bumblebee | af2ee66b2d500592d403d7e9d2fefca6bb4dfda332517a9d29d510d6cb43fe2c

Analysis

max time kernel
29s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
02-09-2022 19:33

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General

Target

af2ee66b2d500592d403d7e9d2fefca6bb4dfda332517a9d29d510d6cb43fe2c.dll
Size

1.8MB
MD5

8e5b5977740c91b2c6c2c7a1526ce773
SHA1

e09187f29416d8e8b5176cb4cf22cdfdf743313d
SHA256

af2ee66b2d500592d403d7e9d2fefca6bb4dfda332517a9d29d510d6cb43fe2c
SHA512

a006467db7f5457d91a82190c5ecad87d722ba2f82123a8c113279764b3341384d8487709213ec82e26b02a7c750b28576196127fefbbe8876f0716044f06901
SSDEEP

49152:+c3D/V8zHZRDr0VzoLMahBrfWvmn2H6C0n:+g/V8zHZRDWzoLRhBrfWvm2H6C0n

Score

10^/10

bumblebee 3108 evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

3108

247.123.99.147:290

163.159.161.98:338

84.88.36.128:126

213.3.241.78:174

82.124.63.119:343

134.3.181.250:300

165.197.104.159:211

104.168.162.242:443

100.141.139.132:293

228.12.17.45:122

9.12.182.210:246

21.197.211.56:328

128.14.205.155:194

218.163.29.18:219

21.141.107.203:196

214.151.80.130:288

49.167.40.130:467

155.217.214.178:149

197.216.31.35:336

90.184.109.195:201

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-1-5-21-2292972927-2705560509-2768824231-1000\SOFTWARE\Wine	regsvr32.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1020	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe
1020	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\af2ee66b2d500592d403d7e9d2fefca6bb4dfda332517a9d29d510d6cb43fe2c.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 use of NtCreateThreadExHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1020

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1020-54-0x000007FEFB5C1000-0x000007FEFB5C3000-memory.dmp

Filesize
8KB

Download
memory/1020-55-0x00000000024F0000-0x0000000002606000-memory.dmp

Filesize
1.1MB

Download
memory/1020-57-0x00000000024F0000-0x0000000002606000-memory.dmp

Filesize
1.1MB

Download