bumblebee | 8bf1c0d4bf445006046e26fce66e8c45d034c23ec3f73a14d5230b090bf3662d

Analysis

max time kernel
43s
max time network
47s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
06-09-2022 20:52

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General

Target

NOwPpfBRiTFTYD.dll
Size

1.8MB
MD5

b3ab9b4d0f69155cc7df3f72b647afc1
SHA1

4698056d14689edbf8d7ef1d6b0b327644eecee5
SHA256

8bf1c0d4bf445006046e26fce66e8c45d034c23ec3f73a14d5230b090bf3662d
SHA512

8de0d2cf3be709740e5205bfcb3dbff9077cbaa1ec6cd3c52f7b36d7c6e23940c4230e8c378d0f575952f9120c46e9f44008a4a9f2b52032d9671692bdd8e3d5
SSDEEP

24576:T3HZCk3SJpRELLhZZ63PdojKS9S5Kz+qKyTENoQk9jYfcoucV:T3HZCKLJKVoj/YtOFYfcIV

Score

10^/10

bumblebee 0609 evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

0609

84.167.88.233:345

215.145.61.202:308

137.40.97.52:338

246.203.125.82:132

70.248.138.150:450

246.254.85.162:227

101.50.12.208:402

14.62.107.26:472

205.185.121.173:443

177.8.108.125:102

187.128.248.53:325

107.189.1.156:443

85.76.146.210:369

41.1.133.165:470

249.69.10.40:322

155.198.230.103:351

33.11.192.227:449

28.229.156.200:263

159.128.17.14:415

46.67.127.195:493

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\RSDT\VBOX__	regsvr32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	regsvr32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\FADT\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\VideoBiosVersion	regsvr32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	regsvr32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	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
1672	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe
1672	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\NOwPpfBRiTFTYD.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:1672

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/1672-54-0x000007FEFB7F1000-0x000007FEFB7F3000-memory.dmp

Filesize
8KB

Download
memory/1672-55-0x0000000001EE0000-0x0000000001FF6000-memory.dmp

Filesize
1.1MB

Download
memory/1672-57-0x0000000001EE0000-0x0000000001FF6000-memory.dmp

Filesize
1.1MB

Download