a

  • SSDEEP

    768:bP9g/WItCSsAfFaeOcfXVr3BPOz5CFBmNuFgUjlgzl:bP9g/xtCS3Dxx0nl

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • UPX dump on OEP (original entry point) 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 4 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 UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-02_3d024fb7baaa334c2960f3fbeedd05fb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-02_3d024fb7baaa334c2960f3fbeedd05fb_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2860
    • 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:2116

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          57KB

          MD5

          c2f7c450456777d0bbd7c871567731db

          SHA1

          7e003d132fdacd1cbe4cc4daa0eb534f78523a45

          SHA256

          5c10a9ac7d93af10f0979da619232bb83d4f0f01eb059fbcdd8f6bff8bcc86ee

          SHA512

          33e9f599be7a6743265995c2d0ace6223ae0a508037d1181a8394506292275aa38b9cced192e67dfa795cbc1aea1908a4af04ed4db669a577a24bc354b6126ec

        • memory/2116-17-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/2116-26-0x0000000000210000-0x0000000000216000-memory.dmp

          Filesize

          24KB

        • memory/2860-0-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/2860-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

          Filesize

          24KB

        • memory/2860-2-0x0000000000400000-0x0000000000406000-memory.dmp

          Filesize

          24KB

        • memory/2860-9-0x00000000005C0000-0x00000000005C6000-memory.dmp

          Filesize

          24KB

        • memory/2860-13-0x0000000000810000-0x000000000081E000-memory.dmp

          Filesize

          56KB