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Analysis
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max time kernel
150s -
max time network
143s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-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 behavioral2/memory/232-2-0x0000000005300000-0x0000000005BEB000-memory.dmp family_glupteba behavioral2/memory/232-3-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral2/memory/232-51-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral2/memory/3280-54-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral2/memory/3280-136-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral2/memory/3280-145-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral2/memory/4696-245-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral2/memory/4696-254-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral2/memory/4696-255-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral2/memory/4696-257-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral2/memory/4696-259-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral2/memory/4696-261-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral2/memory/4696-263-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral2/memory/4696-265-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral2/memory/4696-267-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral2/memory/4696-269-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba behavioral2/memory/4696-271-0x0000000000400000-0x0000000002F4A000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2980 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4696 csrss.exe 872 injector.exe 1580 windefender.exe 1972 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a78d-248.dat upx behavioral2/memory/1580-253-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1972-256-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1972-260-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1972-266-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2930051783-2551506282-3430162621-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\S-1-5-21-2930051783-2551506282-3430162621-1000\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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe File created C:\Windows\rss\csrss.exe ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4992 sc.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 1404 232 WerFault.exe 77 4924 3280 WerFault.exe 83 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3040 schtasks.exe 2620 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,-2892 = "Sudan Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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\22\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs 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,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates 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\22\52C64B7E\@tzres.dll,-362 = "GTB Standard Time" windefender.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\22\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1502 = "Turkey Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\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\22\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1832 powershell.exe 1832 powershell.exe 232 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 232 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 408 powershell.exe 408 powershell.exe 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 1940 powershell.exe 1940 powershell.exe 2828 powershell.exe 2828 powershell.exe 1220 powershell.exe 1220 powershell.exe 2392 powershell.exe 2392 powershell.exe 1204 powershell.exe 1204 powershell.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 4696 csrss.exe 4696 csrss.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 4696 csrss.exe 4696 csrss.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 4696 csrss.exe 4696 csrss.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe 872 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1832 powershell.exe Token: SeDebugPrivilege 232 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Token: SeImpersonatePrivilege 232 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe Token: SeDebugPrivilege 408 powershell.exe Token: SeDebugPrivilege 1940 powershell.exe Token: SeDebugPrivilege 2828 powershell.exe Token: SeDebugPrivilege 1220 powershell.exe Token: SeDebugPrivilege 2392 powershell.exe Token: SeDebugPrivilege 1204 powershell.exe Token: SeSystemEnvironmentPrivilege 4696 csrss.exe Token: SeSecurityPrivilege 4992 sc.exe Token: SeSecurityPrivilege 4992 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 232 wrote to memory of 1832 232 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 79 PID 232 wrote to memory of 1832 232 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 79 PID 232 wrote to memory of 1832 232 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 79 PID 3280 wrote to memory of 408 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 87 PID 3280 wrote to memory of 408 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 87 PID 3280 wrote to memory of 408 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 87 PID 3280 wrote to memory of 3988 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 89 PID 3280 wrote to memory of 3988 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 89 PID 3988 wrote to memory of 2980 3988 cmd.exe 91 PID 3988 wrote to memory of 2980 3988 cmd.exe 91 PID 3280 wrote to memory of 1940 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 92 PID 3280 wrote to memory of 1940 