bumblebee | 790695bf25129b28c2f7c1de1428bdf5db8acb34b3a1d38e41c72a80d7278069

General

Target

project details.lnk
Size

995B
MD5

9495ea4d16857eedd24f80dd980f1c12
SHA1

4a4743cbdcaa59cde9bd00dee81fe1c74c1a0538
SHA256

c6ec33118502a7d05057a3e9d203ae569f664d9899a5a5e955c0cdf23cf6be00
SHA512

8f4054bf35854ae2411fa8561fdd024051ec6ddb1ad9af017ad5dd31ebbebe998f2eb4bf8c2af815fbc7519f7876235cd460db9ce986d821eeaea4056fa67c94

Score

10^/10

bumblebee 1810 evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

1810

C2

198.98.59.245:443

45.61.185.227:443

45.153.242.242:443

146.19.173.148:443

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\VBoxVideo	rundll32.exe
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

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-1-5-21-999675638-2867687379-27515722-1000\SOFTWARE\Wine	rundll32.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1120	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 42 IoCs

pid	Process
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe
1120	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 1696	1952	cmd.exe	27
PID 1952 wrote to memory of 1696	1952	cmd.exe	27
PID 1952 wrote to memory of 1696	1952	cmd.exe	27
PID 1696 wrote to memory of 1120	1696	cmd.exe	28
PID 1696 wrote to memory of 1120	1696	cmd.exe	28
PID 1696 wrote to memory of 1120	1696	cmd.exe	28

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\project details.lnk"
1⤵
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c NaTfRzldqphjNX.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1696
- - C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe kcftZUmITYgNCj.dll,regtask
    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:1120

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/1120-90-0x0000000001DD0000-0x0000000001F23000-memory.dmp

Filesize
1.3MB

Download
memory/1952-54-0x000007FEFB8B1000-0x000007FEFB8B3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads