bumblebee | 7cc64ce87ef3ad289ad6c934c3380ff3a53373eb5f5ea11790fc67882ed2e795

General

Target

documents.lnk
Size

2KB
MD5

9df6df3b98d90c2a892c2120876b6339
SHA1

f1634315324fb3bb1384c4197be3bef0cf447a83
SHA256

c307536aa32637598b607bc03c11daaf50c7adffcae47b22c29c3deb5302d674
SHA512

1499b16b317e7020438cfbc0af7e7345687a2bffacbe6b354ee404ba5f79d659d798df8446569afc05e1c2f43d19d60a9a3423fa7fec4b120dfc989ad804c855

Score

10^/10

bumblebee 226r evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

226r

C2

24.60.199.116:370

145.100.67.15:360

101.96.171.173:155

182.52.208.138:119

6.138.120.113:452

103.175.16.47:443

99.189.165.204:103

174.83.182.164:221

138.22.181.180:246

51.139.193.203:488

196.99.108.92:240

67.127.134.116:328

160.173.252.174:275

202.106.192.129:291

194.202.95.243:336

174.166.74.219:203

198.104.198.26:492

118.101.230.66:260

192.119.77.241:443

181.108.184.158:156

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-1-5-21-2277218442-1199762539-2004043321-1000\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
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe
1912	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 1912	1964	cmd.exe	29
PID 1964 wrote to memory of 1912	1964	cmd.exe	29
PID 1964 wrote to memory of 1912	1964	cmd.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\documents.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" m4ros.dll,NyGlisDIKN
  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:1912

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/1912-92-0x0000000002470000-0x0000000002586000-memory.dmp

Filesize
1.1MB

Download
memory/1964-54-0x000007FEFBA51000-0x000007FEFBA53000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads