Analysis
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max time kernel
156s -
max time network
178s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
19-10-2022 20:39
Static task
static1
Behavioral task
behavioral1
Sample
DETAILS.lnk
Resource
win7-20220812-en
windows7-x64
Behavioral task
behavioral2
Sample
DETAILS.lnk
Resource
win10v2004-20220901-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
HcDTvUxhMvlLtX.dll
Resource
win7-20220812-en
windows7-x64
Behavioral task
behavioral4
Sample
HcDTvUxhMvlLtX.dll
Resource
win10v2004-20220812-en
windows10-2004-x64
Behavioral task
behavioral5
Sample
lZrFnyxCjMmiEL.bat
Resource
win7-20220812-en
windows7-x64
General
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Target
lZrFnyxCjMmiEL.bat
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Size
1KB
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MD5
51e6d846c536f09bb850653ae80658ba
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SHA1
00d1f6aeb5eb543ea5dbcbabd1ecf150d835e252
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SHA256
88da40b5d0a5d9b1adeda161d460ea7598211ab52bc2eac03a098eb665994a16
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SHA512
1f1043cd472355f5532eb18678b3ebfd1b805910c8b3f9faa6430a4d84434eeab6d5f561cfa1dc568371e82d7d6fdb49d3e98865dfc858c318d038ca9fcaafbc
Malware Config
Extracted
bumblebee
1710
198.98.59.245:443
146.19.173.148:443
45.61.185.227:443
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\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.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Wine rundll32.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 4972 rundll32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe 4972 rundll32.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4796 wrote to memory of 4972 4796 cmd.exe 82 PID 4796 wrote to memory of 4972 4796 cmd.exe 82
Processes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\lZrFnyxCjMmiEL.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:4796 -
C:\Windows\system32\rundll32.exerundll32.exe HcDTvUxhMvlLtX.dll,FileUpload2⤵
- 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:4972
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