Analysis
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max time kernel
91s -
max time network
122s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
14/02/2024, 04:59
Behavioral task
behavioral1
Sample
9acfd7a4f79304bbeb0faf79c0e83702.dll
Resource
win7-20231215-en
windows7-x64
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
9acfd7a4f79304bbeb0faf79c0e83702.dll
Resource
win10v2004-20231222-en
windows10-2004-x64
5 signatures
150 seconds
General
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Target
9acfd7a4f79304bbeb0faf79c0e83702.dll
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Size
9KB
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MD5
9acfd7a4f79304bbeb0faf79c0e83702
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SHA1
24b77b8f00d874707135179353ef206e0c718813
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SHA256
caaf5fdc2b97fe46c4b23ad4e0d350c535e3c13c59312373fac85a0c128cca5a
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SHA512
0110bb53ee741cb0e204463313f03512fc38e5a359334b5b2800d086d407e322031d0aca32ed41da83709df8e9d735d117dfc3eead2cf21987cb3ea11cab098f
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SSDEEP
192:eFkoLChD1WjYn87BzMzWQviu5BfUILmb9x:ToLCZ8vz2Wqiu5BMIL
Score
8/10
Malware Config
Signatures
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Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\drivers\klan.sys rundll32.exe -
Sets file execution options in registry 2 TTPs 64 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\frameworkservice.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kislnchr.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccevtmgr.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccsetmgr.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\frwstub.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avengine.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\cqw32.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kasmain.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvmonxp.exe\Debugger = "ntsd -d" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avguard.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avp32.exe rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kavsvc.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kavsvcui.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kavstart.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kregex.exe\Debugger = "ntsd -d" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360hotfix.exe\Debugger = "ntsd -d" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccapp.exe\Debugger = "ntsd -d" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kpfw32.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avtask.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvfw.exe\Debugger = "ntsd -d" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvmonxp.kxp\Debugger = "ntsd -d" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvol.exe\Debugger = "ntsd -d" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\apvxdwin.exe\Debugger = "ntsd -d" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgnt.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccevtmgr.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccregvfy.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\agentsvr.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvsrvxp.exe\Debugger = "ntsd -d" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kmailmon.exe\Debugger = "ntsd -d" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avengine.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avltmain.exe rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\frameworkservice.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kpfwsvc.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvxp.kxp rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kwatch.exe\Debugger = "ntsd -d" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kislnchr.exe\Debugger = "ntsd -d" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kissvc.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kpfw32.exe rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvfw.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\agentsvr.exe\Debugger = "ntsd -d" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ast.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kav32.exe rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kavsvcui.exe rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvol.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\boxmod.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccapp.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avp32.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\frwstub.exe rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360safebox.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avltmain.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\bdagent.exe rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\knownsvr.exe rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\apvxdwin.exe rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ast.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccsetmgr.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kwatch.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360safebox.exe\Debugger = "ntsd -d" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kaccore.exe rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kregex.exe rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvwsc.exe\Debugger = "ntsd -d" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvxp.kxp\Debugger = "ntsd -d" rundll32.exe -
resource yara_rule behavioral2/memory/4528-0-0x0000000075450000-0x000000007545A000-memory.dmp upx -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 656 Process not Found -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4888 wrote to memory of 4528 4888 rundll32.exe 58 PID 4888 wrote to memory of 4528 4888 rundll32.exe 58 PID 4888 wrote to memory of 4528 4888 rundll32.exe 58
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\9acfd7a4f79304bbeb0faf79c0e83702.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4888 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\9acfd7a4f79304bbeb0faf79c0e83702.dll,#12⤵
- Drops file in Drivers directory
- Sets file execution options in registry
PID:4528
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