bumblebee | 13a9cd2c532831e30d652104de92af1ea3b84754471217d0b736a30c72921b8f

General

Target

037ae9d6d426d941891dd738f8bc499c93a5429efcfa261ef2755aed550d2d7c.dll
Size

1.3MB
MD5

e0f372f1c60780342de156d1255402bc
SHA1

3f8b9792bd430ee579d798fa5ab6b5854d22b2ab
SHA256

037ae9d6d426d941891dd738f8bc499c93a5429efcfa261ef2755aed550d2d7c
SHA512

abb3789e02e66d169439252aaeeade8eaea1ec1e7955a2b3fe929bed525ca1d43e7c44f8a59f3c4388cffd68f04950861c23d325b964c72d3227fa5e7bb0f188

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\VideoBiosVersion	regsvr32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	regsvr32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	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
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe
948	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\037ae9d6d426d941891dd738f8bc499c93a5429efcfa261ef2755aed550d2d7c.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:948

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/948-54-0x000007FEFB971000-0x000007FEFB973000-memory.dmp

Filesize
8KB

Download
memory/948-55-0x0000000002540000-0x0000000002656000-memory.dmp

Filesize
1.1MB

Download
memory/948-57-0x0000000002540000-0x0000000002656000-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