bumblebee | ae55a2fd04b046681718c4c0c527faaa4f951980cd8d619ab512a98a32d61c85

Analysis

max time kernel
91s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
08-07-2022 10:47

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General

Target

ae55a2fd04b046681718c4c0c527faaa4f951980cd8d619ab512a98a32d61c85.dll
Size

2.0MB
MD5

b38e751e7101c3cc163c6fd77fda959f
SHA1

ef125f6a233f7036157d38a02ad09de8226adc13
SHA256

ae55a2fd04b046681718c4c0c527faaa4f951980cd8d619ab512a98a32d61c85
SHA512

8c0d7434419e07d27d772239ae2c32bd95ad57979e10a8bd7808f1f21215b42ff9497c430127a8b3ec77f9544f9a11a078c1af45776fea1d69775625928c0819

Score

10^/10

bumblebee 707a evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

707a

172.240.175.194:183

171.85.135.192:358

223.7.203.157:407

45.153.242.183:443

211.68.220.197:102

174.119.130.65:369

202.41.22.30:314

58.10.113.168:308

12.33.69.160:285

205.185.123.137:443

112.188.178.13:332

168.205.228.104:480

83.218.135.147:151

228.175.209.140:269

240.114.36.128:411

8.109.227.172:304

142.11.245.185:443

214.233.117.120:167

198.135.200.7:254

73.74.56.146:272

rc4.plain

Signatures

BumbleBee
BumbleBee is a webshell malware written in C++.
trojan bumblebee

Enumerates VirtualBox registry keys 2 TTPs 5 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxService	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxVideo	regsvr32.exe

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	regsvr32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\FADT\VBOX__	regsvr32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__	regsvr32.exe

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	regsvr32.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\SystemBiosDate	regsvr32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	regsvr32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	regsvr32.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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Wine	regsvr32.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
760	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe
760	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ae55a2fd04b046681718c4c0c527faaa4f951980cd8d619ab512a98a32d61c85.dll
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
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:760

Network

MITRE ATT&CK Enterprise v6

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

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Downloads

memory/760-130-0x0000000002DC0000-0x0000000002ED6000-memory.dmp

Filesize
1.1MB

Download
memory/760-131-0x0000000002DC0000-0x0000000002ED6000-memory.dmp

Filesize
1.1MB

Download
memory/760-132-0x0000000002DC0000-0x0000000002ED6000-memory.dmp

Filesize
1.1MB

Download
memory/760-133-0x00007FF897420000-0x00007FF897430000-memory.dmp

Filesize
64KB

Download