bumblebee | 4633d69edc7b5071d83d6d186abbb4cf68c475731a0c070d2f66d7e31b861bd8

General

Target

b0df5ebbe715a93804e3313338175ee9d6d4282ae66ab595d00dcfab75adb710.dll
Size

1.7MB
MD5

b70fddecccb484de9bd858ef9d5b4e29
SHA1

8402ae5159d6e507ab0131a865a3181698914156
SHA256

b0df5ebbe715a93804e3313338175ee9d6d4282ae66ab595d00dcfab75adb710
SHA512

24958dde755fd76a67f0b57187d4f45748eeececf0e2fd3a0e85865749b49439a8bb48150f78d838343b7348bc7450dc25ec75ddeb4a5b06130f691105e932eb

Score

10^/10

bumblebee 286a evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

286a

C2

40.126.50.56:271

185.62.58.175:443

3.27.187.15:317

28.236.100.216:424

75.72.64.79:334

156.148.26.226:446

104.83.15.21:107

199.236.144.121:106

6.23.156.239:194

211.73.200.45:129

240.230.245.154:407

209.141.58.141:443

35.225.143.246:179

212.151.132.229:145

163.192.104.228:409

138.84.254.103:385

52.100.187.210:219

74.205.65.255:245

233.96.129.4:276

114.35.182.27:323

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\FADT\VBOX__	regsvr32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__	regsvr32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\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\SystemBiosVersion	regsvr32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	regsvr32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	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-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Wine	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe
1784	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b0df5ebbe715a93804e3313338175ee9d6d4282ae66ab595d00dcfab75adb710.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:1784

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/1784-54-0x000007FEFB7C1000-0x000007FEFB7C3000-memory.dmp

Filesize
8KB

Download
memory/1784-55-0x0000000002640000-0x0000000002756000-memory.dmp

Filesize
1.1MB

Download
memory/1784-57-0x0000000002640000-0x0000000002756000-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