Analysis
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max time kernel
93s -
max time network
107s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
25-03-2023 01:16
Behavioral task
behavioral1
Sample
9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exe
Resource
win7-20230220-en
General
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Target
9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exe
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Size
6.6MB
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MD5
3459f3a3d65fa445d1eb52611ac55f6c
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SHA1
135c835edfeec60e41bc1b24f1a10ad7a86c9a00
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SHA256
9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944
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SHA512
1dbf42476304cefd859754f1d8219c0b37cc5b2885527f874245a37df5e1145dbcc1ff1ce34bdf0fa47df8a503e37244ff07a37bb92e8f2514533d8a89926d8b
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SSDEEP
98304:MsRRwjPcDZ3IFTbWJ6tWUQSPZyq2XOD6gwosVvC8pQ6TYupGFBUMnEB:MsRKjkNcyDVSROtgwJVvHjTrUIMni
Malware Config
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
Processes:
9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exe -
Processes:
resource yara_rule behavioral2/memory/3252-133-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp themida behavioral2/memory/3252-134-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp themida behavioral2/memory/3252-135-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp themida behavioral2/memory/3252-136-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp themida behavioral2/memory/3252-137-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp themida behavioral2/memory/3252-138-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp themida behavioral2/memory/3252-139-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp themida behavioral2/memory/3252-140-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp themida behavioral2/memory/3252-141-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp themida behavioral2/memory/3252-142-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp themida behavioral2/memory/3252-143-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmp themida -
Processes:
9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exepid process 3252 9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1568 3252 WerFault.exe 9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exepid process 3252 9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exe 3252 9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exedescription pid process Token: SeDebugPrivilege 3252 9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exe"C:\Users\Admin\AppData\Local\Temp\9c85d76526d585038392e1af504886580d096e9646de2907b73feab521920944.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 3252 -s 7242⤵
- Program crash
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -pss -s 408 -p 3252 -ip 32521⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/3252-133-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmpFilesize
16.5MB
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memory/3252-134-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmpFilesize
16.5MB
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memory/3252-135-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmpFilesize
16.5MB
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memory/3252-136-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmpFilesize
16.5MB
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memory/3252-137-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmpFilesize
16.5MB
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memory/3252-138-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmpFilesize
16.5MB
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memory/3252-139-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmpFilesize
16.5MB
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memory/3252-140-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmpFilesize
16.5MB
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memory/3252-141-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmpFilesize
16.5MB
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memory/3252-142-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmpFilesize
16.5MB
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memory/3252-143-0x00007FF6B4270000-0x00007FF6B52E6000-memory.dmpFilesize
16.5MB