Analysis
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max time kernel
149s -
max time network
157s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
20-05-2022 04:39
Static task
static1
Behavioral task
behavioral1
Sample
1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe
Resource
win7-20220414-en
General
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Target
1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe
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Size
5.0MB
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MD5
79b2dce444347169977d7fa87137f839
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SHA1
239779f6b48824a9e7626f6aa3c306c08eb244dd
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SHA256
1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef
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SHA512
73d68bf150662bb78ceb913dd54d5fe2414aed37769dd453102eb4ac9ea5fc565fbd45ecd9ba4e95422ba191ff0f8d1544d6fcb715b6c51fac5bbe1cc805346f
Malware Config
Signatures
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Glupteba Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/1672-56-0x0000000000400000-0x0000000000AE9000-memory.dmp family_glupteba behavioral1/memory/1596-62-0x0000000000400000-0x0000000000AE9000-memory.dmp family_glupteba behavioral1/memory/628-69-0x0000000000400000-0x0000000000AE9000-memory.dmp family_glupteba -
suricata: ET MALWARE Glupteba CnC Domain in DNS Lookup
suricata: ET MALWARE Glupteba CnC Domain in DNS Lookup
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Executes dropped EXE 1 IoCs
Processes:
csrss.exepid process 628 csrss.exe -
Modifies Windows Firewall 1 TTPs
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Loads dropped DLL 2 IoCs
Processes:
1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exepid process 1596 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe 1596 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe -
Processes:
1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet = "0" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\BlackFog = "0" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe = "0" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\cloudnet.exe = "0" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\BlackFog = "\"C:\\Windows\\rss\\csrss.exe\"" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe -
Drops file in System32 directory 6 IoCs
Processes:
csrss.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357 csrss.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357 csrss.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E0F5C59F9FA661F6F4C50B87FEF3A15A csrss.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E0F5C59F9FA661F6F4C50B87FEF3A15A csrss.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015 csrss.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015 csrss.exe -
Drops file in Windows directory 3 IoCs
Processes:
1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exemakecab.exedescription ioc process File opened for modification C:\Windows\rss 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe File created C:\Windows\rss\csrss.exe 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe File created C:\Windows\Logs\CBS\CbsPersist_20220520071127.cab makecab.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.execsrss.exenetsh.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs csrss.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-3 = "Microsoft Corporation" netsh.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-581 = "North Asia East Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Key created \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\NetTrace\Session netsh.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs csrss.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-100 = "DHCP Quarantine Enforcement Client" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-471 = "Ekaterinburg Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Key created \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\NetTrace netsh.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-102 = "1.0" netsh.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe -
Processes:
