Analysis
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max time kernel
150s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
20-05-2024 04:06
Static task
static1
Behavioral task
behavioral1
Sample
05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe
Resource
win10v2004-20240508-en
General
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Target
05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe
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Size
4.1MB
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MD5
838f1358940dbba9f4505d0c24bca4c7
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SHA1
c49efbe9a26a8b0865c5bad29a84794e5e4705f2
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SHA256
05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1
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SHA512
fd546b1d240fcfcea49f943b6ad7860d0714df6e1b1aba1bf1e2218461f02e6318b6817818d9233af41aef10a5b3106dadc2412cde8b6330ea325067b34ebea8
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SSDEEP
98304:eQAQcsa3GhfWYEvpb4LdECaqY+VYhFzXw/u5g9cAd9nz:eQAQcDPYxuCJe7X5ghfz
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/116-2-0x0000000004860000-0x000000000514B000-memory.dmp family_glupteba behavioral1/memory/116-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/116-92-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/1580-131-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/116-156-0x0000000004860000-0x000000000514B000-memory.dmp family_glupteba behavioral1/memory/116-185-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/396-214-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/396-216-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/396-218-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/396-220-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/396-222-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/396-224-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/396-226-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/396-228-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/396-230-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/396-232-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/396-234-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/396-236-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/396-238-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 3328 netsh.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid Process 396 csrss.exe 4404 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\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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Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
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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 7 IoCs
Processes:
powershell.exepowershell.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 opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe -
Drops file in Windows directory 2 IoCs
Processes:
05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exedescription ioc Process File opened for modification C:\Windows\rss 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe File created C:\Windows\rss\csrss.exe 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 1368 powershell.exe 4992 powershell.exe 3632 powershell.exe 3184 powershell.exe 960 powershell.exe 2380 powershell.exe 1080 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 4764 schtasks.exe 3776 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exepowershell.execsrss.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.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\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.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\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates 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\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exepowershell.exe05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 960 powershell.exe 960 powershell.exe 116 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 116 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 2380 powershell.exe 2380 powershell.exe 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 1080 powershell.exe 1080 powershell.exe 1368 powershell.exe 1368 powershell.exe 4992 powershell.exe 4992 powershell.exe 3632 powershell.exe 3632 powershell.exe 3184 powershell.exe 3184 powershell.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 396 csrss.exe 396 csrss.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 396 csrss.exe 396 csrss.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe 4404 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exe05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid Process Token: SeDebugPrivilege 960 powershell.exe Token: SeDebugPrivilege 116 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Token: SeImpersonatePrivilege 116 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe Token: SeDebugPrivilege 2380 powershell.exe Token: SeDebugPrivilege 1080 powershell.exe Token: SeDebugPrivilege 1368 powershell.exe Token: SeDebugPrivilege 4992 powershell.exe Token: SeDebugPrivilege 3632 powershell.exe Token: SeDebugPrivilege 3184 powershell.exe Token: SeSystemEnvironmentPrivilege 396 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.execmd.execsrss.exedescription pid Process procid_target PID 116 wrote to memory of 960 116 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 87 PID 116 wrote to memory of 960 116 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 87 PID 116 wrote to memory of 960 116 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 87 PID 1580 wrote to memory of 2380 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 96 PID 1580 wrote to memory of 2380 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 96 PID 1580 wrote to memory of 2380 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 96 PID 1580 wrote to memory of 4580 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 102 PID 1580 wrote to memory of 4580 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 102 PID 4580 wrote to memory of 3328 4580 cmd.exe 104 PID 4580 wrote to memory of 3328 4580 cmd.exe 104 PID 1580 wrote to memory of 1080 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 105 PID 1580 wrote to memory of 1080 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 105 PID 1580 wrote to memory of 1080 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 105 PID 1580 wrote to memory of 1368 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 108 PID 1580 wrote to memory of 1368 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 108 PID 1580 wrote to memory of 1368 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 108 PID 1580 wrote to memory of 396 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 110 PID 1580 wrote to memory of 396 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 110 PID 1580 wrote to memory of 396 1580 05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe 110 PID 396 wrote to memory of 4992 396 csrss.exe 111 PID 396 wrote to memory of 4992 396 csrss.exe 111 PID 396 wrote to memory of 4992 396 csrss.exe 111 PID 396 wrote to memory of 3632 396 csrss.exe 117 PID 396 wrote to memory of 3632 396 csrss.exe 117 PID 396 wrote to memory of 3632 396 csrss.exe 117 PID 396 wrote to memory of 3184 396 csrss.exe 119 PID 396 wrote to memory of 3184 396 csrss.exe 119 PID 396 wrote to memory of 3184 396 csrss.exe 119 PID 396 wrote to memory of 4404 396 csrss.exe 121 PID 396 wrote to memory of 4404 396 csrss.exe 121 -
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\05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe"C:\Users\Admin\AppData\Local\Temp\05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:116 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:960
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C:\Users\Admin\AppData\Local\Temp\05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe"C:\Users\Admin\AppData\Local\Temp\05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.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:1580 -
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:2380
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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:4580 -
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:3328
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1080
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1368
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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.
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:396 -
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:4992
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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:4764
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3564
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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:3632
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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:3184
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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:4404
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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:3776
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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
MD5cbaff6a56c8e1b96ff0ee2e4a04cd600
SHA1f570d05a7030cb6a3345bb60843d4478e2dcb9b7
SHA2568b6cfb8edce247515a4de15ea5c97488e2d6bd3af8c2068c87f60a5036ed143a
SHA51260a545f37fe21a40c1605dfa935f6b2d8cd93755c649d17dcfbf3b03182a6854e7a94aeca41459f7ba078892a181d4012657f1db081ae669dfd704975f8c60c9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD510eaf95f52be594dc3c29dc925c62c76
SHA1546fa52febea649424831d61a7dc1f741a8d0dd9
SHA256706f824cfcfbed32eb6b820ffd6c2e900c1f41f9a606cb020f683f58f6875d48
SHA5128517cb285b7ceb25c601e702438cbe66a4e4242ebc51e6e2581525dbffa4f2e3963b8de2432b82484cdd2a5e3b9307ee03e95298e421fedfcaaefbec95b5a6bb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bacb29394773b19e9ede0279ea103e42
SHA196db102b35952de53d64420b2a8edd1f583cc316
SHA256cd6a5b33549225bb05d15f34a24b52c2e2f20616e4a2d203f52cc2ed142ae75c
SHA5121347fd97cca234b22d29523470914117964af9b9d4fcbb8ddd2092a5110b9f63e00792804687d42fe60e34512cd9802507a7aeea5428f0cbf4698fef41871645
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5aa2ff378ebc995d94a6ec52e1c79fc82
SHA103fddd44052510b44daeb3c2eaed09e68bc73aeb
SHA256f379b528457f315fff417277870d6395f4eb57a4fcec90f486c71b0402618d0e
SHA5127cbb632f62e6c0ccf4246e80af979658e3673114525662005520337a35fa12717b4e93f841a0268372b0275ebf167cc210146942246a89d9a0acbfbadec2f7a3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52fa45931260359b67c9b122e776b2a2b
SHA1fbdbc71851e8abe53a38be08ba606dff90bfd565
SHA256c1e70a5c2359f943b8fc9fb9d67e2a7f49be38c1d9696016696820ef89139709
SHA5120a863c4e33bd88039562bd25cb8e13e8df3633693a592c38d33584b584eb427e99c4f639ba6f639baebc29be4a8aec807120e41ddd87c443d0da9539a0fea728
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Filesize
4.1MB
MD5838f1358940dbba9f4505d0c24bca4c7
SHA1c49efbe9a26a8b0865c5bad29a84794e5e4705f2
SHA25605f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1
SHA512fd546b1d240fcfcea49f943b6ad7860d0714df6e1b1aba1bf1e2218461f02e6318b6817818d9233af41aef10a5b3106dadc2412cde8b6330ea325067b34ebea8