bumblebee | ed3aaaa4b1c47b61cc05ff85a48a3e439b1a4acd99e87d1c03cd14ce1f3bc098

General

Target

54bed834c04ae9d6971b63eab0342bf39cf0c4454c7519cfc6861638ca6090bd.dll
Size

1.8MB
MD5

0c96812e195ff482bf9679fe348b3428
SHA1

7c39f792665a5b0619c97415f1080a10b89d9f80
SHA256

54bed834c04ae9d6971b63eab0342bf39cf0c4454c7519cfc6861638ca6090bd
SHA512

ac0b32d21d3c2fde8f16ba5080a6992bbd264a62fb31535f971502276114f18d41f2c668cc7f6de00946c1720fd4ea0aa268cb4cf221ba2e22c049f319f8bc39

Score

10^/10

bumblebee 166a evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

166a

C2

85.239.33.172:443

25.5.198.104:440

223.31.110.102:393

213.226.100.95:443

25.181.64.39:236

199.193.159.46:283

45.138.172.246:443

84.250.88.57:386

145.244.80.29:230

133.17.128.73:319

14.102.170.127:377

1.39.166.217:166

14.40.68.19:391

146.19.173.186:443

199.201.12.90:201

212.110.132.77:289

69.38.43.160:207

131.169.248.28:201

141.178.39.245:323

28.148.236.16:485

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

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe
1972	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\54bed834c04ae9d6971b63eab0342bf39cf0c4454c7519cfc6861638ca6090bd.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:1972

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/1972-54-0x000007FEFC3A1000-0x000007FEFC3A3000-memory.dmp

Filesize
8KB

Download
memory/1972-55-0x00000000025D0000-0x00000000026E7000-memory.dmp

Filesize
1.1MB

Download
memory/1972-57-0x00000000025D0000-0x00000000026E7000-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