Analysis
- max time kernel
157s - max time network
163s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
02/05/2024, 02:15
General
- Target dfaddeb0537c28e65f8625ca14202fa480132e5418373b476e0a48d898316ffc.exe
- Size 422KB
- Sample240502-cpx11aec4t
- SHA256 dfaddeb0537c28e65f8625ca14202fa480132e5418373b476e0a48d898316ffc
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 1 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\dfaddeb0537c28e65f8625ca14202fa480132e5418373b476e0a48d898316ffc.exe"C:\Users\Admin\AppData\Local\Temp\dfaddeb0537c28e65f8625ca14202fa480132e5418373b476e0a48d898316ffc.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\dfaddeb0537c28e65f8625ca14202fa480132e5418373b476e0a48d898316ffc.exe"C:\Users\Admin\AppData\Local\Temp\dfaddeb0537c28e65f8625ca14202fa480132e5418373b476e0a48d898316ffc.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4108 -s 10683⤵
- Program crash
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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=1420 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:81⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4108 -ip 41081⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/1600-30-0x0000000004B10000-0x00000000059F1000-memory.dmp
memory/1600-9-0x0000000004B10000-0x00000000059F1000-memory.dmp
memory/1600-10-0x0000000004B10000-0x00000000059F1000-memory.dmp
memory/1600-11-0x0000000077981000-0x0000000077AA1000-memory.dmp
memory/1600-12-0x0000000010004000-0x0000000010005000-memory.dmp
memory/4108-29-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4108-33-0x0000000001660000-0x0000000002541000-memory.dmp
memory/4108-16-0x0000000077A25000-0x0000000077A26000-memory.dmp
memory/4108-14-0x0000000001660000-0x0000000002541000-memory.dmp
memory/4108-13-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4108-32-0x0000000000401000-0x0000000000404000-memory.dmp
memory/4108-31-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4108-15-0x0000000077A08000-0x0000000077A09000-memory.dmp
memory/4108-34-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4108-35-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4108-37-0x0000000000401000-0x0000000000404000-memory.dmp
memory/4108-36-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4108-39-0x0000000077981000-0x0000000077AA1000-memory.dmp
memory/4108-38-0x0000000001660000-0x0000000002541000-memory.dmp