bumblebee | ddb9895f9e74d3e7db4e94aa77338fdc221ed29f29857a9752545cddcf8f45a6

Analysis

max time kernel
35s
max time network
42s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
27-10-2022 16:41

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General

Target

ddb9895f9e74d3e7db4e94aa77338fdc221ed29f29857a9752545cddcf8f45a6.dll
Size

3.6MB
MD5

1e97fac877fd16aa937bdc35714cc058
SHA1

ef7687fd12df2a102e443a9cfa6c09a1f16b0035
SHA256

ddb9895f9e74d3e7db4e94aa77338fdc221ed29f29857a9752545cddcf8f45a6
SHA512

3d62557bfa3903b59275a0d9ff910e4382a4d574d7d27d1c23d9755368b735ac3be2f49f7021816051cf85a92e913cb5b7d4b3cafe8aded0e602900875caba90
SSDEEP

24576:E3RgLkXy4o8Bhf1d9I25Xroti/mb8RqrU9dveOgTRXfXAffHjonc64PZmwfzbpSc:EBgLOM8bfVI25lm6n9klBfGt6AZbZSq

Score

10^/10

bumblebee 2010m evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

2010m

23.106.160.112:443

146.59.116.146:443

172.93.193.220:443

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-1-5-21-999675638-2867687379-27515722-1000\SOFTWARE\Wine	regsvr32.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
900	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 42 IoCs

pid	Process
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe
900	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ddb9895f9e74d3e7db4e94aa77338fdc221ed29f29857a9752545cddcf8f45a6.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:900

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/900-54-0x000007FEFC3B1000-0x000007FEFC3B3000-memory.dmp

Filesize
8KB

Download
memory/900-57-0x0000000001F20000-0x0000000002073000-memory.dmp

Filesize
1.3MB

Download
memory/900-55-0x0000000001F20000-0x0000000002073000-memory.dmp

Filesize
1.3MB

Download