bumblebee | 2812091cefca5599b7ce8bc45bce1040b0d739a9fc75f83adc27388720ef5d0c

General

Target

lel.bat
Size

56B
MD5

9f2b2610806e40e0f97f813709748858
SHA1

609140b82f50d7f2d47c131cb7375e76e9cf1b61
SHA256

f4e987c1ff5611b780a6286b3505f095d0e29c1ff50aea1df4d44556bc6d3b65
SHA512

7a4bf3fff43853ac53cd99d6b3cbed1eadc65a593eb427adad87ed59fee5b9d76137029b46cfa8a97303204d1d48053de776a6dabd9fcee74ad9350694cd017c

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\FADT\VBOX__	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\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-1-5-21-1083475884-596052423-1669053738-1000\SOFTWARE\Wine	rundll32.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe
1332	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 904 wrote to memory of 1332	904	cmd.exe	28
PID 904 wrote to memory of 1332	904	cmd.exe	28
PID 904 wrote to memory of 1332	904	cmd.exe	28

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\lel.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:904
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\hm.dll,#4
  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:1332