Analysis
- max time kernel
146s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
06/07/2023, 11:34
General
- Target ba7f2e5474dcf373fe5a109792db2c844768cdef44ed92a0a7224373357422cd.exe
- Size 358KB
- Sample230706-npv27aad29
- SHA256 ba7f2e5474dcf373fe5a109792db2c844768cdef44ed92a0a7224373357422cd
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.
- Loads dropped DLL 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- 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 Program Files directory 1 IoCs
- Drops file in Windows directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ba7f2e5474dcf373fe5a109792db2c844768cdef44ed92a0a7224373357422cd.exe"C:\Users\Admin\AppData\Local\Temp\ba7f2e5474dcf373fe5a109792db2c844768cdef44ed92a0a7224373357422cd.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ba7f2e5474dcf373fe5a109792db2c844768cdef44ed92a0a7224373357422cd.exe"C:\Users\Admin\AppData\Local\Temp\ba7f2e5474dcf373fe5a109792db2c844768cdef44ed92a0a7224373357422cd.exe"2⤵
- Checks QEMU agent file
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
System.dll
memory/4020-145-0x0000000003230000-0x00000000059C4000-memory.dmp
memory/4020-146-0x0000000003230000-0x00000000059C4000-memory.dmp
memory/4108-147-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4108-148-0x0000000001660000-0x0000000003DF4000-memory.dmp
memory/4108-161-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4108-162-0x0000000001660000-0x0000000003DF4000-memory.dmp
memory/4108-163-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4108-164-0x0000000001660000-0x0000000003DF4000-memory.dmp
memory/4108-165-0x0000000001660000-0x0000000003DF4000-memory.dmp
memory/4108-166-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4108-167-0x0000000034470000-0x00000000347BA000-memory.dmp