Analysis
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max time kernel
150s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-05-2024 23:08
Static task
static1
Behavioral task
behavioral1
Sample
ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe
Resource
win10v2004-20240426-en
General
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Target
ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe
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Size
4.1MB
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MD5
76d0843b14d8d99615d725dee9fd195c
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SHA1
9af2a7056a9c23c016ae4cec2b61e3e475a7d44e
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SHA256
ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8
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SHA512
18ed7b918cdbb0176072cba5d49bf6ead1ceb191d60b427b879ff0caeb180cd9ab3101c5284b0fb11c5956794a06de208df57246dce61aa059edc1e268757dca
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SSDEEP
98304:0mJz+EAFuKpzA6GjnwtAd4VH0G8BBOAZM6KCBe846:hh+Eouw86GbIivMwMVCB86
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/4360-2-0x0000000004C90000-0x000000000557B000-memory.dmp family_glupteba behavioral2/memory/4360-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4360-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4360-54-0x0000000004C90000-0x000000000557B000-memory.dmp family_glupteba behavioral2/memory/4360-51-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4856-121-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4856-127-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4792-204-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4792-214-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4792-215-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4792-217-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4792-219-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4792-221-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4792-223-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4792-225-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4792-227-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4792-229-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4792-231-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4792-233-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4792-235-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 728 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4792 csrss.exe 3800 injector.exe 4680 windefender.exe 4776 windefender.exe -
resource yara_rule behavioral2/files/0x000800000002a9ab-207.dat upx behavioral2/memory/4680-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4776-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4680-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4776-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4776-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\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 opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe -
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 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe File created C:\Windows\rss\csrss.exe ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.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 2556 sc.exe -
pid Process 4448 powershell.exe 2836 powershell.exe 2244 powershell.exe 2832 powershell.exe 1384 powershell.exe 2104 powershell.exe 260 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 1488 schtasks.exe 860 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,-72 = "Newfoundland Standard Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2771 = "Omsk Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1471 = "Magadan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1411 = "Syria Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2452 = "Saint Pierre Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2451 = "Saint Pierre 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" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.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\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs 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,-271 = "Greenwich Daylight Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.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,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-631 = "Tokyo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2836 powershell.exe 2836 powershell.exe 4360 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 4360 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 2244 powershell.exe 2244 powershell.exe 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 2832 powershell.exe 2832 powershell.exe 1384 powershell.exe 1384 powershell.exe 2104 powershell.exe 2104 powershell.exe 260 powershell.exe 260 powershell.exe 4448 powershell.exe 4448 powershell.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 4792 csrss.exe 4792 csrss.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 4792 csrss.exe 4792 csrss.exe 3800 injector.exe 3800 injector.exe 4792 csrss.exe 4792 csrss.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe 3800 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2836 powershell.exe Token: SeDebugPrivilege 4360 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Token: SeImpersonatePrivilege 4360 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe Token: SeDebugPrivilege 2244 powershell.exe Token: SeDebugPrivilege 2832 powershell.exe Token: SeDebugPrivilege 1384 powershell.exe Token: SeDebugPrivilege 2104 powershell.exe Token: SeDebugPrivilege 260 powershell.exe Token: SeDebugPrivilege 4448 powershell.exe Token: SeSystemEnvironmentPrivilege 4792 csrss.exe Token: SeSecurityPrivilege 2556 sc.exe Token: SeSecurityPrivilege 2556 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4360 wrote to memory of 2836 4360 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 82 PID 4360 wrote to memory of 2836 4360 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 82 PID 4360 wrote to memory of 2836 4360 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 82 PID 4856 wrote to memory of 2244 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 87 PID 4856 wrote to memory of 2244 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 87 PID 4856 wrote to memory of 2244 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 87 PID 4856 wrote to memory of 1796 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 89 PID 4856 wrote to memory of 1796 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 89 PID 1796 wrote to memory of 728 1796 cmd.exe 91 PID 1796 wrote to memory of 728 1796 cmd.exe 91 PID 4856 wrote to memory of 2832 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 92 PID 4856 wrote to memory of 2832 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 92 PID 4856 wrote to memory of 2832 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 92 PID 4856 wrote to memory of 1384 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 94 PID 4856 wrote to memory of 1384 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 94 PID 4856 wrote to memory of 1384 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 94 PID 4856 wrote to memory of 4792 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 96 PID 4856 wrote to memory of 4792 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 96 PID 4856 wrote to memory of 4792 4856 ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe 96 PID 4792 wrote to memory of 2104 4792 csrss.exe 97 PID 4792 wrote to memory of 2104 4792 csrss.exe 97 PID 4792 wrote to memory of 2104 4792 csrss.exe 97 PID 4792 wrote to memory of 260 4792 csrss.exe 103 PID 4792 wrote to memory of 260 4792 csrss.exe 103 PID 4792 wrote to memory of 260 4792 csrss.exe 103 PID 4792 wrote to memory of 4448 4792 csrss.exe 105 PID 4792 wrote to memory of 4448 4792 csrss.exe 105 PID 4792 wrote to memory of 4448 4792 csrss.exe 105 PID 4792 wrote to memory of 3800 4792 csrss.exe 107 PID 4792 wrote to memory of 3800 4792 csrss.exe 107 PID 4680 wrote to memory of 4936 4680 windefender.exe 119 PID 4680 wrote to memory of 4936 4680 windefender.exe 119 PID 4680 wrote to memory of 4936 4680 windefender.exe 119 PID 4936 wrote to memory of 2556 4936 cmd.exe 120 PID 4936 wrote to memory of 2556 4936 cmd.exe 120 PID 4936 wrote to memory of 2556 4936 cmd.exe 120 -
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\ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe"C:\Users\Admin\AppData\Local\Temp\ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4360 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2836
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C:\Users\Admin\AppData\Local\Temp\ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.exe"C:\Users\Admin\AppData\Local\Temp\ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8.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:4856 -
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:2244
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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:1796 -
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:728
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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:2832
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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:1384
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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:4792 -
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:2104
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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:1488
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2432
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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:260
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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:4448
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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:3800
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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:860
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4680 -
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:4936 -
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:2556
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4776
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD522532921ad525d81bd8aa5de50ca5e48
SHA101f1c6e99f0dbb0eb1a6f1e8eeb0b48057c09226
SHA25614bd75db198f4faf42419ea05124fdb9509d747984121d8df201230b4570b0d2
SHA51206b9af4b151b206fa588a649d648da18918e531663b1df21f51009d5796b2e4f4258f2f629b9775dc64f9c32e845537b125b78f943c9dd90f4a0d2cde8bbcd5b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5dd7798a3948a5ab00f2b216d80f88680
SHA137c5ddab2d2081367edf5397542fed26fb1d44a7
SHA256acd8cfb354c47bd13f988c7c8732a4c822df70da5fa3b2adafce9bba18770a9a
SHA512930429d67fa55e9cf6d3a0de96c66d8880108e5733bd75c5d2452cf8ed09b803b06622e01d11702bbab3fe2b0a3945bc380ff9dddd53acba8f0b74db628c752b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c42458ac6a5ef6491de301467da93974
SHA1ffcdcc3d638d7a4c1d6fba6844d80ee8cc363d1c
SHA2565eb15403c224805682d6eb434984277bd35a1571d4e4acc7e2f27adad6b7f256
SHA51290991dfa8dbf8f23d4eb4f94cbbb186c6a9098398e7fd5a5093b7357a3099ce56eb6a7d01aac265a759eabddc0c51abb31212c8b0bdce17623e9b8587396034c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD550991da88cb2b81403889aac25b3d5d5
SHA1015647a7e838d033ff125cb567e8e2645d29fd39
SHA256df3a03746ea853f072b6c742dc80210e42d63ee07948bd133392c96c6957cb38
SHA5127243b62054c414895e3ec354394612e100f5e1c3a53360d20440b40b64688c4fd663b0dae1f7d632c0d5bb38d4f759d9e4ca67a71fd57ad29e9485565c61410f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c3a2db734269c1df1046f9099ab191db
SHA18fbafa40d3c5b729bdaf1bbeda9a1cde07fab204
SHA2561ca0a6483c0a9c294900a634391f8702b21ca52917814a6e502f0fc407ae549e
SHA51288280983ae1b713b6c7d2d131443d4c86a0b0f863625558c61107d1816b5441e9960b03e8cad3b0b713e3a8bbea852fbd5cdf47a00170b686926c42d80da7c19
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Filesize
4.1MB
MD576d0843b14d8d99615d725dee9fd195c
SHA19af2a7056a9c23c016ae4cec2b61e3e475a7d44e
SHA256ac00afbf193c0c556551d80cc296df913e7656facb91a29e546dd016c42245d8
SHA51218ed7b918cdbb0176072cba5d49bf6ead1ceb191d60b427b879ff0caeb180cd9ab3101c5284b0fb11c5956794a06de208df57246dce61aa059edc1e268757dca
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec