Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
10/08/2026, 15:46
General
- Target 4d1b8646c493d3fed46745143f84d655331efb35a908297c86efcdc90fe7cecd.exe
- Size 764KB
- Sample260810-s73bfascra
- SHA256 4d1b8646c493d3fed46745143f84d655331efb35a908297c86efcdc90fe7cecd
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 3 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 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: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\4d1b8646c493d3fed46745143f84d655331efb35a908297c86efcdc90fe7cecd.exe"C:\Users\Admin\AppData\Local\Temp\4d1b8646c493d3fed46745143f84d655331efb35a908297c86efcdc90fe7cecd.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\4d1b8646c493d3fed46745143f84d655331efb35a908297c86efcdc90fe7cecd.exe"C:\Users\Admin\AppData\Local\Temp\4d1b8646c493d3fed46745143f84d655331efb35a908297c86efcdc90fe7cecd.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\4d1b8646c493d3fed46745143f84d655331efb35a908297c86efcdc90fe7cecd.exe"C:\Users\Admin\AppData\Local\Temp\4d1b8646c493d3fed46745143f84d655331efb35a908297c86efcdc90fe7cecd.exe"2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\4d1b8646c493d3fed46745143f84d655331efb35a908297c86efcdc90fe7cecd.exe"C:\Users\Admin\AppData\Local\Temp\4d1b8646c493d3fed46745143f84d655331efb35a908297c86efcdc90fe7cecd.exe"3⤵
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
System.dll
memory/1404-22-0x0000000001760000-0x00000000029E0000-memory.dmp
memory/1404-23-0x0000000077E6F000-0x0000000077E70000-memory.dmp
memory/1404-24-0x0000000077E2D000-0x0000000077E2E000-memory.dmp
memory/1404-25-0x0000000077EF5000-0x0000000077EF6000-memory.dmp
memory/1404-26-0x0000000001760000-0x00000000029E0000-memory.dmp
memory/1404-27-0x0000000000470000-0x0000000001756000-memory.dmp
memory/1404-28-0x0000000077EF5000-0x0000000077EF6000-memory.dmp
memory/3436-20-0x0000000003C70000-0x0000000004EF0000-memory.dmp
memory/3436-21-0x0000000074BA5000-0x0000000074BA6000-memory.dmp