bumblebee | c40e825d90e9da117b13b4116135abf326644feb417392cd3fe2adc6a7976e80

General

Target

documents.lnk
Size

2KB
MD5

956d949aea33054cc315c13c2f31092c
SHA1

4c37e4e5e8a6d04cd593a66e5be5e289440a612f
SHA256

c23fff6940d9b97ac9dce943bef6e9066291981ffe0f2c1b3f4fbc345203a857
SHA512

56eb41c38d626445143620f6e3dcfec59b7c7b6532d57685cee0651e0887c2b092d9d5310afc3d630819d69e2e49ca66ede38034f26e1097a2bd6d873aec8271

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-1-5-21-790309383-526510583-3802439154-1000\SOFTWARE\Wine	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe
1572	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 240 wrote to memory of 1572	240	cmd.exe	28
PID 240 wrote to memory of 1572	240	cmd.exe	28
PID 240 wrote to memory of 1572	240	cmd.exe	28

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\documents.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:240
- 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:1572

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

4

T1497

Credential Access

Discovery

Query Registry

5

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

4

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/240-54-0x000007FEFBFB1000-0x000007FEFBFB3000-memory.dmp

Filesize
8KB

Download
memory/1572-92-0x0000000002440000-0x0000000002557000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads