bumblebee | c65c51ed60f91a92789c4b056821ef51252baa2a1679a6513ab008acf0464ccb

General

Target

c65c51ed60f91a92789c4b056821ef51252baa2a1679a6513ab008acf0464ccb.dll
Size

3.7MB
MD5

8e7115ea580f39c152e4d4bc4472c402
SHA1

4ea1f1d8a01f251fa5db350f72b04a1d11028fb0
SHA256

c65c51ed60f91a92789c4b056821ef51252baa2a1679a6513ab008acf0464ccb
SHA512

bde81a4da80dda9e06815b153caa2dcaea874bfd973c9d24b1e935e0c88a0d094dcce0b153d9866a87b2b06bc636a30b23d3fe27e345b4a2ee174b52acc44619
SSDEEP

98304:XZo5q0spyUTJkqVnIY0z7ceiVNhPvpx3:XZwqlp51krrz4vp

Score

10^/10

bumblebee 2104a evasion loader

Malware Config

Extracted

Family

bumblebee

Botnet

2104a

C2

282.19.133.12:443

91.122.18.192:443

185.156.172.62:443

72.123.65.11:443

149.255.35.167:443

172.241.27.146:443

rc4.plain

Signatures

BumbleBee
BumbleBee is a loader malware written in C++.
loader bumblebee
Bumblebee family
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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxService	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxVideo	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-1-5-21-1488793075-819845221-1497111674-1000\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
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe
2100	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c65c51ed60f91a92789c4b056821ef51252baa2a1679a6513ab008acf0464ccb.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:2100

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/2100-0-0x0000000076D61000-0x0000000076D62000-memory.dmp

Filesize
4KB

Download
memory/2100-3-0x0000000002240000-0x000000000248B000-memory.dmp

Filesize
2.3MB

Download
memory/2100-2-0x0000000076D10000-0x0000000076EB9000-memory.dmp

Filesize
1.7MB

Download
memory/2100-5-0x0000000076D10000-0x0000000076EB9000-memory.dmp

Filesize
1.7MB

Download
memory/2100-6-0x0000000076D10000-0x0000000076EB9000-memory.dmp

Filesize
1.7MB

Download
memory/2100-1-0x0000000002240000-0x000000000248B000-memory.dmp

Filesize
2.3MB

Download
memory/2100-4-0x0000000076D10000-0x0000000076EB9000-memory.dmp

Filesize
1.7MB

Download
memory/2100-7-0x0000000076D61000-0x0000000076D62000-memory.dmp

Filesize
4KB

Download
memory/2100-8-0x0000000076D10000-0x0000000076EB9000-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