bumblebee | 90923ced3d4068824d8b0708434ffab89ba71ecfadacd306ada936ef7ca8f9db

General

Target

projectr.dll
Size

1.8MB
MD5

546d975e638d044bc23c7f1bf4122d26
SHA1

2efd0d398b648d5c70db7d15b1893eb19519ae74
SHA256

287055194e83ab2a8d91ef4d187de57345c19018cf3a85024c4fd20c64ad689e
SHA512

7e4709e4dd18965966466334870488b4469e9920c5ae5bbc8bbd2249d2071744ba9c3d169be5d1d9280555465fc8659df4e7059a67f5ceca7f76dc8aa388a610

Score

10^/10

bumblebee 236a evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

236a

C2

146.19.173.191:443

205.218.26.106:335

133.228.15.13:127

60.3.192.137:146

146.70.124.97:443

40.178.16.145:137

216.149.130.58:162

121.214.140.226:358

54.200.237.168:311

85.217.238.89:286

23.82.141.11:443

135.49.247.231:357

105.99.153.173:436

226.179.144.85:474

115.177.167.79:268

23.29.115.172:443

242.165.229.167:492

238.78.243.167:401

28.192.253.108:405

82.217.32.8:253

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\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
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe
1488	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\projectr.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:1488

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/1488-54-0x000007FEFB9F1000-0x000007FEFB9F3000-memory.dmp

Filesize
8KB

Download
memory/1488-55-0x00000000024F0000-0x0000000002606000-memory.dmp

Filesize
1.1MB

Download
memory/1488-57-0x00000000024F0000-0x0000000002606000-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