bumblebee | e8776d71e69ff47fd99eccfa87c70517624f3685dd75c29f415babf8c9721265

Analysis

max time kernel
42s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
15-09-2022 10:01

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General

Target

document_stolenimages.lnk
Size

825B
MD5

e677519b182abd3fe941293160c5f3ec
SHA1

6e1dc62f875cc2f97114c468b4c98dbfef0adeb7
SHA256

937a0c4449ee87685d7b2c2c2c364108b698ba6fbfd583d9bd2a6521cdf08d8c
SHA512

73f0fc0951cc31aff63ce830bbafa00c40520d97b15445bc5e10074427df88e40d241b4b1d7e1dcbe72b3b692e4100ec4416287edd62c9b438c888a4054d3791

Score

10^/10

bumblebee vps1 evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

VPS1

45.147.229.23:443

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

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

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools	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-1-5-21-3845472200-3839195424-595303356-1000\SOFTWARE\Wine	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 14 IoCs

pid	Process
672	rundll32.exe
672	rundll32.exe
672	rundll32.exe
672	rundll32.exe
672	rundll32.exe
672	rundll32.exe
672	rundll32.exe
672	rundll32.exe
672	rundll32.exe
672	rundll32.exe
672	rundll32.exe
672	rundll32.exe
672	rundll32.exe
672	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 936	1972	cmd.exe	28
PID 1972 wrote to memory of 936	1972	cmd.exe	28
PID 1972 wrote to memory of 936	1972	cmd.exe	28
PID 936 wrote to memory of 672	936	cmd.exe	29
PID 936 wrote to memory of 672	936	cmd.exe	29
PID 936 wrote to memory of 672	936	cmd.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\document_stolenimages.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start rundll32 neqw.dll,IternalJob
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:936
- - C:\Windows\system32\rundll32.exe
    rundll32 neqw.dll,IternalJob
    3⤵
    - Enumerates VirtualBox registry keys
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Looks for VirtualBox Guest Additions in registry
    - Looks for VMWare Tools registry key
    - Checks BIOS information in registry
    - Identifies Wine through registry keys
    - Suspicious behavior: EnumeratesProcesses
    PID:672

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/672-92-0x0000000001D80000-0x0000000001FCD000-memory.dmp

Filesize
2.3MB

Download
memory/1972-54-0x000007FEFC511000-0x000007FEFC513000-memory.dmp

Filesize
8KB

Download