Analysis
- max time kernel
147s - max time network
146s - platform
windows7_x64 - resource
win7-20230831-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 27 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 6 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/2120-17-0x0000000003420000-0x0000000004B88000-memory.dmp
memory/2120-18-0x0000000003420000-0x0000000004B88000-memory.dmp
memory/2120-19-0x00000000776B0000-0x0000000077859000-memory.dmp
memory/2120-20-0x00000000778A0000-0x0000000077976000-memory.dmp
memory/2120-21-0x0000000074C00000-0x0000000074C06000-memory.dmp
memory/2592-22-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2592-23-0x0000000001470000-0x0000000002BD8000-memory.dmp
memory/2592-24-0x00000000776B0000-0x0000000077859000-memory.dmp
memory/2592-46-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2592-47-0x0000000001470000-0x0000000002BD8000-memory.dmp
memory/2592-48-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2592-49-0x0000000001470000-0x0000000002BD8000-memory.dmp
memory/2592-50-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2592-52-0x0000000032F70000-0x0000000033273000-memory.dmp