bumblebee | 50c6618f82461059cbe4ee858759d39f990e4431dac74adbe345e8678f0f82ac

General

Target

07m2se/documents.lnk
Size

2KB
MD5

516c04aa962dfa0e35e7c992c0eb88a9
SHA1

0ebc08f00d9eb38a72b43be9809162d3362a35de
SHA256

a7885b210054b39cb48f1f95a6697480dfa5f81f5439b69b493ae36a0266d1df
SHA512

92a0fa2f6c7dab55bf60079b33a00dd96aabc19a4a391bfc458a696da62e78035e251f7856a2f4c5665db115305f0aef97c5ab4fd4571c96a147b79fc370e1fe

Score

10^/10

bumblebee 507r evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

507r

C2

146.19.173.184:443

41.15.71.157:274

66.9.9.138:154

36.201.196.202:367

173.200.61.240:100

116.241.116.41:410

242.232.106.206:162

10.195.46.61:489

249.112.226.98:243

130.242.219.205:423

154.56.0.113:443

179.5.59.188:228

217.246.42.10:346

169.197.227.201:474

231.228.102.246:186

185.165.82.120:182

74.230.15.244:376

94.88.121.46:403

120.181.249.142:177

138.141.158.45:217

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\VideoBiosVersion	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	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-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Wine	rundll32.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
524	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
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe
524	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 908	1668	cmd.exe	29
PID 1668 wrote to memory of 908	1668	cmd.exe	29
PID 1668 wrote to memory of 908	1668	cmd.exe	29
PID 908 wrote to memory of 524	908	cmd.exe	30
PID 908 wrote to memory of 524	908	cmd.exe	30
PID 908 wrote to memory of 524	908	cmd.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\07m2se\documents.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start rundll32.exe o7m2se.dll,LLBMPMUsqf
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:908
- - C:\Windows\system32\rundll32.exe
    rundll32.exe o7m2se.dll,LLBMPMUsqf
    3⤵
    - 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:524

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/524-91-0x0000000002460000-0x0000000002576000-memory.dmp

Filesize
1.1MB

Download
memory/1668-54-0x000007FEFC111000-0x000007FEFC113000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads