Analysis

  • max time kernel
    146s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/08/2023, 15:48

General

  • Target
    3c609fde5e771ccb3cff10b9e5fcc216848d94f7065eaeda2075b12ed44d2be7exe_JC.exe
  • Size 365KB
  • Sample230803-s83nlaea67
  • SHA256 3c609fde5e771ccb3cff10b9e5fcc216848d94f7065eaeda2075b12ed44d2be7
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\3c609fde5e771ccb3cff10b9e5fcc216848d94f7065eaeda2075b12ed44d2be7exe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\3c609fde5e771ccb3cff10b9e5fcc216848d94f7065eaeda2075b12ed44d2be7exe_JC.exe"
    1⤵
    • Loads dropped DLL
    PID:2576

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsk38BF.tmp\System.dll
        • Size 11KB
        • SHA256 fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e
        • MD5 SHA1 SHA512 SSDEEP

        memory/2576-140-0x0000000004B40000-0x000000000588E000-memory.dmp

        memory/2576-141-0x0000000004B40000-0x000000000588E000-memory.dmp