bumblebee | 0301a8c454da987b5ef35e0b2242903b809e2bec76d495d172c3824d4e396c61

General

Target

file.dll
Size

1.3MB
MD5

18aca7481b515ac30a6e2122fcc02a28
SHA1

6ba63d95420b58e8a98d886159afe4ec529d08b9
SHA256

0301a8c454da987b5ef35e0b2242903b809e2bec76d495d172c3824d4e396c61
SHA512

7110d6887c53c314ad7e41fbed6ee0167fc97694fa74fa39879a563648bfec6c756103d9ce1410a2f3150d461f582a805d0610dad1fa5929f40451caa350ac1c

Score

10^/10

bumblebee 246a evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

246a

C2

231.215.229.228:485

69.52.231.230:347

239.99.55.244:383

128.197.89.141:438

100.75.172.149:488

23.82.141.11:443

107.77.228.163:260

88.232.241.45:176

51.83.253.131:443

80.194.203.32:143

18.248.93.197:110

200.194.145.202:359

154.56.0.111:443

154.207.124.132:129

174.104.34.167:296

84.224.237.39:382

195.250.7.94:370

237.251.89.198:174

81.39.2.175:407

139.203.193.38:443

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-1-5-21-790309383-526510583-3802439154-1000\SOFTWARE\Wine	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe
2004	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\file.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 behavior: EnumeratesProcesses
PID:2004

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

4

T1497

Credential Access

Discovery

Query Registry

5

T1012

System Information Discovery

1

T1082

Virtualization/Sandbox Evasion

4

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2004-54-0x000007FEFBA41000-0x000007FEFBA43000-memory.dmp

Filesize
8KB

Download
memory/2004-55-0x0000000002510000-0x0000000002626000-memory.dmp

Filesize
1.1MB

Download
memory/2004-57-0x0000000002510000-0x0000000002626000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads