Analysis
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max time kernel
1630s -
max time network
1609s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
07-07-2022 04:21
Static task
static1
Behavioral task
behavioral1
Sample
435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe
Resource
win10v2004-20220414-en
General
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Target
435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe
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Size
336KB
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MD5
d30bcb421d9097d79161538b669f18cc
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SHA1
1bbbb54dfad807e4f5e5b8e8157abf91376a2238
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SHA256
435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1
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SHA512
559eb3f10fd1628ca781bedf984c611546a88674f1afc3e0e08bce0747424bdab8e2d5d31cd680d6c6986c9a4be5ad3ee4ddd0e4f7bf4295ae216e994114bc06
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 2 IoCs
Processes:
435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe \"C:\\Windows\\system32\\IExplorer.exe\"" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\IExplorer.exe" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe -
Modifies system executable filetype association 2 TTPs 13 IoCs
Processes:
435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\ = "File Folder" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe -
Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
Processes:
435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe -
Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
Processes:
435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe -
Disables RegEdit via registry modification 2 IoCs
Processes:
435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe -
Disables use of System Restore points 1 TTPs
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Processes:
resource yara_rule behavioral2/memory/4968-132-0x0000000000400000-0x0000000000430000-memory.dmp upx behavioral2/memory/4968-133-0x0000000000400000-0x0000000000430000-memory.dmp upx -
Adds Run key to start application 2 TTPs 7 IoCs
Processes:
435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\LogonAdmin = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\CSRSS.EXE" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\System Monitoring = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\LSASS.EXE" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xk = "C:\\Windows\\xk.exe" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSMSGS = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\WINLOGON.EXE" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ServiceAdmin = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\SERVICES.EXE" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3360 4968 WerFault.exe 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe -
Modifies Control Panel 4 IoCs
Processes:
435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\Desktop\SCRNSAVE.EXE = "C:\\Windows\\system32\\Mig~mig.SCR" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\Desktop\ScreenSaverIsSecure = "0" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\Desktop\ScreenSaveTimeOut = "600" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\Desktop\ 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe -
Modifies registry class 15 IoCs
Processes:
435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\ = "File Folder" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exepid process 4968 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe -
System policy modification 1 TTPs 4 IoCs
Processes:
435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions = "1" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" 435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe"C:\Users\Admin\AppData\Local\Temp\435e3bcdea5d8af7ca10960618821e8a3b6c859e925b1a40f0b2b1c914f6fdd1.exe"1⤵
- Modifies WinLogon for persistence
- Modifies system executable filetype association
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Disables RegEdit via registry modification
- Adds Run key to start application
- Modifies Control Panel
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- System policy modification
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4968 -s 6242⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4968 -ip 49681⤵