Analysis
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max time kernel
125s -
max time network
145s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 10:30
Static task
static1
Behavioral task
behavioral1
Sample
c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe
Resource
win7-20220414-en
General
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Target
c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe
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Size
4.9MB
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MD5
9f8c0778a90e69bfa594d46148575a13
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SHA1
bd09fc2cd7b4f43e07576a75c9cb2f7ac55557e8
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SHA256
c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b
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SHA512
bb30fbd73ac88cf424420aa71fbe058f5bcbaac2dd25bd988e7cb664f34ec60171978982479d526dc01c046fe16b7c44e61fc6277c58027817ba87fb26bd38f9
Malware Config
Signatures
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Glupteba Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/1164-56-0x0000000000400000-0x00000000010F7000-memory.dmp family_glupteba behavioral1/memory/1676-60-0x0000000000400000-0x00000000010F7000-memory.dmp family_glupteba behavioral1/memory/1904-69-0x0000000000400000-0x00000000010F7000-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 1904 csrss.exe -
Modifies Windows Firewall 1 TTPs
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Loads dropped DLL 2 IoCs
Processes:
c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exepid process 1676 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe 1676 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe -
Processes:
c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet = "0" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe = "0" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\EmptyVoice = "0" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\cloudnet.exe = "0" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\EmptyVoice = "\"C:\\Windows\\rss\\csrss.exe\"" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.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:
c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exemakecab.exedescription ioc process File created C:\Windows\rss\csrss.exe c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe File created C:\Windows\Logs\CBS\CbsPersist_20220521123140.cab makecab.exe File opened for modification C:\Windows\rss c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exenetsh.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Key created \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\NetTrace\Session netsh.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-522 = "N. Central Asia Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.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,-751 = "Tonga Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-21 = "Cape Verde Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.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,-411 = "E. Africa Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-101 = "Provides RD Gateway enforcement for NAP" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-101 = "Provides Network Access Protection enforcement for EAP authenticated network connections, such as those used with 802.1X and VPN technologies." netsh.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-4 = "1.0" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-103 = "1.0" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-102 = "1.0" netsh.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.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 -
Processes:
csrss.exedescription ioc process 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 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 -
Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exec84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.execsrss.exepid process 1164 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe 1164 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe 1164 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe 1164 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe 1676 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe 1676 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe 1676 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe 1904 csrss.exe 1904 csrss.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exedescription pid process Token: SeDebugPrivilege 1164 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe Token: SeImpersonatePrivilege 1164 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.execmd.exedescription pid process target process PID 1676 wrote to memory of 1976 1676 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe cmd.exe PID 1676 wrote to memory of 1976 1676 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe cmd.exe PID 1676 wrote to memory of 1976 1676 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe cmd.exe PID 1676 wrote to memory of 1976 1676 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe cmd.exe PID 1976 wrote to memory of 1848 1976 cmd.exe netsh.exe PID 1976 wrote to memory of 1848 1976 cmd.exe netsh.exe PID 1976 wrote to memory of 1848 1976 cmd.exe netsh.exe PID 1676 wrote to memory of 1904 1676 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe csrss.exe PID 1676 wrote to memory of 1904 1676 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe csrss.exe PID 1676 wrote to memory of 1904 1676 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe csrss.exe PID 1676 wrote to memory of 1904 1676 c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe csrss.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe"C:\Users\Admin\AppData\Local\Temp\c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Local\Temp\c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.exe"C:\Users\Admin\AppData\Local\Temp\c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b.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
-
C:\Windows\system32\makecab.exe"C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20220521123140.log C:\Windows\Logs\CBS\CbsPersist_20220521123140.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
4.9MB
MD59f8c0778a90e69bfa594d46148575a13
SHA1bd09fc2cd7b4f43e07576a75c9cb2f7ac55557e8
SHA256c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b
SHA512bb30fbd73ac88cf424420aa71fbe058f5bcbaac2dd25bd988e7cb664f34ec60171978982479d526dc01c046fe16b7c44e61fc6277c58027817ba87fb26bd38f9
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\Windows\rss\csrss.exeFilesize
4.9MB
MD59f8c0778a90e69bfa594d46148575a13
SHA1bd09fc2cd7b4f43e07576a75c9cb2f7ac55557e8
SHA256c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b
SHA512bb30fbd73ac88cf424420aa71fbe058f5bcbaac2dd25bd988e7cb664f34ec60171978982479d526dc01c046fe16b7c44e61fc6277c58027817ba87fb26bd38f9
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\Windows\rss\csrss.exeFilesize
4.9MB
MD59f8c0778a90e69bfa594d46148575a13
SHA1bd09fc2cd7b4f43e07576a75c9cb2f7ac55557e8
SHA256c84050d37aa53bcadb044ac745a47c47b568541b19305de99b7bf029fd2fc16b
SHA512bb30fbd73ac88cf424420aa71fbe058f5bcbaac2dd25bd988e7cb664f34ec60171978982479d526dc01c046fe16b7c44e61fc6277c58027817ba87fb26bd38f9
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memory/1164-55-0x0000000002F10000-0x00000000032A8000-memory.dmpFilesize
3.6MB
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memory/1164-56-0x0000000000400000-0x00000000010F7000-memory.dmpFilesize
13.0MB
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memory/1164-54-0x0000000002F10000-0x00000000033DA000-memory.dmpFilesize
4.8MB
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memory/1676-58-0x0000000002D30000-0x00000000030C8000-memory.dmpFilesize
3.6MB
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memory/1676-60-0x0000000000400000-0x00000000010F7000-memory.dmpFilesize
13.0MB
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memory/1676-57-0x0000000002D30000-0x00000000031FA000-memory.dmpFilesize
4.8MB
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memory/1848-61-0x0000000000000000-mapping.dmp
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memory/1848-62-0x000007FEFC061000-0x000007FEFC063000-memory.dmpFilesize
8KB
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memory/1904-65-0x0000000000000000-mapping.dmp
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memory/1904-67-0x0000000002EC0000-0x000000000338A000-memory.dmpFilesize
4.8MB
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memory/1904-68-0x0000000002EC0000-0x0000000003258000-memory.dmpFilesize
3.6MB
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memory/1904-69-0x0000000000400000-0x00000000010F7000-memory.dmpFilesize
13.0MB
-
memory/1976-59-0x0000000000000000-mapping.dmp