Analysis
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max time kernel
150s -
max time network
162s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
28/03/2024, 05:59
Static task
static1
Behavioral task
behavioral1
Sample
d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe
Resource
win10v2004-20240226-en
General
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Target
d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe
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Size
4.2MB
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MD5
f3f360c663a3ec6be8a8860bdeea011d
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SHA1
3ca219cb18010bde368479fd2b29c031d2b9536b
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SHA256
d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c
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SHA512
b5512e01987d8c5c61ecd362d8a010f9f3f37cbb76858a34b40646f706545a833298fca29e72044f13ef3db9b3e862b791902271076cd45ac2de47823571768a
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SSDEEP
98304:S/qQTbizf157Dp+Hd1ofw/HTJIxtHhuTcawwpbN+A+d2:S/u57Dp6oIHTuxG9wwpbNZ
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/4940-2-0x00000000032A0000-0x0000000003B8B000-memory.dmp family_glupteba behavioral2/memory/4940-3-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/4940-47-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/4940-54-0x00000000032A0000-0x0000000003B8B000-memory.dmp family_glupteba behavioral2/memory/1576-56-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/4940-57-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/1576-87-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/1576-104-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/1576-117-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/1576-164-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/3100-209-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/3100-245-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/3100-254-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/3100-259-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/3100-263-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/3100-267-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/3100-271-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/3100-275-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/3100-279-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba behavioral2/memory/3100-283-0x0000000000400000-0x0000000000ED4000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3184 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3100 csrss.exe 1632 injector.exe 4920 windefender.exe 3516 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a80f-249.dat upx behavioral2/memory/4920-253-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3516-257-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3516-265-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3516-277-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-160263616-143223877-1356318919-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-160263616-143223877-1356318919-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe File created C:\Windows\rss\csrss.exe d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.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 1960 sc.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 3548 schtasks.exe 1012 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-51 = "Greenland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-932 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.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,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-962 = "Paraguay Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs 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\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2491 = "Aus Central W. 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" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.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,-731 = "Fiji Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-651 = "AUS Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.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\22\52C64B7E\@tzres.dll,-222 = "Alaskan Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3260 powershell.exe 3260 powershell.exe 4940 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 4940 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 1628 powershell.exe 1628 powershell.exe 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 3516 powershell.exe 3516 powershell.exe 252 powershell.exe 252 powershell.exe 4728 powershell.exe 4728 powershell.exe 4216 powershell.exe 4216 powershell.exe 968 powershell.exe 968 powershell.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 3100 csrss.exe 3100 csrss.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 3100 csrss.exe 3100 csrss.exe 1632 injector.exe 1632 injector.exe 3100 csrss.exe 3100 csrss.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe 1632 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3260 powershell.exe Token: SeDebugPrivilege 4940 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Token: SeImpersonatePrivilege 4940 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe Token: SeDebugPrivilege 1628 powershell.exe Token: SeDebugPrivilege 3516 powershell.exe Token: SeDebugPrivilege 252 powershell.exe Token: SeDebugPrivilege 4728 powershell.exe Token: SeDebugPrivilege 4216 powershell.exe Token: SeDebugPrivilege 968 powershell.exe Token: SeSystemEnvironmentPrivilege 3100 csrss.exe Token: SeSecurityPrivilege 1960 sc.exe Token: SeSecurityPrivilege 1960 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4940 wrote to memory of 3260 4940 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 81 PID 4940 wrote to memory of 3260 4940 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 81 PID 4940 wrote to memory of 3260 4940 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 81 PID 1576 wrote to memory of 1628 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 86 PID 1576 wrote to memory of 1628 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 86 PID 1576 wrote to memory of 1628 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 86 PID 1576 wrote to memory of 572 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 88 PID 1576 wrote to memory of 572 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 88 PID 572 wrote to memory of 3184 572 cmd.exe 90 PID 572 wrote to memory of 3184 572 cmd.exe 90 PID 1576 wrote to memory of 3516 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 91 PID 1576 wrote to memory of 3516 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 91 PID 1576 wrote to memory of 3516 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 91 PID 1576 wrote to memory of 252 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 93 PID 1576 wrote to memory of 252 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 93 PID 1576 wrote to memory of 252 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 93 PID 1576 wrote to memory of 3100 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 95 PID 1576 wrote to memory of 3100 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 95 PID 1576 wrote to memory of 3100 1576 d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe 95 PID 3100 wrote to memory of 4728 3100 csrss.exe 96 PID 3100 wrote to memory of 4728 3100 csrss.exe 96 PID 3100 wrote to memory of 4728 3100 csrss.exe 96 PID 3100 wrote to memory of 4216 3100 csrss.exe 102 PID 3100 wrote to memory of 4216 3100 csrss.exe 102 PID 3100 wrote to memory of 4216 3100 csrss.exe 102 PID 3100 wrote to memory of 968 3100 csrss.exe 104 PID 3100 wrote to memory of 968 3100 csrss.exe 104 PID 3100 wrote to memory of 968 3100 csrss.exe 104 PID 3100 wrote to memory of 1632 3100 csrss.exe 106 PID 3100 wrote to memory of 1632 3100 csrss.exe 106 PID 4920 wrote to memory of 2356 4920 windefender.exe 112 PID 4920 wrote to memory of 2356 4920 windefender.exe 112 PID 4920 wrote to memory of 2356 4920 windefender.exe 112 PID 2356 wrote to memory of 1960 2356 cmd.exe 113 PID 2356 wrote to memory of 1960 2356 cmd.exe 113 PID 2356 wrote to memory of 1960 2356 cmd.exe 113 -
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\d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe"C:\Users\Admin\AppData\Local\Temp\d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4940 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3260
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C:\Users\Admin\AppData\Local\Temp\d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.exe"C:\Users\Admin\AppData\Local\Temp\d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c.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:1576 -
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:1628
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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:572 -
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:3184
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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:3516
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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:252
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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:3100 -
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:4728
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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:3548
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4540
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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:4216
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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:968
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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:1632
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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:1012
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4920 -
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:2356 -
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:1960
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3516
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
MD504ae199af450f0719f58443b1d57068d
SHA1589f87353914af26e76e2ea32f2569bab6f2fc23
SHA256456842c8b87d37f5817b6bee96d9fab4eb35214ad35b5cc19eafb7c3f1b2297e
SHA51216ebcf9a041e36b5c14854561a3bd3bda81fcef17b8ab1a3632a51ec3fe0234b2e74ecba16298cfd98ae41bd2a6c6f84e36d5c3a26f26afe07e01133ddbeb0bd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a4c7d1e7d21f6c28047193f65b1c4662
SHA13118a6310d1824bf42af760447a9b358a92df2e9
SHA256e8f983759cb87c6543a811cc1074794078936ee5ea4b5eeed5fdd93e37c2e9cd
SHA512bedc4cb5c89b8a651675b70513db224aea2574cb6833f26a90c8d7efc37fb514b7f339b9d2beb67992d7fc1984e463d7e0c87e86c5449005b739a4b98c5e7b82
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52bf4bc0f541eb6b48ee21cb5295f3b9f
SHA1f266efc6f26383b7fa43787e359998e3abcfe043
SHA2562f952e678ddd53800e3abd535a8e8098c7e372cab328cc0663b93c13d67f0cfb
SHA512a573030161c058de644ef4b5b9871f500ba8ab2ad2060708a7aa45dc15d4e4ec01bc529cf15356da93f9950f72e839da8d10d2701bf8b43aa83b4e8bb923cf44
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fdb59d35f63316eb1cda5cf0900b690a
SHA1f3eda1f6dc938730de789e11d5fdb06aa841ef15
SHA25647bef37a8822bc9966d237694db8f41d1823ac508fd4be26c3aaf4a0e262059b
SHA512284d690ff0fcc7f35e9cf3ba9991412be722b97c5261e5afc433857ebeb3f8e7dea0d6751e53848cc4de52c14153e04463672dbcadc1233b5075caf0aa19af26
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD573a1de0dd5a5dfb4ae4995a80cdf0e28
SHA112af9b89185bf2b303a27d4fbfdc55ff4b5dff70
SHA256ad438337007186ebe819ee311b978b5cd32fc6e0adc13fec884783ba782a7d8f
SHA512c6b3b5778db8538a6fe029e53f6b172baee578c89ef52a64d368eab1dcd731bacd005630079e9807333b269edd9b972ed3aa5cc48b6aeab1930ded38d644eed8
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Filesize
4.0MB
MD5366eb85f89811da06491c75991665730
SHA11a52bea762064e09c5e827eec2f8caf51a36ff94
SHA25634dc0b5f4162612f3dccafe86b28cb16ad192b0a124c024d47258cb8a75e0738
SHA512322bfed8bc01bca1ed8835ba29f1dfc9c68c66a9e8341a49afdb36994ac08e1030817c88077e3c214971b1fc3748125664e2259d2661b6d3304cb5c1c9da09f1
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Filesize
4.2MB
MD5f3f360c663a3ec6be8a8860bdeea011d
SHA13ca219cb18010bde368479fd2b29c031d2b9536b
SHA256d1671a9d35dd0b3d1d6ce05bb0019eb5c56206ed313aeb4b92c4105dc328a94c
SHA512b5512e01987d8c5c61ecd362d8a010f9f3f37cbb76858a34b40646f706545a833298fca29e72044f13ef3db9b3e862b791902271076cd45ac2de47823571768a
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec