Analysis
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max time kernel
150s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-05-2024 12:51
Static task
static1
Behavioral task
behavioral1
Sample
4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe
Resource
win10v2004-20240508-en
General
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Target
4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe
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Size
4.1MB
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MD5
20c934c8394713e7ab2c4722294d7b53
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SHA1
632491c97b1fc56532dd1d3bb751c1e82be59d3f
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SHA256
4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb
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SHA512
f96425e6f27c35433f1afd1feb6a67befe0b834242a0e9de7c9cad23b58b9050e0385c4f6364ad4b6c1ced7c95661e96fa246c2340bc2a218284755eb893e2f2
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SSDEEP
98304:PBVs1p4PpCxl89qkqVHLjfQjDTn2r+NbN:5a1p4P0l8MfVLMTrN
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/2332-2-0x0000000004C90000-0x000000000557B000-memory.dmp family_glupteba behavioral2/memory/2332-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2332-23-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2332-53-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2332-54-0x0000000004C90000-0x000000000557B000-memory.dmp family_glupteba behavioral2/memory/2332-64-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-78-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/4660-129-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/4896-140-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/4896-201-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/4896-209-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/4896-221-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/4896-225-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/4896-229-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/4896-233-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/4896-237-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/4896-241-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/4896-245-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/4896-249-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3712 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4896 csrss.exe 4868 injector.exe 3900 windefender.exe 1824 windefender.exe -
resource yara_rule behavioral2/files/0x001a00000002ab42-212.dat upx behavioral2/memory/3900-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1824-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3900-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1824-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1824-231-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe 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 -
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 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe File created C:\Windows\rss\csrss.exe 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.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 3808 sc.exe -
pid Process 4504 powershell.exe 2000 powershell.exe 5024 powershell.exe 5020 powershell.exe 5032 powershell.exe 4208 powershell.exe 1384 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 3508 schtasks.exe 4580 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.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\CTLs 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\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-691 = "Tasmania Daylight Time" windefender.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\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.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\@tzres.dll,-672 = "AUS Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.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\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\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\@tzres.dll,-442 = "Arabian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-501 = "Nepal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2452 = "Saint Pierre Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time" windefender.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\2a\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4208 powershell.exe 4208 powershell.exe 2332 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 2332 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 1384 powershell.exe 1384 powershell.exe 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 4504 powershell.exe 4504 powershell.exe 2000 powershell.exe 2000 powershell.exe 5024 powershell.exe 5024 powershell.exe 5020 powershell.exe 5020 powershell.exe 5032 powershell.exe 5032 powershell.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4896 csrss.exe 4896 csrss.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4896 csrss.exe 4896 csrss.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4896 csrss.exe 4896 csrss.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4208 powershell.exe Token: SeDebugPrivilege 2332 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe Token: SeImpersonatePrivilege 2332 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe Token: SeDebugPrivilege 1384 powershell.exe Token: SeDebugPrivilege 4504 powershell.exe Token: SeDebugPrivilege 2000 powershell.exe Token: SeDebugPrivilege 5024 powershell.exe Token: SeDebugPrivilege 5020 powershell.exe Token: SeDebugPrivilege 5032 powershell.exe Token: SeSystemEnvironmentPrivilege 4896 csrss.exe Token: SeSecurityPrivilege 3808 sc.exe Token: SeSecurityPrivilege 3808 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2332 wrote to memory of 4208 2332 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 82 PID 2332 wrote to memory of 4208 2332 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 82 PID 2332 wrote to memory of 4208 2332 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 82 PID 4660 wrote to memory of 1384 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 87 PID 4660 wrote to memory of 1384 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 87 PID 4660 wrote to memory of 1384 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 87 PID 4660 wrote to memory of 3744 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 89 PID 4660 wrote to memory of 3744 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 89 PID 3744 wrote to memory of 3712 3744 cmd.exe 91 PID 3744 wrote to memory of 3712 3744 cmd.exe 91 PID 4660 wrote to memory of 4504 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 92 PID 4660 wrote to memory of 4504 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 92 PID 4660 wrote to memory of 4504 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 92 PID 4660 wrote to memory of 2000 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 94 PID 4660 wrote to memory of 2000 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 94 PID 4660 wrote to memory of 2000 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 94 PID 4660 wrote to memory of 4896 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 96 PID 4660 wrote to memory of 4896 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 96 PID 4660 wrote to memory of 4896 4660 4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe 96 PID 4896 wrote to memory of 5024 4896 csrss.exe 97 PID 4896 wrote to memory of 5024 4896 csrss.exe 97 PID 4896 wrote to memory of 5024 4896 csrss.exe 97 PID 4896 wrote to memory of 5020 4896 csrss.exe 102 PID 4896 wrote to memory of 5020 4896 csrss.exe 102 PID 4896 wrote to memory of 5020 4896 csrss.exe 102 PID 4896 wrote to memory of 5032 4896 csrss.exe 105 PID 4896 wrote to memory of 5032 4896 csrss.exe 105 PID 4896 wrote to memory of 5032 4896 csrss.exe 105 PID 4896 wrote to memory of 4868 4896 csrss.exe 107 PID 4896 wrote to memory of 4868 4896 csrss.exe 107 PID 3900 wrote to memory of 1664 3900 windefender.exe 113 PID 3900 wrote to memory of 1664 3900 windefender.exe 113 PID 3900 wrote to memory of 1664 3900 windefender.exe 113 PID 1664 wrote to memory of 3808 1664 cmd.exe 114 PID 1664 wrote to memory of 3808 1664 cmd.exe 114 PID 1664 wrote to memory of 3808 1664 cmd.exe 114 -
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\4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe"C:\Users\Admin\AppData\Local\Temp\4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2332 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4208
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C:\Users\Admin\AppData\Local\Temp\4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.exe"C:\Users\Admin\AppData\Local\Temp\4565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb.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:4660 -
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:1384
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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:3744 -
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:3712
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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:4504
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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:2000
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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.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4896 -
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:5024
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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:3508
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4440
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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:5020
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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:5032
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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:4868
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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:4580
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3900 -
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:1664 -
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:3808
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1824
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52d55c642f3a997625fc3baa8d6e668ab
SHA1e14b4c37e8d8527177f973be8c81da448f15cf4a
SHA2563505619349a5ea422804c7769a84b7bc8eb4397af968922925f835f63d837559
SHA512a336f5414699352b229949d57bc1814fd4d579bb99fa32338e149be26526f5674b1ffd83c39a2dece6f1d85392075fdf1adb55418ab45782d1098d19d4ed2cb2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5393cd410da15c12cf9c859d49df83501
SHA12beb5b9e57be94edf1e105783de16c328a8ba3e5
SHA256b75f040cb43775da30aedb61e6082af57242d62f2ed8fa2a177f608dbc6cb84a
SHA5128e32facebde9185a2147f7d1745cf08a6e670ce5714d41078629634035de9e2fe403066a016e48092b52b217602a3361c7906a8ca30d886d5c727d89e266810e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50f7c1a2cbeb2f7505f57651a1c9ff476
SHA1796f1720144baa9534c14cd4d3a072f42abfbcb4
SHA2569ab4c91e24518307127b4991344f35dbb8c71e6894d99777b7753a174ec56cca
SHA512ab34014f1aa686d24d0ba01fab8718251457d065671c7bec5cc17499e3a111d47a77eaab165e1b7b58df5eb2e8e7ef64e346cf4e7277909b38f376b9bc88ce49
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5294aa89edd5ed1d8a23adcb459798f7a
SHA137b6ff197ca06d82d335941139475d1e1c6393d4
SHA256317ca8f0a9a144f02d1b6e6c1bbffded0e1084d5b60384779f002daac5d3e95b
SHA5121963976a943206e0195e7fb51d01060339c68c353ba7e33b655f3bbde42d0f14f7d15cb0c8fbb245fdaeeb10064e7db2dfd423af4c5eca6b3e9e6a169db2f3b2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5795b71d7403281b0248faaa77f7bcc1b
SHA19a6b7b190f19b6675b3f86ac6defa29ecdd86b25
SHA2569c3381ddd2daf48171a5f672c2d107b3d916103bb771140e7149b38af94f5653
SHA51228484c00886f5d5b9d8de11742fa5fe6c3658a101cbcfe6373d7b2f4a2bec36b76daec3cb9745b142a598ea99e1c07867d59896866b13571d260cce8dcef62b6
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Filesize
4.1MB
MD520c934c8394713e7ab2c4722294d7b53
SHA1632491c97b1fc56532dd1d3bb751c1e82be59d3f
SHA2564565a8c54b491a0579339f8f6a529afeb1f4ccd4b752f005929fca80435304bb
SHA512f96425e6f27c35433f1afd1feb6a67befe0b834242a0e9de7c9cad23b58b9050e0385c4f6364ad4b6c1ced7c95661e96fa246c2340bc2a218284755eb893e2f2
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec