Analysis
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max time kernel
150s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
20-05-2024 04:11
Static task
static1
Behavioral task
behavioral1
Sample
f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe
Resource
win10v2004-20240426-en
General
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Target
f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe
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Size
4.1MB
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MD5
5fe91888334e7f87e9fc44d33eaf9be0
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SHA1
cc472952110df8fc1a27f22f6d1ad3a073dfb568
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SHA256
f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed
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SHA512
52bd3104f5916e0fbba078278e46af0c9553f2d49fc6e09702c9f28d1c6274723a44fc77a37de4a998a34ecb3859127fe1506ef5de5aadaf8b6779d3a93ef933
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SSDEEP
98304:GQAQcsa3GhfWYEvpb4LdECaqY+VYhFzXw/u5g9cAd9nB:GQAQcDPYxuCJe7X5ghfB
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/1956-2-0x0000000004910000-0x00000000051FB000-memory.dmp family_glupteba behavioral1/memory/1956-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4752-108-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/1956-134-0x0000000004910000-0x00000000051FB000-memory.dmp family_glupteba behavioral1/memory/1956-132-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/1956-190-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1640-192-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/1640-203-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/1640-206-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/1640-209-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/1640-212-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/1640-215-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/1640-218-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/1640-221-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/1640-224-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/1640-227-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/1640-230-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/1640-233-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/1640-236-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3068 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 1640 csrss.exe 4952 injector.exe 3460 windefender.exe 4900 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral1/memory/3460-197-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4900-199-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3460-201-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4900-204-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4900-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\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.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 6 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription 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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
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.
Processes:
f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe -
Drops file in Windows directory 4 IoCs
Processes:
csrss.exef306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exedescription 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 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe File created C:\Windows\rss\csrss.exe f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 2932 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 3540 powershell.exe 464 powershell.exe 4468 powershell.exe 3628 powershell.exe 3544 powershell.exe 4776 powershell.exe 2172 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 912 schtasks.exe 1780 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exewindefender.exepowershell.exef306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-231 = "Hawaiian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-501 = "Nepal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates 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,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight 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" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-191 = "Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.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\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2571 = "Turks and Caicos Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.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\2a\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1662 = "Bahia Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exef306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exepowershell.exef306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4468 powershell.exe 4468 powershell.exe 1956 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 1956 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 3628 powershell.exe 3628 powershell.exe 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe 4776 powershell.exe 4776 powershell.exe 4776 powershell.exe 2172 powershell.exe 2172 powershell.exe 2172 powershell.exe 3540 powershell.exe 3540 powershell.exe 464 powershell.exe 464 powershell.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 1640 csrss.exe 1640 csrss.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 1640 csrss.exe 1640 csrss.exe 4952 injector.exe 4952 injector.exe 1640 csrss.exe 1640 csrss.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe 4952 injector.exe -
Suspicious use of AdjustPrivilegeToken 11 IoCs
Processes:
powershell.exef306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 4468 powershell.exe Token: SeDebugPrivilege 1956 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Token: SeImpersonatePrivilege 1956 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe Token: SeDebugPrivilege 3628 powershell.exe Token: SeDebugPrivilege 4776 powershell.exe Token: SeDebugPrivilege 2172 powershell.exe Token: SeDebugPrivilege 3540 powershell.exe Token: SeDebugPrivilege 464 powershell.exe Token: SeSystemEnvironmentPrivilege 1640 csrss.exe Token: SeSecurityPrivilege 2932 sc.exe Token: SeSecurityPrivilege 2932 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exef306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 1956 wrote to memory of 4468 1956 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 1956 wrote to memory of 4468 1956 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 1956 wrote to memory of 4468 1956 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4752 wrote to memory of 3628 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4752 wrote to memory of 3628 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4752 wrote to memory of 3628 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4752 wrote to memory of 760 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe cmd.exe PID 4752 wrote to memory of 760 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe cmd.exe PID 760 wrote to memory of 3068 760 cmd.exe netsh.exe PID 760 wrote to memory of 3068 760 cmd.exe netsh.exe PID 4752 wrote to memory of 3544 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4752 wrote to memory of 3544 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4752 wrote to memory of 3544 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4752 wrote to memory of 4776 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4752 wrote to memory of 4776 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4752 wrote to memory of 4776 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe powershell.exe PID 4752 wrote to memory of 1640 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe csrss.exe PID 4752 wrote to memory of 1640 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe csrss.exe PID 4752 wrote to memory of 1640 4752 f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe csrss.exe PID 1640 wrote to memory of 2172 1640 csrss.exe powershell.exe PID 1640 wrote to memory of 2172 1640 csrss.exe powershell.exe PID 1640 wrote to memory of 2172 1640 csrss.exe powershell.exe PID 1640 wrote to memory of 3540 1640 csrss.exe powershell.exe PID 1640 wrote to memory of 3540 1640 csrss.exe powershell.exe PID 1640 wrote to memory of 3540 1640 csrss.exe powershell.exe PID 1640 wrote to memory of 464 1640 csrss.exe powershell.exe PID 1640 wrote to memory of 464 1640 csrss.exe powershell.exe PID 1640 wrote to memory of 464 1640 csrss.exe powershell.exe PID 1640 wrote to memory of 4952 1640 csrss.exe injector.exe PID 1640 wrote to memory of 4952 1640 csrss.exe injector.exe PID 3460 wrote to memory of 2860 3460 windefender.exe cmd.exe PID 3460 wrote to memory of 2860 3460 windefender.exe cmd.exe PID 3460 wrote to memory of 2860 3460 windefender.exe cmd.exe PID 2860 wrote to memory of 2932 2860 cmd.exe sc.exe PID 2860 wrote to memory of 2932 2860 cmd.exe sc.exe PID 2860 wrote to memory of 2932 2860 cmd.exe sc.exe -
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\f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe"C:\Users\Admin\AppData\Local\Temp\f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1956 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4468 -
C:\Users\Admin\AppData\Local\Temp\f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.exe"C:\Users\Admin\AppData\Local\Temp\f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed.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:4752 -
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:3628 -
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:760 -
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:3068 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
PID:3544 -
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:4776 -
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:1640 -
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:2172 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:912 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1276
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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:3540 -
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:464 -
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:4952 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:1780 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3460 -
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:2860 -
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:2932
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4900
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ad9fa03764446746fa8c019ca5fb631d
SHA11b08747277fd84d3985fba5f56336ea30d956956
SHA256deaa345055f9e65dc451df0b4173fb4a4a9569ed333daf9b2eb780a1de737d3b
SHA512fccbf78eee3f633eb468b5ec202d58bcd04cba88cecf7247a9125463b98b3f24dca866cd2292add20d826f1257e670cc192b2068725bf0321fb79e36a93ce667
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50d9bf76c5eb8005e74854b014ceeddf8
SHA14c2e51c00158c47b82b6adeb06815d3bc0b9cc2c
SHA2569c9dabb3aae5a9ca24e69329c7d2546d91f4d399635c09f3c2066c99f9bcd432
SHA512c65d278e91ec043d9380261948ad7e5cd191af2ade711f44ceee4a8095539648678e5f59c600329d2b732b33a74efd301273e596499681fd43ca6dc74980eb20
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50040ae355c24c15ca2bf7c40f2808738
SHA1848d806f3ae38d66f39df450c6cda07ed8d6561e
SHA2569bf887b782cbf789cbc7f2fd9723c97f87631b1e64d095d36551ee81159da4f4
SHA51209fa34a990bae6e3ca85f9045f9586ef6018782ea98d1ab3f8731c1182b7c1df819b342f6d9487deaaf8624a6fb42033a525c1b035110718201fe653b7883241
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d329c57f54e4773a3e9f4307d266713d
SHA1d14f8383d1dcce3eedc5a3d0cd5d34893938611c
SHA2567b8519b0a8414459fcad4e057cea48da2e0473e07526dc461ad95424cbda9fea
SHA512435981882f88bc7ddf48fedb104d1db9a8a36b1af6a9c60122b7e81793ab054b76a29389fc74ac03e20921fcc7be9ba29110e62be6476c951e9e54c98971965f
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Filesize
4.1MB
MD55fe91888334e7f87e9fc44d33eaf9be0
SHA1cc472952110df8fc1a27f22f6d1ad3a073dfb568
SHA256f306f8ee98f47d3c97f01fc00b733bf2bcef4289930d4385e0ee18a311c646ed
SHA51252bd3104f5916e0fbba078278e46af0c9553f2d49fc6e09702c9f28d1c6274723a44fc77a37de4a998a34ecb3859127fe1506ef5de5aadaf8b6779d3a93ef933
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec