bumblebee | 1914b8c8cbb22ccebcdeb2c968e41f9113c9ea02179bae858cb76e477c3eb0b7

Analysis

max time kernel
45s
max time network
49s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
01-09-2022 19:56

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General

Target

HKpiLfqChJKPLc.dll
Size

1.2MB
MD5

a2a55bdae16915aea3bc1933b04eb5e1
SHA1

83e2082f4b30e6475fdf0eeb435f7ef8500363a4
SHA256

6b3a8f1b3ee2f33912815aa18ed89184ffcc0ddf8619b7551aba216e20e1fe88
SHA512

46269e04b69f1e8fa6346905becfc3e3cfd08a4ec781b11ef4d16b7c4d70fba5186245986b31f68f57866f755c133c248d057e9ea5ccbbb83175e6905401a9f8
SSDEEP

24576:v2g6iSk124v3QMwo04WbKpHd/bq2Nf6lRcN5AWwem6EU0MmJO85:ug6iH13l04yK7/bERcLwBLKU

Score

10^/10

bumblebee 0109 evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

0109

238.135.187.178:122

139.250.85.120:389

48.125.193.25:152

114.213.187.231:380

111.253.120.98:250

226.62.116.55:344

167.157.111.216:424

172.237.68.92:206

16.58.16.45:200

250.119.214.35:204

3.103.169.104:449

241.138.197.72:484

217.78.123.134:168

111.153.255.170:258

44.157.167.56:261

88.38.249.218:141

124.110.55.236:298

248.92.195.241:424

244.202.83.43:409

106.233.170.108:279

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-1-5-21-4063495947-34355257-727531523-1000\SOFTWARE\Wine	regsvr32.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1900	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe
1900	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\HKpiLfqChJKPLc.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:1900

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/1900-54-0x000007FEFBEE1000-0x000007FEFBEE3000-memory.dmp

Filesize
8KB

Download
memory/1900-55-0x0000000002580000-0x0000000002696000-memory.dmp

Filesize
1.1MB

Download
memory/1900-57-0x0000000002580000-0x0000000002696000-memory.dmp

Filesize
1.1MB

Download