Analysis
-
max time kernel
302s -
max time network
292s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
04-04-2024 22:24
Static task
static1
Behavioral task
behavioral1
Sample
27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe
Resource
win7-20240215-en
General
-
Target
27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe
-
Size
4.2MB
-
MD5
fe81f2e00be93b675695c5f3c52a5e1f
-
SHA1
cac24ac238c493507775a8b773eebd6a4f61fd3d
-
SHA256
27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb
-
SHA512
288e5bd2565037a3554bf9135476604f531084869bfed73a6acb8b87259d9ef84143652d3915fefb485686a7511c3b0f9b694435f28dc3d17db5b216521eb348
-
SSDEEP
98304:jVQJ2ZY4uiKZg04mgLnQ7YSzOAwl4UEW+z25MLAPf/hkNBhqZmC:CJ9mKGLQvKZzgNLQHSNBhqZX
Malware Config
Signatures
-
Glupteba payload 35 IoCs
resource yara_rule behavioral2/memory/4916-2-0x00000000052E0000-0x0000000005BCB000-memory.dmp family_glupteba behavioral2/memory/4916-3-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/4916-4-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/4916-77-0x00000000052E0000-0x0000000005BCB000-memory.dmp family_glupteba behavioral2/memory/4916-262-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/4916-304-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/4424-307-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/4424-457-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/4424-587-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/4424-698-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/4424-1053-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1056-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1266-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1441-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1773-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1806-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1815-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1817-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1819-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1821-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1823-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1825-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1827-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1829-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1831-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1833-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1835-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1837-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1839-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1841-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1843-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1845-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1847-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1849-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba behavioral2/memory/832-1851-0x0000000000400000-0x0000000003127000-memory.dmp family_glupteba -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe = "0" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1332 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 832 csrss.exe 2732 injector.exe 4244 windefender.exe 4220 windefender.exe -
resource yara_rule behavioral2/files/0x000800000001ac0b-1809.dat upx behavioral2/memory/4244-1814-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4220-1816-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4220-1822-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe = "0" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-81807878-2351072935-4259904108-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (str) \REGISTRY\USER\S-1-5-21-81807878-2351072935-4259904108-1000\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.
-
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 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.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe File created C:\Windows\rss\csrss.exe 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4948 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3908 schtasks.exe 4768 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\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\1a\52C64B7E\@tzres.dll,-722 = "Central Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs 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\1a\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-962 = "Paraguay Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-741 = "New Zealand Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.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\1a\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.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\1a\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-651 = "AUS Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs 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\1a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-532 = "Sri Lanka Standard Time" windefender.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-191 = "Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4404 powershell.exe 4404 powershell.exe 4404 powershell.exe 4916 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 4916 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 5076 powershell.exe 5076 powershell.exe 5076 powershell.exe 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 3144 powershell.exe 3144 powershell.exe 3144 powershell.exe 796 powershell.exe 796 powershell.exe 796 powershell.exe 5084 powershell.exe 5084 powershell.exe 5084 powershell.exe 1084 powershell.exe 1084 powershell.exe 1084 powershell.exe 3368 powershell.exe 3368 powershell.exe 3368 powershell.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe 832 csrss.exe 832 csrss.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe 832 csrss.exe 832 csrss.exe 2732 injector.exe 2732 injector.exe 832 csrss.exe 832 csrss.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe 2732 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4404 powershell.exe Token: SeDebugPrivilege 4916 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Token: SeImpersonatePrivilege 4916 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe Token: SeDebugPrivilege 5076 powershell.exe Token: SeDebugPrivilege 3144 powershell.exe Token: SeDebugPrivilege 796 powershell.exe Token: SeDebugPrivilege 5084 powershell.exe Token: SeDebugPrivilege 1084 powershell.exe Token: SeDebugPrivilege 3368 powershell.exe Token: SeSystemEnvironmentPrivilege 832 csrss.exe Token: SeSecurityPrivilege 4948 sc.exe Token: SeSecurityPrivilege 4948 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4916 wrote to memory of 4404 4916 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 73 PID 4916 wrote to memory of 4404 4916 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 73 PID 4916 wrote to memory of 4404 4916 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 73 PID 4424 wrote to memory of 5076 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 78 PID 4424 wrote to memory of 5076 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 78 PID 4424 wrote to memory of 5076 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 78 PID 4424 wrote to memory of 4076 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 80 PID 4424 wrote to memory of 4076 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 80 PID 4076 wrote to memory of 1332 4076 cmd.exe 82 PID 4076 wrote to memory of 1332 4076 cmd.exe 82 PID 4424 wrote to memory of 3144 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 83 PID 4424 wrote to memory of 3144 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 83 PID 4424 wrote to memory of 3144 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 83 PID 4424 wrote to memory of 796 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 85 PID 4424 wrote to memory of 796 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 85 PID 4424 wrote to memory of 796 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 85 PID 4424 wrote to memory of 832 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 87 PID 4424 wrote to memory of 832 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 87 PID 4424 wrote to memory of 832 4424 27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe 87 PID 832 wrote to memory of 5084 832 csrss.exe 88 PID 832 wrote to memory of 5084 832 csrss.exe 88 PID 832 wrote to memory of 5084 832 csrss.exe 88 PID 832 wrote to memory of 1084 832 csrss.exe 95 PID 832 wrote to memory of 1084 832 csrss.exe 95 PID 832 wrote to memory of 1084 832 csrss.exe 95 PID 832 wrote to memory of 3368 832 csrss.exe 97 PID 832 wrote to memory of 3368 832 csrss.exe 97 PID 832 wrote to memory of 3368 832 csrss.exe 97 PID 832 wrote to memory of 2732 832 csrss.exe 99 PID 832 wrote to memory of 2732 832 csrss.exe 99 PID 4244 wrote to memory of 4556 4244 windefender.exe 106 PID 4244 wrote to memory of 4556 4244 windefender.exe 106 PID 4244 wrote to memory of 4556 4244 windefender.exe 106 PID 4556 wrote to memory of 4948 4556 cmd.exe 107 PID 4556 wrote to memory of 4948 4556 cmd.exe 107 PID 4556 wrote to memory of 4948 4556 cmd.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
-
C:\Users\Admin\AppData\Local\Temp\27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe"C:\Users\Admin\AppData\Local\Temp\27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4916 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4404
-
-
C:\Users\Admin\AppData\Local\Temp\27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.exe"C:\Users\Admin\AppData\Local\Temp\27f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb.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:4424 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5076
-
-
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:4076 -
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:1332
-
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3144
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:796
-
-
C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:832 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5084
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3908
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4472
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1084
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3368
-
-
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:2732
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4768
-
-
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4244 -
C:\Windows\SysWOW64\cmd.execmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)5⤵
- Suspicious use of WriteProcessMemory
PID:4556 -
C:\Windows\SysWOW64\sc.exesc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)6⤵
- Launches sc.exe
- Suspicious use of AdjustPrivilegeToken
PID:4948
-
-
-
-
-
-
C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4220
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
Loading Replay Monitor...
Downloads
-
Filesize
1B
MD5c4ca4238a0b923820dcc509a6f75849b
SHA1356a192b7913b04c54574d18c28d46e6395428ab
SHA2566b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
SHA5124dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
-
Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5db01a2c1c7e70b2b038edf8ad5ad9826
SHA1540217c647a73bad8d8a79e3a0f3998b5abd199b
SHA256413da361d77055dae7007f82b58b366c8783aa72e0b8fbe41519b940c253b38d
SHA512c76ff57fcee5cdf9fdf3116d4e1dc0cf106867bf19ab474b763e242acf5dca9a7509cb837c35e130c3e056636b4e8a4e135512a978bcd3dd641e20f5bf76c3d6
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD51982226f9cb04b2e2c95eb3917a59e38
SHA1f3248965f89f81514728ed9791f0c11032b80201
SHA256c71ed5f0cb2c2bb56c461a2e4beff7bac976c895beccce02c822f40c5daa5691
SHA512395d22c3a09a5b1d1afcc31dc7d1f9fe651352c6d55f65d9e94a60bf46afc176b1337f0aa47f2a4ffbfb7e282e146415284b82851c9df682f9f4d9249ebfcdb6
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD56c62132c71df631895da5472acbae165
SHA110ebfb234c39f59947cedb8cd6a1f62f457ff52c
SHA256c444a67106c753560799a45ac7d03137bea6fdedaf8217799e2ecaa543b2aeb0
SHA512c11808c3a27f49e550696a66d1fe8a93640695153b11615ade81f7880c9809b51a04f73978ee46ca0f90fcdbf2fb1ffe5d3b5bf394a48b0e86b046db418da70b
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD5d290bd3a4671c2d6dd021d2692c30602
SHA1aeffdc520ebffb2a7ed6eb1eb29254166c4bac30
SHA256bf296c74de6e007904be74de4a80e1f5a9c72976812c63e8dcb784ea80caa1c4
SHA5123c4ee5d0d5844cb6ae63244b975cc089a15a316d592b54b33ef6ef61db69270cffa5bf0998370f55108d6652f56b94d49de5971012e5fc50928a57f06cc387ce
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD51ffcb2482758ace2be1b30b030ab89fa
SHA13e0f17ee71dfd7b4d48dc3aa14e9873a7aa33928
SHA256e4db7bc9d67c835978f81294da075daefc51438429deef4738758d337155526c
SHA51225dd6a6e9cb1997910eb65de392291b49d47f1fb72a740c761c1b283de67ad27c72081d30d83012d64198d46fcb5638d176cfc0e4bccc7192825f913c4207b49
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD547302104376d8c778c0c08b2d9f3d272
SHA10e40f20256e8cde73295dc6700a3b4eba2fc8d5a
SHA2565f59453fd51ad9f5eaff29b7539593499cce51a30da495d45194f2dccfd6ddbc
SHA51233096691ea904a316fbe68dd16411fe6cf54056f726636401d42dc593af6319cbc60ea8ec1824f0e26880f7d347eb6612e4c86f83b0c703f7fc058817ea2009d
-
Filesize
4.2MB
MD5fe81f2e00be93b675695c5f3c52a5e1f
SHA1cac24ac238c493507775a8b773eebd6a4f61fd3d
SHA25627f5460a81fdbb13946aeaf3c66fcbdf3c5ae8355ba136e18d6e5d7525290bfb
SHA512288e5bd2565037a3554bf9135476604f531084869bfed73a6acb8b87259d9ef84143652d3915fefb485686a7511c3b0f9b694435f28dc3d17db5b216521eb348
-
Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec