Analysis
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max time kernel
91s -
max time network
103s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 19:24
Static task
static1
Behavioral task
behavioral1
Sample
3403923f1a151466a81c2c7a1fda617b7fbb43b1b8b0325e26e30ed06b6eb936.dll
Resource
win7-20220414-en
windows7_x64
0 signatures
0 seconds
General
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Target
3403923f1a151466a81c2c7a1fda617b7fbb43b1b8b0325e26e30ed06b6eb936.dll
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Size
2.4MB
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MD5
7a35502a5df5334c0ffde46303b1f56d
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SHA1
5729508b725b7add8d2158aee2d0a3bc18a7a38a
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SHA256
3403923f1a151466a81c2c7a1fda617b7fbb43b1b8b0325e26e30ed06b6eb936
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SHA512
a460bc541f0b68ba5c5ddbea3f78e1e933c50a119baaba3b753ef44bf1e40802b88cd97205ae064c18dcfebb7d79a7acdf769c1327962a6b90d35fa9047d4ed7
Malware Config
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
rundll32.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion rundll32.exe -
Processes:
rundll32.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
rundll32.exepid process 2036 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 1464 wrote to memory of 2036 1464 rundll32.exe rundll32.exe PID 1464 wrote to memory of 2036 1464 rundll32.exe rundll32.exe PID 1464 wrote to memory of 2036 1464 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3403923f1a151466a81c2c7a1fda617b7fbb43b1b8b0325e26e30ed06b6eb936.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3403923f1a151466a81c2c7a1fda617b7fbb43b1b8b0325e26e30ed06b6eb936.dll,#12⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger