Analysis
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max time kernel
88s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
06-10-2022 18:09
Static task
static1
General
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Target
run.bat
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Size
70B
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MD5
e08d2741b47c394f4866db651f977f9a
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SHA1
84a5da4c4f57c2361ab1ec301ef017c83b9faf43
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SHA256
50051db5b2341c24960e5ae3287ec05d6ccf48164c915768d20943d8f6d95b68
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SHA512
e89f14f12bca8cb2a71df4973aa3414630ba717aa7214d1d9cd5504a5c34c26f4d8b46df2cd3572f152e5bf5de97b2b55d8fc5f9ece33f750654e36b45fed685
Malware Config
Extracted
Family
bumblebee
Botnet
0610
C2
45.147.231.156:443
208.115.216.246:443
23.29.115.164:443
45.61.186.18:443
51.83.250.102:443
192.119.77.44:443
rc4.plain
Signatures
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Enumerates VirtualBox registry keys 2 TTPs 5 IoCs
description ioc Process 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse 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\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.
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 2784 rundll32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe 2784 rundll32.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 460 wrote to memory of 2784 460 cmd.exe 82 PID 460 wrote to memory of 2784 460 cmd.exe 82
Processes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\run.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:460 -
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\tidbits.dll,CreateEvent2⤵
- 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:2784
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