Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
20-05-2024 04:08
Static task
static1
Behavioral task
behavioral1
Sample
f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe
Resource
win10v2004-20240426-en
General
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Target
f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe
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Size
4.1MB
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MD5
0d3aa797b406b8b6e3b95353e7a51d62
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SHA1
7eb0c373c6811eaf98c51d9b66bcfdd84d11a248
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SHA256
f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01
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SHA512
5ecbc4a308c15742cdfa41203e10a713a4afbf774e065a6898b630a5525da7e66086a45155822da492500d25e452b1f401995af7ca3d801005e93927943885a1
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SSDEEP
98304:uQAQcsa3GhfWYEvpb4LdECaqY+VYhFzXw/u5g9cAd9nQ:uQAQcDPYxuCJe7X5ghfQ
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/3352-2-0x00000000047E0000-0x00000000050CB000-memory.dmp family_glupteba behavioral1/memory/3352-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4136-130-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3352-135-0x00000000047E0000-0x00000000050CB000-memory.dmp family_glupteba behavioral1/memory/3352-133-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3352-207-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2388-214-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2388-226-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2388-228-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2388-232-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2388-235-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2388-238-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2388-240-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2388-243-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2388-247-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2388-250-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2388-253-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2388-255-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2388-259-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 4400 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 2388 csrss.exe 3336 injector.exe 1340 windefender.exe 1480 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral1/memory/1340-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1480-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1340-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1480-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1480-234-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Set value (str) \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\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 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.
Processes:
f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe -
Drops file in Windows directory 4 IoCs
Processes:
f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.execsrss.exedescription ioc process File opened for modification C:\Windows\rss f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe File created C:\Windows\rss\csrss.exe f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 1692 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 2732 powershell.exe 3008 powershell.exe 1100 powershell.exe 5080 powershell.exe 720 powershell.exe 544 powershell.exe 1072 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 404 schtasks.exe 3488 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exef61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exepowershell.exewindefender.exepowershell.exepowershell.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.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\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.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\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-661 = "Cen. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-364 = "Middle East 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,-2372 = "Easter Island Standard Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard 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)" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.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\@tzres.dll,-51 = "Greenland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.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\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-161 = "Central Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.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,-621 = "Korea Daylight Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2571 = "Turks and Caicos Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exef61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exepowershell.exef61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 3008 powershell.exe 3008 powershell.exe 3352 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe 3352 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe 1100 powershell.exe 1100 powershell.exe 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe 5080 powershell.exe 5080 powershell.exe 720 powershell.exe 720 powershell.exe 720 powershell.exe 544 powershell.exe 544 powershell.exe 544 powershell.exe 1072 powershell.exe 1072 powershell.exe 1072 powershell.exe 2732 powershell.exe 2732 powershell.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 2388 csrss.exe 2388 csrss.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 2388 csrss.exe 2388 csrss.exe 3336 injector.exe 3336 injector.exe 2388 csrss.exe 2388 csrss.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe 3336 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exef61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 3008 powershell.exe Token: SeDebugPrivilege 3352 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Token: SeImpersonatePrivilege 3352 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe Token: SeDebugPrivilege 1100 powershell.exe Token: SeDebugPrivilege 5080 powershell.exe Token: SeDebugPrivilege 720 powershell.exe Token: SeDebugPrivilege 544 powershell.exe Token: SeDebugPrivilege 1072 powershell.exe Token: SeDebugPrivilege 2732 powershell.exe Token: SeSystemEnvironmentPrivilege 2388 csrss.exe Token: SeSecurityPrivilege 1692 sc.exe Token: SeSecurityPrivilege 1692 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exef61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 3352 wrote to memory of 3008 3352 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe powershell.exe PID 3352 wrote to memory of 3008 3352 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe powershell.exe PID 3352 wrote to memory of 3008 3352 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe powershell.exe PID 4136 wrote to memory of 1100 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe powershell.exe PID 4136 wrote to memory of 1100 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe powershell.exe PID 4136 wrote to memory of 1100 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe powershell.exe PID 4136 wrote to memory of 4556 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe cmd.exe PID 4136 wrote to memory of 4556 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe cmd.exe PID 4556 wrote to memory of 4400 4556 cmd.exe netsh.exe PID 4556 wrote to memory of 4400 4556 cmd.exe netsh.exe PID 4136 wrote to memory of 5080 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe powershell.exe PID 4136 wrote to memory of 5080 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe powershell.exe PID 4136 wrote to memory of 5080 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe powershell.exe PID 4136 wrote to memory of 720 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe powershell.exe PID 4136 wrote to memory of 720 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe powershell.exe PID 4136 wrote to memory of 720 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe powershell.exe PID 4136 wrote to memory of 2388 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe csrss.exe PID 4136 wrote to memory of 2388 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe csrss.exe PID 4136 wrote to memory of 2388 4136 f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe csrss.exe PID 2388 wrote to memory of 544 2388 csrss.exe powershell.exe PID 2388 wrote to memory of 544 2388 csrss.exe powershell.exe PID 2388 wrote to memory of 544 2388 csrss.exe powershell.exe PID 2388 wrote to memory of 1072 2388 csrss.exe powershell.exe PID 2388 wrote to memory of 1072 2388 csrss.exe powershell.exe PID 2388 wrote to memory of 1072 2388 csrss.exe powershell.exe PID 2388 wrote to memory of 2732 2388 csrss.exe powershell.exe PID 2388 wrote to memory of 2732 2388 csrss.exe powershell.exe PID 2388 wrote to memory of 2732 2388 csrss.exe powershell.exe PID 2388 wrote to memory of 3336 2388 csrss.exe injector.exe PID 2388 wrote to memory of 3336 2388 csrss.exe injector.exe PID 1340 wrote to memory of 4104 1340 windefender.exe cmd.exe PID 1340 wrote to memory of 4104 1340 windefender.exe cmd.exe PID 1340 wrote to memory of 4104 1340 windefender.exe cmd.exe PID 4104 wrote to memory of 1692 4104 cmd.exe sc.exe PID 4104 wrote to memory of 1692 4104 cmd.exe sc.exe PID 4104 wrote to memory of 1692 4104 cmd.exe sc.exe -
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\f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe"C:\Users\Admin\AppData\Local\Temp\f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3352 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3008 -
C:\Users\Admin\AppData\Local\Temp\f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.exe"C:\Users\Admin\AppData\Local\Temp\f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01.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:4136 -
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:1100 -
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:4556 -
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:4400 -
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:5080 -
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:720 -
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:2388 -
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:544 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:404 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:5072
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1072 -
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:2732 -
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:3336 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3488 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1340 -
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:4104 -
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:1692
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1480
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b0e3fb0d3f57202e2a456695440a9cc5
SHA1883d53b06f2e4aa2bb14b8e32edccbd02614c917
SHA256499ad9790fef64c4796db5c91f1fc512915a0c054692f5df08f76e6d1835538c
SHA51283fc20b12586355e34bea107bbd5404e56dfd13338e99e0ae99c4163fc2f48bd2ba5051157437dde8594bcedb2556aafb6b2823754936ac95e4118de24bcdbc0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56b7b5b8c4c4f69035fea9ef42a8dea1e
SHA1a46abf6f5fc79f107c73a705e41def503de5ea8d
SHA256184e95d23dae6b20b7b383be14baed213db7b6283398a9d4dfd989ce552bae76
SHA512a470924201297b67cba5aee426c71420aabd8ae5851f49512d28811cc692c32922f58d7c0bd56b34818f3afd16afa1583f6009d2cff95f7ffc0413a55819a32c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59b9bd8c872607ff575680c3160fa6307
SHA19b19222b74da4a39049a6a6693af2872064c2d30
SHA256fba612fbf10c34f810b18b517eea69f653dbdaaaa79e7fb38d07ef7e54d8aee4
SHA512b04a07e44da9975e68f8eff276c63862d95173ff3a2922e626035bc28e7d90dfc95f1f693d66d372abad8cd263eb37bfe0ec9c97aaefc1c5d511c372e78d8a09
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54f313d57eea4c0c7a147fe1d46c1f80f
SHA1008275c017d31b9a8abba22a5beb0d6c19592781
SHA2567c8a7334b0e3835b6ae42a92eb6af6008c2230e82b6560ccf7458476159567dc
SHA5121a79f90cc60226848c0967820565620a1cb7930844b91ecba6b29e5dc02cbe7d9be336aac35206b15caa03a305af0af53340d8e0886d6f40dab0a1e0aa875d93
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59564e48fc62bca79ada3d56f5c45a5d3
SHA1483f3c8655fa7a1046059fb635255dddbad829f2
SHA256d2ef725467fdd783490f8b1b71736d513999a261579dd5b10f9a91311a58abef
SHA5129fa8111d1d8dd00311b7527a94d4ece25706e9696648c12bd5de7fc1fa6aff0c0262efb8f1de8db2f30e74bc2fdcb2846297a763d94f2719a7d401ee6cefd940
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Filesize
4.1MB
MD50d3aa797b406b8b6e3b95353e7a51d62
SHA17eb0c373c6811eaf98c51d9b66bcfdd84d11a248
SHA256f61df880bccd5afdcead8308b6b70e87c3995f3aba7887c0fd988f7aedebaf01
SHA5125ecbc4a308c15742cdfa41203e10a713a4afbf774e065a6898b630a5525da7e66086a45155822da492500d25e452b1f401995af7ca3d801005e93927943885a1
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec