Analysis
- max time kernel
147s - max time network
141s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
20/09/2023, 13:22
General
- Target Gaelde2.exe
- Size 1.2MB
- Sample230920-ql79fsge3y
- SHA256 a0b0db8c6dc77550bb990118e37e3dda30255f3abd39c04089bb120887d225ce
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 1 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 50 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Gaelde2.exe"C:\Users\Admin\AppData\Local\Temp\Gaelde2.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Gaelde2.exe"C:\Users\Admin\AppData\Local\Temp\Gaelde2.exe"2⤵
- Checks QEMU agent file
- Checks computer location settings
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/3216-39-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3216-32-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3216-45-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3216-44-0x00000000333C0000-0x000000003370A000-memory.dmp
memory/3216-43-0x0000000077141000-0x0000000077261000-memory.dmp
memory/3216-21-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3216-22-0x0000000001660000-0x0000000002DC8000-memory.dmp
memory/3216-23-0x00000000771C8000-0x00000000771C9000-memory.dmp
memory/3216-42-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3216-24-0x0000000001660000-0x0000000002DC8000-memory.dmp
memory/3216-25-0x00000000771E5000-0x00000000771E6000-memory.dmp
memory/3216-41-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3216-40-0x0000000001660000-0x0000000002DC8000-memory.dmp
memory/5084-16-0x0000000004590000-0x0000000005CF8000-memory.dmp
memory/5084-17-0x0000000004590000-0x0000000005CF8000-memory.dmp
memory/5084-20-0x0000000073FA0000-0x0000000073FA6000-memory.dmp
memory/5084-19-0x0000000077141000-0x0000000077261000-memory.dmp
memory/5084-18-0x0000000077141000-0x0000000077261000-memory.dmp