bumblebee | c124a8541d660881e81ae30a9500f852fc250e200a94966623cb8ed41185da02

General

Target

run.bat
Size

55B
MD5

a1f1828b9e47c0b8f9356ecd1b2da2b3
SHA1

fdd51793c3971be7eef45b22602e834e5c39b761
SHA256

0c5470714540792b882266e2267a7c883a1a22b736ad734c54adf8e8a83b07f4
SHA512

248b1036c88559eb07ada7376b3679130f8021f852bbcd79ffb9972c87cbb1ad7bbfe41f1444249335175d47f89ad27a87cd05a3dc9c832c9a5bb75080adb5d9

Score

10^/10

bumblebee 2006r evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

2006r

C2

149.4.32.76:241

194.104.136.152:443

119.230.89.42:407

45.153.241.234:443

173.45.237.73:444

169.239.191.195:335

173.107.248.213:137

90.108.111.212:276

146.19.173.105:443

216.4.65.112:354

52.6.247.44:324

162.212.72.241:135

114.188.145.216:303

5.109.171.105:392

142.11.216.143:443

87.144.64.172:286

103.250.125.252:491

117.173.171.58:296

157.2.47.226:120

53.50.204.254:356

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

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\RSDT\VBOX__	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\FADT\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-1-5-21-2277218442-1199762539-2004043321-1000\SOFTWARE\Wine	rundll32.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe
1372	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 748 wrote to memory of 1372	748	cmd.exe	29
PID 748 wrote to memory of 1372	748	cmd.exe	29
PID 748 wrote to memory of 1372	748	cmd.exe	29

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\run.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:748
- C:\Windows\System32\rundll32.exe
  C:\Windows\System32\rundll32.exe s3negar.dll,UzduUOtRZB
  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 behavior: EnumeratesProcesses
  PID:1372