bumblebee | 3463f026ce1c325931e285b587b82f7f690db2e75929c7edd154df1e14f38c93

General

Target

3463f026ce1c325931e285b587b82f7f690db2e75929c7edd154df1e14f38c93.dll
Size

3.7MB
MD5

4820f3c0c2b85d9e8ebb121fd35cb3bc
SHA1

e645cb78d7e100c4a3f13eb5f88e09cd31377b26
SHA256

3463f026ce1c325931e285b587b82f7f690db2e75929c7edd154df1e14f38c93
SHA512

35f8b12982b229be8a96aa867050c0ecb1807e58cbf6acef0d214cf049f933e8e240a4d1022429d6a99a0315b4af47af37c01b1decb28a7b5fe621354673d7f2
SSDEEP

49152:VwJ6bUFSuLjWTrbfQlrd088iG1oO9BDA80xZ8MT+:VwCPc088iG1oO9BDA80xZ8MT+

Score

10^/10

bumblebee 2104r evasion loader

Malware Config

Extracted

Family

bumblebee

Botnet

2104r

C2

28.11.143.222:443

71.1.188.122:443

49.12.241.35:443

89.222.221.14:443

185.33.87.53:443

108.62.118.56:443

rc4.plain

Signatures

BumbleBee
BumbleBee is a loader malware written in C++.
loader 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\VBoxSF	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxVideo	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxService	rundll32.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__	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\FADT\VBOX__	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__	rundll32.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	rundll32.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	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	rundll32.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-1-5-21-2610426812-2871295383-373749122-1000\SOFTWARE\Wine	rundll32.exe

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	rundll32.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe
2336	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3463f026ce1c325931e285b587b82f7f690db2e75929c7edd154df1e14f38c93.dll,#1
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
- Checks for VirtualBox DLLs, possible anti-VM trick
- Suspicious behavior: EnumeratesProcesses
PID:2336

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

4

T1497

Credential Access

Discovery

Query Registry

5

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

4

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2336-1-0x0000000077C80000-0x0000000077E29000-memory.dmp

Filesize
1.7MB

Download
memory/2336-0-0x0000000001CD0000-0x0000000001F1B000-memory.dmp

Filesize
2.3MB

Download
memory/2336-3-0x0000000077C80000-0x0000000077E29000-memory.dmp

Filesize
1.7MB

Download
memory/2336-2-0x0000000001CD0000-0x0000000001F1B000-memory.dmp

Filesize
2.3MB

Download
memory/2336-4-0x0000000077C80000-0x0000000077E29000-memory.dmp

Filesize
1.7MB

Download
memory/2336-5-0x0000000077C80000-0x0000000077E29000-memory.dmp

Filesize
1.7MB

Download
memory/2336-6-0x0000000077C80000-0x0000000077E29000-memory.dmp

Filesize
1.7MB

Download
memory/2336-7-0x0000000077C80000-0x0000000077E29000-memory.dmp

Filesize
1.7MB

Download
memory/2336-8-0x000000007FFF0000-0x000000007FFF1000-memory.dmp

Filesize
4KB

Download
memory/2336-9-0x0000000077C80000-0x0000000077E29000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads