Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/07/2026, 15:02

General

  • Target
    Doc 3008389937882.exe
  • Size 946KB
  • Sample260707-sefa7sfy4x
  • SHA256 4081ef22d739bb9238171ab6d1b48a6bb18f44f964ebc7cb5e9cdea49d1f00c6
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 1 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Doc 3008389937882.exe
    "C:\Users\Admin\AppData\Local\Temp\Doc 3008389937882.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2964
    • C:\Users\Admin\AppData\Local\Temp\Doc 3008389937882.exe
      "C:\Users\Admin\AppData\Local\Temp\Doc 3008389937882.exe"
      2⤵
        PID:724
      • C:\Users\Admin\AppData\Local\Temp\Doc 3008389937882.exe
        "C:\Users\Admin\AppData\Local\Temp\Doc 3008389937882.exe"
        2⤵
        • Suspicious use of NtCreateThreadExHideFromDebugger
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:5812
        • C:\Users\Admin\AppData\Local\Temp\Doc 3008389937882.exe
          "C:\Users\Admin\AppData\Local\Temp\Doc 3008389937882.exe"
          3⤵
            PID:236
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k GPSvcGroup
        1⤵
          PID:5424

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              System.dll

              • Path C:\Users\Admin\AppData\Local\Temp\nsmAC46.tmp\System.dll
              • Size 12KB
              • SHA256 996645d7f16a6294babb6da83478062aed7b72318d7a51b66e90ab5d3edc51a5
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/2964-19-0x0000000005810000-0x00000000089F9000-memory.dmp

              memory/2964-20-0x0000000005810000-0x00000000089F9000-memory.dmp

              memory/2964-21-0x0000000073C55000-0x0000000073C56000-memory.dmp

              memory/5812-22-0x0000000000400000-0x00000000016E6000-memory.dmp

              memory/5812-23-0x00000000016F0000-0x00000000048D9000-memory.dmp

              memory/5812-24-0x00000000016F0000-0x00000000048D9000-memory.dmp

              memory/5812-27-0x0000000000400000-0x00000000016E6000-memory.dmp

              memory/5812-32-0x0000000000400000-0x00000000016E6000-memory.dmp

              memory/5812-37-0x00000000016F0000-0x00000000048D9000-memory.dmp