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 92 PID 3280 wrote to memory of 1940 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 92 PID 3280 wrote to memory of 2828 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 94 PID 3280 wrote to memory of 2828 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 94 PID 3280 wrote to memory of 2828 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 94 PID 3280 wrote to memory of 4696 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 96 PID 3280 wrote to memory of 4696 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 96 PID 3280 wrote to memory of 4696 3280 ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba.exe 96 PID 4696 wrote to memory of 1220 4696 csrss.exe 99 PID 4696 wrote to memory of 1220 4696 csrss.exe 99 PID 4696 wrote to memory of 1220 4696 csrss.exe 99 PID 4696 wrote to memory of 2392 4696 csrss.exe 104 PID 4696 wrote to memory of 2392 4696 csrss.exe 104 PID 4696 wrote to memory of 2392 4696 csrss.exe 104 PID 4696 wrote to memory of 1204 4696 csrss.exe 107 PID 4696 wrote to memory of 1204 4696 csrss.exe 107 PID 4696 wrote to memory of 1204 4696 csrss.exe 107 PID 4696 wrote to memory of 872 4696 csrss.exe 109 PID 4696 wrote to memory of 872 4696 csrss.exe 109 PID 1580 wrote to memory of 616 1580 windefender.exe 115 PID 1580 wrote to memory of 616 1580 windefender.exe 115 PID 1580 wrote to memory of 616 1580 windefender.exe 115 PID 616 wrote to memory of 4992 616 cmd.exe 116 PID 616 wrote to memory of 4992 616 cmd.exe 116 PID 616 wrote to memory of 4992 616 cmd.exe 116 -
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:232 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1832
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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:3280 -
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:408
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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:3988 -
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:2980
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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:1940
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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:2828
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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:4696 -
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:1220
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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:3040
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3312
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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:2392
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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:1204
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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:872
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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:2620
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1580 -
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:616 -
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:4992
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3280 -s 7923⤵
- Program crash
PID:4924
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 232 -s 9442⤵
- Program crash
PID:1404
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 232 -ip 2321⤵PID:3024
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3280 -ip 32801⤵PID:1476
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1972
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
MD5cce8e9eec53c3159104d7ddce373c972
SHA1a865942b7f7fce0df9d396e615929e8d59fdf691
SHA2560856f07d8497e695551305e56334e4e66aa5c5132c0d79dc91a8dfc425333d3e
SHA5126c0c8e3b9dee41ca998cd81823ecc1122d984e56107eec0f7f2e81545f47e9ab3b21f1fd5349ee04855402596dfd24eaee37cc5ac8fae1d1eaadd6f809676b8d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a00b7def2b301503f5331a439387b533
SHA15d7ff05113e60afd0f4fa33dde5e4d32dcb540b1
SHA256a04eb546ec084d1ee700b992e5210aa3ca445821a79eca96e4b3b5545a4938a2
SHA5125f738c57d50aeb76e6836cc1bfa28f105e44e9848e743c1c38c4ed549530bde0c519be7528ecfe336e472866a3fecfd0600b314c0841a0d6e73feb60928964b2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c2900d8efce920683acda0f74328f534
SHA127b78224d08398ca81fb2ffee719f98c800de10e
SHA256b71c6d9d327cab1db5f28cb3d9d59c04c4c55853fce2231dafd072716dd58da2
SHA51282bb3ae6817dabc7a5fe5016987d4e2a384d52f116e42caff9d721c1da036f4fceadae94aac76c98e1cd11899bb6fed2eb47957a2786de524fde2a3be65b5c3c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ceb266a3a101efce0249db1a351365fa
SHA113bd29e594b0b2d630edbe6dece39a8f9496aa02
SHA256cf66d1b1db345b171acad06d933916aadd59f25a3c2b61a91f67227a6761a4c6
SHA512c0e5c411a25179fbbe6e7c594f9344f1985fac8e47aae8a23ab2eaf893db300baa14d5a7c267a51a5e6c5fe5dfb0903f3c5a4aa43923922f7ec5275e4a1b6bf1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51e180cb5d9125a68b3d703b5892fda0a
SHA161b45cd60ab942814d4015995a2256d6b28fb46e
SHA2566a3e021433539c9e02bc94b7d1f006101619f303860850ff5d3deb9cee23b8ac
SHA512067baadaa3b4dbb91a837a0ae35fac8a69617e8ffdd17074344dce850c8933530674a06b9a71f576586f89a2e90ccdda465facfaae23f684abb28ca5b449c5f7
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Filesize
4.1MB
MD5a4bf3cbf44a04229bcc3fe94610bc885
SHA1736b13379056f07f5652fefc97822933a3723d39
SHA256ef9c1e9a777d04b22e866b65dec298718e44a674a25b582fc891f4bf3f5c1fba
SHA512c6dc631b4037980eb8ba7571051ddf53a79f0ebbdb4dcc69e92b2771ee5ea608129a9263e9a8491cb432259c78ce9bbc72309294cd80c468595f30a3b917bddb
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec