Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
06/03/2026, 15:00
General
- Target 37aa05adb1f5408e886287c8b1ea074315a42ece0d47cbfe6678c26b6c396deb.exe
- Size 417KB
- Sample260306-sdapbsaz7z
- SHA256 37aa05adb1f5408e886287c8b1ea074315a42ece0d47cbfe6678c26b6c396deb
Malware Config
Signatures
- Guloader family
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Drops file in Program Files 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\37aa05adb1f5408e886287c8b1ea074315a42ece0d47cbfe6678c26b6c396deb.exe"C:\Users\Admin\AppData\Local\Temp\37aa05adb1f5408e886287c8b1ea074315a42ece0d47cbfe6678c26b6c396deb.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe"C:\Users\Admin\AppData\Local\Temp\37aa05adb1f5408e886287c8b1ea074315a42ece0d47cbfe6678c26b6c396deb.exe"2⤵
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C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe"C:\Users\Admin\AppData\Local\Temp\37aa05adb1f5408e886287c8b1ea074315a42ece0d47cbfe6678c26b6c396deb.exe"2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe"C:\Users\Admin\AppData\Local\Temp\37aa05adb1f5408e886287c8b1ea074315a42ece0d47cbfe6678c26b6c396deb.exe"3⤵
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
System.dll
nsDialogs.dll
memory/1944-23-0x0000000000E80000-0x00000000020D4000-memory.dmp
memory/1944-20-0x0000000077B49000-0x0000000077B4A000-memory.dmp
memory/1944-51-0x0000000003580000-0x000000000363F000-memory.dmp
memory/1944-37-0x0000000003580000-0x000000000363F000-memory.dmp
memory/1944-18-0x00000000020E0000-0x00000000033E8000-memory.dmp
memory/1944-19-0x0000000077AA8000-0x0000000077AA9000-memory.dmp
memory/1944-21-0x0000000077AC5000-0x0000000077AC6000-memory.dmp
memory/1944-31-0x0000000003580000-0x000000000363F000-memory.dmp
memory/1944-22-0x00000000020E0000-0x00000000033E8000-memory.dmp
memory/1944-24-0x0000000003580000-0x000000000363F000-memory.dmp
memory/1944-25-0x0000000077B49000-0x0000000077B4A000-memory.dmp
memory/4344-14-0x0000000003440000-0x0000000004748000-memory.dmp
memory/4344-15-0x0000000074795000-0x0000000074796000-memory.dmp
memory/4344-17-0x0000000003440000-0x0000000004748000-memory.dmp
memory/4344-16-0x0000000000910000-0x00000000009CF000-memory.dmp