Analysis
- max time kernel
148s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
10/09/2026, 12:35
General
- Target Salary_Increase_Sheet-Pdf.exe
- Size 291KB
- Sample260910-pssa5scl7w
- SHA256 c2c92d04719006818e5ddddece2df924dfbd1b8441ec4a43aca487c876538d19
Malware Config
Signatures
- Family: Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 2 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 NtSetInformationThreadHideFromDebugger 2 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
-
C:\Users\Admin\AppData\Local\Temp\Salary_Increase_Sheet-Pdf.exe"C:\Users\Admin\AppData\Local\Temp\Salary_Increase_Sheet-Pdf.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Salary_Increase_Sheet-Pdf.exe"C:\Users\Admin\AppData\Local\Temp\Salary_Increase_Sheet-Pdf.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Salary_Increase_Sheet-Pdf.exe"C:\Users\Admin\AppData\Local\Temp\Salary_Increase_Sheet-Pdf.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\Salary_Increase_Sheet-Pdf.exe"C:\Users\Admin\AppData\Local\Temp\Salary_Increase_Sheet-Pdf.exe"3⤵
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
nse2717.tmp
System.dll
nsf28EF.tmp
nsk2871.tmp
nsk29AC.tmp
nsu294D.tmp
memory/2648-561-0x00000000057F0000-0x0000000006B39000-memory.dmp
memory/2648-562-0x0000000074455000-0x0000000074456000-memory.dmp
memory/5200-563-0x0000000001760000-0x0000000002AA9000-memory.dmp
memory/5200-565-0x000000007778D000-0x000000007778E000-memory.dmp
memory/5200-564-0x00000000777CF000-0x00000000777D0000-memory.dmp
memory/5200-566-0x0000000077855000-0x0000000077856000-memory.dmp
memory/5200-573-0x0000000001760000-0x0000000002AA9000-memory.dmp
memory/5200-574-0x0000000000470000-0x0000000001756000-memory.dmp
memory/5200-575-0x0000000077855000-0x0000000077856000-memory.dmp