Analysis
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max time kernel
150s -
max time network
149s -
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, 15:54
Static task
static1
Behavioral task
behavioral1
Sample
c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe
Resource
win10v2004-20240426-en
General
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Target
c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe
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Size
4.1MB
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MD5
195c4a6780a3ab5a3c4bc15a958d6640
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SHA1
d50cb39c031e7f1935a0a01a381d437e3eefe2ad
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SHA256
c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb
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SHA512
596cf604efe1229ce6dc761e31cc0b95a194709da086ea655ebc4dfe558a5673e5e4ac8885fa156c202d6ce1a933350beffd79c20db54328def1d45bd2fb91f3
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SSDEEP
98304:c3tbwrB0kIuN3D8bfUXVQCwP9Kpl7QJG8rgohSw8D2z60ht59XC:cdQIuMQA9oQJ/gXDN
Malware Config
Signatures
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Glupteba payload 17 IoCs
resource yara_rule behavioral2/memory/4260-2-0x0000000002E70000-0x000000000375B000-memory.dmp family_glupteba behavioral2/memory/4260-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4260-76-0x0000000002E70000-0x000000000375B000-memory.dmp family_glupteba behavioral2/memory/4260-74-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2920-146-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3088-200-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3088-208-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3088-216-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3088-220-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3088-224-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3088-228-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3088-232-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3088-236-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3088-241-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3088-244-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3088-248-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3088-252-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4940 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3088 csrss.exe 3616 injector.exe 1540 windefender.exe 2132 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9ea-205.dat upx behavioral2/memory/1540-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2132-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1540-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2132-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2132-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe 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 -
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 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe File created C:\Windows\rss\csrss.exe c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.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 4816 sc.exe -
pid Process 2932 powershell.exe 1652 powershell.exe 240 powershell.exe 988 powershell.exe 3616 powershell.exe 4888 powershell.exe 3520 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 2032 schtasks.exe 2352 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\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates 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,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-281 = "Central Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-962 = "Paraguay 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\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2892 = "Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.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,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-462 = "Afghanistan Standard 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,-2391 = "Aleutian Daylight Time" c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.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" c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3616 powershell.exe 3616 powershell.exe 4260 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 4260 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 4888 powershell.exe 4888 powershell.exe 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 3520 powershell.exe 3520 powershell.exe 2932 powershell.exe 2932 powershell.exe 1652 powershell.exe 1652 powershell.exe 240 powershell.exe 240 powershell.exe 988 powershell.exe 988 powershell.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3088 csrss.exe 3088 csrss.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3088 csrss.exe 3088 csrss.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3088 csrss.exe 3088 csrss.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe 3616 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3616 powershell.exe Token: SeDebugPrivilege 4260 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe Token: SeImpersonatePrivilege 4260 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe Token: SeDebugPrivilege 4888 powershell.exe Token: SeDebugPrivilege 3520 powershell.exe Token: SeDebugPrivilege 2932 powershell.exe Token: SeDebugPrivilege 1652 powershell.exe Token: SeDebugPrivilege 240 powershell.exe Token: SeDebugPrivilege 988 powershell.exe Token: SeSystemEnvironmentPrivilege 3088 csrss.exe Token: SeSecurityPrivilege 4816 sc.exe Token: SeSecurityPrivilege 4816 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4260 wrote to memory of 3616 4260 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 79 PID 4260 wrote to memory of 3616 4260 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 79 PID 4260 wrote to memory of 3616 4260 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 79 PID 2920 wrote to memory of 4888 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 84 PID 2920 wrote to memory of 4888 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 84 PID 2920 wrote to memory of 4888 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 84 PID 2920 wrote to memory of 3008 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 86 PID 2920 wrote to memory of 3008 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 86 PID 3008 wrote to memory of 4940 3008 cmd.exe 88 PID 3008 wrote to memory of 4940 3008 cmd.exe 88 PID 2920 wrote to memory of 3520 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 89 PID 2920 wrote to memory of 3520 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 89 PID 2920 wrote to memory of 3520 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 89 PID 2920 wrote to memory of 2932 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 91 PID 2920 wrote to memory of 2932 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 91 PID 2920 wrote to memory of 2932 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 91 PID 2920 wrote to memory of 3088 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 93 PID 2920 wrote to memory of 3088 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 93 PID 2920 wrote to memory of 3088 2920 c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe 93 PID 3088 wrote to memory of 1652 3088 csrss.exe 94 PID 3088 wrote to memory of 1652 3088 csrss.exe 94 PID 3088 wrote to memory of 1652 3088 csrss.exe 94 PID 3088 wrote to memory of 240 3088 csrss.exe 99 PID 3088 wrote to memory of 240 3088 csrss.exe 99 PID 3088 wrote to memory of 240 3088 csrss.exe 99 PID 3088 wrote to memory of 988 3088 csrss.exe 102 PID 3088 wrote to memory of 988 3088 csrss.exe 102 PID 3088 wrote to memory of 988 3088 csrss.exe 102 PID 3088 wrote to memory of 3616 3088 csrss.exe 104 PID 3088 wrote to memory of 3616 3088 csrss.exe 104 PID 1540 wrote to memory of 3156 1540 windefender.exe 110 PID 1540 wrote to memory of 3156 1540 windefender.exe 110 PID 1540 wrote to memory of 3156 1540 windefender.exe 110 PID 3156 wrote to memory of 4816 3156 cmd.exe 111 PID 3156 wrote to memory of 4816 3156 cmd.exe 111 PID 3156 wrote to memory of 4816 3156 cmd.exe 111 -
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\c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe"C:\Users\Admin\AppData\Local\Temp\c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4260 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3616
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C:\Users\Admin\AppData\Local\Temp\c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.exe"C:\Users\Admin\AppData\Local\Temp\c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb.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:2920 -
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:4888
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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:3008 -
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:4940
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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:3520
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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:2932
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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:3088 -
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:1652
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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:2032
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:648
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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:240
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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:988
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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:3616
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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:2352
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1540 -
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:3156 -
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:4816
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2132
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
MD555ceeadfd3f87a117c1ca479cc627ddc
SHA16a0f6dfe29c3053ca02ac2d00f421deb969d5cae
SHA256adadd043bd5f446a26edc49fab27e72df66121a6374b849bc1c173ffbe737f6c
SHA512e0a43d95bd21811b297712a58869aa39e2b9365e1415eb5b380aa0e694f7840ca0862299e0fbde5e788f413816fd21fcd2d210f5781bb7c8f0b98c6892d126fb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD581eb6bc7584dcd37e7011f0e5b8cfae6
SHA1d58351bc5ec14034cfa32cf7915a230444e0c204
SHA256b648c780f2f2a7b9b1900ad9d11ffc159037cb5a99fc15892bb998866161e216
SHA512d2dcf91aafe024618e2cf4b0a942b5206186c7acb47f029b14c8c7b2ee154993faa1af996d875b1b9eb678830e4af3e872fc797f73a27eda16cbd4cc8c9bc08c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD510946f34392a15272a6bde059420e8eb
SHA1b13fc6274edbb31aae9ab09f9f74c9242035927b
SHA25605d57fbb5a254761fd66315d3ca504492234a1da112a37f4156ac8997cb3bd20
SHA5121d5b8ef9852730381bc6ea9d94912ec5b16278f00d20b83f67a8fd044619daeceff80238486ae0ea5998ffff7fd83c5511f726f11aac932c54e0f8066bfc58f4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58512924552302c633db4ca1e87e1db9f
SHA1bcb21d67078981dee6d20c8f2845b03d2e172d43
SHA25643d6d1d4402674c52f13d8d73ee5ab73e437fc4c1c757092e734a2d08d3329a5
SHA51277810a657463b22746bce5385c240959c4dc54f5345b2642a31223ce5219ad1f5121cc605fac4847c8c968898515d9b15d8c6c31c0d3c400ff4afdc6e91f4ea6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD584a60bff655637d4a2744c6b4611ef8c
SHA19a18505b575de0504efd38e04056fb6c3772470d
SHA256a239bc395ef14ad7da15e1e1aa9c9940e79f409e0909ff2ad65f034dd81b6b43
SHA51218d26ac98a8018f064793d397fc62aab302d33ae00bd00d8eb2b38725118f539fdcc557eed2dd139543d3763407db47279d8881992b5f53e79d3882c4ee905b6
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Filesize
4.1MB
MD5195c4a6780a3ab5a3c4bc15a958d6640
SHA1d50cb39c031e7f1935a0a01a381d437e3eefe2ad
SHA256c187fa44ef62a3e133e5ffe55615b8511738b8b91a57d689f8e550920504dfbb
SHA512596cf604efe1229ce6dc761e31cc0b95a194709da086ea655ebc4dfe558a5673e5e4ac8885fa156c202d6ce1a933350beffd79c20db54328def1d45bd2fb91f3
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec