Analysis
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max time kernel
150s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
16/05/2024, 15:25
Static task
static1
Behavioral task
behavioral1
Sample
a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe
Resource
win10v2004-20240426-en
General
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Target
a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe
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Size
4.1MB
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MD5
38454d5d515105d6a21060bb2a51f6b1
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SHA1
3b2b952126d535dba7da979e8ef21a1b78efe974
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SHA256
a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe
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SHA512
cd323ff122e2087d1b578010c788e6e5816b46d09234a2e327d13337c64e8551e076a67da7139c771e839f1a13736260b9dc32f8b50c7f0f75c9da10590213ad
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SSDEEP
98304:YvzBhIm6zIE7SIO2RhCG9zRnSMmyRgCXxFQG9ct:OzBhDcIv8bCGbNmyXXxFQGyt
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/3024-2-0x0000000002E30000-0x000000000371B000-memory.dmp family_glupteba behavioral2/memory/3024-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3024-51-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3024-52-0x0000000002E30000-0x000000000371B000-memory.dmp family_glupteba behavioral2/memory/3004-54-0x0000000002A20000-0x0000000002E1F000-memory.dmp family_glupteba behavioral2/memory/3004-125-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4292-203-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4292-204-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4292-214-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4292-216-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4292-218-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4292-220-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4292-222-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4292-224-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4292-226-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4292-228-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4292-230-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4292-232-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2780 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4292 csrss.exe 5012 injector.exe 468 windefender.exe 2500 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa01-207.dat upx behavioral2/memory/468-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2500-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/468-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2500-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2500-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
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\"" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.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 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 File created 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 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe File created C:\Windows\rss\csrss.exe a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.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.
pid Process 2920 sc.exe -
pid Process 4772 powershell.exe 1696 powershell.exe 3264 powershell.exe 1516 powershell.exe 2072 powershell.exe 2188 powershell.exe 3652 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 1972 schtasks.exe 4076 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-32 = "Mid-Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs 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\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.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\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.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\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-261 = "GMT Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-434 = "Georgian 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,-672 = "AUS Eastern Standard Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\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\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.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\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.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\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3264 powershell.exe 3264 powershell.exe 3024 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 3024 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 1516 powershell.exe 1516 powershell.exe 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 2072 powershell.exe 2072 powershell.exe 2188 powershell.exe 2188 powershell.exe 3652 powershell.exe 3652 powershell.exe 4772 powershell.exe 4772 powershell.exe 1696 powershell.exe 1696 powershell.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 4292 csrss.exe 4292 csrss.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 4292 csrss.exe 4292 csrss.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 4292 csrss.exe 4292 csrss.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe 5012 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3264 powershell.exe Token: SeDebugPrivilege 3024 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Token: SeImpersonatePrivilege 3024 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe Token: SeDebugPrivilege 1516 powershell.exe Token: SeDebugPrivilege 2072 powershell.exe Token: SeDebugPrivilege 2188 powershell.exe Token: SeDebugPrivilege 3652 powershell.exe Token: SeDebugPrivilege 4772 powershell.exe Token: SeDebugPrivilege 1696 powershell.exe Token: SeSystemEnvironmentPrivilege 4292 csrss.exe Token: SeSecurityPrivilege 2920 sc.exe Token: SeSecurityPrivilege 2920 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3024 wrote to memory of 3264 3024 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 78 PID 3024 wrote to memory of 3264 3024 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 78 PID 3024 wrote to memory of 3264 3024 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 78 PID 3004 wrote to memory of 1516 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 83 PID 3004 wrote to memory of 1516 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 83 PID 3004 wrote to memory of 1516 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 83 PID 3004 wrote to memory of 3452 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 85 PID 3004 wrote to memory of 3452 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 85 PID 3452 wrote to memory of 2780 3452 cmd.exe 87 PID 3452 wrote to memory of 2780 3452 cmd.exe 87 PID 3004 wrote to memory of 2072 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 88 PID 3004 wrote to memory of 2072 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 88 PID 3004 wrote to memory of 2072 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 88 PID 3004 wrote to memory of 2188 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 90 PID 3004 wrote to memory of 2188 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 90 PID 3004 wrote to memory of 2188 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 90 PID 3004 wrote to memory of 4292 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 92 PID 3004 wrote to memory of 4292 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 92 PID 3004 wrote to memory of 4292 3004 a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe 92 PID 4292 wrote to memory of 3652 4292 csrss.exe 93 PID 4292 wrote to memory of 3652 4292 csrss.exe 93 PID 4292 wrote to memory of 3652 4292 csrss.exe 93 PID 4292 wrote to memory of 4772 4292 csrss.exe 98 PID 4292 wrote to memory of 4772 4292 csrss.exe 98 PID 4292 wrote to memory of 4772 4292 csrss.exe 98 PID 4292 wrote to memory of 1696 4292 csrss.exe 101 PID 4292 wrote to memory of 1696 4292 csrss.exe 101 PID 4292 wrote to memory of 1696 4292 csrss.exe 101 PID 4292 wrote to memory of 5012 4292 csrss.exe 103 PID 4292 wrote to memory of 5012 4292 csrss.exe 103 PID 468 wrote to memory of 3160 468 windefender.exe 109 PID 468 wrote to memory of 3160 468 windefender.exe 109 PID 468 wrote to memory of 3160 468 windefender.exe 109 PID 3160 wrote to memory of 2920 3160 cmd.exe 110 PID 3160 wrote to memory of 2920 3160 cmd.exe 110 PID 3160 wrote to memory of 2920 3160 cmd.exe 110 -
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\a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe"C:\Users\Admin\AppData\Local\Temp\a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3024 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3264
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C:\Users\Admin\AppData\Local\Temp\a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.exe"C:\Users\Admin\AppData\Local\Temp\a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe.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:3004 -
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:1516
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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:3452 -
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:2780
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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:2072
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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:2188
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4292 -
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:3652
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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:1972
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2612
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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:4772
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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:1696
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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:5012
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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:4076
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:468 -
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:3160 -
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:2920
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2500
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
MD53ef56a6497f77bc2f170dc117e24eac0
SHA19d4ee33af1a1bdb66b9512ed6cb0374a50d1f796
SHA25676e8d06100fc65d5e90c4b3e1f7056f816edbf44d16f28afeb543b57c405e479
SHA51238e69c2e7af5def14d0c8878d031afa5d5a8c90a0454469401768856e5de1970000d8c435639402b7c069fb129d4cb9b24fedde9137a7f8c2366a0d3b3f9f21a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD585d13466a4b70a1fbfce5c678b8b6ba2
SHA10e017e56951d21c955e6425161de29c24a014f6f
SHA256401b86d01ca018456db9162e9683c8657c218a8a2eaec7144ecd16778f5468dd
SHA512bf18f97eae0a65c38962aa6e3c08ac9d4e71fb6b42ba7a50f4d4ef15006bc9c1e52593e61f3fbc0e9c4384649c51ed4d2e6f6250314e123a4c414cb1e793dbae
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fa875a5b2d5f7d0c6b19d7d25638aeb3
SHA1c04cf9110d1d847695fb9bb0ef90f54c85968e56
SHA2565bb315f9d12213392c71bd10afdcb547286e70cb1e617565d20200ce69c1a426
SHA512f0cfc6c3a122ec718d263b2842d3a056d992908c06947d06348dcb2b3271af7d5925cfbe8efbcd2646a13deee1d611c37d17ae04318f8cfdc3cf5b5b28ec0d55
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53f9a6b71201c2ce5950c055aef493425
SHA10d96e4e402844e8212aefb9297460dea61b6bba5
SHA256e66169522ead29c79017c08cf80f31a0b57aa549fd5e0a62ed34e74e7d977f58
SHA512235355e7ce8a545d47db12a97ed08771a00be9498d2b454d6d7bf559353ebe777e2d7ab883852405a093579a40339aab3f7283527850b7a129f963493bbd87fe
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD529bfe6de3c66c9812a14193b83904242
SHA1ac82e70d1e54d6a24d9f7eace714a5375442f30c
SHA256eec23d21861e8981cb83f7885a92cdc59a255043e6881ca095f08d225f911f3a
SHA5127e2e156266233dd7f6395f15bc6714bfcdc57e7e701f632aca957af54234ecff1289fbc696d9082eb8f3b0820d4a6e235896099d36d36342eb90cceb891795c2
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Filesize
4.1MB
MD538454d5d515105d6a21060bb2a51f6b1
SHA13b2b952126d535dba7da979e8ef21a1b78efe974
SHA256a63b7d1d1e1190e1cffbd97c783eb30aa345d70bf9bce8764174456acaa66bfe
SHA512cd323ff122e2087d1b578010c788e6e5816b46d09234a2e327d13337c64e8551e076a67da7139c771e839f1a13736260b9dc32f8b50c7f0f75c9da10590213ad
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec