bumblebee | d184c7fac35e68924cf520d33fabc0703198756e096592dd31eec6101b5551e5

Resubmissions

10-10-2022 17:13

221010-vrjkhacggj 10

03-06-2022 21:56

03-06-2022 21:55

03-06-2022 21:38

03-06-2022 21:28

Analysis

max time kernel
434s
max time network
439s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
10-10-2022 17:13

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General

Target

documents.lnk
Size

1KB
MD5

dcfc03467dc198612184a307837073d0
SHA1

1fc2d8047e27d14e91c1061a07cc77fd8404747b
SHA256

23e0f3debe5e378bd4ca50ee5243ec67f979ab66507b8ca97310c94706901c4a
SHA512

97ba6aab3917be2da603cc7c9fd629dea478c13b7947400d2bf9bba6676e41b04b5588dc61ee9d39a2121d427bf2a602117fbec0d7071109be69333afbea1afa

Score

10^/10

bumblebee 106r evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

106r

144.19.20.11:443

150.27.81.2:443

46.21.153.145:443

109.45.29.202:443

6.30.139.246:443

236.110.58.103:443

36.110.58.103:443

149.255.35.134:443

9.63.15.101:443

45.147.229.50:443

184.23.74.168:443

139.24.56.111:443

243.45.135.100:443

21.246.85.34:443

79.44.167.23:443

30.17.4.146:443

56.134.87.45:443

16.46.4.333:443

224.145.6.33:443

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-1-5-21-4063495947-34355257-727531523-1000\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
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 860 wrote to memory of 1716	860	cmd.exe	28
PID 860 wrote to memory of 1716	860	cmd.exe	28
PID 860 wrote to memory of 1716	860	cmd.exe	28

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\documents.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:860
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" lipes.dll,oFWkRTFwjm
  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:1716

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/860-54-0x000007FEFB741000-0x000007FEFB743000-memory.dmp

Filesize
8KB

Download
memory/1716-92-0x0000000002470000-0x0000000002587000-memory.dmp

Filesize
1.1MB

Download