csrss.exedescription ioc process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 0400000001000000100000000cd2f9e0da1773e9ed864da5e370e74e14000000010000001400000079b459e67bb6e5e40173800888c81a58f6e99b6e030000000100000014000000cabd2a79a1076a31f21d253635cb039d4329a5e80f00000001000000200000003f0411ede9c4477057d57e57883b1f205b20cdc0f3263129b1ee0269a2678f631900000001000000100000002fe1f70bb05d7c92335bc5e05b984da620000000010000006f0500003082056b30820353a0030201020211008210cfb0d240e3594463e0bb63828b00300d06092a864886f70d01010b0500304f310b300906035504061302555331293027060355040a1320496e7465726e65742053656375726974792052657365617263682047726f7570311530130603550403130c4953524720526f6f74205831301e170d3135303630343131303433385a170d3335303630343131303433385a304f310b300906035504061302555331293027060355040a1320496e7465726e65742053656375726974792052657365617263682047726f7570311530130603550403130c4953524720526f6f7420583130820222300d06092a864886f70d01010105000382020f003082020a0282020100ade82473f41437f39b9e2b57281c87bedcb7df38908c6e3ce657a078f775c2a2fef56a6ef6004f28dbde68866c4493b6b163fd14126bbf1fd2ea319b217ed1333cba48f5dd79dfb3b8ff12f1219a4bc18a8671694a66666c8f7e3c70bfad292206f3e4c0e680aee24b8fb7997e94039fd347977c99482353e838ae4f0a6f832ed149578c8074b6da2fd0388d7b0370211b75f2303cfa8faeddda63abeb164fc28e114b7ecf0be8ffb5772ef4b27b4ae04c12250c708d0329a0e15324ec13d9ee19bf10b34a8c3f89a36151deac870794f46371ec2ee26f5b9881e1895c34796c76ef3b906279e6dba49a2f26c5d010e10eded9108e16fbb7f7a8f7c7e50207988f360895e7e237960d36759efb0e72b11d9bbc03f94905d881dd05b42ad641e9ac0176950a0fd8dfd5bd121f352f28176cd298c1a80964776e4737baceac595e689d7f72d689c50641293e593edd26f524c911a75aa34c401f46a199b5a73a516e863b9e7d72a712057859ed3e5178150b038f8dd02f05b23e7b4a1c4b730512fcc6eae050137c439374b3ca74e78e1f0108d030d45b7136b407bac130305c48b7823b98a67d608aa2a32982ccbabd83041ba2830341a1d605f11bc2b6f0a87c863b46a8482a88dc769a76bf1f6aa53d198feb38f364dec82b0d0a28fff7dbe21542d422d0275de179fe18e77088ad4ee6d98b3ac6dd27516effbc64f533434f0203010001a3423040300e0603551d0f0101ff040403020106300f0603551d130101ff040530030101ff301d0603551d0e0416041479b459e67bb6e5e40173800888c81a58f6e99b6e300d06092a864886f70d01010b05000382020100551f58a9bcb2a850d00cb1d81a6920272908ac61755c8a6ef882e5692fd5f6564bb9b8731059d321977ee74c71fbb2d260ad39a80bea17215685f1500e59ebcee059e9bac915ef869d8f8480f6e4e99190dc179b621b45f06695d27c6fc2ea3bef1fcfcbd6ae27f1a9b0c8aefd7d7e9afa2204ebffd97fea912b22b1170e8ff28a345b58d8fc01c954b9b826cc8a8833894c2d843c82dfee965705ba2cbbf7c4b7c74e3b82be31c822737392d1c280a43939103323824c3c9f86b255981dbe29868c229b9ee26b3b573a82704ddc09c789cb0a074d6ce85d8ec9efceabc7bbb52b4e45d64ad026cce572ca086aa595e315a1f7a4edc92c5fa5fbffac28022ebed77bbbe3717b9016d3075e46537c3707428cd3c4969cd599b52ae0951a8048ae4c3907cecc47a452952bbab8fbadd233537de51d4d6dd5a1b1c7426fe64027355ca328b7078de78d3390e7239ffb509c796c46d5b415b3966e7e9b0c963ab8522d3fd65be1fb08c284fe24a8a389daac6ae1182ab1a843615bd31fdc3b8d76f22de88d75df17336c3d53fb7bcb415fffdca2d06138e196b8ac5d8b37d775d533c09911ae9d41c1727584be0241425f67244894d19b27be073fb9b84f817451e17ab7ed9d23e2bee0d52804133c31039edd7a6c8fc60718c67fde478e3f289e0406cfa5543477bdec899be91743df5bdb5ffe8e1e57a2cd409d7e6222dade1827 csrss.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 csrss.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 csrss.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 csrss.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 csrss.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 csrss.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.execsrss.exepid process 1672 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe 1672 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe 1672 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe 1672 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe 1596 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe 1596 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe 1596 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe 628 csrss.exe 628 csrss.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exedescription pid process Token: SeDebugPrivilege 1672 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe Token: SeImpersonatePrivilege 1672 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.execmd.exedescription pid process target process PID 1596 wrote to memory of 880 1596 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe cmd.exe PID 1596 wrote to memory of 880 1596 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe cmd.exe PID 1596 wrote to memory of 880 1596 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe cmd.exe PID 1596 wrote to memory of 880 1596 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe cmd.exe PID 880 wrote to memory of 1764 880 cmd.exe netsh.exe PID 880 wrote to memory of 1764 880 cmd.exe netsh.exe PID 880 wrote to memory of 1764 880 cmd.exe netsh.exe PID 1596 wrote to memory of 628 1596 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe csrss.exe PID 1596 wrote to memory of 628 1596 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe csrss.exe PID 1596 wrote to memory of 628 1596 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe csrss.exe PID 1596 wrote to memory of 628 1596 1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe csrss.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe"C:\Users\Admin\AppData\Local\Temp\1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.exe"C:\Users\Admin\AppData\Local\Temp\1ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef.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 data under HKEY_USERS
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe ""3⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\system32\makecab.exe"C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20220520071127.log C:\Windows\Logs\CBS\CbsPersist_20220520071127.cab1⤵
- Drops file in Windows directory
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Windows\rss\csrss.exeFilesize
5.0MB
MD579b2dce444347169977d7fa87137f839
SHA1239779f6b48824a9e7626f6aa3c306c08eb244dd
SHA2561ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef
SHA51273d68bf150662bb78ceb913dd54d5fe2414aed37769dd453102eb4ac9ea5fc565fbd45ecd9ba4e95422ba191ff0f8d1544d6fcb715b6c51fac5bbe1cc805346f
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\Windows\rss\csrss.exeFilesize
5.0MB
MD579b2dce444347169977d7fa87137f839
SHA1239779f6b48824a9e7626f6aa3c306c08eb244dd
SHA2561ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef
SHA51273d68bf150662bb78ceb913dd54d5fe2414aed37769dd453102eb4ac9ea5fc565fbd45ecd9ba4e95422ba191ff0f8d1544d6fcb715b6c51fac5bbe1cc805346f
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\Windows\rss\csrss.exeFilesize
5.0MB
MD579b2dce444347169977d7fa87137f839
SHA1239779f6b48824a9e7626f6aa3c306c08eb244dd
SHA2561ea3c3acb4c6e533907cc7bdafd5cb4bd5e8294b717803e86b57c925d5992aef
SHA51273d68bf150662bb78ceb913dd54d5fe2414aed37769dd453102eb4ac9ea5fc565fbd45ecd9ba4e95422ba191ff0f8d1544d6fcb715b6c51fac5bbe1cc805346f
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memory/628-69-0x0000000000400000-0x0000000000AE9000-memory.dmpFilesize
6.9MB
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memory/628-68-0x0000000002A90000-0x0000000002E28000-memory.dmpFilesize
3.6MB
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memory/628-67-0x0000000002A90000-0x0000000002F5A000-memory.dmpFilesize
4.8MB
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memory/628-65-0x0000000000000000-mapping.dmp
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memory/880-58-0x0000000000000000-mapping.dmp
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memory/1596-62-0x0000000000400000-0x0000000000AE9000-memory.dmpFilesize
6.9MB
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memory/1596-61-0x0000000002920000-0x0000000002CB8000-memory.dmpFilesize
3.6MB
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memory/1596-57-0x0000000002920000-0x0000000002DEA000-memory.dmpFilesize
4.8MB
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memory/1672-54-0x0000000002980000-0x0000000002E4A000-memory.dmpFilesize
4.8MB
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memory/1672-56-0x0000000000400000-0x0000000000AE9000-memory.dmpFilesize
6.9MB
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memory/1672-55-0x0000000002980000-0x0000000002D18000-memory.dmpFilesize
3.6MB
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memory/1764-60-0x000007FEFBAA1000-0x000007FEFBAA3000-memory.dmpFilesize
8KB
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memory/1764-59-0x0000000000000000-mapping.dmp