Analysis
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max time kernel
150s -
max time network
148s -
platform
windows10-1703_x64 -
resource
win10-20220901-en -
resource tags
arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system -
submitted
03-12-2022 12:22
Static task
static1
General
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Target
746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe
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Size
4.2MB
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MD5
3bc8a54d35c7deda85f7d298b65f52f2
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SHA1
1803199de71f6829aff2147e75651bf7e98ee42f
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SHA256
746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c
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SHA512
db9b068d8c9cc317e03e59a51274a60624f70d8a11652ca0a370c3a2b448cac9e259b766af1eef67c26dd0f1eaf66f44de08acb2abf6da1753c8d8ec69152d9a
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SSDEEP
98304:gOAEAD7buvr+VFtgghiT8Qpf9ryzx6ZuT3VP7Yi7AEWXldC:g1EADXkr+VFtliT8Qp1+zx6ZuZP7YiL3
Malware Config
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe = "0" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe -
Executes dropped EXE 2 IoCs
pid Process 3304 csrss.exe 3336 injector.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
pid Process 3920 netsh.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe = "0" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\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
description ioc Process File opened for modification C:\Windows\rss 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe File created C:\Windows\rss\csrss.exe 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 368 schtasks.exe 3888 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.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" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.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" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.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" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Key created \REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Control\NetTrace netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4940 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 4940 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 4260 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 4260 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 4260 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 4260 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 4260 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 4260 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 4260 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 4260 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 4260 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 4260 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3304 csrss.exe 3304 csrss.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3304 csrss.exe 3304 csrss.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4940 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Token: SeImpersonatePrivilege 4940 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe Token: SeSystemEnvironmentPrivilege 3304 csrss.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4260 wrote to memory of 4664 4260 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 72 PID 4260 wrote to memory of 4664 4260 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 72 PID 4664 wrote to memory of 3920 4664 cmd.exe 71 PID 4664 wrote to memory of 3920 4664 cmd.exe 71 PID 4260 wrote to memory of 3304 4260 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 73 PID 4260 wrote to memory of 3304 4260 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 73 PID 4260 wrote to memory of 3304 4260 746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe 73 PID 3304 wrote to memory of 3336 3304 csrss.exe 79 PID 3304 wrote to memory of 3336 3304 csrss.exe 79
Processes
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C:\Users\Admin\AppData\Local\Temp\746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe"C:\Users\Admin\AppData\Local\Temp\746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4940 -
C:\Users\Admin\AppData\Local\Temp\746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe"C:\Users\Admin\AppData\Local\Temp\746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe"2⤵
- Windows security bypass
- 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
PID:4260 -
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
PID:4664
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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
PID:3304 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:844
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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)
PID:368
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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
PID:3336
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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)
PID:3888
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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=yes1⤵
- Modifies Windows Firewall
- Modifies data under HKEY_USERS
PID:3920
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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Filesize
4.2MB
MD53bc8a54d35c7deda85f7d298b65f52f2
SHA11803199de71f6829aff2147e75651bf7e98ee42f
SHA256746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c
SHA512db9b068d8c9cc317e03e59a51274a60624f70d8a11652ca0a370c3a2b448cac9e259b766af1eef67c26dd0f1eaf66f44de08acb2abf6da1753c8d8ec69152d9a
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Filesize
4.2MB
MD53bc8a54d35c7deda85f7d298b65f52f2
SHA11803199de71f6829aff2147e75651bf7e98ee42f
SHA256746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c
SHA512db9b068d8c9cc317e03e59a51274a60624f70d8a11652ca0a370c3a2b448cac9e259b766af1eef67c26dd0f1eaf66f44de08acb2abf6da1753c8d8ec69152d9a