bumblebee | 1abd17b10f565bbae870ecc1634cd3c15e80f5d001f748bc112d000e67093669

General

Target

projectr.dll
Size

1.8MB
MD5

996df34af37534606d59b126eafe0dcb
SHA1

f1d3f199ee1aa2ff917b76ad41a64a2a6771f198
SHA256

1abd17b10f565bbae870ecc1634cd3c15e80f5d001f748bc112d000e67093669
SHA512

462de3cb0029777103d1fe93b7fc2f190033f2ac669c48724853d544f532d2f28c6439e7f198fb1e336145f354ef589b0922c355c7eedab2995d1b37604d03a4

Score

10^/10

bumblebee 236a evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

236a

C2

146.19.173.191:443

205.218.26.106:335

133.228.15.13:127

60.3.192.137:146

146.70.124.97:443

40.178.16.145:137

216.149.130.58:162

121.214.140.226:358

54.200.237.168:311

85.217.238.89:286

23.82.141.11:443

135.49.247.231:357

105.99.153.173:436

226.179.144.85:474

115.177.167.79:268

23.29.115.172:443

242.165.229.167:492

238.78.243.167:401

28.192.253.108:405

82.217.32.8:253

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	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxVideo	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse	regsvr32.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__	regsvr32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\FADT\VBOX__	regsvr32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__	regsvr32.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	regsvr32.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	regsvr32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	regsvr32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	regsvr32.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-1-5-21-790309383-526510583-3802439154-1000\SOFTWARE\Wine	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe
1640	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\projectr.dll
1⤵
- 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:1640

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

1

T1082

Virtualization/Sandbox Evasion

4

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1640-54-0x000007FEFBCF1000-0x000007FEFBCF3000-memory.dmp

Filesize
8KB

Download
memory/1640-55-0x00000000025B0000-0x00000000026C6000-memory.dmp

Filesize
1.1MB

Download
memory/1640-57-0x00000000025B0000-0x00000000026C6000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads