Analysis
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max time kernel
149s -
max time network
148s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 20:38
Static task
static1
Behavioral task
behavioral1
Sample
b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe
Resource
win10v2004-20240426-en
General
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Target
b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe
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Size
4.1MB
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MD5
982a5a090ff439f08509d4e1f27262a3
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SHA1
5ac4e3f7d87fc63697f8f0d13d74194d1d3f985a
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SHA256
b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d
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SHA512
32f6d0fc930ddb7b366e52370762cd302f39d2d94220be8f9ae98bef55ee6b657665798cc65bb01c38ab12fc6f3cbb1862a5f1e2e3d23ee08df623eabc8d8a99
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SSDEEP
98304:77sgfTqZm7fywQIpjGUn+cmloZHued8miXbTsPufBvNx:7zgmDywQg+foZ8mw6SX
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/1688-2-0x0000000004A80000-0x000000000536B000-memory.dmp family_glupteba behavioral2/memory/1688-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1688-119-0x0000000004A80000-0x000000000536B000-memory.dmp family_glupteba behavioral2/memory/1688-117-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/5000-191-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1688-192-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2944-200-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2944-203-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2944-206-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2944-209-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2944-212-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2944-215-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2944-218-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2944-221-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2944-224-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2944-227-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2944-230-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2944-233-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2944-236-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 1564 netsh.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid Process 2944 csrss.exe 2792 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2994005945-4089876968-1367784197-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2994005945-4089876968-1367784197-1000\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 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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe -
Drops file in Windows directory 2 IoCs
Processes:
b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exedescription ioc Process File opened for modification C:\Windows\rss b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe File created C:\Windows\rss\csrss.exe b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 1348 powershell.exe 3148 powershell.exe 2068 powershell.exe 5084 powershell.exe 1700 powershell.exe 2288 powershell.exe 2464 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 4612 schtasks.exe 4640 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exepowershell.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,-2572 = "Turks and Caicos Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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,-351 = "FLE Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 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\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.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,-71 = "Newfoundland Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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,-1661 = "Bahia Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeb5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exepowershell.exeb5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 2464 powershell.exe 2464 powershell.exe 1688 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 1688 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 1348 powershell.exe 1348 powershell.exe 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 3148 powershell.exe 3148 powershell.exe 2068 powershell.exe 2068 powershell.exe 5084 powershell.exe 5084 powershell.exe 1700 powershell.exe 1700 powershell.exe 2288 powershell.exe 2288 powershell.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2944 csrss.exe 2944 csrss.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2944 csrss.exe 2944 csrss.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe 2792 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exeb5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid Process Token: SeDebugPrivilege 2464 powershell.exe Token: SeDebugPrivilege 1688 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Token: SeImpersonatePrivilege 1688 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe Token: SeDebugPrivilege 1348 powershell.exe Token: SeDebugPrivilege 3148 powershell.exe Token: SeDebugPrivilege 2068 powershell.exe Token: SeDebugPrivilege 5084 powershell.exe Token: SeDebugPrivilege 1700 powershell.exe Token: SeDebugPrivilege 2288 powershell.exe Token: SeSystemEnvironmentPrivilege 2944 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exeb5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.execmd.execsrss.exedescription pid Process procid_target PID 1688 wrote to memory of 2464 1688 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 82 PID 1688 wrote to memory of 2464 1688 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 82 PID 1688 wrote to memory of 2464 1688 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 82 PID 5000 wrote to memory of 1348 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 87 PID 5000 wrote to memory of 1348 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 87 PID 5000 wrote to memory of 1348 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 87 PID 5000 wrote to memory of 1400 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 89 PID 5000 wrote to memory of 1400 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 89 PID 1400 wrote to memory of 1564 1400 cmd.exe 91 PID 1400 wrote to memory of 1564 1400 cmd.exe 91 PID 5000 wrote to memory of 3148 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 92 PID 5000 wrote to memory of 3148 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 92 PID 5000 wrote to memory of 3148 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 92 PID 5000 wrote to memory of 2068 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 94 PID 5000 wrote to memory of 2068 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 94 PID 5000 wrote to memory of 2068 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 94 PID 5000 wrote to memory of 2944 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 96 PID 5000 wrote to memory of 2944 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 96 PID 5000 wrote to memory of 2944 5000 b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe 96 PID 2944 wrote to memory of 5084 2944 csrss.exe 97 PID 2944 wrote to memory of 5084 2944 csrss.exe 97 PID 2944 wrote to memory of 5084 2944 csrss.exe 97 PID 2944 wrote to memory of 1700 2944 csrss.exe 103 PID 2944 wrote to memory of 1700 2944 csrss.exe 103 PID 2944 wrote to memory of 1700 2944 csrss.exe 103 PID 2944 wrote to memory of 2288 2944 csrss.exe 105 PID 2944 wrote to memory of 2288 2944 csrss.exe 105 PID 2944 wrote to memory of 2288 2944 csrss.exe 105 PID 2944 wrote to memory of 2792 2944 csrss.exe 107 PID 2944 wrote to memory of 2792 2944 csrss.exe 107 -
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\b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe"C:\Users\Admin\AppData\Local\Temp\b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1688 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2464
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C:\Users\Admin\AppData\Local\Temp\b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.exe"C:\Users\Admin\AppData\Local\Temp\b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d.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:5000 -
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:1348
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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:1400 -
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:1564
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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:3148
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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:2068
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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.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2944 -
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:5084
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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:4612
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2120
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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:1700
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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:2288
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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:2792
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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:4640
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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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fb131c23f0a40f462bc04f24fcf9b84a
SHA19ca6077afe757f7441f0dddb3d8f94cdac7097ae
SHA256a55943d21c251ae5299f57e491390fa444d5cc5f697f635ed8ef15e6257ffcea
SHA512de0e66471f25f31ef824bbe97cfafd792b94ea1a9fd0fe4f46bf349c88704abf672293723e6787f449b8a63a8f59fe786e740e61a41f1838d378f18d4ffbd3ec
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54c86f5980a7d55aefcb252579dc21786
SHA1d21eca8275bc5070bdab900b1d8b73e7ba79c893
SHA2561b0ca1ad086d4028b489ad7bfde2581e70d1df0036dcd60042e79bbefce7e6e2
SHA512848aeb6ed9091e1654cf197de57d09852b7091db73254d4afc3e5bfe983ae496c0547f738788bd9b13c8904d39abd4bc0f08c96efdedd7c7498af13594222360
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56617f9adec7378bfedb98a9f07631d6e
SHA1b08863fe4203a109765f0c8fe0d25de66a9bcac7
SHA256fc66c8db95598ef79864b123f1d6854b2b384a4e8b41292df36a392810481166
SHA512dfa4acd09704a477b76696f65db6d02f22cb99fd76f7c6d12bdfde4b75a4b6974c2fcfb1294c7a0e36785137158f45810a47f3520596ccbad6ef97f5c1cdc84e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a490152d4d4b3ac51d31cb81dc68d398
SHA18361a497e677f8a2db371c64ba4af7cf5b80fcb2
SHA256614a1abc05ae81e13623c50e046134e231a222d3b09b002f7b76a51a0a1fc60a
SHA5124608e4cbbf8f391933512e0fa5ab69858c3030af3942573c3144a884d8ababac228aa50fc58b04053cb796156496fd76f342489c1cdb939057a5e4330ce3cc91
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD575096ec211ecc4b9e785ed96ecd0a092
SHA11bb9d9ced3ed4e789309dad13f74ee25fc828cac
SHA256c22f93b386ffb52a15baf20d456639348c45242e05cfc269defe0d8bb395b193
SHA5128f913f971a78ed34bbd24578d369617987a651330d07b0ded165c53202045c23a00d1e624de58800518844c34b98293abe435b17eed2ec6f5f7d79b2e930f503
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Filesize
4.1MB
MD5982a5a090ff439f08509d4e1f27262a3
SHA15ac4e3f7d87fc63697f8f0d13d74194d1d3f985a
SHA256b5496bcbd61573b6012b147118d0b0516c45fbdc32aa00f6bba4967d1ab23c2d
SHA51232f6d0fc930ddb7b366e52370762cd302f39d2d94220be8f9ae98bef55ee6b657665798cc65bb01c38ab12fc6f3cbb1862a5f1e2e3d23ee08df623eabc8d8a99