Analysis
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max time kernel
149s -
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
09/05/2024, 19:39
Static task
static1
Behavioral task
behavioral1
Sample
335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe
Resource
win10v2004-20240508-en
General
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Target
335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe
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Size
4.1MB
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MD5
61f1436c6447d03f9eeea773221b2f4a
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SHA1
2999adf3d0415844a19cdc3985ae8395b2f01336
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SHA256
335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50
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SHA512
f1787790a07ba58a31fd988c1851d5207e02fdc2092c997107babe3dd3e073a39c0baf8780bce6d2a7258ed9ccc7adf78cbd30d76a891bdb7733ec64dcca3fb7
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SSDEEP
98304:VwBco1salv4p8AdbboIKOJLJ1nO5Zld79mTpo:VwqoWyv4yANjKQa7oy
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/2720-2-0x00000000050C0000-0x00000000059AB000-memory.dmp family_glupteba behavioral2/memory/2720-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2720-37-0x0000000000400000-0x0000000002ED5000-memory.dmp family_glupteba behavioral2/memory/2720-52-0x0000000000400000-0x0000000002ED5000-memory.dmp family_glupteba behavioral2/memory/2720-76-0x00000000050C0000-0x00000000059AB000-memory.dmp family_glupteba behavioral2/memory/3740-75-0x0000000000400000-0x0000000002ED5000-memory.dmp family_glupteba behavioral2/memory/2720-100-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3740-128-0x0000000000400000-0x0000000002ED5000-memory.dmp family_glupteba behavioral2/memory/2448-198-0x0000000000400000-0x0000000002ED5000-memory.dmp family_glupteba behavioral2/memory/2448-214-0x0000000000400000-0x0000000002ED5000-memory.dmp family_glupteba behavioral2/memory/2448-217-0x0000000000400000-0x0000000002ED5000-memory.dmp family_glupteba behavioral2/memory/2448-221-0x0000000000400000-0x0000000002ED5000-memory.dmp family_glupteba behavioral2/memory/2448-225-0x0000000000400000-0x0000000002ED5000-memory.dmp family_glupteba behavioral2/memory/2448-229-0x0000000000400000-0x0000000002ED5000-memory.dmp family_glupteba behavioral2/memory/2448-233-0x0000000000400000-0x0000000002ED5000-memory.dmp family_glupteba behavioral2/memory/2448-237-0x0000000000400000-0x0000000002ED5000-memory.dmp family_glupteba behavioral2/memory/2448-241-0x0000000000400000-0x0000000002ED5000-memory.dmp family_glupteba behavioral2/memory/2448-245-0x0000000000400000-0x0000000002ED5000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 240 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2448 csrss.exe 3884 injector.exe 2276 windefender.exe 3496 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9ff-208.dat upx behavioral2/memory/2276-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2276-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3496-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3496-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3496-238-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\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 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 -
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 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe File created C:\Windows\rss\csrss.exe 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe File created 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 1224 sc.exe -
pid Process 3804 powershell.exe 804 powershell.exe 4428 powershell.exe 3276 powershell.exe 1864 powershell.exe 1860 powershell.exe 4252 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 1772 schtasks.exe 2100 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,-501 = "Nepal 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" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates 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,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs 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\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.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\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-351 = "FLE Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-272 = "Greenwich Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.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,-2002 = "Cabo Verde Standard Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.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,-532 = "Sri Lanka 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" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-391 = "Arab 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 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,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4252 powershell.exe 4252 powershell.exe 2720 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 2720 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 3804 powershell.exe 3804 powershell.exe 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 804 powershell.exe 804 powershell.exe 4428 powershell.exe 4428 powershell.exe 3276 powershell.exe 3276 powershell.exe 1864 powershell.exe 1864 powershell.exe 1860 powershell.exe 1860 powershell.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 2448 csrss.exe 2448 csrss.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 2448 csrss.exe 2448 csrss.exe 3884 injector.exe 3884 injector.exe 2448 csrss.exe 2448 csrss.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe 3884 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4252 powershell.exe Token: SeDebugPrivilege 2720 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Token: SeImpersonatePrivilege 2720 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe Token: SeDebugPrivilege 3804 powershell.exe Token: SeDebugPrivilege 804 powershell.exe Token: SeDebugPrivilege 4428 powershell.exe Token: SeDebugPrivilege 3276 powershell.exe Token: SeDebugPrivilege 1864 powershell.exe Token: SeDebugPrivilege 1860 powershell.exe Token: SeSystemEnvironmentPrivilege 2448 csrss.exe Token: SeSecurityPrivilege 1224 sc.exe Token: SeSecurityPrivilege 1224 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2720 wrote to memory of 4252 2720 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 78 PID 2720 wrote to memory of 4252 2720 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 78 PID 2720 wrote to memory of 4252 2720 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 78 PID 3740 wrote to memory of 3804 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 83 PID 3740 wrote to memory of 3804 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 83 PID 3740 wrote to memory of 3804 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 83 PID 3740 wrote to memory of 4120 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 85 PID 3740 wrote to memory of 4120 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 85 PID 4120 wrote to memory of 240 4120 cmd.exe 87 PID 4120 wrote to memory of 240 4120 cmd.exe 87 PID 3740 wrote to memory of 804 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 88 PID 3740 wrote to memory of 804 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 88 PID 3740 wrote to memory of 804 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 88 PID 3740 wrote to memory of 4428 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 90 PID 3740 wrote to memory of 4428 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 90 PID 3740 wrote to memory of 4428 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 90 PID 3740 wrote to memory of 2448 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 92 PID 3740 wrote to memory of 2448 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 92 PID 3740 wrote to memory of 2448 3740 335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe 92 PID 2448 wrote to memory of 3276 2448 csrss.exe 93 PID 2448 wrote to memory of 3276 2448 csrss.exe 93 PID 2448 wrote to memory of 3276 2448 csrss.exe 93 PID 2448 wrote to memory of 1864 2448 csrss.exe 98 PID 2448 wrote to memory of 1864 2448 csrss.exe 98 PID 2448 wrote to memory of 1864 2448 csrss.exe 98 PID 2448 wrote to memory of 1860 2448 csrss.exe 101 PID 2448 wrote to memory of 1860 2448 csrss.exe 101 PID 2448 wrote to memory of 1860 2448 csrss.exe 101 PID 2448 wrote to memory of 3884 2448 csrss.exe 103 PID 2448 wrote to memory of 3884 2448 csrss.exe 103 PID 2276 wrote to memory of 1136 2276 windefender.exe 109 PID 2276 wrote to memory of 1136 2276 windefender.exe 109 PID 2276 wrote to memory of 1136 2276 windefender.exe 109 PID 1136 wrote to memory of 1224 1136 cmd.exe 110 PID 1136 wrote to memory of 1224 1136 cmd.exe 110 PID 1136 wrote to memory of 1224 1136 cmd.exe 110 -
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\335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe"C:\Users\Admin\AppData\Local\Temp\335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2720 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4252
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C:\Users\Admin\AppData\Local\Temp\335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.exe"C:\Users\Admin\AppData\Local\Temp\335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50.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:3740 -
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:3804
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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:4120 -
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:240
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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:804
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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:4428
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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:2448 -
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:3276
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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:1772
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1244
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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:1864
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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:1860
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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:3884
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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:2100
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2276 -
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:1136 -
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:1224
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3496
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c3ca172e079e0c9da28f3307bf00351e
SHA10fe992c6ab70a81ce03800bbd1e1344e6fd8e46a
SHA256db831b0167aca04db663a538a45281c90dbb1cc15c859da77e19c4d9fe2a1d3c
SHA512b541b5eacb2354e13347f75f51789a8ad7eeacdfbc4cb1a5651b625098275f9f3ba6abb2c93786a66d5a8680af178e058bb0e214b1bde9fa9c154c9922a727b9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50bb502248cae2f1993ec50184a42d2ba
SHA172d4eb0cebaea72138c333e96056bffb4b779166
SHA2562a8b93a03d79c14e73d9243ff8183b638f0601520170b62d7aa4dbca0313b602
SHA512ee2dcc206f90f4b88789e7f64c8b6332a9b0d20890cd27bb2f09e3801d3bdce7c1fa080d0758c088e2d15081d451324e4a3e64c938283fb2adc8d676b58b4b39
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD574859b846ceaaedb64fc18e99501ebf9
SHA1a34e30e749cf2b94128c085bb43b7a811c327bd8
SHA25627653b0d3a39583caf1c19215777c3578bc01c65ba6e3bdc9867a5d9046b7b61
SHA51285fe0a4407bb618e2889b6d804d1aefd8901ed6e58c3da3d117d122c621a0f3c69fe4057d721de931b539e6b1bd1e31193c1a04f45fb6c45dcf4c67fb9b1ba12
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51feff004693a10518fc9925c1bf1272f
SHA17108a20687284fb857a827b219c236b76fe4a07f
SHA25648627e69af4083cb586c17c8151582430cf06e5af3bfaaf296af0c9ba06cd9fa
SHA51241cecb9ac720b689632694e08f42d6a81a5a6d083b480087ab4b3ff35e7d2a6bda32102f12849607ed30fc375aeda726c57ccdb80c4f396e6b29dda976898a5a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53f37311268fa88c0b0303cb044a8044b
SHA1a2cfefcdbf919145e574f1dc94ec7915951c15eb
SHA2563476294f2b8f41b6b33d308f3c056eb01393a218d56272ed2ce158b4e95c10ea
SHA512b8b5609d3c75c2f0797702582e6755c1378bee37c967165b2cfc8f1ea7bec8c428220ab44e9de44a4280fb7344a772d1799bd886bcc595c43d2cb0dc38f06158
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Filesize
4.1MB
MD561f1436c6447d03f9eeea773221b2f4a
SHA12999adf3d0415844a19cdc3985ae8395b2f01336
SHA256335e3804c0837ee9ce9db5ef6fd041ff05015598a4e03b71de443425f6ba1c50
SHA512f1787790a07ba58a31fd988c1851d5207e02fdc2092c997107babe3dd3e073a39c0baf8780bce6d2a7258ed9ccc7adf78cbd30d76a891bdb7733ec64dcca3fb7
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec