Analysis
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max time kernel
300s -
max time network
300s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
16-05-2024 23:53
Static task
static1
Behavioral task
behavioral1
Sample
b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe
Resource
win7-20240419-en
General
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Target
b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe
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Size
4.1MB
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MD5
d75897ddbf091c62c357d96c3f67989e
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SHA1
2c32698973d85d198af2d07447986112cb8914c9
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SHA256
b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37
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SHA512
797e8607cba3cc7cdbc82d76371dffae6e3e430027311e383e982a594957d02d598d91b45bd0ee7896dfd68d7479f14bfb67939354e310fb1b40fb7fb585330e
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SSDEEP
49152:HospGR4ZolZaZUgoS4rMfecNeBcQIzxFATq3fcLxV1P8Mw6S3XtgHZvnGwOI/8m+:HospGR9o2+8co3zwcO+D6RXmXwT/p
Malware Config
Signatures
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Glupteba payload 31 IoCs
resource yara_rule behavioral2/memory/312-2-0x0000000004A30000-0x000000000531B000-memory.dmp family_glupteba behavioral2/memory/312-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/312-151-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/312-301-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/312-302-0x0000000004A30000-0x000000000531B000-memory.dmp family_glupteba behavioral2/memory/312-300-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4248-575-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4248-1030-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1277-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1763-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1764-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1765-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1766-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1767-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1768-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1769-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1770-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1771-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1772-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1773-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1774-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1775-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1776-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1777-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1778-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1779-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1780-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1781-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1782-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1783-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/4640-1784-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe = "0" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4828 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 4640 csrss.exe 4076 injector.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe = "0" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1739856679-3467441365-73334005-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\S-1-5-21-1739856679-3467441365-73334005-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe File opened for modification C:\Windows\rss b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe -
pid Process 3544 powershell.exe 1920 powershell.exe 4776 powershell.exe 4744 powershell.exe 800 powershell.exe 4300 powershell.exe 3488 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1784 schtasks.exe 1880 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Key created \REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Control netsh.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.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\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.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\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\NetTrace netsh.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates 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\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3488 powershell.exe 3488 powershell.exe 3488 powershell.exe 312 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 312 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 3544 powershell.exe 3544 powershell.exe 3544 powershell.exe 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 1920 powershell.exe 1920 powershell.exe 1920 powershell.exe 4776 powershell.exe 4776 powershell.exe 4776 powershell.exe 4744 powershell.exe 4744 powershell.exe 4744 powershell.exe 800 powershell.exe 800 powershell.exe 800 powershell.exe 4300 powershell.exe 4300 powershell.exe 4300 powershell.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4640 csrss.exe 4640 csrss.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4640 csrss.exe 4640 csrss.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe 4076 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 3488 powershell.exe Token: SeDebugPrivilege 312 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Token: SeImpersonatePrivilege 312 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe Token: SeDebugPrivilege 3544 powershell.exe Token: SeDebugPrivilege 1920 powershell.exe Token: SeDebugPrivilege 4776 powershell.exe Token: SeDebugPrivilege 4744 powershell.exe Token: SeDebugPrivilege 800 powershell.exe Token: SeDebugPrivilege 4300 powershell.exe Token: SeSystemEnvironmentPrivilege 4640 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 312 wrote to memory of 3488 312 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 74 PID 312 wrote to memory of 3488 312 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 74 PID 312 wrote to memory of 3488 312 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 74 PID 4248 wrote to memory of 3544 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 79 PID 4248 wrote to memory of 3544 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 79 PID 4248 wrote to memory of 3544 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 79 PID 4248 wrote to memory of 2732 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 81 PID 4248 wrote to memory of 2732 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 81 PID 2732 wrote to memory of 4828 2732 cmd.exe 83 PID 2732 wrote to memory of 4828 2732 cmd.exe 83 PID 4248 wrote to memory of 1920 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 84 PID 4248 wrote to memory of 1920 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 84 PID 4248 wrote to memory of 1920 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 84 PID 4248 wrote to memory of 4776 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 86 PID 4248 wrote to memory of 4776 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 86 PID 4248 wrote to memory of 4776 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 86 PID 4248 wrote to memory of 4640 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 88 PID 4248 wrote to memory of 4640 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 88 PID 4248 wrote to memory of 4640 4248 b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe 88 PID 4640 wrote to memory of 4744 4640 csrss.exe 89 PID 4640 wrote to memory of 4744 4640 csrss.exe 89 PID 4640 wrote to memory of 4744 4640 csrss.exe 89 PID 4640 wrote to memory of 800 4640 csrss.exe 96 PID 4640 wrote to memory of 800 4640 csrss.exe 96 PID 4640 wrote to memory of 800 4640 csrss.exe 96 PID 4640 wrote to memory of 4300 4640 csrss.exe 98 PID 4640 wrote to memory of 4300 4640 csrss.exe 98 PID 4640 wrote to memory of 4300 4640 csrss.exe 98 PID 4640 wrote to memory of 4076 4640 csrss.exe 100 PID 4640 wrote to memory of 4076 4640 csrss.exe 100 -
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\b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe"C:\Users\Admin\AppData\Local\Temp\b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:312 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3488
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C:\Users\Admin\AppData\Local\Temp\b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe"C:\Users\Admin\AppData\Local\Temp\b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37.exe"2⤵
- Windows security bypass
- Windows security modification
- 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:4248 -
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:3544
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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:2732 -
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
- Modifies data under HKEY_USERS
PID:4828
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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:1920
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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:4776
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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:4640 -
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:4744
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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:1784
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4412
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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:800
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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:4300
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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:4076
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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:1880
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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
1B
MD5c4ca4238a0b923820dcc509a6f75849b
SHA1356a192b7913b04c54574d18c28d46e6395428ab
SHA2566b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
SHA5124dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
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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
MD51c19c16e21c97ed42d5beabc93391fc5
SHA18ad83f8e0b3acf8dfbbf87931e41f0d664c4df68
SHA2561bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05
SHA5127d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD522b51be74512d04c74c9edf06762fb55
SHA131b911f2c995bc7d109681d36180ff367f2e3365
SHA256e30b37572c007cbbbf43015cb9465554678c3a2fe35015e41b60f354ca1d3f95
SHA512bfc6f9f237cca43e9f167a5f9608bd2e5800a2a76dd5740b9532a4b82d8ef23024df3a83edd6d87e1ab5d820e2ebb6bcc3b618a5f05a1b0a39dbe34d097d127b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD58921bfa376637c93859884ff9879252d
SHA16d1b52902e49a0bf255c1fb2be3c42da6fa2109b
SHA25623202c214e4eabdd236da84434fffaa5d054cee6947d158a5d8d730a256d8a2f
SHA5127a7aa87638d2dbfea000ff0d724aaf8daefee4ba70310ec7e2c39f5ba9db3effae0da85dffac78f761733fec62a06175fe72d0f82697f7c623de57f566352212
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD5910bd1a6e844f0e23b16fd88ad6e643a
SHA191aba1f8a50c8ef42e3601291a13f421f56a58e3
SHA256c8a1919edfb6a33aaa3bc61e873a556321287f5291b18f898fb0cdc82d22d134
SHA512baabc2410e82f61ee4e0b084f22dd59d1689ea60b5972b5b9d42bed0c4fb1299c6272fc1b6320fbee4dd485f082e134c635d4f43969fd2c3d24e5316617e1bde
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD5e1f277ddd3e39236034cb2fd02d3c471
SHA12862e43fdb9b1c1bc076f6c1f222fac2b6c4f8a4
SHA256264cdbb24aeff581d8714932d01318854fd825982eaf3b1be58207792c8cd8cf
SHA5123755bd527c96db21a6650bfd8c58fdede8c9b311fe140e6e29850df78fc653ebe84e4ba0ccd6fb1e547cfa97f2cabdcf815ca4b6d15f214cd10d940a925cad13
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD5b7346abf3ec9af3693f19ef5302ef7ff
SHA12f45f64e08249588a6618ac55d7623b18f6ecb0a
SHA256eb78dd4af497429d8ff2e0813444ea72feeb5d9b26bc75cee5655fc8cf12a933
SHA51254c894ab2507d0542011677b51939e3a61ad9b35f79909af13dd72504b3cc052b7fcb15f01193744c17e1f719da3a128802286eaade87477b1831fc7b6686d64
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Filesize
4.1MB
MD5d75897ddbf091c62c357d96c3f67989e
SHA12c32698973d85d198af2d07447986112cb8914c9
SHA256b7c03e4d0ec815dd304aca6950e8f414f9ed9a790dfe3d640eaf2732d7e89f37
SHA512797e8607cba3cc7cdbc82d76371dffae6e3e430027311e383e982a594957d02d598d91b45bd0ee7896dfd68d7479f14bfb67939354e310fb1b40fb7fb585330e