Analysis
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max time kernel
150s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
20-04-2024 15:28
Static task
static1
Behavioral task
behavioral1
Sample
a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe
Resource
win10v2004-20240226-en
General
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Target
a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe
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Size
4.2MB
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MD5
e546a19b25aeeb8925c0c490ad2e73aa
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SHA1
3725e19e4bb2684943f86d2da871e044cb43f77c
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SHA256
a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438
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SHA512
910ff1c6fa3516937efc0e39e3792d9b6e727c1c6470db6226c8d90590515d9abcfa28439af033e46e9fcdd5aa571ac40f9332ee7ee372a83f2a975eb6f8ac71
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SSDEEP
49152:JKOdvREmi8iTwPpeYBnAu4QJI7RESGN2UNQnUyHdr+bW0USBgrsqhT/DWSjgq2SV:AOLEfT6eYBhfhWV+b2vbWNq2SbuhRY
Malware Config
Signatures
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Glupteba payload 21 IoCs
Processes:
resource yara_rule behavioral2/memory/4080-2-0x00000000040C0000-0x00000000049AB000-memory.dmp family_glupteba behavioral2/memory/4080-3-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2376-53-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2376-54-0x00000000040A0000-0x000000000498B000-memory.dmp family_glupteba behavioral2/memory/4080-86-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2376-121-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1320-124-0x0000000004500000-0x0000000004DEB000-memory.dmp family_glupteba behavioral2/memory/1320-125-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1320-218-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1320-228-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1320-230-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1320-233-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1320-237-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1320-240-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1320-243-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1320-246-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1320-248-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1320-251-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1320-255-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1320-258-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1320-261-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 4532 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 1320 csrss.exe 4788 injector.exe 3584 windefender.exe 3036 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/3584-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3036-231-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3036-236-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\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 -
Drops file in System32 directory 6 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.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:
a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe -
Drops file in Windows directory 4 IoCs
Processes:
a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.execsrss.exedescription ioc process File opened for modification C:\Windows\rss a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe File created C:\Windows\rss\csrss.exe a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 4332 sc.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 2692 schtasks.exe 4868 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exewindefender.exea594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-501 = "Nepal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-172 = "Central Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1662 = "Bahia Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exea594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exepowershell.exea594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4960 powershell.exe 4960 powershell.exe 4080 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe 4080 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe 2180 powershell.exe 2180 powershell.exe 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe 4668 powershell.exe 4668 powershell.exe 4792 powershell.exe 4792 powershell.exe 1696 powershell.exe 1696 powershell.exe 240 powershell.exe 240 powershell.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 1320 csrss.exe 1320 csrss.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 1320 csrss.exe 1320 csrss.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 1320 csrss.exe 1320 csrss.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe 4788 injector.exe -
Suspicious use of AdjustPrivilegeToken 11 IoCs
Processes:
powershell.exea594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 4960 powershell.exe Token: SeDebugPrivilege 4080 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Token: SeImpersonatePrivilege 4080 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe Token: SeDebugPrivilege 2180 powershell.exe Token: SeDebugPrivilege 4668 powershell.exe Token: SeDebugPrivilege 4792 powershell.exe Token: SeDebugPrivilege 1696 powershell.exe Token: SeDebugPrivilege 240 powershell.exe Token: SeSystemEnvironmentPrivilege 1320 csrss.exe Token: SeSecurityPrivilege 4332 sc.exe Token: SeSecurityPrivilege 4332 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exea594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4080 wrote to memory of 4960 4080 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe powershell.exe PID 4080 wrote to memory of 4960 4080 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe powershell.exe PID 4080 wrote to memory of 4960 4080 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe powershell.exe PID 2376 wrote to memory of 2180 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe powershell.exe PID 2376 wrote to memory of 2180 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe powershell.exe PID 2376 wrote to memory of 2180 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe powershell.exe PID 2376 wrote to memory of 1880 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe cmd.exe PID 2376 wrote to memory of 1880 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe cmd.exe PID 1880 wrote to memory of 4532 1880 cmd.exe netsh.exe PID 1880 wrote to memory of 4532 1880 cmd.exe netsh.exe PID 2376 wrote to memory of 108 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe powershell.exe PID 2376 wrote to memory of 108 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe powershell.exe PID 2376 wrote to memory of 108 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe powershell.exe PID 2376 wrote to memory of 4668 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe powershell.exe PID 2376 wrote to memory of 4668 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe powershell.exe PID 2376 wrote to memory of 4668 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe powershell.exe PID 2376 wrote to memory of 1320 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe csrss.exe PID 2376 wrote to memory of 1320 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe csrss.exe PID 2376 wrote to memory of 1320 2376 a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe csrss.exe PID 1320 wrote to memory of 4792 1320 csrss.exe powershell.exe PID 1320 wrote to memory of 4792 1320 csrss.exe powershell.exe PID 1320 wrote to memory of 4792 1320 csrss.exe powershell.exe PID 1320 wrote to memory of 1696 1320 csrss.exe powershell.exe PID 1320 wrote to memory of 1696 1320 csrss.exe powershell.exe PID 1320 wrote to memory of 1696 1320 csrss.exe powershell.exe PID 1320 wrote to memory of 240 1320 csrss.exe powershell.exe PID 1320 wrote to memory of 240 1320 csrss.exe powershell.exe PID 1320 wrote to memory of 240 1320 csrss.exe powershell.exe PID 1320 wrote to memory of 4788 1320 csrss.exe injector.exe PID 1320 wrote to memory of 4788 1320 csrss.exe injector.exe PID 3584 wrote to memory of 5084 3584 windefender.exe cmd.exe PID 3584 wrote to memory of 5084 3584 windefender.exe cmd.exe PID 3584 wrote to memory of 5084 3584 windefender.exe cmd.exe PID 5084 wrote to memory of 4332 5084 cmd.exe sc.exe PID 5084 wrote to memory of 4332 5084 cmd.exe sc.exe PID 5084 wrote to memory of 4332 5084 cmd.exe sc.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\a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe"C:\Users\Admin\AppData\Local\Temp\a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4080 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4960
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C:\Users\Admin\AppData\Local\Temp\a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.exe"C:\Users\Admin\AppData\Local\Temp\a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438.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
PID:2376 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2180
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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
PID:1880 -
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
PID:4532
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Modifies data under HKEY_USERS
PID:108
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4668
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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.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1320 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4792
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:2692
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2416
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1696
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:240
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:4788
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4868
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3584 -
C:\Windows\SysWOW64\cmd.execmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)5⤵
- Suspicious use of WriteProcessMemory
PID:5084 -
C:\Windows\SysWOW64\sc.exesc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)6⤵
- Launches sc.exe
- Suspicious use of AdjustPrivilegeToken
PID:4332
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3036
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD527579cfc85c2608f9227456d121f5d65
SHA1accf93cbf189ab660e9ac770dee2a9a2590e8d17
SHA256645e222661d96a24c050d2873eec98f99a2b4781e69034e7d57c5f50191213bd
SHA512ea818601f375e71ca44306e967125db86ba42a78c23c2fbc953e6969da3f486eeffb1d93b7aacbc8be9fb301a9d7155629bad44e40df6ce63335d9f67e2500b3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5498c289b8a87a9105e696027324ff89c
SHA1d3364f7d95e52a58ae1386faf832d8d7d46526e1
SHA256d777ccbc0cdd3d25b89be63cf7b06bea752af9b7adb0b8ee17f330dbf845e4f1
SHA512d0dee55748982e27c8893ab014657581b556b606602182705b345fd70e1128453ba6dbae40455035e1c10af4c04de60c23576764f2df9cc6099d40c497c56b10
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d9a9964bcdb6b2c5a53f82dc14c0d8c8
SHA13bfec3b23718b3b72cbd67150a097a30c6405a72
SHA256e5991d9c3fcb3163226d0afeb839d9babfd4225008ced462b5e9ee5767fc986f
SHA5121992aa52255afb03a52dcb85ee89473e3eeef0ec6e79d5aa3d75207e41bf643866b6fb37049f4d390f649cf2f4a21823168f13a56cc4dd204b2b84a0cab1964b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f733eb3df11669349c1a8188b7b9a8d8
SHA1b9584aeb8e44a124c0a10c6bf4073dbb45e24005
SHA2562936f9f27230b1276fbf9c5299604a5a5d3034e864d92979c7c844e75711317b
SHA512576f1b323f4d0acaae61149306b3a08eb874d9fdaaee4ff55f1246828950da0db75d97cf5f9d20cb358c7329e6c68603ebea41d7e02b63e327e49f9586c045f2
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Filesize
4.2MB
MD5e546a19b25aeeb8925c0c490ad2e73aa
SHA13725e19e4bb2684943f86d2da871e044cb43f77c
SHA256a594116cf787c84e6d459ddbf1f2d31cd18974641073eadb265e889e58ae8438
SHA512910ff1c6fa3516937efc0e39e3792d9b6e727c1c6470db6226c8d90590515d9abcfa28439af033e46e9fcdd5aa571ac40f9332ee7ee372a83f2a975eb6f8ac71
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec