Analysis
-
max time kernel
150s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 14:19
Static task
static1
Behavioral task
behavioral1
Sample
3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe
Resource
win10v2004-20240426-en
General
-
Target
3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe
-
Size
4.1MB
-
MD5
3c600d96b15616b81003faf9eeb2d9fd
-
SHA1
49d41dc0f76caa32a88d322d3d83848744190083
-
SHA256
3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520
-
SHA512
7e7adb53ff07ce21d3735d5fa7d2467da5e333f6fbfdf97f2529505b510cdf48d8acc084ccb148d80392aa3445e606c3578936c849c161b24b29a64b42771718
-
SSDEEP
98304:wuOdAWE/bfbxbxBimum48oJjLrUZhWcgWy75MTps2CObMUZCzBS0:wuOpIddBi3V8Ojm7gWylM939Ct
Malware Config
Signatures
-
Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/232-2-0x0000000004980000-0x000000000526B000-memory.dmp family_glupteba behavioral2/memory/232-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/232-96-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/232-118-0x0000000004980000-0x000000000526B000-memory.dmp family_glupteba behavioral2/memory/4312-123-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/232-145-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1788-199-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1788-210-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1788-212-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1788-216-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1788-219-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1788-222-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1788-224-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1788-228-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1788-231-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1788-234-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1788-236-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1788-240-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1788-243-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2032 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 1788 csrss.exe 1440 injector.exe 1376 windefender.exe 4776 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x001a00000002ab42-203.dat upx behavioral2/memory/1376-204-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4776-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1376-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4776-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4776-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.execsrss.exedescription 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\"" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.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\"" 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.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe -
Drops file in Windows directory 4 IoCs
Processes:
3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe File created C:\Windows\rss\csrss.exe 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.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.
Processes:
sc.exepid Process 4232 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4844 powershell.exe 4896 powershell.exe 1996 powershell.exe 816 powershell.exe 1280 powershell.exe 3652 powershell.exe 2088 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid Process 2304 schtasks.exe 1348 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exewindefender.exe3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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\2a\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.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,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2771 = "Omsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs 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,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-261 = "GMT Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.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,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-792 = "SA Western 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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exepowershell.exe3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4896 powershell.exe 4896 powershell.exe 232 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 232 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 1996 powershell.exe 1996 powershell.exe 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 816 powershell.exe 816 powershell.exe 1280 powershell.exe 1280 powershell.exe 3652 powershell.exe 3652 powershell.exe 2088 powershell.exe 2088 powershell.exe 4844 powershell.exe 4844 powershell.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1788 csrss.exe 1788 csrss.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1788 csrss.exe 1788 csrss.exe 1440 injector.exe 1440 injector.exe 1788 csrss.exe 1788 csrss.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe 1440 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4896 powershell.exe Token: SeDebugPrivilege 232 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Token: SeImpersonatePrivilege 232 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe Token: SeDebugPrivilege 1996 powershell.exe Token: SeDebugPrivilege 816 powershell.exe Token: SeDebugPrivilege 1280 powershell.exe Token: SeDebugPrivilege 3652 powershell.exe Token: SeDebugPrivilege 2088 powershell.exe Token: SeDebugPrivilege 4844 powershell.exe Token: SeSystemEnvironmentPrivilege 1788 csrss.exe Token: SeSecurityPrivilege 4232 sc.exe Token: SeSecurityPrivilege 4232 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 232 wrote to memory of 4896 232 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 80 PID 232 wrote to memory of 4896 232 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 80 PID 232 wrote to memory of 4896 232 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 80 PID 4312 wrote to memory of 1996 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 86 PID 4312 wrote to memory of 1996 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 86 PID 4312 wrote to memory of 1996 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 86 PID 4312 wrote to memory of 1416 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 88 PID 4312 wrote to memory of 1416 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 88 PID 1416 wrote to memory of 2032 1416 cmd.exe 90 PID 1416 wrote to memory of 2032 1416 cmd.exe 90 PID 4312 wrote to memory of 816 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 91 PID 4312 wrote to memory of 816 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 91 PID 4312 wrote to memory of 816 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 91 PID 4312 wrote to memory of 1280 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 93 PID 4312 wrote to memory of 1280 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 93 PID 4312 wrote to memory of 1280 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 93 PID 4312 wrote to memory of 1788 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 95 PID 4312 wrote to memory of 1788 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 95 PID 4312 wrote to memory of 1788 4312 3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe 95 PID 1788 wrote to memory of 3652 1788 csrss.exe 96 PID 1788 wrote to memory of 3652 1788 csrss.exe 96 PID 1788 wrote to memory of 3652 1788 csrss.exe 96 PID 1788 wrote to memory of 2088 1788 csrss.exe 101 PID 1788 wrote to memory of 2088 1788 csrss.exe 101 PID 1788 wrote to memory of 2088 1788 csrss.exe 101 PID 1788 wrote to memory of 4844 1788 csrss.exe 104 PID 1788 wrote to memory of 4844 1788 csrss.exe 104 PID 1788 wrote to memory of 4844 1788 csrss.exe 104 PID 1788 wrote to memory of 1440 1788 csrss.exe 106 PID 1788 wrote to memory of 1440 1788 csrss.exe 106 PID 1376 wrote to memory of 3592 1376 windefender.exe 112 PID 1376 wrote to memory of 3592 1376 windefender.exe 112 PID 1376 wrote to memory of 3592 1376 windefender.exe 112 PID 3592 wrote to memory of 4232 3592 cmd.exe 113 PID 3592 wrote to memory of 4232 3592 cmd.exe 113 PID 3592 wrote to memory of 4232 3592 cmd.exe 113 -
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\3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe"C:\Users\Admin\AppData\Local\Temp\3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:232 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4896
-
-
C:\Users\Admin\AppData\Local\Temp\3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.exe"C:\Users\Admin\AppData\Local\Temp\3b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520.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:4312 -
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:1996
-
-
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:1416 -
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:2032
-
-
-
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:816
-
-
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:1280
-
-
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:1788 -
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:3652
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:2304
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4556
-
-
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:2088
-
-
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:4844
-
-
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:1440
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:1348
-
-
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1376 -
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:3592 -
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:4232
-
-
-
-
-
-
C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4776
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
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5662027c1e7f4f44a2b0418f772db423e
SHA1a58249db89ad16ec489f0b2e213ff2c02eb6a3ae
SHA25647ce5beb9fa507166c83489bdc527316ba73c2d4218faad87966d1a32af41900
SHA5120d47c2ce6048400855204dfa2e2b4a8351eb6a97336dea038b09ec87b9c4342d28406f163b99793505e4dd95cc9501d202f4da129ec6fc76eb5bac4067efa1f5
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD534020d6192f78420b5dd0a07c233dedc
SHA12ec6daf8654fdd3cb5b12c68f7b34690fdf2579a
SHA2568c3def514a85eac12bf65bcb6b209bb5fcc88d7980f3d845d6379b11949d7188
SHA5123ff707644c1ec3090d872a937615e8bebfbc236cc4e2280f54e2d06be89cdeb1d19ade91d0105bb311e0a7baa643973c0366eaa1d058ef05c9d3b7504fb3eb41
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53228abe8044c6dbcfb3a6df792ef2029
SHA1f8f9cf38c3a3dfccfe1cf684f8b72eee5c2c7212
SHA256e5c08f215a0e8aeb9c5f3e45b16b3d4bc0e76f9f3396081b6a05ebf16ba07f3e
SHA512cf86ff3533a8ac246440a767d7f336b8a22fa9c0a29f87c0a7e5f3107946bd10af4736d10e7d8bece0948e36e9a2a7901f310dbfe35e4fde23fd13cebbc0c511
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD537e61e172962d5cd36e3ea2edc0bd42c
SHA1d768db9aec81bbc364f493583a39ca3d76b6f710
SHA256cb60c587ec67883f1c3a8fc144c849c4738519c50a38ebe763ffec8dcbcc0a21
SHA5129fec94252963eccb380c477bfff8b7ebae9a6404c1593cbf29578b57a167b548ab2b79564e2245070826263365284562df89e0dcecf47c04023ae01f66fcd2c9
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ba63ebd779855f53aea2623733570659
SHA1deb3edc62ccbcc0a1e59c522390f5c0c5a329863
SHA25648ba0f211146f9ce4a1320e1813a6d359cbc1ea82a2e9213331e7ea88d4a2e20
SHA5121ea9881f60c6a45911cd13b1fa9f7c278148c4ccd08e67b57ee1830448238380a93a7302c08357e30616e221b545e0b96b5746ca2db96de8889865e80fcd5c59
-
Filesize
4.1MB
MD53c600d96b15616b81003faf9eeb2d9fd
SHA149d41dc0f76caa32a88d322d3d83848744190083
SHA2563b872c63abf8bfc54f647416389cf11b7161224b8a8f7c9df1c6f7a3283f5520
SHA5127e7adb53ff07ce21d3735d5fa7d2467da5e333f6fbfdf97f2529505b510cdf48d8acc084ccb148d80392aa3445e606c3578936c849c161b24b29a64b42771718
-
Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec