Analysis
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max time kernel
149s -
max time network
153s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-05-2024 07:11
Static task
static1
Behavioral task
behavioral1
Sample
20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe
Resource
win10v2004-20240226-en
General
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Target
20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe
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Size
4.1MB
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MD5
edc4c9139e0be3af1b1931eb20c68d8d
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SHA1
3a9953a6db123f790ce29fddbec1ce15e0de9741
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SHA256
20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092
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SHA512
c40b6e1e8700b33dea43164f1cf4238adbc0bac23bf7c2208164f9af52b0a525021d4eacbe924bcdcc2439d2f98e495291a86bdbbd8e9df9963501e2c86fa5ed
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SSDEEP
98304:40IUXroYDzElV89sdV2qHm3LaKbYXl7F29tEHWEXgelgSAZWSyDiLl:jIU7SlV8K2X2AhEHFgekcy
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/3476-2-0x0000000004CF0000-0x00000000055DB000-memory.dmp family_glupteba behavioral2/memory/3476-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3476-23-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3476-54-0x0000000004CF0000-0x00000000055DB000-memory.dmp family_glupteba behavioral2/memory/3476-52-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3476-78-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1604-77-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/1604-126-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3284-202-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3284-213-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3284-215-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3284-218-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3284-221-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3284-224-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3284-227-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3284-230-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3284-233-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3284-236-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 2236 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 3284 csrss.exe 2600 injector.exe 5064 windefender.exe 1572 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/5064-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1572-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5064-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1572-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1572-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1572-231-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\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 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process 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 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 opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive 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:
20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe -
Drops file in Windows directory 4 IoCs
Processes:
20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.execsrss.exedescription ioc process File opened for modification C:\Windows\rss 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe File created C:\Windows\rss\csrss.exe 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.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 1652 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 1528 powershell.exe 2600 powershell.exe 2368 powershell.exe 4976 powershell.exe 3084 powershell.exe 3208 powershell.exe 2952 powershell.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 3916 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exe20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2182 = "Astrakhan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-672 = "AUS Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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\2a\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-241 = "Samoa Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-962 = "Paraguay Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.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\2a\52C64B7E\@tzres.dll,-1802 = "Line Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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\2a\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-191 = "Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exepowershell.exe20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 1528 powershell.exe 1528 powershell.exe 3476 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe 3476 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe 2600 powershell.exe 2600 powershell.exe 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe 2368 powershell.exe 2368 powershell.exe 4976 powershell.exe 4976 powershell.exe 3084 powershell.exe 3084 powershell.exe 3208 powershell.exe 3208 powershell.exe 2952 powershell.exe 2952 powershell.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 3284 csrss.exe 3284 csrss.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 3284 csrss.exe 3284 csrss.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 3284 csrss.exe 3284 csrss.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe 2600 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 1528 powershell.exe Token: SeDebugPrivilege 3476 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Token: SeImpersonatePrivilege 3476 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe Token: SeDebugPrivilege 2600 powershell.exe Token: SeDebugPrivilege 2368 powershell.exe Token: SeDebugPrivilege 4976 powershell.exe Token: SeDebugPrivilege 3084 powershell.exe Token: SeDebugPrivilege 3208 powershell.exe Token: SeDebugPrivilege 2952 powershell.exe Token: SeSystemEnvironmentPrivilege 3284 csrss.exe Token: SeSecurityPrivilege 1652 sc.exe Token: SeSecurityPrivilege 1652 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 3476 wrote to memory of 1528 3476 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe powershell.exe PID 3476 wrote to memory of 1528 3476 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe powershell.exe PID 3476 wrote to memory of 1528 3476 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe powershell.exe PID 1604 wrote to memory of 2600 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe powershell.exe PID 1604 wrote to memory of 2600 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe powershell.exe PID 1604 wrote to memory of 2600 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe powershell.exe PID 1604 wrote to memory of 4392 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe cmd.exe PID 1604 wrote to memory of 4392 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe cmd.exe PID 4392 wrote to memory of 2236 4392 cmd.exe netsh.exe PID 4392 wrote to memory of 2236 4392 cmd.exe netsh.exe PID 1604 wrote to memory of 2368 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe powershell.exe PID 1604 wrote to memory of 2368 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe powershell.exe PID 1604 wrote to memory of 2368 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe powershell.exe PID 1604 wrote to memory of 4976 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe powershell.exe PID 1604 wrote to memory of 4976 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe powershell.exe PID 1604 wrote to memory of 4976 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe powershell.exe PID 1604 wrote to memory of 3284 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe csrss.exe PID 1604 wrote to memory of 3284 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe csrss.exe PID 1604 wrote to memory of 3284 1604 20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe csrss.exe PID 3284 wrote to memory of 3084 3284 csrss.exe powershell.exe PID 3284 wrote to memory of 3084 3284 csrss.exe powershell.exe PID 3284 wrote to memory of 3084 3284 csrss.exe powershell.exe PID 3284 wrote to memory of 3208 3284 csrss.exe powershell.exe PID 3284 wrote to memory of 3208 3284 csrss.exe powershell.exe PID 3284 wrote to memory of 3208 3284 csrss.exe powershell.exe PID 3284 wrote to memory of 2952 3284 csrss.exe powershell.exe PID 3284 wrote to memory of 2952 3284 csrss.exe powershell.exe PID 3284 wrote to memory of 2952 3284 csrss.exe powershell.exe PID 3284 wrote to memory of 2600 3284 csrss.exe injector.exe PID 3284 wrote to memory of 2600 3284 csrss.exe injector.exe PID 5064 wrote to memory of 1844 5064 windefender.exe cmd.exe PID 5064 wrote to memory of 1844 5064 windefender.exe cmd.exe PID 5064 wrote to memory of 1844 5064 windefender.exe cmd.exe PID 1844 wrote to memory of 1652 1844 cmd.exe sc.exe PID 1844 wrote to memory of 1652 1844 cmd.exe sc.exe PID 1844 wrote to memory of 1652 1844 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\20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe"C:\Users\Admin\AppData\Local\Temp\20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3476 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1528 -
C:\Users\Admin\AppData\Local\Temp\20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.exe"C:\Users\Admin\AppData\Local\Temp\20feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092.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:1604 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2600 -
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:4392 -
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:2236 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2368 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4976 -
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:3284 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3084 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4824 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:396
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3208 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2952 -
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:2600 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3916 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:5064 -
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:1844 -
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:1652
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1572
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56ee656a6b062dd0afdd4a02771b507e7
SHA151b7b8eb2c6a0e6d2ba7f8f60bc20272052e0992
SHA256cdba9da28c9d708eee6effb989a5e5408638dc4872265c8f64d3abfc425f8389
SHA512d324f61ccfd00e5273505337b78f240223f576fe44b483cfff26d090b7d28d4df1dd5a1838fbfac3584330534036d8c3b8f53acad64065aa9455b78431f471cb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e7775e1f60c9e9edb5e8750155f1d8fb
SHA167fd844fe0f2bdc4c98630df0017001a52ee43ab
SHA256a697caf1aeff0629a369be8636820782f6b1f4baed1ff6cbd0b6a4c491342545
SHA512996d88f6a11efa91e28194cd43c7dec83edf769787c826c47f31d756655d09ac44295bf4a2c8ef050a36ebcf19b77dda162eb8f841fdfc8e0205ba2b6aff3856
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53b7923cfd89459217914ecfea8d9ca27
SHA1327ce4b4e294a66d0f749f180f93277d373a56f0
SHA2560113f4e2b363e5164b4f2a4f7c992172057e9c9ca1446c4a83257ae699393c16
SHA512cf5118d94c4d1f4942a95ab4b490bf5161f218a0feb2317925fa3227c07f7c759576396e23ee83e0eecc176abd38339024cab75b6fb33d0c6a0b0e475ec40a1c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a4fe431abbc221c31eeecde92eaf3e25
SHA11f6d73bddababce99a661a86b9abe110b81d4f93
SHA256e1bbfe42ee6d76885daa6c5229618f8c90ec0b997323646a1e6e9f2962f3f050
SHA5124db960db6b9852fa361adec439fc39f464673eb6ec111e4a3e5ee2e96c53da20537822ac7f4d766ace298a596dd20cf2f60122770bb700189d6645b717540ac4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD573dcc09448ca68c3acf328382d4fbef8
SHA1aa5054d93472610ff57d8084c9a3fc6cb45a7443
SHA256eb42ac10f8efb5ed3859375893f84914c2d603489c2bd9f960655e5e0914943c
SHA5121efff473501ae504f74262f1eac3c397d5e15a52c94e5ce0a876e02155bd1b6d1dff436d224d74301382118bd0d7e9680b03215565f7a6b25c9815e81b4f19c5
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Filesize
4.1MB
MD5edc4c9139e0be3af1b1931eb20c68d8d
SHA13a9953a6db123f790ce29fddbec1ce15e0de9741
SHA25620feaf7c5673f594e0e5e1ece1f0754c432522a26918c559f94c4ef875ea6092
SHA512c40b6e1e8700b33dea43164f1cf4238adbc0bac23bf7c2208164f9af52b0a525021d4eacbe924bcdcc2439d2f98e495291a86bdbbd8e9df9963501e2c86fa5ed
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec