Analysis
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max time kernel
150s -
max time network
147s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-05-2024 07:11
Static task
static1
Behavioral task
behavioral1
Sample
a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe
Resource
win10v2004-20240508-en
General
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Target
a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe
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Size
4.1MB
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MD5
159f774757ce7ceafa15e37a5b357dc3
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SHA1
454e7e3394e7cd9d8dd3639bc2e36049d499ef53
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SHA256
a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8
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SHA512
1de49e25642d3b90dc7751ebeb5bc67459052e27ed5d9aa3c6213a08626a527e0b070ee8eb9871eec948cf11a52023426ec7f9791b89638916985f8e9f858019
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SSDEEP
98304:o0IUXroYDzElV89sdV2qHm3LaKbYXl7F29tEHWEXgelgSAZWSyDiLF:zIU7SlV8K2X2AhEHFgekc6
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/4984-2-0x0000000004D20000-0x000000000560B000-memory.dmp family_glupteba behavioral2/memory/4984-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4984-52-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4984-54-0x0000000004D20000-0x000000000560B000-memory.dmp family_glupteba behavioral2/memory/4984-81-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1416-80-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/1416-129-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3996-149-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3996-204-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3996-215-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3996-219-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3996-223-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3996-227-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3996-231-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3996-235-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3996-239-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3996-243-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3996-247-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3996-251-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3732 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 3996 csrss.exe 1656 injector.exe 1692 windefender.exe 2960 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/1692-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2960-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1692-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2960-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2960-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\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 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 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:
a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe -
Drops file in Windows directory 4 IoCs
Processes:
a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.execsrss.exedescription ioc process File created C:\Windows\rss\csrss.exe a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 3820 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 3640 powershell.exe 2944 powershell.exe 1892 powershell.exe 3816 powershell.exe 3268 powershell.exe 4580 powershell.exe 1828 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 4068 schtasks.exe 4920 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exea04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 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\2a\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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,-931 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.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\2a\52C64B7E\@tzres.dll,-501 = "Nepal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1502 = "Turkey Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-661 = "Cen. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.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,-2892 = "Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.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,-172 = "Central Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.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,-3141 = "South Sudan Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exea04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exepowershell.exea04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 3640 powershell.exe 3640 powershell.exe 4984 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe 4984 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe 2944 powershell.exe 2944 powershell.exe 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe 1892 powershell.exe 1892 powershell.exe 3816 powershell.exe 3816 powershell.exe 3268 powershell.exe 3268 powershell.exe 4580 powershell.exe 4580 powershell.exe 1828 powershell.exe 1828 powershell.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 3996 csrss.exe 3996 csrss.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 3996 csrss.exe 3996 csrss.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 3996 csrss.exe 3996 csrss.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exea04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 3640 powershell.exe Token: SeDebugPrivilege 4984 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Token: SeImpersonatePrivilege 4984 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe Token: SeDebugPrivilege 2944 powershell.exe Token: SeDebugPrivilege 1892 powershell.exe Token: SeDebugPrivilege 3816 powershell.exe Token: SeDebugPrivilege 3268 powershell.exe Token: SeDebugPrivilege 4580 powershell.exe Token: SeDebugPrivilege 1828 powershell.exe Token: SeSystemEnvironmentPrivilege 3996 csrss.exe Token: SeSecurityPrivilege 3820 sc.exe Token: SeSecurityPrivilege 3820 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exea04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4984 wrote to memory of 3640 4984 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe powershell.exe PID 4984 wrote to memory of 3640 4984 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe powershell.exe PID 4984 wrote to memory of 3640 4984 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe powershell.exe PID 1416 wrote to memory of 2944 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe powershell.exe PID 1416 wrote to memory of 2944 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe powershell.exe PID 1416 wrote to memory of 2944 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe powershell.exe PID 1416 wrote to memory of 2148 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe cmd.exe PID 1416 wrote to memory of 2148 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe cmd.exe PID 2148 wrote to memory of 3732 2148 cmd.exe netsh.exe PID 2148 wrote to memory of 3732 2148 cmd.exe netsh.exe PID 1416 wrote to memory of 1892 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe powershell.exe PID 1416 wrote to memory of 1892 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe powershell.exe PID 1416 wrote to memory of 1892 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe powershell.exe PID 1416 wrote to memory of 3816 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe powershell.exe PID 1416 wrote to memory of 3816 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe powershell.exe PID 1416 wrote to memory of 3816 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe powershell.exe PID 1416 wrote to memory of 3996 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe csrss.exe PID 1416 wrote to memory of 3996 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe csrss.exe PID 1416 wrote to memory of 3996 1416 a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe csrss.exe PID 3996 wrote to memory of 3268 3996 csrss.exe powershell.exe PID 3996 wrote to memory of 3268 3996 csrss.exe powershell.exe PID 3996 wrote to memory of 3268 3996 csrss.exe powershell.exe PID 3996 wrote to memory of 4580 3996 csrss.exe powershell.exe PID 3996 wrote to memory of 4580 3996 csrss.exe powershell.exe PID 3996 wrote to memory of 4580 3996 csrss.exe powershell.exe PID 3996 wrote to memory of 1828 3996 csrss.exe powershell.exe PID 3996 wrote to memory of 1828 3996 csrss.exe powershell.exe PID 3996 wrote to memory of 1828 3996 csrss.exe powershell.exe PID 3996 wrote to memory of 1656 3996 csrss.exe injector.exe PID 3996 wrote to memory of 1656 3996 csrss.exe injector.exe PID 1692 wrote to memory of 248 1692 windefender.exe cmd.exe PID 1692 wrote to memory of 248 1692 windefender.exe cmd.exe PID 1692 wrote to memory of 248 1692 windefender.exe cmd.exe PID 248 wrote to memory of 3820 248 cmd.exe sc.exe PID 248 wrote to memory of 3820 248 cmd.exe sc.exe PID 248 wrote to memory of 3820 248 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\a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe"C:\Users\Admin\AppData\Local\Temp\a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4984 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3640 -
C:\Users\Admin\AppData\Local\Temp\a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.exe"C:\Users\Admin\AppData\Local\Temp\a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8.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:1416 -
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:2944 -
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:2148 -
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:3732 -
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:1892 -
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:3816 -
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:3996 -
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:3268 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4068 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3188
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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:4580 -
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:1828 -
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:1656 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4920 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1692 -
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:248 -
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:3820
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2960
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
MD541b803543b704f2ed2176cbf4f7e4302
SHA1acaeac29da95de8f71dcd02dced83da86d15992d
SHA2561010394c21d18c9cde610f76c025f3053635dd230722640e2536b3ee08f60a8d
SHA51288f592d8ac665a16eec3bab3b9437f991e3b42eb6694e6054c70b99eb7c0267802c4c545645a124de8ae5f5a0e86b848d6a6527eed6445247413b216c6f0836f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5dfa2a1caa68c4fe7ffce6cf5324978ff
SHA13fde50dd7a905e6ec172af903d71ee93cf278e6b
SHA256fc174faf8be385dfa2b279122a64d32f403b27b412e90213a9c91ad9975a0e43
SHA5120817fb503221bb9a8cc77bd5492af5fa9ab747f0217bd554ac5817d874656c4837d719a11e96a1aa9455efa842e86e580e4e437e0c8becbf9466db3bd27f6c1c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54c555f9bbd160e52bf6ef7e09e3e2b49
SHA1e112c9d5c4fe04d55676370e6ec16db5125368bb
SHA2565f02ca1b30e09e0c8eeac35e7956d102578899a04db64c906be9f18bffd0da6e
SHA512f57720d3b67bf14d05413c236158de8f1522798605d19bc79a5294c32921d335def2fbc2fd6a04ed47f055f91e5ded3aaa58f50ad9a47708b2be832943c29552
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5197facbed6c2d87f874e4aa9e05a5bc1
SHA122ac8171a987505d2397303e0f487400ec0355bc
SHA256128bdd918e36fdbf287e189a3e669aa8e0935eccee705a048761698495528b97
SHA5127dbea3064d33f178e05903a6c73420948e21e99a29ba48f3970b6a35a1aa428fb110361d27b599b846f44bcf2a2ff7a2b75ba96523e1b6f49815aecc195d0ebc
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD509780f3f216ccb00b105f4fda9481cd9
SHA10959d374276e626572feeed4efeff9b4b178415e
SHA2564c855046a653e10115ed8fc8a65fa7035bd8cd05f40a315c474768c959727a2a
SHA512a7a31f28c05eeabb2a9829714e902222776ffb5c94e9dcc57410cacd3c287c3a1d0ba112a6a517afea775084f1e606790f1faced708f3d5f9341d4b00cc0655a
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Filesize
4.1MB
MD5159f774757ce7ceafa15e37a5b357dc3
SHA1454e7e3394e7cd9d8dd3639bc2e36049d499ef53
SHA256a04aa0d975ca898622d1a10666e82f57285ef25fa3785eee6b30d30f2ec0aee8
SHA5121de49e25642d3b90dc7751ebeb5bc67459052e27ed5d9aa3c6213a08626a527e0b070ee8eb9871eec948cf11a52023426ec7f9791b89638916985f8e9f858019
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec