Analysis
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max time kernel
150s -
max time network
126s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
15-05-2021 16:10
Static task
static1
Behavioral task
behavioral1
Sample
09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe
Resource
win10v20210408
General
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Target
09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe
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Size
433KB
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MD5
c9ae0a065e758f5e42f70f0527e436e6
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SHA1
4cd21cca29f4310b2567776aced29576012a8df0
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SHA256
09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910
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SHA512
3c2d56e511d344f8c3273249fa5f6aabbefad6bee13ce6fa2b2fb2fb0338f1d8475c9d4203a0c69d42cf87fda40ea580525de53961f327fcc765bb8a38469c60
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 2 IoCs
Processes:
09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe" 09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe," 09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe -
Modifies system executable filetype association 2 TTPs 1 IoCs
Processes:
09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*" 09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe -
Drops file in Drivers directory 2 IoCs
Processes:
09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exedescription ioc process File created C:\Windows\SysWOW64\drivers\spools.exe 09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe File opened for modification C:\Windows\SysWOW64\drivers\spools.exe 09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe -
Sets service image path in registry 2 TTPs
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Adds Run key to start application 2 TTPs 4 IoCs
Processes:
09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe" 09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe" 09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe" 09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe" 09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe -
Installs/modifies Browser Helper Object 2 TTPs
BHOs are DLL modules which act as plugins for Internet Explorer.
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Modifies WinLogon 2 TTPs 1 IoCs
Processes:
09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\UIHost = "logonui.exe" 09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe -
Modifies registry class 1 IoCs
Processes:
09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*" 09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exedescription pid process target process PID 788 wrote to memory of 1912 788 09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe reg.exe PID 788 wrote to memory of 1912 788 09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe reg.exe PID 788 wrote to memory of 1912 788 09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe reg.exe PID 788 wrote to memory of 1912 788 09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe reg.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe"C:\Users\Admin\AppData\Local\Temp\09384bb4e63250965acc6ae868b405ca43f4f7e8f06d5a1cca4dfdf3ae5b3910.exe"1⤵
- Modifies WinLogon for persistence
- Modifies system executable filetype association
- Drops file in Drivers directory
- Adds Run key to start application
- Modifies WinLogon
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\reg.exereg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects" /f2⤵