Analysis
- max time kernel
94s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
26/01/2025, 15:13
General
- Target b3a35c9beb42fc52298539dcb87a098f182de78c6c732496f23cc0f341030d29.exe
- Size 1.8MB
- Sample250126-sl4mdavlht
- SHA256 b3a35c9beb42fc52298539dcb87a098f182de78c6c732496f23cc0f341030d29
Malware Config
Signatures
- GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
- Gcleaner family
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Downloads MZ/PE file 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b3a35c9beb42fc52298539dcb87a098f182de78c6c732496f23cc0f341030d29.exe"C:\Users\Admin\AppData\Local\Temp\b3a35c9beb42fc52298539dcb87a098f182de78c6c732496f23cc0f341030d29.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Downloads MZ/PE file
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 5242⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2904 -ip 29041⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
download[1].htm
memory/2904-15-0x0000000000400000-0x0000000000C4D000-memory.dmp
memory/2904-20-0x0000000000400000-0x0000000000C4D000-memory.dmp
memory/2904-3-0x0000000000400000-0x0000000000C4D000-memory.dmp
memory/2904-4-0x0000000000400000-0x0000000000C4D000-memory.dmp
memory/2904-6-0x0000000000400000-0x0000000000C4D000-memory.dmp
memory/2904-7-0x0000000000400000-0x0000000000C4D000-memory.dmp
memory/2904-11-0x0000000010000000-0x000000001001C000-memory.dmp
memory/2904-0-0x0000000000400000-0x0000000000C4D000-memory.dmp
memory/2904-2-0x0000000000401000-0x0000000000426000-memory.dmp
memory/2904-17-0x0000000000401000-0x0000000000426000-memory.dmp
memory/2904-18-0x0000000000400000-0x0000000000C4D000-memory.dmp
memory/2904-21-0x0000000000400000-0x0000000000C4D000-memory.dmp
memory/2904-1-0x0000000077D34000-0x0000000077D36000-memory.dmp
memory/2904-23-0x0000000000400000-0x0000000000C4D000-memory.dmp
memory/2904-28-0x0000000000400000-0x0000000000C4D000-memory.dmp
memory/2904-34-0x0000000000400000-0x0000000000C4D000-memory.dmp
memory/2904-40-0x0000000000400000-0x0000000000C4D000-memory.dmp
memory/2904-41-0x0000000000401000-0x0000000000426000-memory.dmp