bumblebee | 97fed9c9f49640addb8150b4c464e715607781381ff5668fcffd931a255a03ec

Analysis

max time kernel
139s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
09/06/2022, 17:12

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General

Target

21bd2c88898f8fea3ba9dddb1c9e3cfb8f279d884099830dbda16acdde273587.dll
Size

1.6MB
MD5

69cd7700a687c190dcf824fee2a022b0
SHA1

2ee9d9dbca105772c8320ef4bfd437d9bf6664d0
SHA256

21bd2c88898f8fea3ba9dddb1c9e3cfb8f279d884099830dbda16acdde273587
SHA512

77b12b707ea334cde153a526d879086068f4134178b190b466e48c9c439828087a32187601879a095afeea33923a37de2345804b6c8d5eb478e45a28c0c0db25

Score

10^/10

bumblebee 7rr evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

7rr

103.175.16.107:443

194.135.33.149:443

154.56.0.241:443

23.254.201.97:443

45.147.229.101:443

185.62.58.169:443

192.236.249.68:443

193.239.84.254:443

37.120.198.248:443

146.19.173.139:443

46.21.153.145:443

149.255.35.134:443

45.147.229.50:443

212.114.52.46:443

103.175.16.122:443

146.19.253.49:443

68.233.238.105:443

64.44.135.250:443

103.175.16.121:443

64.44.102.6:443

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-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Wine	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe
864	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\21bd2c88898f8fea3ba9dddb1c9e3cfb8f279d884099830dbda16acdde273587.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:864

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/864-130-0x0000000002E90000-0x0000000002FA7000-memory.dmp

Filesize
1.1MB

Download
memory/864-131-0x0000000002E90000-0x0000000002FA7000-memory.dmp

Filesize
1.1MB

Download
memory/864-132-0x0000000002E90000-0x0000000002FA7000-memory.dmp

Filesize
1.1MB

Download
memory/864-133-0x00007FFC89C40000-0x00007FFC89C50000-memory.dmp

Filesize
64KB

Download