Analysis
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max time kernel
150s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
26-03-2023 08:49
Static task
static1
General
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Target
8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe
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Size
4.1MB
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MD5
0dd33df1b1ae63f62aae798dca14d0b2
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SHA1
05d583463646b148b78f0021716a096f0a45d1e8
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SHA256
8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8
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SHA512
f92253634e43c1ee37c91e967c5a68992395f7532847dbbe30cf74a17bae779605f92d70127581e38a21a7ec81f84f9c5e910d107001cdfc041f9d054a0add1c
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SSDEEP
98304:UJGuGQT8aMKjrMfGWIAr7VsBzN6ZWmHsuD6pLGepgKs:UwuGQQaLAhNw5296lGUgx
Malware Config
Signatures
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Glupteba payload 17 IoCs
Processes:
resource yara_rule behavioral1/memory/920-134-0x0000000005270000-0x0000000005AE7000-memory.dmp family_glupteba behavioral1/memory/920-135-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/1828-141-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/4584-148-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/4584-149-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/4584-150-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/4584-151-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/4584-152-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/4584-153-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/4584-154-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/4584-155-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/4584-156-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/4584-157-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/4584-158-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/4584-159-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/4584-160-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba behavioral1/memory/4584-161-0x0000000000400000-0x0000000002F49000-memory.dmp family_glupteba -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid process 4584 csrss.exe 1484 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\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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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe -
Drops file in Windows directory 2 IoCs
Processes:
8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exedescription ioc process File opened for modification C:\Windows\rss 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe File created C:\Windows\rss\csrss.exe 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.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 2632 schtasks.exe 3824 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.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" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.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" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.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" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.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" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.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" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.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" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exeinjector.execsrss.exepid process 920 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe 920 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe 1828 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe 1828 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe 1828 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe 1828 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe 1828 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe 1828 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe 1828 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe 1828 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe 1828 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe 1828 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 4584 csrss.exe 4584 csrss.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 4584 csrss.exe 4584 csrss.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.execsrss.exedescription pid process Token: SeDebugPrivilege 920 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Token: SeImpersonatePrivilege 920 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe Token: SeSystemEnvironmentPrivilege 4584 csrss.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.execmd.execsrss.exedescription pid process target process PID 1828 wrote to memory of 5096 1828 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe cmd.exe PID 1828 wrote to memory of 5096 1828 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe cmd.exe PID 5096 wrote to memory of 3284 5096 cmd.exe netsh.exe PID 5096 wrote to memory of 3284 5096 cmd.exe netsh.exe PID 1828 wrote to memory of 4584 1828 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe csrss.exe PID 1828 wrote to memory of 4584 1828 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe csrss.exe PID 1828 wrote to memory of 4584 1828 8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe csrss.exe PID 4584 wrote to memory of 1484 4584 csrss.exe injector.exe PID 4584 wrote to memory of 1484 4584 csrss.exe injector.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe"C:\Users\Admin\AppData\Local\Temp\8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe"C:\Users\Admin\AppData\Local\Temp\8047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8.exe"2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- 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
- Manipulates WinMonFS driver.
- 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)
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
MD50dd33df1b1ae63f62aae798dca14d0b2
SHA105d583463646b148b78f0021716a096f0a45d1e8
SHA2568047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8
SHA512f92253634e43c1ee37c91e967c5a68992395f7532847dbbe30cf74a17bae779605f92d70127581e38a21a7ec81f84f9c5e910d107001cdfc041f9d054a0add1c
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C:\Windows\rss\csrss.exeFilesize
4.1MB
MD50dd33df1b1ae63f62aae798dca14d0b2
SHA105d583463646b148b78f0021716a096f0a45d1e8
SHA2568047976a57a30b3f3cf7a58525e7141b3bc0c3cf9d96f0d2aaeb3855c5ad55c8
SHA512f92253634e43c1ee37c91e967c5a68992395f7532847dbbe30cf74a17bae779605f92d70127581e38a21a7ec81f84f9c5e910d107001cdfc041f9d054a0add1c
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memory/920-134-0x0000000005270000-0x0000000005AE7000-memory.dmpFilesize
8.5MB
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memory/920-135-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/1828-141-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/4584-151-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/4584-155-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/4584-150-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/4584-148-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/4584-152-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/4584-153-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/4584-154-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/4584-149-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/4584-156-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/4584-157-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/4584-158-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/4584-159-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/4584-160-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB
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memory/4584-161-0x0000000000400000-0x0000000002F49000-memory.dmpFilesize
43.3MB