bumblebee | f7359c0753f90c0d86f77052ea05029ef644c7aa0a51cef4c92a193985e32c6d

Resubmissions

04-10-2022 07:33

221004-jdj4bshec6 10

04-10-2022 07:27

221004-h97ntshcg8 3

Analysis

max time kernel
386s
max time network
412s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
04-10-2022 07:33

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Invoice_5192_october_PDF.iso
Size

3.1MB
MD5

be78cdcec94c8840177f6ff4aee34308
SHA1

affe6055e02f6810b5824f1f310a2a4eb19db1e4
SHA256

17da2f6eafb65540a89058b0b285a34c9dad8772eeecca92dde03f9560b3e76d
SHA512

71170b9638d4ef1a9294b071696c241691938e9e9b8c8be682eeb386cbbf96bcc91e910468e2c6a834e74a09c7f6eb20f15a0f3e1b7b5938ae3fd27c45ff7fdf
SSDEEP

49152:mHUV3vWVjM+Ajfsa7w7O66nh3+fKsWxN5lqyMR3yxyMy96Tc7TB1wcSIllyFzxk1:UVIcdi33LV

Score

10^/10

bumblebee 0310 evasion trojan

Malware Config

Extracted

Family

bumblebee

Botnet

0310

192.119.74.28:443

54.38.138.5:443

45.141.58.37:443

146.70.147.39:443

146.70.149.48:443

103.144.139.158:443

rc4.plain

Signatures

BumbleBee
BumbleBee is a webshell malware written in C++.
trojan bumblebee

Enumerates VirtualBox registry keys 2 TTPs 15 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxService	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxVideo	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxService	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxService	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxVideo	rundll32.exe

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 9 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\DSDT\VBOX__	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	rundll32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__	rundll32.exe
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
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\FADT\VBOX__	rundll32.exe

Looks for VirtualBox Guest Additions in registry 2 TTPs 3 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	rundll32.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	rundll32.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	rundll32.exe

Checks BIOS information in registry 2 TTPs 9 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\VideoBiosVersion	rundll32.exe
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
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\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 3 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-1-5-21-3845472200-3839195424-595303356-1000\SOFTWARE\Wine	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\SOFTWARE\Wine	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\SOFTWARE\Wine	rundll32.exe

Suspicious use of NtCreateThreadExHideFromDebugger 3 IoCs

pid	Process
1644	rundll32.exe
1976	rundll32.exe
944	rundll32.exe

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

System Information Discovery
T1082

Opens file in notepad (likely ransom note) 2 IoCs

ransomware

pid	Process
1828	NOTEPAD.EXE
1972	Notepad.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1644	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe
1976	rundll32.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: 33	1320	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1320	AUDIODG.EXE
Token: 33	1320	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1320	AUDIODG.EXE
Token: SeRestorePrivilege	1752	7zG.exe
Token: 35	1752	7zG.exe
Token: SeSecurityPrivilege	1752	7zG.exe
Token: SeSecurityPrivilege	1752	7zG.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1752	7zG.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 1988	1152	cmd.exe	28
PID 1152 wrote to memory of 1988	1152	cmd.exe	28
PID 1152 wrote to memory of 1988	1152	cmd.exe	28
PID 1056 wrote to memory of 1856	1056	WScript.exe	40
PID 1056 wrote to memory of 1856	1056	WScript.exe	40
PID 1056 wrote to memory of 1856	1056	WScript.exe	40
PID 1856 wrote to memory of 1644	1856	cmd.exe	42
PID 1856 wrote to memory of 1644	1856	cmd.exe	42
PID 1856 wrote to memory of 1644	1856	cmd.exe	42
PID 572 wrote to memory of 2024	572	WScript.exe	45
PID 572 wrote to memory of 2024	572	WScript.exe	45
PID 572 wrote to memory of 2024	572	WScript.exe	45
PID 2024 wrote to memory of 1976	2024	cmd.exe	47
PID 2024 wrote to memory of 1976	2024	cmd.exe	47
PID 2024 wrote to memory of 1976	2024	cmd.exe	47
PID 1972 wrote to memory of 1984	1972	WScript.exe	60
PID 1972 wrote to memory of 1984	1972	WScript.exe	60
PID 1972 wrote to memory of 1984	1972	WScript.exe	60
PID 1984 wrote to memory of 944	1984	cmd.exe	62
PID 1984 wrote to memory of 944	1984	cmd.exe	62
PID 1984 wrote to memory of 944	1984	cmd.exe	62

