bumblebee | c97b8bffcbe424cbc2a6e1135068d071c6f4e8f020fccd2db3dbee3aa80102ac

General

Target

c97b8bffcbe424cbc2a6e1135068d071c6f4e8f020fccd2db3dbee3aa80102ac.dll
Size

2.7MB
MD5

59baede0aac3a38c8578aa8fef89d960
SHA1

19fa63af83dfed8023f10147c33c8edb6aabb1b4
SHA256

c97b8bffcbe424cbc2a6e1135068d071c6f4e8f020fccd2db3dbee3aa80102ac
SHA512

f87e5285a22df54906ee18ba71334beba5dd36cf8cfb3ac8f0f44e8bfe8441ba95e3c6787dc9cb9c274f01aec724500d5d2a3ff3c466f8efdf08bac8b35400ed
SSDEEP

49152:7CkeRD2DBKMpRd8qsToHaQBVeytTEmu6+lzz7JP1KV3jgjO4gYAPLokp6vVkTMU:7CkdB/pRdksaQBVNtTEmu6+lzz7JP1KT

Score

10^/10

bumblebee all0604 evasion loader

Malware Config

Extracted

Family

bumblebee

Botnet

ALL0604

C2

192.236.198.63:443

Signatures

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

Enumerates VirtualBox registry keys 2 TTPs 5 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

rundll32.exe

description	ioc	process
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest	rundll32.exe

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

rundll32.exe

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

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

rundll32.exe

description ioc process

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

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

Processes:

rundll32.exe

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.
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\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

Processes:

rundll32.exe

description ioc process

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

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\SOFTWARE\Wine	rundll32.exe

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

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

rundll32.exe

pid	process
2888	rundll32.exe
2888	rundll32.exe
2888	rundll32.exe
2888	rundll32.exe
2888	rundll32.exe
2888	rundll32.exe
2888	rundll32.exe
2888	rundll32.exe
2888	rundll32.exe
2888	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c97b8bffcbe424cbc2a6e1135068d071c6f4e8f020fccd2db3dbee3aa80102ac.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:2888

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

4

T1497

Credential Access

Discovery

Query Registry

5

T1012

Virtualization/Sandbox Evasion

4

T1497

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

memory/2888-0-0x0000000001E00000-0x000000000204B000-memory.dmp

Filesize
2.3MB

Download
memory/2888-1-0x0000000001E00000-0x000000000204B000-memory.dmp

Filesize
2.3MB

Download
memory/2888-2-0x0000000077C90000-0x0000000077E39000-memory.dmp

Filesize
1.7MB

Download
memory/2888-3-0x0000000077C90000-0x0000000077E39000-memory.dmp

Filesize
1.7MB

Download
memory/2888-4-0x0000000077C90000-0x0000000077E39000-memory.dmp

Filesize
1.7MB

Download
memory/2888-5-0x0000000077C90000-0x0000000077E39000-memory.dmp

Filesize
1.7MB

Download
memory/2888-6-0x0000000077C90000-0x0000000077E39000-memory.dmp

Filesize
1.7MB

Download
memory/2888-7-0x0000000077C90000-0x0000000077E39000-memory.dmp

Filesize
1.7MB

Download
memory/2888-8-0x0000000077C90000-0x0000000077E39000-memory.dmp

Filesize
1.7MB

Download
memory/2888-9-0x0000000077C90000-0x0000000077E39000-memory.dmp

Filesize
1.7MB

Download
memory/2888-10-0x000000007FFF0000-0x000000007FFF1000-memory.dmp

Filesize
4KB

Download
memory/2888-11-0x0000000077C90000-0x0000000077E39000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads