bumblebee | dd2eaf56b19754263073fbf64bc00e236de3053c303ffc63bf0e7821b6ac6d64

General

Target

stats.dll
Size

1.4MB
MD5

c978236aacb56975104135b96301fd79
SHA1

bc9e252dbbbb25a7d3895abf7873ad14ee36c268
SHA256

b8e8284f3e999db3333a0a8e79132cce4462ccc3c5875b1be7f5e9a2d8e44966
SHA512

b6f3a476361b2fe7f262486a0b9167555ec77e5915def548c4b4b01bc93cb0e853b1f64f7177998f4216476e8e5e0cc7151f017252a9f0caef1da3c2baa3871c
SSDEEP

24576:OsgeDrXBXQS1d7ns+pHB7e0L3/SQUOyxv0dzf9044vunpt:OsgeF7ZsaJR3/SQUO+0dLcv

Score

10^/10

bumblebee 276l evasion loader

Malware Config

Extracted

Family

bumblebee

Botnet

276l

C2

172.93.193.124:443

45.153.241.64:443

45.153.241.19:443

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	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-1-5-21-3551809350-4263495960-1443967649-1000\SOFTWARE\Wine	regsvr32.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	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe
1728	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\stats.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
- Checks for VirtualBox DLLs, possible anti-VM trick
- Suspicious behavior: EnumeratesProcesses
PID:1728

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/1728-5-0x0000000077460000-0x0000000077609000-memory.dmp

Filesize
1.7MB

Download
memory/1728-6-0x0000000077460000-0x0000000077609000-memory.dmp

Filesize
1.7MB

Download
memory/1728-4-0x0000000002570000-0x0000000002686000-memory.dmp

Filesize
1.1MB

Download
memory/1728-3-0x0000000002570000-0x0000000002686000-memory.dmp

Filesize
1.1MB

Download
memory/1728-1-0x0000000002570000-0x0000000002686000-memory.dmp

Filesize
1.1MB

Download
memory/1728-0-0x00000000774B1000-0x00000000774B2000-memory.dmp

Filesize
4KB

Download
memory/1728-7-0x0000000002570000-0x0000000002686000-memory.dmp

Filesize
1.1MB

Download
memory/1728-9-0x0000000077460000-0x0000000077609000-memory.dmp

Filesize
1.7MB

Download
memory/1728-8-0x0000000077460000-0x0000000077609000-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