Analysis
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max time kernel
147s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 20:39
Static task
static1
Behavioral task
behavioral1
Sample
cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe
Resource
win10v2004-20240508-en
General
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Target
cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe
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Size
4.1MB
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MD5
7134d87707fc1a4bed3c00c2cee20733
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SHA1
925c0989edb35d7674a016f8286b368c316bfc13
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SHA256
cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a
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SHA512
cdaa52bc160c4ae80b8069cfc91cd80bc7dcd3a2ddb003d235b98665f42d485bb9c2f29822dba600f0939cfacbd44a68f4414a00f8c840c3e35586a84d09acbc
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SSDEEP
98304:D7sgfTqZm7fywQIpjGUn+cmloZHued8miXbTsPufBvN8:DzgmDywQg+foZ8mw6SC
Malware Config
Signatures
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Glupteba payload 17 IoCs
Processes:
resource yara_rule behavioral2/memory/4688-2-0x0000000004A60000-0x000000000534B000-memory.dmp family_glupteba behavioral2/memory/4688-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4688-120-0x0000000004A60000-0x000000000534B000-memory.dmp family_glupteba behavioral2/memory/4688-118-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4688-194-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1020-193-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3688-202-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3688-214-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3688-218-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3688-222-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3688-226-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3688-230-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3688-234-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3688-238-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3688-242-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3688-246-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3688-250-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2840 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3688 csrss.exe 904 injector.exe 2500 windefender.exe 3872 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002aa1a-206.dat upx behavioral2/memory/2500-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2500-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3872-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3872-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3872-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\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 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:
cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe -
Drops file in Windows directory 4 IoCs
Processes:
cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe File created C:\Windows\rss\csrss.exe cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.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 3576 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 1664 powershell.exe 1960 powershell.exe 1660 powershell.exe 3736 powershell.exe 3452 powershell.exe 1776 powershell.exe 2020 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 1144 schtasks.exe 1528 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exewindefender.execf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.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,-1971 = "Belarus Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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,-572 = "China Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.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,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-161 = "Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs 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,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.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,-272 = "Greenwich Standard Time" cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs 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\@tzres.dll,-71 = "Newfoundland 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 Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.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,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.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,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.execf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exepowershell.execf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 1960 powershell.exe 1960 powershell.exe 4688 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 4688 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 1660 powershell.exe 1660 powershell.exe 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 3736 powershell.exe 3736 powershell.exe 3452 powershell.exe 3452 powershell.exe 1776 powershell.exe 1776 powershell.exe 2020 powershell.exe 2020 powershell.exe 1664 powershell.exe 1664 powershell.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 3688 csrss.exe 904 injector.exe 3688 csrss.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 3688 csrss.exe 3688 csrss.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 3688 csrss.exe 3688 csrss.