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Overview
overview
10Static
static
required d...ts.iso
windows7-x64
3required d...ts.iso
windows10-2004-x64
3OUBcVbISpNCsLG.bat
windows7-x64
10OUBcVbISpNCsLG.bat
windows10-2004-x64
10documents.lnk
windows7-x64
10documents.lnk
windows10-2004-x64
10lXNqexIxTwBWAS.dll
windows7-x64
3lXNqexIxTwBWAS.dll
windows10-2004-x64
3Analysis
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max time kernel
90s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
27/10/2022, 15:52
Static task
static1
Behavioral task
behavioral1
Sample
required documents.iso
Resource
win7-20220812-en
windows7-x64
Behavioral task
behavioral2
Sample
required documents.iso
Resource
win10v2004-20220901-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
OUBcVbISpNCsLG.bat
Resource
win7-20220812-en
windows7-x64
Behavioral task
behavioral4
Sample
OUBcVbISpNCsLG.bat
Resource
win10v2004-20220812-en
windows10-2004-x64
Behavioral task
behavioral5
Sample
documents.lnk
Resource
win7-20220812-en
windows7-x64
Behavioral task
behavioral6
Sample
documents.lnk
Resource
win10v2004-20220901-en
windows10-2004-x64
Behavioral task
behavioral7
Sample
lXNqexIxTwBWAS.dll
Resource
win7-20220812-en
windows7-x64
Behavioral task
behavioral8
Sample
lXNqexIxTwBWAS.dll
Resource
win10v2004-20220812-en
windows10-2004-x64
General
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Target
documents.lnk
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Size
995B
-
MD5
657e82d44e6e48dc6cb9822bc074e37b
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SHA1
2a8f2a505b1fe7dec3550cc5b2d1969a7aec91a2
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SHA256
9d3b6e8b7bd58f0ff72fb9188e4aefdd988fa86d81043f2850f335bea004b182
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SHA512
16759c899c1c08688885ba4c9b5d8b3a43583b5d2bd8ce3824a0de422cc34dfe5385241e058d7f1862b4a4de0f5ed1727b1a41e0d0e00b87fd7b444d6924ce9a
Malware Config
Extracted
bumblebee
2510
69.46.15.158:443
135.125.241.35:443
172.86.120.141:443
Signatures
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Enumerates VirtualBox registry keys 2 TTPs 5 IoCs
description ioc Process 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\VBoxMouse rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxService rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF 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 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation cmd.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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Wine rundll32.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 4604 rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe 4604 rundll32.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1208 wrote to memory of 1660 1208 cmd.exe 78 PID 1208 wrote to memory of 1660 1208 cmd.exe 78 PID 1660 wrote to memory of 4604 1660 cmd.exe 79 PID 1660 wrote to memory of 4604 1660 cmd.exe 79
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\documents.lnk1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1208 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c OUBcVbISpNCsLG.bat2⤵
- Suspicious use of WriteProcessMemory
PID:1660 -
C:\Windows\system32\rundll32.exerundll32 lXNqexIxTwBWAS.dll,newrequest3⤵
- 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:4604
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