Analysis
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max time kernel
149s -
max time network
132s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 20:34
Static task
static1
Behavioral task
behavioral1
Sample
f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe
Resource
win10v2004-20240508-en
General
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Target
f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe
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Size
4.1MB
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MD5
4fa1537147b4599785bd8700b147cb1d
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SHA1
6cb3e5043cbefbbe79b0ec1bc7fea081d9190470
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SHA256
f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd
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SHA512
ad955e33bc29781fef58e19c37225c52eaf3e23dca8f1a48a52139dba6afb7cfc7de94bf78e14bf43faedd12f2260ed1e6b4b4d92cb6480b53a8c2bcc8d299d6
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SSDEEP
98304:b7sgfTqZm7fywQIpjGUn+cmloZHued8miXbTsPufBvN/:bzgmDywQg+foZ8mw6S9
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/3828-2-0x0000000004980000-0x000000000526B000-memory.dmp family_glupteba behavioral1/memory/3828-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3828-57-0x0000000004980000-0x000000000526B000-memory.dmp family_glupteba behavioral1/memory/3828-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3828-54-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2696-133-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2772-217-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2772-221-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2772-228-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2772-230-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2772-232-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2772-234-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2772-236-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2772-238-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2772-240-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2772-242-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2772-244-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2772-246-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2772-248-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 3060 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 2772 csrss.exe 4892 injector.exe 2312 windefender.exe 1832 windefender.exe -
Processes:
resource yara_rule behavioral1/files/0x000800000002340b-220.dat upx behavioral1/memory/2312-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1832-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2312-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1832-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1832-233-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
csrss.exef9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.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 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 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:
f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe -
Drops file in Windows directory 4 IoCs
Processes:
f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe File created C:\Windows\rss\csrss.exe f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.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 2428 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 1356 powershell.exe 4684 powershell.exe 1432 powershell.exe 1600 powershell.exe 980 powershell.exe 4820 powershell.exe 1988 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 3204 schtasks.exe 780 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exewindefender.exef9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.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,-2591 = "Tocantins Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.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\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\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,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 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,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 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,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.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\@tzres.dll,-2161 = "Altai Daylight Time" windefender.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,-1872 = "Russia TZ 7 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-651 = "AUS Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-111 = "Eastern Daylight 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\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.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,-461 = "Afghanistan Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.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,-772 = "Montevideo Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exef9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exepowershell.exef9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4820 powershell.exe 4820 powershell.exe 3828 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 3828 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 1988 powershell.exe 1988 powershell.exe 1988 powershell.exe 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 1356 powershell.exe 1356 powershell.exe 1356 powershell.exe 4684 powershell.exe 4684 powershell.exe 4684 powershell.exe 1432 powershell.exe 1432 powershell.exe 1432 powershell.exe 1600 powershell.exe 1600 powershell.exe 980 powershell.exe 980 powershell.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 2772 csrss.exe 2772 csrss.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 2772 csrss.exe 2772 csrss.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 2772 csrss.exe 2772 csrss.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe 4892 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exef9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4820 powershell.exe Token: SeDebugPrivilege 3828 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Token: SeImpersonatePrivilege 3828 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Token: SeDebugPrivilege 1988 powershell.exe Token: SeDebugPrivilege 1356 powershell.exe Token: SeDebugPrivilege 4684 powershell.exe Token: SeDebugPrivilege 1432 powershell.exe Token: SeDebugPrivilege 1600 powershell.exe Token: SeDebugPrivilege 980 powershell.exe Token: SeSystemEnvironmentPrivilege 2772 csrss.exe Token: SeSecurityPrivilege 2428 sc.exe Token: SeSecurityPrivilege 2428 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exef9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 3828 wrote to memory of 4820 3828 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 84 PID 3828 wrote to memory of 4820 3828 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 84 PID 3828 wrote to memory of 4820 3828 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 84 PID 2696 wrote to memory of 1988 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 96 PID 2696 wrote to memory of 1988 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 96 PID 2696 wrote to memory of 1988 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 96 PID 2696 wrote to memory of 1588 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 99 PID 2696 wrote to memory of 1588 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 99 PID 1588 wrote to memory of 3060 1588 cmd.exe 101 PID 1588 wrote to memory of 3060 1588 cmd.exe 101 PID 2696 wrote to memory of 1356 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 103 PID 2696 wrote to memory of 1356 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 103 PID 2696 wrote to memory of 1356 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 103 PID 2696 wrote to memory of 4684 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 106 PID 2696 wrote to memory of 4684 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 106 PID 2696 wrote to memory of 4684 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 106 PID 2696 wrote to memory of 2772 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 108 PID 2696 wrote to memory of 2772 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 108 PID 2696 wrote to memory of 2772 2696 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 108 PID 2772 wrote to memory of 1432 2772 csrss.exe 109 PID 2772 wrote to memory of 1432 2772 csrss.exe 109 PID 2772 wrote to memory of 1432 2772 csrss.exe 109 PID 2772 wrote to memory of 1600 2772 csrss.exe 115 PID 2772 wrote to memory of 1600 2772 csrss.exe 115 PID 2772 wrote to memory of 1600 2772 csrss.exe 115 PID 2772 wrote to memory of 980 2772 csrss.exe 117 PID 2772 wrote to memory of 980 2772 csrss.exe 117 PID 2772 wrote to memory of 980 2772 csrss.exe 117 PID 2772 wrote to memory of 4892 2772 csrss.exe 119 PID 2772 wrote to memory of 4892 2772 csrss.exe 119 PID 2312 wrote to memory of 3040 2312 windefender.exe 126 PID 2312 wrote to memory of 3040 2312 windefender.exe 126 PID 2312 wrote to memory of 3040 2312 windefender.exe 126 PID 3040 wrote to memory of 2428 3040 cmd.exe 127 PID 3040 wrote to memory of 2428 3040 cmd.exe 127 PID 3040 wrote to memory of 2428 3040 cmd.exe 127 -
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\f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe"C:\Users\Admin\AppData\Local\Temp\f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3828 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4820
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C:\Users\Admin\AppData\Local\Temp\f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe"C:\Users\Admin\AppData\Local\Temp\f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.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:2696 -
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:1988
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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:1588 -
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:3060
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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:1356
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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:4684
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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:2772 -
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:1432
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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:3204
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4388
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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:1600
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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:980
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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:4892
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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:780
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2312 -
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:3040 -
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:2428
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1832
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5be3891e9a589140d31f037e427655c9f
SHA13d5ea61653f3553a544d5501b01bfe23cccd437a
SHA256db7be4db675a72bd66d7fa60225677a213a026b4c41dfab5845a17f95ea7d21d
SHA512b1a5621fcc1e6ef02d66fec862ea4342ca8b548b4c427d304703c8f0ded88daa01c7335267bb51fc06e554252a2d5bddcf79606bac645bcfae73d60f7f59421d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58825cebc37057909c60426b498c8af3c
SHA17ebe7c36751e72929a92e495ed2b91fd1a26b484
SHA2562e240fcc217ae405847a82b70fac6a5c7e37940a5cf403b0d2898b1eadf693af
SHA512f8e6aedce22969e4ddac73a9ebfdc425ee97e3589907f67a93faeb6f5d7cf95b80ebe8ab38534245779371905cb502c93e218a55ffd2fe94f307ef0fa5be89a0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b8992acd471a52a3c9a2c0e5e01e1923
SHA114c6d5c3c6c1f916b14fa1559a91e45622d9917c
SHA25628b6c863031398c9b0df7196b607921b7df8e25f5b3236a51dd09764aa60c49f
SHA5124ea5ca8b1bea3af2161d3392973c259af6fb1f8d9ffaee02a0463d46fcbe7dfcadd83e66e159f0fe95d4058b70b7bffd0364797272cd01252979214a438d0a0b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51170a8f497a4b86f906821b9967f3b4a
SHA1d02dbb662cb13ad4fac2011b7ca7ed6889204efb
SHA256387c3086dec5b347817eb725fc6d0ebef40318bb06b52393517cd2d7fe5ab43a
SHA512c15a9217ddbc18453d4df8948ccaae03955baa365028d39a993877b95b52b43a18f094da74a54b44a5b429c6f382867a7e9680b6164ebf849d8869590655288f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52c73fda984befa5877cb670bc920c7f8
SHA1db6de9d1ce9c634edb21c28f1ea4226c6d198879
SHA256a905adc30118289103576bab51e170804c271d62f842c7aa892b94dec0936d20
SHA512ebc1e473381bd847bd08017665d026d5d3787ff5105e84216accd1539d705b03bb1a79bb2d4c0cb7156ffef63f4ee743b65046a78552346a0fc92e500347fed6
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Filesize
4.1MB
MD54fa1537147b4599785bd8700b147cb1d
SHA16cb3e5043cbefbbe79b0ec1bc7fea081d9190470
SHA256f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd
SHA512ad955e33bc29781fef58e19c37225c52eaf3e23dca8f1a48a52139dba6afb7cfc7de94bf78e14bf43faedd12f2260ed1e6b4b4d92cb6480b53a8c2bcc8d299d6
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec