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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
06/04/2024, 21:35
Static task
static1
Behavioral task
behavioral1
Sample
ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe
Resource
win10v2004-20240226-en
General
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Target
ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe
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Size
4.1MB
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MD5
a4bf3cbf44a04229bcc3fe94610bc885
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SHA1
736b13379056f07f5652fefc97822933a3723d39
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SHA256
ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba
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SHA512
c6dc631b4037980eb8ba7571051ddf53a79f0ebbdb4dcc69e92b2771ee5ea608129a9263e9a8491cb432259c78ce9bbc72309294cd80c468595f30a3b917bddb
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SSDEEP
98304:XZTJtvrSQI+RdfgxNOWs+luvBV3Kjpf8MTPWtsil5y:JVJ5f9clKG+MTut9a
Malware Config
Signatures
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Glupteba payload 17 IoCs
resource yara_rule behavioral1/memory/5020-2-0x0000000005220000-0x0000000005B0B000-memory.dmp family_glupteba behavioral1/memory/5020-3-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral1/memory/5020-54-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral1/memory/5020-55-0x0000000005220000-0x0000000005B0B000-memory.dmp family_glupteba behavioral1/memory/3152-58-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral1/memory/3152-155-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral1/memory/4896-258-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral1/memory/4896-267-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral1/memory/4896-268-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral1/memory/4896-270-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral1/memory/4896-272-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral1/memory/4896-275-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral1/memory/4896-277-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral1/memory/4896-278-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral1/memory/4896-280-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral1/memory/4896-282-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral1/memory/4896-285-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1744 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4896 csrss.exe 3884 injector.exe 1448 windefender.exe 528 windefender.exe -
resource yara_rule behavioral1/files/0x0008000000023210-261.dat upx behavioral1/memory/1448-266-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/528-269-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/528-273-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\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\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe File created C:\Windows\rss\csrss.exe ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.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 4044 sc.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2276 3152 WerFault.exe 96 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1220 schtasks.exe 3404 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates 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\22\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates 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\22\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.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\Root\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3104 powershell.exe 3104 powershell.exe 5020 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 5020 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 4152 powershell.exe 4152 powershell.exe 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 676 powershell.exe 676 powershell.exe 4360 powershell.exe 4360 powershell.exe 3216 powershell.exe 3216 powershell.exe 3956 powershell.exe 3956 powershell.exe 1120 powershell.exe 1120 powershell.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 4896 csrss.exe 4896 csrss.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 4896 csrss.exe 4896 csrss.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 4896 csrss.exe 4896 csrss.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3104 powershell.exe Token: SeDebugPrivilege 5020 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Token: SeImpersonatePrivilege 5020 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Token: SeDebugPrivilege 4152 powershell.exe Token: SeDebugPrivilege 676 powershell.exe Token: SeDebugPrivilege 4360 powershell.exe Token: SeDebugPrivilege 3216 powershell.exe Token: SeDebugPrivilege 3956 powershell.exe Token: SeDebugPrivilege 1120 powershell.exe Token: SeSystemEnvironmentPrivilege 4896 csrss.exe Token: SeSecurityPrivilege 4044 sc.exe Token: SeSecurityPrivilege 4044 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 5020 wrote to memory of 3104 5020 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 89 PID 5020 wrote to memory of 3104 5020 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 89 PID 5020 wrote to memory of 3104 5020 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 89 PID 3152 wrote to memory of 4152 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 99 PID 3152 wrote to memory of 4152 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 99 PID 3152 wrote to memory of 4152 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 99 PID 3152 wrote to memory of 3856 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 101 PID 3152 wrote to memory of 3856 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 101 PID 3856 wrote to memory of 1744 3856 cmd.exe 103 PID 3856 wrote to memory of 1744 3856 cmd.exe 103 PID 3152 wrote to memory of 676 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 104 PID 3152 wrote to memory of 676 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 104 PID 3152 wrote to memory of 676 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 104 PID 3152 wrote to memory of 4360 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 106 PID 3152 wrote to memory of 4360 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 106 PID 3152 wrote to memory of 4360 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 106 PID 3152 wrote to memory of 4896 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 108 PID 3152 wrote to memory of 4896 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 108 PID 3152 wrote to memory of 4896 3152 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 108 PID 4896 wrote to memory of 3216 4896 csrss.exe 113 PID 4896 wrote to memory of 3216 4896 csrss.exe 113 PID 4896 wrote to memory of 3216 4896 csrss.exe 113 PID 4896 wrote to memory of 3956 4896 csrss.exe 119 PID 4896 wrote to memory of 3956 4896 csrss.exe 119 PID 4896 wrote to memory of 3956 4896 csrss.exe 119 PID 4896 wrote to memory of 1120 4896 csrss.exe 121 PID 4896 wrote to memory of 1120 4896 csrss.exe 121 PID 4896 wrote to memory of 1120 4896 csrss.exe 121 PID 4896 wrote to memory of 3884 4896 csrss.exe 123 PID 4896 wrote to memory of 3884 4896 csrss.exe 123 PID 1448 wrote to memory of 4284 1448 windefender.exe 129 PID 1448 wrote to memory of 4284 1448 windefender.exe 129 PID 1448 wrote to memory of 4284 1448 windefender.exe 129 PID 4284 wrote to memory of 4044 4284 cmd.exe 130 PID 4284 wrote to memory of 4044 4284 cmd.exe 130 PID 4284 wrote to memory of 4044 4284 cmd.exe 130 -
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\ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe"C:\Users\Admin\AppData\Local\Temp\ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5020 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3104
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C:\Users\Admin\AppData\Local\Temp\ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe"C:\Users\Admin\AppData\Local\Temp\ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.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:3152 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4152
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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:3856 -
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:1744
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:676
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4360
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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:4896 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3216
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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:1220
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2860
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3956
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1120
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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:3884
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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:3404
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1448 -
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:4284 -
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:4044
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3152 -s 7123⤵
- Program crash
PID:2276
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3152 -ip 31521⤵PID:4016
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:528
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53ad33d006d6ccb68a69ecb02c9310ee8
SHA1a4b9be78703e8dfa287355651a3c1d9037640150
SHA256b28bcf492342e7d029bc5ce1bd99891d6f8c4ebfa5d23fb5f35ff0aa5544e38c
SHA512810a94f28d3c0e3ac1b421b4efff968247a66bad3b9449d571986a48c8506ffaa4c58836e104927b2acf027580901fffc1938317a678699ac515102633c26a18
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD593f3e5a629bd0ceed11ff5804209e496
SHA14e34b0f720a512846d69afb2922681d070a66344
SHA256b0fca4f88b40de0c5aa16095fdbb08c27e7c389df7f1344b065c7b47c7bcd900
SHA512499828dbcdaedb1d747706f206bbd030c28f419872da5a8fe3cb9e293f828a29069430522fe88c553540d373dc3c7f9b6d9a0a22333c356be233f188ff8dfb7b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d754d5c3d2eb5465bdedbee00d3e62ca
SHA11eb4f29389c73ad248707c08b1adaad8afe51db1
SHA256e81f66a58eda2676e98143a3abc792455c7024ebdb3fda334d5af59f9764d8c0
SHA51261d3cfe1d41d66bfb903ba4506fa44ad3c5f7cc216e1967b44d06bb2c5ea7ad18c77f276aa0e4179e7298d98b9561d1f830aa3c41f8c48feb10c1bc0fbebb542
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5abe83e603e8056f74c9e4b65b87b7cda
SHA1a8368690e166e33d6fe3650c0b4b033f8ed62327
SHA2564dd6fdac01d844a4cd95bb412ef81c9ba1559df1094cdeedc7ed331f044d4c40
SHA5121ab97fdd85d1fef464ed9bc720e1dbeba115d0a9a25aad14be416f47e91d4727516cf392986f9b5d69e245a869fa5b938b80fbf5467ea3c95f90cc4e78a07c93
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58cb172c616767075208724e21d85bfa1
SHA138de98d63da72a5e1bf1a786dc236d2ff4d57463
SHA256a2f7929e0cd8b44f8fae4ee4a29c33ab7f1716551c5ad7da4d9f8f7f7426a69a
SHA51223df948a67c85540d51b828f41ab64d7f558ce008a9182be6ee3577b83104c9fb760c4ecc4397f2fe18ca70bc79cc26d243cea15591868e0513acc22e0fa17b6
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Filesize
4.1MB
MD5a4bf3cbf44a04229bcc3fe94610bc885
SHA1736b13379056f07f5652fefc97822933a3723d39
SHA256ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba
SHA512c6dc631b4037980eb8ba7571051ddf53a79f0ebbdb4dcc69e92b2771ee5ea608129a9263e9a8491cb432259c78ce9bbc72309294cd80c468595f30a3b917bddb
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec