bumblebee | acb4007ac2eb34445394cbe66bd45782ff77119e05e5aa2b58567ef3a07b7755

General

Target

9hloq0.dll
Size

2.6MB
MD5

2719b9bc4e8a2f3f033b9ebf75ba05cb
SHA1

9bfdeae0f5dd641c5d9b945dc91e64321f21587b
SHA256

78beecc828a622f7cde900a68e5653438b60f9bdaf5d733996c499241c6d7130
SHA512

e137ed1116e571df3c3beaaf451f026e3d2b7669dd59f1ac2d15c3d6c2669404b6ab2651ce374704f29120ccddba040cce1067ae2ec350b907426b184885f871
SSDEEP

49152:7J6uk7ObJRXJ/tcgZOrclKg3uAqI6nwopOwmJQai7SfsEP5YnWPAIO/aGqvxK+nt:7J6uGObJRXJ/ygZOrclKYuAqInRJQaiS

Score

10^/10

bumblebee 2504r evasion loader

Malware Config

Extracted

Family

bumblebee

Botnet

2504r

C2

104.168.236.99:443

23.82.141.184:443

172.241.29.169:443

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\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
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe
1564	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9hloq0.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:1564

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/1564-0-0x00000000772A1000-0x00000000772A2000-memory.dmp

Filesize
4KB

Download
memory/1564-1-0x0000000002050000-0x000000000229B000-memory.dmp

Filesize
2.3MB

Download
memory/1564-5-0x0000000077250000-0x00000000773F9000-memory.dmp

Filesize
1.7MB

Download
memory/1564-4-0x0000000077250000-0x00000000773F9000-memory.dmp

Filesize
1.7MB

Download
memory/1564-2-0x0000000002050000-0x000000000229B000-memory.dmp

Filesize
2.3MB

Download
memory/1564-3-0x0000000077250000-0x00000000773F9000-memory.dmp

Filesize
1.7MB

Download
memory/1564-6-0x0000000002050000-0x000000000229B000-memory.dmp

Filesize
2.3MB

Download
memory/1564-7-0x0000000077250000-0x00000000773F9000-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