bumblebee | 46ad48137ac8f8fae753f6072888d355a38556a9372b82599cba23b803eead32

Target

run.bat
Size

50B
MD5

c4fa41e7d1ed643cb7f3258b377fb164
SHA1

58e0cc9409fc00365b1f4cf212e63f3acbfa3f10
SHA256

19595435b3bff0250da79c1fd62711aafbce71ea85eb4ad91b41817368e69d35
SHA512

f30e59baf05aa35852aab853c06299b66c50e656c8faa4d627558ee0ec78a9068577456d394d9c19062868a88fce34655b0ac2f7446f125e727106723eefa68c

Score

10^/10

bumblebee 236r evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

236r

54.38.136.111:443

103.200.32.188:492

74.57.128.223:112

13.2.200.200:338

228.194.82.251:473

247.224.208.140:372

0.151.228.146:282

192.119.77.241:443

186.150.217.235:221

50.41.225.93:478

50.167.186.112:239

173.77.219.120:201

187.210.45.242:299

239.11.133.48:421

207.6.99.3:471

98.28.11.39:201

193.239.152.108:242

133.209.39.126:217

146.19.173.202:443

97.194.155.116:446

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-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Wine	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe
3900	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2964 wrote to memory of 3900	2964	cmd.exe	82
PID 2964 wrote to memory of 3900	2964	cmd.exe	82

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\run.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\m3n4rat.dll,#6
  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:3900

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/3900-131-0x0000023021560000-0x0000023021676000-memory.dmp

Filesize
1.1MB

Download
memory/3900-132-0x00007FFF1B3C0000-0x00007FFF1B3D0000-memory.dmp

Filesize
64KB

Download