bumblebee | 6233c74d44b7206f00d9c86ccac29577e3ea5f4b8a4a8cf8faf64d159d0e10bd

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-02-2025 00:42

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General

Target

6233c74d44b7206f00d9c86ccac29577e3ea5f4b8a4a8cf8faf64d159d0e10bd.dll
Size

2.7MB
MD5

4d9d368872e1d819968c6aba4938fd61
SHA1

dc22a03c0bca99fef3a8e9e801fe9e43cda240be
SHA256

6233c74d44b7206f00d9c86ccac29577e3ea5f4b8a4a8cf8faf64d159d0e10bd
SHA512

ba176147280cfa54670c49befcc7f49ce50a4a41214718e647a1fe19ae4b61fce1fecd7785bb284a20f14523ff8d91a03e72a36f0e4703b5c284cc3f85070129
SSDEEP

49152:ydhvtC1w3DBJXHUlz6b13GtTfOL7vPsBjLAgbIYETghETcltJf:ydysBVHWz6b13GtTfOL7vPsBjLAgbIYl

Score

10^/10

bumblebee all0604 defense_evasion loader

Malware Config

Extracted

Family

bumblebee

Botnet

ALL0604

192.236.198.63:443

Signatures

BumbleBee
BumbleBee is a loader malware written in C++.
loader bumblebee
Bumblebee family
bumblebee

Enumerates VirtualBox registry keys 2 TTPs 5 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxService	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxVideo	rundll32.exe

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\FADT\VBOX__	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__	rundll32.exe

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	rundll32.exe

Checks BIOS information in registry 2 TTPs 3 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	rundll32.exe

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.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\SOFTWARE\Wine	rundll32.exe

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.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	rundll32.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6233c74d44b7206f00d9c86ccac29577e3ea5f4b8a4a8cf8faf64d159d0e10bd.dll,#1
1⤵
- Enumerates VirtualBox registry keys
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Looks for VirtualBox Guest Additions in registry
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Checks for VirtualBox DLLs, possible anti-VM trick
- Suspicious behavior: EnumeratesProcesses
PID:2900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2900-3-0x0000000076DF0000-0x0000000076F99000-memory.dmp

Filesize
1.7MB

Download
memory/2900-2-0x0000000002110000-0x000000000235B000-memory.dmp

Filesize
2.3MB

Download
memory/2900-1-0x0000000002110000-0x000000000235B000-memory.dmp

Filesize
2.3MB

Download
memory/2900-4-0x0000000076DF0000-0x0000000076F99000-memory.dmp

Filesize
1.7MB

Download
memory/2900-7-0x0000000076DF0000-0x0000000076F99000-memory.dmp

Filesize
1.7MB

Download
memory/2900-6-0x0000000076DF0000-0x0000000076F99000-memory.dmp

Filesize
1.7MB

Download
memory/2900-5-0x0000000076DF0000-0x0000000076F99000-memory.dmp

Filesize
1.7MB

Download
memory/2900-0-0x0000000076E41000-0x0000000076E42000-memory.dmp

Filesize
4KB

Download
memory/2900-8-0x0000000076E41000-0x0000000076E42000-memory.dmp

Filesize
4KB

Download
memory/2900-9-0x0000000076DF0000-0x0000000076F99000-memory.dmp

Filesize
1.7MB

Download