Analysis
- max time kernel
163s - max time network
180s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
10/04/2024, 14:09
General
- Target c97b8bffcbe424cbc2a6e1135068d071c6f4e8f020fccd2db3dbee3aa80102ac.dll
- Size 2.7MB
- Sample240410-rf5rtaae44
- SHA256 c97b8bffcbe424cbc2a6e1135068d071c6f4e8f020fccd2db3dbee3aa80102ac
Malware Config
Extracted
-
bumblebee
-
ALL0604
-
192.236.198.63:443
Signatures
- BumbleBee
BumbleBee is a loader malware written in C++.
- Enumerates VirtualBox registry keys 2 TTPs 5 IoCs
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
- Blocklisted process makes network request 6 IoCs
- Checks BIOS information in registry 2 TTPs 3 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.
- Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
- Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\c97b8bffcbe424cbc2a6e1135068d071c6f4e8f020fccd2db3dbee3aa80102ac.dll,#11⤵
- Enumerates VirtualBox registry keys
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Looks for VirtualBox Guest Additions in registry
- Blocklisted process makes network request
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Checks for VirtualBox DLLs, possible anti-VM trick
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
memory/3920-0-0x000001F79F9F0000-0x000001F79FC3B000-memory.dmp
memory/3920-2-0x00007FF875BD0000-0x00007FF875DC5000-memory.dmp
memory/3920-1-0x000001F79F9F0000-0x000001F79FC3B000-memory.dmp
memory/3920-3-0x00007FF875BD0000-0x00007FF875DC5000-memory.dmp
memory/3920-4-0x00007FF875BD0000-0x00007FF875DC5000-memory.dmp
memory/3920-5-0x00007FF875BD0000-0x00007FF875DC5000-memory.dmp
memory/3920-6-0x00007FF875BD0000-0x00007FF875DC5000-memory.dmp
memory/3920-7-0x00007FF875BC0000-0x00007FF875BD0000-memory.dmp
memory/3920-8-0x000001F79F9F0000-0x000001F79FC3B000-memory.dmp
memory/3920-9-0x000001F79F9F0000-0x000001F79FC3B000-memory.dmp
memory/3920-10-0x00007FF875BD0000-0x00007FF875DC5000-memory.dmp
memory/3920-11-0x000001F79F9F0000-0x000001F79FC3B000-memory.dmp
memory/3920-12-0x000001F79F9F0000-0x000001F79FC3B000-memory.dmp
memory/3920-13-0x000001F79F9F0000-0x000001F79FC3B000-memory.dmp
memory/3920-14-0x000001F79F9F0000-0x000001F79FC3B000-memory.dmp
memory/3920-15-0x000001F79F9F0000-0x000001F79FC3B000-memory.dmp
memory/3920-16-0x000001F79F9F0000-0x000001F79FC3B000-memory.dmp
memory/3920-17-0x000001F79F9F0000-0x000001F79FC3B000-memory.dmp
memory/3920-18-0x000001F79F9F0000-0x000001F79FC3B000-memory.dmp
memory/3920-19-0x000001F79F9F0000-0x000001F79FC3B000-memory.dmp
memory/3920-20-0x000001F79F9F0000-0x000001F79FC3B000-memory.dmp