bumblebee | 60ae476aec1a3f6616e0c7895dc315760645d0b576acfc3d37737f82e6fbd48a

Analysis

max time kernel
45s
max time network
48s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
06-10-2022 16:49

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General

Target

RunDLL-1.bat
Size

37B
MD5

7a90cce379f52ea107d00fa548e39018
SHA1

33438af9a7c7e8d10e4028dcbd772c168298c3a2
SHA256

608727a7e3ae8591377a6966d2d15f087dd13a5b4668b8d814a8e09b540f4bc3
SHA512

2a3082e6b1441393a3515612d844ca50204c551453fdd6da46d05cefdb425571d9d58005ac0eb64032e55b5ed4778beca4be885ac34091f85d50c585e0e9f0b6

Score

10^/10

bumblebee 0510 evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

0510

51.83.250.102:443

150.125.181.52:443

208.115.216.246:443

192.119.77.44:443

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\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

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-1-5-21-4063495947-34355257-727531523-1000\SOFTWARE\Wine	rundll32.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1596	rundll32.exe

Suspicious behavior: EnumeratesProcesses 42 IoCs

pid	Process
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe
1596	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 1596	1600	cmd.exe	28
PID 1600 wrote to memory of 1596	1600	cmd.exe	28
PID 1600 wrote to memory of 1596	1600	cmd.exe	28

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\RunDLL-1.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Windows\system32\rundll32.exe
  rundll32.exe overpowering.dat,ctrlrun
  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:1596

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/1596-55-0x0000000001E40000-0x0000000001F93000-memory.dmp

Filesize
1.3MB

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