Analysis
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max time kernel
149s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
03-02-2023 11:16
Static task
static1
General
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Target
f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe
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Size
4.0MB
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MD5
9b3479760d30adc8d195d49c3104fd87
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SHA1
ad60c87741e4d219524ff9b9af9cbc0c9dd194e6
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SHA256
f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f
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SHA512
90912d9aa8839e749dd81b259ce7cd4a1fa4a789654528de966b7223c8b0b0e194d42660dbf009e4f886778be145cc8f77efaf2d4f026cce094272b3ba64431a
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SSDEEP
49152:7v0l8b+aUXeV/1OAv6JYQKKuf8uPn0RGKouo17A8YNRvE0C7JGoY4sPkkCEW:Ql8K61xWYQKguPnFKoVvkvXC8cmW
Malware Config
Signatures
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Suspicious use of NtCreateUserProcessOtherParentProcess 6 IoCs
Processes:
svchost.exedescription pid process target process PID 5032 created 3144 5032 svchost.exe f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe PID 5032 created 1512 5032 svchost.exe csrss.exe PID 5032 created 1512 5032 svchost.exe csrss.exe PID 5032 created 1512 5032 svchost.exe csrss.exe PID 5032 created 3240 5032 svchost.exe f801950a962ddba14caaa44bf084b55c.exe PID 5032 created 3240 5032 svchost.exe f801950a962ddba14caaa44bf084b55c.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Executes dropped EXE 3 IoCs
Processes:
csrss.exeinjector.exef801950a962ddba14caaa44bf084b55c.exepid process 1512 csrss.exe 868 injector.exe 3240 f801950a962ddba14caaa44bf084b55c.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe upx C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe upx behavioral1/memory/3240-157-0x0000000000400000-0x0000000000C25000-memory.dmp upx behavioral1/memory/3240-161-0x0000000000400000-0x0000000000C25000-memory.dmp upx behavioral1/memory/3240-163-0x0000000000400000-0x0000000000C25000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.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 2 IoCs
Processes:
f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exedescription ioc process File opened for modification C:\Windows\rss f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe File created C:\Windows\rss\csrss.exe f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.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 2776 schtasks.exe 1308 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exef0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exeinjector.execsrss.exepid process 3144 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe 3144 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe 4924 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe 4924 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe 4924 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe 4924 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe 4924 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe 4924 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe 4924 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe 4924 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe 4924 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe 4924 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 1512 csrss.exe 1512 csrss.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 1512 csrss.exe 1512 csrss.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe 868 injector.exe -
Suspicious use of AdjustPrivilegeToken 25 IoCs
Processes:
f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exesvchost.execsrss.exedescription pid process Token: SeDebugPrivilege 3144 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Token: SeImpersonatePrivilege 3144 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe Token: SeTcbPrivilege 5032 svchost.exe Token: SeTcbPrivilege 5032 svchost.exe Token: SeBackupPrivilege 5032 svchost.exe Token: SeRestorePrivilege 5032 svchost.exe Token: SeBackupPrivilege 5032 svchost.exe Token: SeRestorePrivilege 5032 svchost.exe Token: SeBackupPrivilege 5032 svchost.exe Token: SeRestorePrivilege 5032 svchost.exe Token: SeBackupPrivilege 5032 svchost.exe Token: SeRestorePrivilege 5032 svchost.exe Token: SeSystemEnvironmentPrivilege 1512 csrss.exe Token: SeBackupPrivilege 5032 svchost.exe Token: SeRestorePrivilege 5032 svchost.exe Token: SeBackupPrivilege 5032 svchost.exe Token: SeRestorePrivilege 5032 svchost.exe Token: SeBackupPrivilege 5032 svchost.exe Token: SeRestorePrivilege 5032 svchost.exe Token: SeBackupPrivilege 5032 svchost.exe Token: SeRestorePrivilege 5032 svchost.exe Token: SeBackupPrivilege 5032 svchost.exe Token: SeRestorePrivilege 5032 svchost.exe Token: SeBackupPrivilege 5032 svchost.exe Token: SeRestorePrivilege 5032 svchost.exe -
Suspicious use of WriteProcessMemory 25 IoCs
Processes:
svchost.exef0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.execmd.execsrss.exedescription pid process target process PID 5032 wrote to memory of 4924 5032 svchost.exe f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe PID 5032 wrote to memory of 4924 5032 svchost.exe f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe PID 5032 wrote to memory of 4924 5032 svchost.exe f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe PID 4924 wrote to memory of 4592 4924 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe cmd.exe PID 4924 wrote to memory of 4592 4924 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe cmd.exe PID 4592 wrote to memory of 2644 4592 cmd.exe netsh.exe PID 4592 wrote to memory of 2644 4592 cmd.exe netsh.exe PID 4924 wrote to memory of 1512 4924 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe csrss.exe PID 4924 wrote to memory of 1512 4924 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe csrss.exe PID 4924 wrote to memory of 1512 4924 f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe csrss.exe PID 5032 wrote to memory of 2776 5032 svchost.exe schtasks.exe PID 5032 wrote to memory of 2776 5032 svchost.exe schtasks.exe PID 5032 wrote to memory of 944 5032 svchost.exe schtasks.exe PID 5032 wrote to memory of 944 5032 svchost.exe schtasks.exe PID 1512 wrote to memory of 868 1512 csrss.exe injector.exe PID 1512 wrote to memory of 868 1512 csrss.exe injector.exe PID 5032 wrote to memory of 1308 5032 svchost.exe schtasks.exe PID 5032 wrote to memory of 1308 5032 svchost.exe schtasks.exe PID 1512 wrote to memory of 3240 1512 csrss.exe f801950a962ddba14caaa44bf084b55c.exe PID 1512 wrote to memory of 3240 1512 csrss.exe f801950a962ddba14caaa44bf084b55c.exe PID 1512 wrote to memory of 3240 1512 csrss.exe f801950a962ddba14caaa44bf084b55c.exe PID 5032 wrote to memory of 1788 5032 svchost.exe schtasks.exe PID 5032 wrote to memory of 1788 5032 svchost.exe schtasks.exe PID 5032 wrote to memory of 4060 5032 svchost.exe schtasks.exe PID 5032 wrote to memory of 4060 5032 svchost.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe"C:\Users\Admin\AppData\Local\Temp\f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe"C:\Users\Admin\AppData\Local\Temp\f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f.exe"2⤵
- 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
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- 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 /delete /tn ScheduledUpdate /f4⤵
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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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:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exeC:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe4⤵
- Executes dropped EXE
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn "csrss" /f5⤵
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn "ScheduledUpdate" /f5⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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\f801950a962ddba14caaa44bf084b55c.exeFilesize
3.2MB
MD5f801950a962ddba14caaa44bf084b55c
SHA17cadc9076121297428442785536ba0df2d4ae996
SHA256c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f
SHA5124183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5
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C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exeFilesize
3.2MB
MD5f801950a962ddba14caaa44bf084b55c
SHA17cadc9076121297428442785536ba0df2d4ae996
SHA256c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f
SHA5124183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dllFilesize
99KB
MD509031a062610d77d685c9934318b4170
SHA1880f744184e7774f3d14c1bb857e21cc7fe89a6d
SHA256778bd69af403df3c4e074c31b3850d71bf0e64524bea4272a802ca9520b379dd
SHA5129a276e1f0f55d35f2bf38eb093464f7065bdd30a660e6d1c62eed5e76d1fb2201567b89d9ae65d2d89dc99b142159e36fb73be8d5e08252a975d50544a7cda27
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\rss\csrss.exeFilesize
4.0MB
MD59b3479760d30adc8d195d49c3104fd87
SHA1ad60c87741e4d219524ff9b9af9cbc0c9dd194e6
SHA256f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f
SHA51290912d9aa8839e749dd81b259ce7cd4a1fa4a789654528de966b7223c8b0b0e194d42660dbf009e4f886778be145cc8f77efaf2d4f026cce094272b3ba64431a
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C:\Windows\rss\csrss.exeFilesize
4.0MB
MD59b3479760d30adc8d195d49c3104fd87
SHA1ad60c87741e4d219524ff9b9af9cbc0c9dd194e6
SHA256f0702f55e2af158db7cc17026068493b3ac36a1503aec6ca67de769a77ad3e2f
SHA51290912d9aa8839e749dd81b259ce7cd4a1fa4a789654528de966b7223c8b0b0e194d42660dbf009e4f886778be145cc8f77efaf2d4f026cce094272b3ba64431a
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memory/868-149-0x0000000000000000-mapping.dmp
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memory/944-147-0x0000000000000000-mapping.dmp
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memory/1308-152-0x0000000000000000-mapping.dmp
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memory/1512-148-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/1512-158-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/1512-141-0x0000000000000000-mapping.dmp
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memory/1512-153-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/1512-146-0x0000000002E00000-0x00000000031E9000-memory.dmpFilesize
3.9MB
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memory/1788-159-0x0000000000000000-mapping.dmp
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memory/2644-139-0x0000000000000000-mapping.dmp
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memory/2776-145-0x0000000000000000-mapping.dmp
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memory/3144-134-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/3144-132-0x0000000002B60000-0x0000000002F49000-memory.dmpFilesize
3.9MB
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memory/3144-133-0x0000000002F50000-0x00000000037C7000-memory.dmpFilesize
8.5MB
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memory/3144-136-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/3240-154-0x0000000000000000-mapping.dmp
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memory/3240-157-0x0000000000400000-0x0000000000C25000-memory.dmpFilesize
8.1MB
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memory/3240-161-0x0000000000400000-0x0000000000C25000-memory.dmpFilesize
8.1MB
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memory/3240-163-0x0000000000400000-0x0000000000C25000-memory.dmpFilesize
8.1MB
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memory/4060-160-0x0000000000000000-mapping.dmp
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memory/4592-138-0x0000000000000000-mapping.dmp
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memory/4924-140-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/4924-135-0x0000000000000000-mapping.dmp
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memory/4924-144-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/4924-137-0x0000000002991000-0x0000000002D7A000-memory.dmpFilesize
3.9MB