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Invoice_5192_october_PDF.iso
1⤵
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\System32\isoburn.exe
  "C:\Windows\System32\isoburn.exe" "C:\Users\Admin\AppData\Local\Temp\Invoice_5192_october_PDF.iso"
  2⤵
  PID:1988

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:1356

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x554
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1320

C:\Windows\system32\verclsid.exe
"C:\Windows\system32\verclsid.exe" /S /C {0B2C9183-C9FA-4C53-AE21-C900B0C39965} /I {0C733A8A-2A1C-11CE-ADE5-00AA0044773D} /X 0x401
1⤵
PID:568

C:\Program Files\7-Zip\7zG.exe
"C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\AppData\Local\Temp\Invoice_5192_october_PDF\" -ad -an -ai#7zMap4760:128:7zEvent27776
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1752

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\refresheners\dispiritedlyComprehensible.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Windows\System32\cmd.exe
  cmd /c ""C:\refresheners\unthinkableIsthmus.cmd" rundl"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1856
- - C:\Windows\system32\rundll32.exe
    rundll32 refresheners\autobiographical.dat,runprog
    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:1644

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\refresheners\dispiritedlyComprehensible.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:572
- C:\Windows\System32\cmd.exe
  cmd /c ""C:\refresheners\unthinkableIsthmus.cmd" rundl"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2024
- - C:\Windows\system32\rundll32.exe
    rundll32 refresheners\autobiographical.dat,runprog
    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:1976

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\refresheners\dispiritedlyComprehensible.vbs"
1⤵
PID:1948

C:\Windows\System32\NOTEPAD.EXE
"C:\Windows\System32\NOTEPAD.EXE" C:\refresheners\unthinkableIsthmus.cmd
1⤵
- Opens file in notepad (likely ransom note)
PID:1828

C:\Windows\System32\Notepad.exe
"C:\Windows\System32\Notepad.exe" C:\refresheners\dispiritedlyComprehensible.vbs
1⤵
- Opens file in notepad (likely ransom note)
PID:1972

C:\Windows\system32\cmd.exe
cmd /c ""C:\refresheners\unthinkableIsthmus.cmd" "
1⤵
PID:2032

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\refresheners\dispiritedlyComprehensible.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\System32\cmd.exe
  cmd /c ""C:\refresheners\unthinkableIsthmus.cmd" rundl"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1984
- - C:\Windows\system32\rundll32.exe
    rundll32 c:\refresheners\autobiographical.dat,runprog
    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
    PID:944

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\refresheners\unthinkableIsthmus.cmd

Filesize
67B

MD5
7d5e79ba518ebf8d2d75b2d1ce8be0a5

SHA1
23bfb82162dd8c5e9d4419ed7de24d99da3ed887

SHA256
7e96320b387203fb394baf5a87c297ed6a879505634b4bfc47e7f502c07ca94e

SHA512
8a1295fb75ed408cc4bd3dad9ecd0fbf9a643974d333f64eb65e96cb75c1813a95f5faf377d61eb60768efd078512de3163b9541ff46dd38f915b5c8fff84d78

Download Submit
memory/944-99-0x0000000001E80000-0x0000000001FD3000-memory.dmp

Filesize
1.3MB

Download
memory/1152-54-0x000007FEFB991000-0x000007FEFB993000-memory.dmp

Filesize
8KB

Download
memory/1644-90-0x0000000001F40000-0x0000000002093000-memory.dmp

Filesize
1.3MB

Download
memory/1976-91-0x0000000001F80000-0x00000000020D3000-memory.dmp

Filesize
1.3MB

Download