Analysis
- max time kernel
141s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
14/05/2024, 01:51
General
- Target d9d180756af8d9d4e320bcefbe2e9dcab604082309e92b0cf6b582fc37c2fa91.exe
- Size 515KB
- Sample240514-b952nsfa57
- SHA256 d9d180756af8d9d4e320bcefbe2e9dcab604082309e92b0cf6b582fc37c2fa91
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\d9d180756af8d9d4e320bcefbe2e9dcab604082309e92b0cf6b582fc37c2fa91.exe"C:\Users\Admin\AppData\Local\Temp\d9d180756af8d9d4e320bcefbe2e9dcab604082309e92b0cf6b582fc37c2fa91.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\d9d180756af8d9d4e320bcefbe2e9dcab604082309e92b0cf6b582fc37c2fa91.exe"C:\Users\Admin\AppData\Local\Temp\d9d180756af8d9d4e320bcefbe2e9dcab604082309e92b0cf6b582fc37c2fa91.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3640 -s 2203⤵
- Program crash
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-
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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=1428 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:81⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3640 -ip 36401⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/3640-30-0x0000000001660000-0x0000000003F6D000-memory.dmp
memory/3640-32-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3640-35-0x0000000001660000-0x0000000003F6D000-memory.dmp
memory/3640-34-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3640-14-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3640-15-0x0000000001660000-0x0000000003F6D000-memory.dmp
memory/3640-28-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3640-33-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3640-31-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4844-10-0x0000000004A20000-0x000000000732D000-memory.dmp
memory/4844-11-0x0000000004A20000-0x000000000732D000-memory.dmp
memory/4844-29-0x0000000004A20000-0x000000000732D000-memory.dmp
memory/4844-13-0x0000000010004000-0x0000000010005000-memory.dmp
memory/4844-12-0x0000000077C81000-0x0000000077DA1000-memory.dmp