bumblebee | f0fcd5ac8a1d9b9a20f29067fdc35655c5cae9c5f93c349ada658937bf280957

Analysis

max time kernel
43s
max time network
47s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
06-10-2022 19:18

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General

Target

RunDLL-1.bat
Size

38B
MD5

0eae2d10e50f41f835e0a936d51aeecb
SHA1

659fa2dd0c9595495bb2cfbe84b7377bf3f9dff4
SHA256

97bf1020a4db537f06ee1f753b30ffae973fccec68171105e015a3b3f9eef694
SHA512

b23e4d177c9821d6ac9420113c62b9e7f4490c3f96c69971ec328b46956510a7b2eb6d2a8192fc6680487d90bc992be6db7d65a52ca9d00f0c66b9850bb14dc1

Score

10^/10

bumblebee 0510 evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

0510

51.83.250.102:443

150.125.181.52:443

208.115.216.246:443

192.119.77.44:443

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\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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest	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\SystemBiosDate	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	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

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1296	rundll32.exe

Suspicious behavior: EnumeratesProcesses 42 IoCs

pid	Process
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe
1296	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1272 wrote to memory of 1296	1272	cmd.exe	28
PID 1272 wrote to memory of 1296	1272	cmd.exe	28
PID 1272 wrote to memory of 1296	1272	cmd.exe	28

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\RunDLL-1.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:1272
- C:\Windows\system32\rundll32.exe
  rundll32.exe commissioning.dat,ctrlrun
  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 use of NtCreateThreadExHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  PID:1296

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/1296-55-0x0000000001D50000-0x0000000001EA3000-memory.dmp

Filesize
1.3MB

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