Analysis
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max time kernel
151s -
max time network
122s -
platform
windows10-1703_x64 -
resource
win10-20230220-en -
resource tags
arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system -
submitted
20-02-2023 20:04
Static task
static1
General
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Target
978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe
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Size
4.0MB
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MD5
8238870f6daa14955f82e94b7bb1d4af
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SHA1
ad7751b028688caf825734ed41c5fecfa35bbc92
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SHA256
978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7
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SHA512
6eb7b85da87a66f31fcc0489fb11fb4c6e1e60d0f6559269f2084d0140fca0af51daf0737db2db2004f06cb5b90e772379d72f27c1fb0ce2cf4c5e9dde586ba2
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SSDEEP
98304:XiM/QgUZuS/H/9XMAqpyjYrPJPowySaVm1DCPeZyRXWxZ:XiZYA1X6g0rRPbtaV+DC5UZ
Malware Config
Signatures
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Glupteba payload 16 IoCs
Processes:
resource yara_rule behavioral1/memory/2460-119-0x0000000002FD0000-0x0000000003847000-memory.dmp family_glupteba behavioral1/memory/2460-120-0x0000000000400000-0x0000000000C91000-memory.dmp family_glupteba behavioral1/memory/2460-122-0x0000000002FD0000-0x0000000003847000-memory.dmp family_glupteba behavioral1/memory/3380-123-0x0000000002D10000-0x0000000003587000-memory.dmp family_glupteba behavioral1/memory/3380-128-0x0000000000400000-0x0000000000C91000-memory.dmp family_glupteba behavioral1/memory/1640-135-0x0000000000400000-0x0000000000C91000-memory.dmp family_glupteba behavioral1/memory/1640-136-0x0000000000400000-0x0000000000C91000-memory.dmp family_glupteba behavioral1/memory/1640-137-0x0000000000400000-0x0000000000C91000-memory.dmp family_glupteba behavioral1/memory/1640-138-0x0000000000400000-0x0000000000C91000-memory.dmp family_glupteba behavioral1/memory/1640-139-0x0000000000400000-0x0000000000C91000-memory.dmp family_glupteba behavioral1/memory/1640-140-0x0000000000400000-0x0000000000C91000-memory.dmp family_glupteba behavioral1/memory/1640-141-0x0000000000400000-0x0000000000C91000-memory.dmp family_glupteba behavioral1/memory/1640-142-0x0000000000400000-0x0000000000C91000-memory.dmp family_glupteba behavioral1/memory/1640-143-0x0000000000400000-0x0000000000C91000-memory.dmp family_glupteba behavioral1/memory/1640-144-0x0000000000400000-0x0000000000C91000-memory.dmp family_glupteba behavioral1/memory/1640-151-0x0000000000400000-0x0000000000C91000-memory.dmp family_glupteba -
Processes:
978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe = "0" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Executes dropped EXE 3 IoCs
Processes:
csrss.exeinjector.exef801950a962ddba14caaa44bf084b55c.exepid process 1640 csrss.exe 3052 injector.exe 3228 f801950a962ddba14caaa44bf084b55c.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe upx behavioral1/memory/3228-149-0x0000000000400000-0x0000000000C25000-memory.dmp upx C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe upx behavioral1/memory/3228-152-0x0000000000400000-0x0000000000C25000-memory.dmp upx -
Processes:
978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe = "0" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-640001698-3754512395-3275565439-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\S-1-5-21-640001698-3754512395-3275565439-1000\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:
978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe -
Drops file in Windows directory 2 IoCs
Processes:
978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exedescription ioc process File opened for modification C:\Windows\rss 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe File created C:\Windows\rss\csrss.exe 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.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 4824 schtasks.exe 3700 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exenetsh.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.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" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.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" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.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" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.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" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.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" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Key created \REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Control\NetTrace\Session netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.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" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exeinjector.execsrss.exepid process 2460 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe 2460 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe 3380 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe 3380 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe 3380 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe 3380 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe 3380 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe 3380 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe 3380 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe 3380 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe 3380 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe 3380 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 1640 csrss.exe 1640 csrss.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 1640 csrss.exe 1640 csrss.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe 3052 injector.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.execsrss.exedescription pid process Token: SeDebugPrivilege 2460 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Token: SeImpersonatePrivilege 2460 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe Token: SeSystemEnvironmentPrivilege 1640 csrss.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.execmd.execsrss.exedescription pid process target process PID 3380 wrote to memory of 4600 3380 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe cmd.exe PID 3380 wrote to memory of 4600 3380 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe cmd.exe PID 4600 wrote to memory of 4624 4600 cmd.exe netsh.exe PID 4600 wrote to memory of 4624 4600 cmd.exe netsh.exe PID 3380 wrote to memory of 1640 3380 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe csrss.exe PID 3380 wrote to memory of 1640 3380 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe csrss.exe PID 3380 wrote to memory of 1640 3380 978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe csrss.exe PID 1640 wrote to memory of 3052 1640 csrss.exe injector.exe PID 1640 wrote to memory of 3052 1640 csrss.exe injector.exe PID 1640 wrote to memory of 3228 1640 csrss.exe f801950a962ddba14caaa44bf084b55c.exe PID 1640 wrote to memory of 3228 1640 csrss.exe f801950a962ddba14caaa44bf084b55c.exe PID 1640 wrote to memory of 3228 1640 csrss.exe f801950a962ddba14caaa44bf084b55c.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\978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe"C:\Users\Admin\AppData\Local\Temp\978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe"C:\Users\Admin\AppData\Local\Temp\978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7.exe"2⤵
- Windows security bypass
- Windows security modification
- 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
- Modifies data under HKEY_USERS
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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)
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C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exeC:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe4⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exeFilesize
3.2MB
MD5f801950a962ddba14caaa44bf084b55c
SHA17cadc9076121297428442785536ba0df2d4ae996
SHA256c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f
SHA5124183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5
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C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exeFilesize
3.2MB
MD5f801950a962ddba14caaa44bf084b55c
SHA17cadc9076121297428442785536ba0df2d4ae996
SHA256c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f
SHA5124183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\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
MD58238870f6daa14955f82e94b7bb1d4af
SHA1ad7751b028688caf825734ed41c5fecfa35bbc92
SHA256978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7
SHA5126eb7b85da87a66f31fcc0489fb11fb4c6e1e60d0f6559269f2084d0140fca0af51daf0737db2db2004f06cb5b90e772379d72f27c1fb0ce2cf4c5e9dde586ba2
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C:\Windows\rss\csrss.exeFilesize
4.0MB
MD58238870f6daa14955f82e94b7bb1d4af
SHA1ad7751b028688caf825734ed41c5fecfa35bbc92
SHA256978160edcb632e2f90dfac9bc25692d782114ba8fc96b2ce1d6b6836f180d0b7
SHA5126eb7b85da87a66f31fcc0489fb11fb4c6e1e60d0f6559269f2084d0140fca0af51daf0737db2db2004f06cb5b90e772379d72f27c1fb0ce2cf4c5e9dde586ba2
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memory/1640-144-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/1640-141-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/1640-151-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/1640-135-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/1640-136-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/1640-137-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/1640-138-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/1640-139-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/1640-140-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/1640-143-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/1640-142-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/2460-119-0x0000000002FD0000-0x0000000003847000-memory.dmpFilesize
8.5MB
-
memory/2460-122-0x0000000002FD0000-0x0000000003847000-memory.dmpFilesize
8.5MB
-
memory/2460-120-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/3228-149-0x0000000000400000-0x0000000000C25000-memory.dmpFilesize
8.1MB
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memory/3228-152-0x0000000000400000-0x0000000000C25000-memory.dmpFilesize
8.1MB
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memory/3380-128-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/3380-123-0x0000000002D10000-0x0000000003587000-memory.dmpFilesize
8.5MB