bumblebee | a3e7f3ea8f906a546002bfd60a18dd732efb0d42f9fd056b1f1a9c91bf17486e

General

Target

ton/documents.lnk

Score

10^/10

bumblebee 1209 evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

1209

C2

142.11.211.32:443

146.59.116.49:443

192.236.155.219:443

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

Processes:

rundll32.exe

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

Processes:

rundll32.exe

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

Processes:

rundll32.exe

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

Processes:

rundll32.exe

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

Processes:

rundll32.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\SOFTWARE\Wine	rundll32.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

rundll32.exe

pid	Process
308	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 42 IoCs

Processes:

rundll32.exe

pid	Process
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe
308	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

cmd.exe

description	pid	Process	procid_target
PID 1476 wrote to memory of 308	1476	cmd.exe	28
PID 1476 wrote to memory of 308	1476	cmd.exe	28
PID 1476 wrote to memory of 308	1476	cmd.exe	28

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\ton\documents.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:1476
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" aerobraking.dat,vcsfile
  2⤵
  - 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 use of NtCreateThreadExHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  PID:308

Network

MITRE ATT&CK Enterprise v6

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/308-88-0x0000000000000000-mapping.dmp

Download
memory/308-92-0x0000000001E00000-0x0000000001F60000-memory.dmp

Filesize
1.4MB

Download
memory/1476-54-0x000007FEFC311000-0x000007FEFC313000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads