Analysis
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max time kernel
149s -
max time network
127s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
16-05-2024 10:22
Static task
static1
Behavioral task
behavioral1
Sample
311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe
Resource
win10v2004-20240508-en
General
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Target
311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe
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Size
4.1MB
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MD5
66704c4648d3dd1ece32a06644386ff2
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SHA1
63b9d767df00cb65447992ef7353527d7caee2c6
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SHA256
311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a
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SHA512
74c7a6ee75fca3a12bc5dac376dd8d09b7999c23db59882d20e30aa283397d1a54fb2bc2304184c129fda123dfe8153aa11e182151dee9fd7c3144b6dbf11f22
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SSDEEP
98304:1BH5QtHgtXZGwxAeX68LG3wNCsYjHyiS0gsLIyJOWEFSdaDQG3a9nt5:1BZQtHgtXlxHq4G3ixkyiJTOnSQDy9nr
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/2148-2-0x0000000002ED0000-0x00000000037BB000-memory.dmp family_glupteba behavioral2/memory/2148-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2148-76-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2148-98-0x0000000002ED0000-0x00000000037BB000-memory.dmp family_glupteba behavioral2/memory/2352-146-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/488-200-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/488-214-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/488-217-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/488-221-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/488-225-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/488-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/488-234-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/488-237-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/488-241-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/488-245-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/488-250-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/488-253-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/488-257-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 4224 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 488 csrss.exe 5048 injector.exe 2428 windefender.exe 1980 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000400000002aa3b-206.dat upx behavioral2/memory/2428-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2428-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1980-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1980-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1980-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process File 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.
Processes:
311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe -
Drops file in Windows directory 4 IoCs
Processes:
csrss.exe311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exedescription ioc Process File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe File created C:\Windows\rss\csrss.exe 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid Process 3616 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 1924 powershell.exe 3904 powershell.exe 4232 powershell.exe 3124 powershell.exe 2612 powershell.exe 2328 powershell.exe 2752 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 5076 schtasks.exe 1760 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.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,-262 = "GMT Standard Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-572 = "China 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 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,-1502 = "Turkey Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-631 = "Tokyo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.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,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.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,-2341 = "Haiti Daylight 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,-105 = "Central Brazilian Standard Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1662 = "Bahia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-731 = "Fiji Daylight 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\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.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,-262 = "GMT Standard 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,-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,-412 = "E. Africa Standard Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs 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,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2571 = "Turks and Caicos Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exepowershell.exe311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 3124 powershell.exe 3124 powershell.exe 2148 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 2148 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 2612 powershell.exe 2612 powershell.exe 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 2328 powershell.exe 2328 powershell.exe 2752 powershell.exe 2752 powershell.exe 1924 powershell.exe 1924 powershell.exe 3904 powershell.exe 3904 powershell.exe 4232 powershell.exe 4232 powershell.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 488 csrss.exe 488 csrss.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 488 csrss.exe 488 csrss.exe 5048 injector.exe 5048 injector.exe 488 csrss.exe 488 csrss.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe 5048 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 3124 powershell.exe Token: SeDebugPrivilege 2148 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Token: SeImpersonatePrivilege 2148 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe Token: SeDebugPrivilege 2612 powershell.exe Token: SeDebugPrivilege 2328 powershell.exe Token: SeDebugPrivilege 2752 powershell.exe Token: SeDebugPrivilege 1924 powershell.exe Token: SeDebugPrivilege 3904 powershell.exe Token: SeDebugPrivilege 4232 powershell.exe Token: SeSystemEnvironmentPrivilege 488 csrss.exe Token: SeSecurityPrivilege 3616 sc.exe Token: SeSecurityPrivilege 3616 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 2148 wrote to memory of 3124 2148 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 82 PID 2148 wrote to memory of 3124 2148 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 82 PID 2148 wrote to memory of 3124 2148 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 82 PID 2352 wrote to memory of 2612 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 89 PID 2352 wrote to memory of 2612 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 89 PID 2352 wrote to memory of 2612 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 89 PID 2352 wrote to memory of 3460 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 94 PID 2352 wrote to memory of 3460 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 94 PID 3460 wrote to memory of 4224 3460 cmd.exe 96 PID 3460 wrote to memory of 4224 3460 cmd.exe 96 PID 2352 wrote to memory of 2328 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 97 PID 2352 wrote to memory of 2328 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 97 PID 2352 wrote to memory of 2328 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 97 PID 2352 wrote to memory of 2752 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 99 PID 2352 wrote to memory of 2752 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 99 PID 2352 wrote to memory of 2752 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 99 PID 2352 wrote to memory of 488 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 101 PID 2352 wrote to memory of 488 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 101 PID 2352 wrote to memory of 488 2352 311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe 101 PID 488 wrote to memory of 1924 488 csrss.exe 102 PID 488 wrote to memory of 1924 488 csrss.exe 102 PID 488 wrote to memory of 1924 488 csrss.exe 102 PID 488 wrote to memory of 3904 488 csrss.exe 108 PID 488 wrote to memory of 3904 488 csrss.exe 108 PID 488 wrote to memory of 3904 488 csrss.exe 108 PID 488 wrote to memory of 4232 488 csrss.exe 110 PID 488 wrote to memory of 4232 488 csrss.exe 110 PID 488 wrote to memory of 4232 488 csrss.exe 110 PID 488 wrote to memory of 5048 488 csrss.exe 112 PID 488 wrote to memory of 5048 488 csrss.exe 112 PID 2428 wrote to memory of 4728 2428 windefender.exe 118 PID 2428 wrote to memory of 4728 2428 windefender.exe 118 PID 2428 wrote to memory of 4728 2428 windefender.exe 118 PID 4728 wrote to memory of 3616 4728 cmd.exe 119 PID 4728 wrote to memory of 3616 4728 cmd.exe 119 PID 4728 wrote to memory of 3616 4728 cmd.exe 119 -
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\311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe"C:\Users\Admin\AppData\Local\Temp\311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2148 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3124
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C:\Users\Admin\AppData\Local\Temp\311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.exe"C:\Users\Admin\AppData\Local\Temp\311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a.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:2352 -
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:2612
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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:3460 -
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:4224
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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:2328
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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:2752
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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:488 -
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:1924
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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:5076
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:5112
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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:3904
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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:4232
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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:5048
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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:1760
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2428 -
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:4728 -
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:3616
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1980
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50e4921de9fd077e244b5935600f7c66d
SHA1ce24b9c323215938f292ef7ad39992d74a01c9a7
SHA25669a0b7208dc0b8d11ac75ab04c2c56cb59fd9a0d44f54ab11178f455d6f0c87d
SHA512adb97b212c84b2eb51d73d87102553138620ebefabb6dc4a3c1b058b973878d78f2b1dda40c74ba37cabeb505a6c38066d3b7ded0f7a953ad4c3304bded413c8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ccf425411ada0b7725e46a6a8fc21ba9
SHA14b844c573c1309052b59b4ddc5d0f0b8f3d06bb3
SHA25659e9bb76afda584b44ace0e486bdb52c8bbc85b02c443aebc81207644bfc30d8
SHA512c152212ff8da0651d4f169abc8fe34e7d3b33ab3550581beeb2c55fbc3c3077a158edc76408c8762f23ed314b9be5c72cb0e29ea551b04dd8d4501da3d179642
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5036126162601c38f794897e866d315eb
SHA1f51d1c0f52cacb081685205dd0b560ef42e1c827
SHA2560c28a475bd75e0e501eb97dfbf90d996f043f2669ccd4342ffa8abf595f99490
SHA512acd341d53bc53fa10c170a44832f341ca1267fa83a78ad59bf7a9ddb0879a473330be4d608719711c7e5ff91729461f4a3564a1c43b91cf48e817ed82933c20f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52f4bdc91fb0ecb85748a94afae685612
SHA1e6c9d6ed1245856f9277dc5d8848db84ad6143f4
SHA256f017b8b0717d157ef71a432d02ee720cb80ce14abaaeadf863435f2f91cd2210
SHA5126667658216ddc21df62adde02a0c0e4f2b795877fdd9826e190e795b1a4664f5b071e79de0c66fd1d915cbe0c5a2a2da38c27240bc101d8863e13b58c2e57c0e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD593c6c5698ff89bf1ac7f30736a604db3
SHA1f71f08f7918191748385a5ee3cb229f8c1464a89
SHA256dcde811ec19679a4463855fbc11988e92e4d2ad3003a38996d63fdadfeb2ccb9
SHA512d06f20d6363d36fec1315292220d7475db326b9a3abe6e103419b1cd6a81d1d10256578a63f3e265bbe21a05b8ff5e11e797f5d7be656eba47fdc23a1e947cbd
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Filesize
4.1MB
MD566704c4648d3dd1ece32a06644386ff2
SHA163b9d767df00cb65447992ef7353527d7caee2c6
SHA256311b93602be5954fd0fd5c5b27bd8dbedf1ed5f1276255c2b242719a00a1297a
SHA51274c7a6ee75fca3a12bc5dac376dd8d09b7999c23db59882d20e30aa283397d1a54fb2bc2304184c129fda123dfe8153aa11e182151dee9fd7c3144b6dbf11f22
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec