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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
19/05/2024, 01:41
Static task
static1
Behavioral task
behavioral1
Sample
811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe
Resource
win10v2004-20240426-en
General
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Target
811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe
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Size
4.1MB
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MD5
e28c736b12b9ffec924ee1ce8d2f3874
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SHA1
d35c058e813ad02bd2b9950b3c7500d8847320c0
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SHA256
811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9
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SHA512
52970ae631da7a457c0d9a78cdb7783570dddb2f78bd060a68b777a89e803bfd1958b1e7cd64d0c12e4a58abbd716abc8a710499c96eee04d9ee2e1a2803f8a8
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SSDEEP
98304:SQGLdTw13YmTlGi/xMFRAVNS6wnhY59m5e0z8345l:SLpT0YNaxn5wu5s59Y4
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/3852-2-0x0000000004A10000-0x00000000052FB000-memory.dmp family_glupteba behavioral2/memory/3852-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3852-75-0x0000000004A10000-0x00000000052FB000-memory.dmp family_glupteba behavioral2/memory/3852-72-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3852-119-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2868-125-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2200-199-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2200-203-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2200-204-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2200-206-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2200-209-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2200-211-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2200-212-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2200-214-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2200-217-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2200-219-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2200-220-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2200-222-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2200-224-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1512 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 2200 csrss.exe 4620 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\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.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process 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 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.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe File opened for modification C:\Windows\rss 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe -
pid Process 3572 powershell.exe 1764 powershell.exe 1792 powershell.exe 2500 powershell.exe 4964 powershell.exe 5012 powershell.exe 1216 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1900 schtasks.exe 3960 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs 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\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs 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\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.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\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1792 powershell.exe 1792 powershell.exe 3852 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 3852 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 2500 powershell.exe 2500 powershell.exe 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 4964 powershell.exe 4964 powershell.exe 5012 powershell.exe 5012 powershell.exe 1216 powershell.exe 1216 powershell.exe 3572 powershell.exe 3572 powershell.exe 1764 powershell.exe 1764 powershell.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 2200 csrss.exe 2200 csrss.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 2200 csrss.exe 2200 csrss.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe 4620 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 1792 powershell.exe Token: SeDebugPrivilege 3852 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Token: SeImpersonatePrivilege 3852 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Token: SeDebugPrivilege 2500 powershell.exe Token: SeDebugPrivilege 4964 powershell.exe Token: SeDebugPrivilege 5012 powershell.exe Token: SeDebugPrivilege 1216 powershell.exe Token: SeDebugPrivilege 3572 powershell.exe Token: SeDebugPrivilege 1764 powershell.exe Token: SeSystemEnvironmentPrivilege 2200 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 3852 wrote to memory of 1792 3852 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 81 PID 3852 wrote to memory of 1792 3852 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 81 PID 3852 wrote to memory of 1792 3852 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 81 PID 2868 wrote to memory of 2500 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 87 PID 2868 wrote to memory of 2500 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 87 PID 2868 wrote to memory of 2500 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 87 PID 2868 wrote to memory of 1408 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 89 PID 2868 wrote to memory of 1408 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 89 PID 1408 wrote to memory of 1512 1408 cmd.exe 91 PID 1408 wrote to memory of 1512 1408 cmd.exe 91 PID 2868 wrote to memory of 4964 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 92 PID 2868 wrote to memory of 4964 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 92 PID 2868 wrote to memory of 4964 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 92 PID 2868 wrote to memory of 5012 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 94 PID 2868 wrote to memory of 5012 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 94 PID 2868 wrote to memory of 5012 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 94 PID 2868 wrote to memory of 2200 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 96 PID 2868 wrote to memory of 2200 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 96 PID 2868 wrote to memory of 2200 2868 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 96 PID 2200 wrote to memory of 1216 2200 csrss.exe 97 PID 2200 wrote to memory of 1216 2200 csrss.exe 97 PID 2200 wrote to memory of 1216 2200 csrss.exe 97 PID 2200 wrote to memory of 3572 2200 csrss.exe 103 PID 2200 wrote to memory of 3572 2200 csrss.exe 103 PID 2200 wrote to memory of 3572 2200 csrss.exe 103 PID 2200 wrote to memory of 1764 2200 csrss.exe 105 PID 2200 wrote to memory of 1764 2200 csrss.exe 105 PID 2200 wrote to memory of 1764 2200 csrss.exe 105 PID 2200 wrote to memory of 4620 2200 csrss.exe 107 PID 2200 wrote to memory of 4620 2200 csrss.exe 107 -
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\811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe"C:\Users\Admin\AppData\Local\Temp\811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3852 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1792
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C:\Users\Admin\AppData\Local\Temp\811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe"C:\Users\Admin\AppData\Local\Temp\811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.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:2868 -
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:2500
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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:1408 -
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:1512
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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:4964
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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:5012
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2200 -
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:1216
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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:1900
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:5076
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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:3572
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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:1764
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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:4620
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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:3960
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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
MD565f2381781251adc6f834c7ee82865da
SHA144bdf06580222700fbddf342d3d254d7295af746
SHA2564ddd204179e0a814b34a832ef182d6d4488829d92f239f3c2b23f8860356578d
SHA5123eb2bc560c5856d598ec5eec88fd12f23788a0813b3d07dbeb826be12c110702e44567830c8d9759373edd446bb40bf315ebd62c3d9bbebe5077deff47a3842f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5feec2de77532f4425ee16470f79b9e1c
SHA12e3b26e5cec20f210f45c97094f1824a87d1fe7e
SHA25600ff883e7c8c98eab58b0117b019746885c3e66dc552cf4f567495b98b131393
SHA51226eb50e118c4fb1b9c4fb92f808423a622a3a4e3c673feedae5faa31d830de0436206be06e1df098943e020d39e5962a9a530886b00cb8786dfbfe83f09added
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58cb7706611ed1a01104079946244b215
SHA10bd0dc537c79f5022714d78faf71644d95c93cac
SHA256da3f0b35cf039c48e0cdf8830ea0c6dfcae90dd3ef85a2b2b51d23de703fc82a
SHA5127475b921cb1833262d6931f488b7183532f5b6098b42e413a79239efbecac057bad458d69ab17a512dd52d9ea9e1f2ba0ebaf42d4a591fc0a97612748ffcc8fb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b68a563f445bee155b626d03be6cd8e0
SHA1d12960670b64f16a4c217e9683950a0e7376c1f9
SHA256a5a15db565772bf588b80a81ec59edfde54ad2c893e2fe6555760a5cefaa010e
SHA5123e06ae4bcc82665318af107e68ee0f966499bee998fc88cee1e24fea894205a1b833556d8c62e5a8b375f87e75970e7ac516783ccdcc369938de02271e892ae7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5440cc2f964bb245103646b702e12716a
SHA149675afd3a489d7b3ca3a9346730616138afe351
SHA2560723d4547344a4741d7417d88f7dd461d2bdc6078610a4df451120176ab5db5f
SHA5124a6e3ba222d7a5deb2da81fdf087f8b0c490bf4bfb59ca4e97d8d1cbefaaad6a45f6be5d6f3b086c97202f95156a4c13987eb424334997e6d4e98ac8921ec190
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Filesize
4.1MB
MD5e28c736b12b9ffec924ee1ce8d2f3874
SHA1d35c058e813ad02bd2b9950b3c7500d8847320c0
SHA256811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9
SHA51252970ae631da7a457c0d9a78cdb7783570dddb2f78bd060a68b777a89e803bfd1958b1e7cd64d0c12e4a58abbd716abc8a710499c96eee04d9ee2e1a2803f8a8