bumblebee | 2b379f9fd440fb0e6d5e6dc6f65c4fbf17d31840add7f182ceec78514cedd94a

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
27-10-2022 15:52

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

OUBcVbISpNCsLG.bat
Size

1KB
MD5

242b45ffc92adbcc688bbba8e9fb4c89
SHA1

a4edae5f16f1788ff43c7dfc328753308738af58
SHA256

8daa11b913b572783934fde9e047bd2a3112dc5a7a35720ca1e3cb3cd74ce84a
SHA512

2771f636e046302bdf18e568901b52ed61d5cd9db3b226cc6bd900999cd10236e17c9c5cfb874e1e3a001cb5f5c1f4a84b445480018ff4e38433f77da4f3f5e3

Score

10^/10

bumblebee 2510 evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

2510

69.46.15.158:443

135.125.241.35:443

172.86.120.141:443

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

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse	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

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

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1720	rundll32.exe

Suspicious behavior: EnumeratesProcesses 42 IoCs

pid	Process
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe
1720	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1052 wrote to memory of 1720	1052	cmd.exe	29
PID 1052 wrote to memory of 1720	1052	cmd.exe	29
PID 1052 wrote to memory of 1720	1052	cmd.exe	29

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\OUBcVbISpNCsLG.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:1052
- C:\Windows\system32\rundll32.exe
  rundll32 lXNqexIxTwBWAS.dll,newrequest
  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:1720

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1720-55-0x0000000001E30000-0x0000000001F83000-memory.dmp

Filesize
1.3MB

Download