Analysis
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max time kernel
152s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
02-02-2023 11:03
Static task
static1
General
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Target
ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe
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Size
4.1MB
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MD5
6f4963a6a706c81f9edbb0bc7ad34ed6
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SHA1
b3a308f0ecf51aef5d8d874af1602d114d143995
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SHA256
ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39
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SHA512
9ba9eb4bda18d78af56623bef6c35a550bb5218b27e37df9ddf513f76edcbcbe6bf1022580eb5f7e09e6b5a9f69c710e0509c82b143af3a159de06ce7694550d
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SSDEEP
98304:v6s7eYqXEy+L60B3c2olZONxtlg6KFySws2pMtBO8onbqb7d:vf7cXEjfsxlZOBlg6KFT52piQNnMd
Malware Config
Signatures
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Suspicious use of NtCreateUserProcessOtherParentProcess 4 IoCs
Processes:
svchost.exedescription pid process target process PID 4212 created 536 4212 svchost.exe ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe PID 4212 created 2500 4212 svchost.exe csrss.exe PID 4212 created 2500 4212 svchost.exe csrss.exe PID 4212 created 2500 4212 svchost.exe csrss.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid process 2500 csrss.exe 920 injector.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\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:
ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exedescription ioc process File created C:\Windows\rss\csrss.exe ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe File opened for modification C:\Windows\rss ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.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 4420 schtasks.exe 1464 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.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" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.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" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.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" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.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" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.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" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.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" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.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" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exeddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exeinjector.execsrss.exepid process 536 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe 536 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe 1832 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe 1832 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe 1832 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe 1832 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe 1832 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe 1832 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe 1832 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe 1832 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe 1832 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe 1832 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 2500 csrss.exe 2500 csrss.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 2500 csrss.exe 2500 csrss.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe 920 injector.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
Processes:
ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exesvchost.execsrss.exedescription pid process Token: SeDebugPrivilege 536 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Token: SeImpersonatePrivilege 536 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe Token: SeTcbPrivilege 4212 svchost.exe Token: SeTcbPrivilege 4212 svchost.exe Token: SeBackupPrivilege 4212 svchost.exe Token: SeRestorePrivilege 4212 svchost.exe Token: SeBackupPrivilege 4212 svchost.exe Token: SeRestorePrivilege 4212 svchost.exe Token: SeBackupPrivilege 4212 svchost.exe Token: SeRestorePrivilege 4212 svchost.exe Token: SeBackupPrivilege 4212 svchost.exe Token: SeRestorePrivilege 4212 svchost.exe Token: SeSystemEnvironmentPrivilege 2500 csrss.exe Token: SeBackupPrivilege 4212 svchost.exe Token: SeRestorePrivilege 4212 svchost.exe Token: SeBackupPrivilege 4212 svchost.exe Token: SeRestorePrivilege 4212 svchost.exe -
Suspicious use of WriteProcessMemory 18 IoCs
Processes:
svchost.exeddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.execmd.execsrss.exedescription pid process target process PID 4212 wrote to memory of 1832 4212 svchost.exe ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe PID 4212 wrote to memory of 1832 4212 svchost.exe ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe PID 4212 wrote to memory of 1832 4212 svchost.exe ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe PID 1832 wrote to memory of 2152 1832 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe cmd.exe PID 1832 wrote to memory of 2152 1832 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe cmd.exe PID 2152 wrote to memory of 4788 2152 cmd.exe netsh.exe PID 2152 wrote to memory of 4788 2152 cmd.exe netsh.exe PID 1832 wrote to memory of 2500 1832 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe csrss.exe PID 1832 wrote to memory of 2500 1832 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe csrss.exe PID 1832 wrote to memory of 2500 1832 ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe csrss.exe PID 4212 wrote to memory of 4420 4212 svchost.exe schtasks.exe PID 4212 wrote to memory of 4420 4212 svchost.exe schtasks.exe PID 4212 wrote to memory of 5016 4212 svchost.exe schtasks.exe PID 4212 wrote to memory of 5016 4212 svchost.exe schtasks.exe PID 2500 wrote to memory of 920 2500 csrss.exe injector.exe PID 2500 wrote to memory of 920 2500 csrss.exe injector.exe PID 4212 wrote to memory of 1464 4212 svchost.exe schtasks.exe PID 4212 wrote to memory of 1464 4212 svchost.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe"C:\Users\Admin\AppData\Local\Temp\ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.exe"C:\Users\Admin\AppData\Local\Temp\ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39.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
4.1MB
MD56f4963a6a706c81f9edbb0bc7ad34ed6
SHA1b3a308f0ecf51aef5d8d874af1602d114d143995
SHA256ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39
SHA5129ba9eb4bda18d78af56623bef6c35a550bb5218b27e37df9ddf513f76edcbcbe6bf1022580eb5f7e09e6b5a9f69c710e0509c82b143af3a159de06ce7694550d
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C:\Windows\rss\csrss.exeFilesize
4.1MB
MD56f4963a6a706c81f9edbb0bc7ad34ed6
SHA1b3a308f0ecf51aef5d8d874af1602d114d143995
SHA256ddc895784aefd374accc66e1f83c37e218336e0372022014ddd6c7785f9b9c39
SHA5129ba9eb4bda18d78af56623bef6c35a550bb5218b27e37df9ddf513f76edcbcbe6bf1022580eb5f7e09e6b5a9f69c710e0509c82b143af3a159de06ce7694550d
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memory/536-132-0x0000000002B5B000-0x0000000002F44000-memory.dmpFilesize
3.9MB
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memory/536-133-0x0000000002F50000-0x00000000037C7000-memory.dmpFilesize
8.5MB
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memory/536-134-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/536-136-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/920-149-0x0000000000000000-mapping.dmp
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memory/1464-152-0x0000000000000000-mapping.dmp
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memory/1832-135-0x0000000000000000-mapping.dmp
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memory/1832-140-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/1832-144-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/1832-138-0x0000000002A1F000-0x0000000002E08000-memory.dmpFilesize
3.9MB
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memory/2152-137-0x0000000000000000-mapping.dmp
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memory/2500-141-0x0000000000000000-mapping.dmp
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memory/2500-148-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/2500-147-0x0000000002E00000-0x00000000031E9000-memory.dmpFilesize
3.9MB
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memory/2500-153-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/4420-145-0x0000000000000000-mapping.dmp
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memory/4788-139-0x0000000000000000-mapping.dmp
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memory/5016-146-0x0000000000000000-mapping.dmp