Analysis

  • max time kernel
    178s
  • max time network
    144s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/08/2026, 15:17

General

  • Target
    4d5696c5f59664e09584c457d82e78b2fd7ac681431ee0d5656907d404d34551.exe
  • Size 279KB
  • Sample260810-spdkcsbr7w
  • SHA256 4d5696c5f59664e09584c457d82e78b2fd7ac681431ee0d5656907d404d34551
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Checks QEMU agent file 2 TTPs 1 IoCs

    Checks presence of QEMU agent, possibly to detect virtualization.

  • Loads dropped DLL 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4d5696c5f59664e09584c457d82e78b2fd7ac681431ee0d5656907d404d34551.exe
    "C:\Users\Admin\AppData\Local\Temp\4d5696c5f59664e09584c457d82e78b2fd7ac681431ee0d5656907d404d34551.exe"
    1⤵
    • Checks QEMU agent file
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1884

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsd1540.tmp\System.dll
        • Size 12KB
        • SHA256 8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1884-15-0x0000000005450000-0x0000000005E9E000-memory.dmp

        memory/1884-16-0x0000000005450000-0x0000000005E9E000-memory.dmp