Analysis
- max time kernel
152s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
04/06/2024, 06:26
General
- Target SAMPLE _CATALOGUE_EWF_PDF.com.exe
- Size 658KB
- Sample240604-g67c8aga6s
- SHA256 960a287cacdeeb38a29b06b0a73f6f150be8064fd414b9e050eed13c03cbe917
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 2 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 4 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).
- Suspicious behavior: EnumeratesProcesses 34 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
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C:\Users\Admin\AppData\Local\Temp\SAMPLE _CATALOGUE_EWF_PDF.com.exe"C:\Users\Admin\AppData\Local\Temp\SAMPLE _CATALOGUE_EWF_PDF.com.exe"2⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\SAMPLE _CATALOGUE_EWF_PDF.com.exe"C:\Users\Admin\AppData\Local\Temp\SAMPLE _CATALOGUE_EWF_PDF.com.exe"3⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\clip.exe"C:\Windows\SysWOW64\clip.exe"4⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3948 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/1864-51-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1864-60-0x0000000000401000-0x0000000000404000-memory.dmp
memory/1864-61-0x0000000001660000-0x000000000233A000-memory.dmp
memory/1864-59-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1864-29-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1864-30-0x0000000001660000-0x000000000233A000-memory.dmp
memory/1864-31-0x0000000077568000-0x0000000077569000-memory.dmp
memory/1864-32-0x0000000077585000-0x0000000077586000-memory.dmp
memory/1864-34-0x0000000001660000-0x000000000233A000-memory.dmp
memory/1864-33-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1864-46-0x0000000000401000-0x0000000000404000-memory.dmp
memory/1864-47-0x00000000774E1000-0x0000000077601000-memory.dmp
memory/1864-58-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1864-44-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1864-53-0x0000000000401000-0x0000000000404000-memory.dmp
memory/1864-49-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1864-50-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1864-48-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3364-56-0x000000000D4C0000-0x000000000F781000-memory.dmp
memory/4180-57-0x0000000000B30000-0x0000000000B6F000-memory.dmp
memory/4180-62-0x0000000000B30000-0x0000000000B6F000-memory.dmp
memory/4900-25-0x00000000041A0000-0x0000000004E7A000-memory.dmp
memory/4900-26-0x00000000774E1000-0x0000000077601000-memory.dmp
memory/4900-45-0x00000000041A0000-0x0000000004E7A000-memory.dmp
memory/4900-27-0x00000000041A0000-0x0000000004E7A000-memory.dmp
memory/4900-28-0x00000000741C5000-0x00000000741C6000-memory.dmp