Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
03-02-2023 23:05
Static task
static1
General
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Target
82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe
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Size
4.0MB
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MD5
9190e30fefb5681807fd2728cca2a856
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SHA1
784a981be2c57a7a8352b2a2c7fb7e583b2b17c9
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SHA256
82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3
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SHA512
02d18aeac47eaa8123cba7610ff7fe3280f79f06d12c5dc3920381ed79e78fd9bf1a3808ca59bc5a4fa4cc5623812e8d5a355700af6424f442e189bc5bb8ca43
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SSDEEP
98304:oadrehQaVykHG5G8qJbbLy/KsRKH9PPtryq1x+qpmvPEiezmMwQk4Xe:BdCqXkm53ULySs8H3f1x+qIQzmMwQFXe
Malware Config
Signatures
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Suspicious use of NtCreateUserProcessOtherParentProcess 4 IoCs
Processes:
svchost.exedescription pid process target process PID 1344 created 1716 1344 svchost.exe 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe PID 1344 created 4260 1344 svchost.exe csrss.exe PID 1344 created 4260 1344 svchost.exe csrss.exe PID 1344 created 4260 1344 svchost.exe csrss.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid process 4260 csrss.exe 8 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\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:
82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exedescription ioc process File opened for modification C:\Windows\rss 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe File created C:\Windows\rss\csrss.exe 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.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 4316 schtasks.exe 2136 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.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" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exeinjector.execsrss.exepid process 1716 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe 1716 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe 4848 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe 4848 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe 4848 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe 4848 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe 4848 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe 4848 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe 4848 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe 4848 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe 4848 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe 4848 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 4260 csrss.exe 4260 csrss.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 4260 csrss.exe 4260 csrss.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe 8 injector.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
Processes:
82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exesvchost.execsrss.exedescription pid process Token: SeDebugPrivilege 1716 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Token: SeImpersonatePrivilege 1716 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe Token: SeTcbPrivilege 1344 svchost.exe Token: SeTcbPrivilege 1344 svchost.exe Token: SeBackupPrivilege 1344 svchost.exe Token: SeRestorePrivilege 1344 svchost.exe Token: SeBackupPrivilege 1344 svchost.exe Token: SeRestorePrivilege 1344 svchost.exe Token: SeBackupPrivilege 1344 svchost.exe Token: SeRestorePrivilege 1344 svchost.exe Token: SeBackupPrivilege 1344 svchost.exe Token: SeRestorePrivilege 1344 svchost.exe Token: SeSystemEnvironmentPrivilege 4260 csrss.exe Token: SeBackupPrivilege 1344 svchost.exe Token: SeRestorePrivilege 1344 svchost.exe Token: SeBackupPrivilege 1344 svchost.exe Token: SeRestorePrivilege 1344 svchost.exe -
Suspicious use of WriteProcessMemory 18 IoCs
Processes:
svchost.exe82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.execmd.execsrss.exedescription pid process target process PID 1344 wrote to memory of 4848 1344 svchost.exe 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe PID 1344 wrote to memory of 4848 1344 svchost.exe 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe PID 1344 wrote to memory of 4848 1344 svchost.exe 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe PID 4848 wrote to memory of 2216 4848 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe cmd.exe PID 4848 wrote to memory of 2216 4848 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe cmd.exe PID 2216 wrote to memory of 832 2216 cmd.exe netsh.exe PID 2216 wrote to memory of 832 2216 cmd.exe netsh.exe PID 4848 wrote to memory of 4260 4848 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe csrss.exe PID 4848 wrote to memory of 4260 4848 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe csrss.exe PID 4848 wrote to memory of 4260 4848 82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe csrss.exe PID 1344 wrote to memory of 4316 1344 svchost.exe schtasks.exe PID 1344 wrote to memory of 4316 1344 svchost.exe schtasks.exe PID 1344 wrote to memory of 2980 1344 svchost.exe schtasks.exe PID 1344 wrote to memory of 2980 1344 svchost.exe schtasks.exe PID 4260 wrote to memory of 8 4260 csrss.exe injector.exe PID 4260 wrote to memory of 8 4260 csrss.exe injector.exe PID 1344 wrote to memory of 2136 1344 svchost.exe schtasks.exe PID 1344 wrote to memory of 2136 1344 svchost.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe"C:\Users\Admin\AppData\Local\Temp\82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.exe"C:\Users\Admin\AppData\Local\Temp\82b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3.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:\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\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
MD59190e30fefb5681807fd2728cca2a856
SHA1784a981be2c57a7a8352b2a2c7fb7e583b2b17c9
SHA25682b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3
SHA51202d18aeac47eaa8123cba7610ff7fe3280f79f06d12c5dc3920381ed79e78fd9bf1a3808ca59bc5a4fa4cc5623812e8d5a355700af6424f442e189bc5bb8ca43
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C:\Windows\rss\csrss.exeFilesize
4.0MB
MD59190e30fefb5681807fd2728cca2a856
SHA1784a981be2c57a7a8352b2a2c7fb7e583b2b17c9
SHA25682b0939967dadd75a81f6b74c028f556287df06983e721918b035769f3e44aa3
SHA51202d18aeac47eaa8123cba7610ff7fe3280f79f06d12c5dc3920381ed79e78fd9bf1a3808ca59bc5a4fa4cc5623812e8d5a355700af6424f442e189bc5bb8ca43
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memory/8-149-0x0000000000000000-mapping.dmp
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memory/832-139-0x0000000000000000-mapping.dmp
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memory/1716-133-0x0000000002F30000-0x00000000037A7000-memory.dmpFilesize
8.5MB
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memory/1716-134-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/1716-136-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/1716-132-0x0000000002B3C000-0x0000000002F25000-memory.dmpFilesize
3.9MB
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memory/2136-152-0x0000000000000000-mapping.dmp
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memory/2216-137-0x0000000000000000-mapping.dmp
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memory/2980-148-0x0000000000000000-mapping.dmp
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memory/4260-145-0x0000000002E00000-0x00000000031E9000-memory.dmpFilesize
3.9MB
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memory/4260-146-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/4260-141-0x0000000000000000-mapping.dmp
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memory/4260-153-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/4316-147-0x0000000000000000-mapping.dmp
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memory/4848-144-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/4848-140-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/4848-138-0x00000000029DE000-0x0000000002DC7000-memory.dmpFilesize
3.9MB
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memory/4848-135-0x0000000000000000-mapping.dmp