Analysis
- max time kernel
140s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
09/05/2024, 10:02
General
- Target 345ed67cf43e000ffa57dfc07fc6606f757cf88a6d3b9d8778444d7eef1dd793.exe
- Size 461KB
- Sample240509-l2vwvaeg94
- SHA256 345ed67cf43e000ffa57dfc07fc6606f757cf88a6d3b9d8778444d7eef1dd793
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
- Drops file in System32 directory 1 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 3 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\345ed67cf43e000ffa57dfc07fc6606f757cf88a6d3b9d8778444d7eef1dd793.exe"C:\Users\Admin\AppData\Local\Temp\345ed67cf43e000ffa57dfc07fc6606f757cf88a6d3b9d8778444d7eef1dd793.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- 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\345ed67cf43e000ffa57dfc07fc6606f757cf88a6d3b9d8778444d7eef1dd793.exe"C:\Users\Admin\AppData\Local\Temp\345ed67cf43e000ffa57dfc07fc6606f757cf88a6d3b9d8778444d7eef1dd793.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3524 -s 8803⤵
- 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=4272 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:81⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 3524 -ip 35241⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
Forbydende173.ini
memory/3524-279-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3524-264-0x0000000077315000-0x0000000077316000-memory.dmp
memory/3524-282-0x0000000077271000-0x0000000077391000-memory.dmp
memory/3524-281-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3524-261-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3524-262-0x0000000001660000-0x000000000314C000-memory.dmp
memory/3524-263-0x00000000772F8000-0x00000000772F9000-memory.dmp
memory/3524-280-0x0000000001660000-0x000000000314C000-memory.dmp
memory/3524-277-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4924-278-0x0000000004B40000-0x000000000662C000-memory.dmp
memory/4924-257-0x0000000004B40000-0x000000000662C000-memory.dmp
memory/4924-258-0x0000000004B40000-0x000000000662C000-memory.dmp
memory/4924-260-0x0000000010004000-0x0000000010005000-memory.dmp
memory/4924-259-0x0000000077271000-0x0000000077391000-memory.dmp