Analysis
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max time kernel
90s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
11/06/2022, 14:20
Static task
static1
Behavioral task
behavioral1
Sample
32ber/32ber.dll
Resource
win7-20220414-en
windows7_x64
Behavioral task
behavioral2
Sample
32ber/32ber.dll
Resource
win10v2004-20220414-en
windows10-2004_x64
Behavioral task
behavioral3
Sample
32ber/qsdqsd.lnk
Resource
win7-20220414-en
windows7_x64
General
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Target
32ber/32ber.dll
-
Size
3.2MB
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MD5
a899ebf9331b90b5931b73a71362cedc
-
SHA1
fd53b8071f2843ae08febb214bc6f971c58cf6b6
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SHA256
9e5a484d501af67a87c6f0f553360e5dc4c4fbf24c01724cf10eecd34df6be3c
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SHA512
176823050ab467f4d0c4163ccca3533acf34b96137406be5ee261d47f4e1181e12c0196bc668750f9024f6d7bcb63d9667ec447fc4cb0bfbb387a2d7cbaa3fae
Malware Config
Extracted
bumblebee
1904r
199.80.55.44:443
209.141.59.96:443
23.106.160.120:443
Signatures
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Enumerates VirtualBox registry keys 2 TTPs 5 IoCs
description ioc Process 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxVideo rundll32.exe -
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
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
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.
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 -
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.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Wine rundll32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe 4708 rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\32ber\32ber.dll,#11⤵
- 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:4708