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe 904 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.execf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 1960 powershell.exe Token: SeDebugPrivilege 4688 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe Token: SeImpersonatePrivilege 4688 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe Token: SeDebugPrivilege 1660 powershell.exe Token: SeDebugPrivilege 3736 powershell.exe Token: SeDebugPrivilege 3452 powershell.exe Token: SeDebugPrivilege 1776 powershell.exe Token: SeDebugPrivilege 2020 powershell.exe Token: SeDebugPrivilege 1664 powershell.exe Token: SeSystemEnvironmentPrivilege 3688 csrss.exe Token: SeSecurityPrivilege 3576 sc.exe Token: SeSecurityPrivilege 3576 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.execf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 4688 wrote to memory of 1960 4688 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 81 PID 4688 wrote to memory of 1960 4688 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 81 PID 4688 wrote to memory of 1960 4688 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 81 PID 1020 wrote to memory of 1660 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 87 PID 1020 wrote to memory of 1660 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 87 PID 1020 wrote to memory of 1660 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 87 PID 1020 wrote to memory of 2180 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 89 PID 1020 wrote to memory of 2180 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 89 PID 2180 wrote to memory of 2840 2180 cmd.exe 91 PID 2180 wrote to memory of 2840 2180 cmd.exe 91 PID 1020 wrote to memory of 3736 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 92 PID 1020 wrote to memory of 3736 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 92 PID 1020 wrote to memory of 3736 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 92 PID 1020 wrote to memory of 3452 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 94 PID 1020 wrote to memory of 3452 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 94 PID 1020 wrote to memory of 3452 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 94 PID 1020 wrote to memory of 3688 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 96 PID 1020 wrote to memory of 3688 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 96 PID 1020 wrote to memory of 3688 1020 cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe 96 PID 3688 wrote to memory of 1776 3688 csrss.exe 97 PID 3688 wrote to memory of 1776 3688 csrss.exe 97 PID 3688 wrote to memory of 1776 3688 csrss.exe 97 PID 3688 wrote to memory of 2020 3688 csrss.exe 103 PID 3688 wrote to memory of 2020 3688 csrss.exe 103 PID 3688 wrote to memory of 2020 3688 csrss.exe 103 PID 3688 wrote to memory of 1664 3688 csrss.exe 105 PID 3688 wrote to memory of 1664 3688 csrss.exe 105 PID 3688 wrote to memory of 1664 3688 csrss.exe 105 PID 3688 wrote to memory of 904 3688 csrss.exe 107 PID 3688 wrote to memory of 904 3688 csrss.exe 107 PID 2500 wrote to memory of 1196 2500 windefender.exe 113 PID 2500 wrote to memory of 1196 2500 windefender.exe 113 PID 2500 wrote to memory of 1196 2500 windefender.exe 113 PID 1196 wrote to memory of 3576 1196 cmd.exe 114 PID 1196 wrote to memory of 3576 1196 cmd.exe 114 PID 1196 wrote to memory of 3576 1196 cmd.exe 114 -
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\cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe"C:\Users\Admin\AppData\Local\Temp\cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4688 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1960
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C:\Users\Admin\AppData\Local\Temp\cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.exe"C:\Users\Admin\AppData\Local\Temp\cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a.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:1020 -
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:1660
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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:2180 -
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:2840
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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:3736
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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:3452
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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:3688 -
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:1776
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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:1144
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:428
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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:2020
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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:1664
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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:904
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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:1528
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2500 -
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:1196 -
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:3576
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3872
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD557db34c8dfbf4c3ca87d512d67fe0a8a
SHA146303689c45dceee91333ebf599e6e9334329a49
SHA25617c7e6fecb268c77e53433af96f8a61ed7d559be56fb28c48474b3dcba6a3314
SHA5129c7c12eab923184aca616d721999f5abe46f8014d8dfbfd796868618518ca969484e15c01412de6697b67e3425d5e137c013b76c8121a325fb28e4cce5ccfd17
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ae9f444bff13f646b6699e7a4ec90aea
SHA1a8cb97d91ec28565d70bdc678185eee4baf911c4
SHA256e62857eaa22038be95167ff968efda842ef0841430c341351af1088527a87ee8
SHA512927be8d9f81649f01520d952bfe2df03cccc332ee561df80341ea8b810aaeb77f3982eba3b300e0b0c7274b0eb5db3a375350163656854b1072e98d4357a00b8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54d88ee646f2c274182b53d44d75324c6
SHA1ab7a56841350c027bfd923f56796a081a2fc9645
SHA2564b8c8b8f00946feecae83bba9837acbe40d39cb16a1917565eddea1db73ebedc
SHA512a776f2170e351044a5ad78c545b231b9e66893d40a17ac6816a99d92043d73e11cbcd45b2a76b878d4c2e04451a48b3b5e129e564031ed611bc07ae171e40712
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5be278a49b57a23dcaed1000faf384265
SHA1c86273dd4b35c8f15326abd85f2d2271c721c1b8
SHA256edf737699adfa8a1404463e8d4900a85f913b886ddce48bde1b2192f7e4d362e
SHA51279d5c139515d6b322609fa15de812a29481dace0186120b28b413eb2cff6e6ad78da414ba362e3441d594868a8391baf5b161887b7bdf0d227b5b7f6c88b851a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51a7b913612dd8462deed187d68cb4734
SHA1d4e820162e7f35c8e84312af7825eb61d9b893ec
SHA2564a07155b1b5c7a04cccf8db798b3b7235403dba338a54b4510c0b7c8aff6cc7a
SHA512d470dd8f5f6dbb48a288350df1064c5cd109d0aab2ad1f9a3b24610bf2664b142b61d1ccbe04500189d0b6a3089d34cc1f622afba2607aafdbaa56a0fbf29352
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Filesize
4.1MB
MD57134d87707fc1a4bed3c00c2cee20733
SHA1925c0989edb35d7674a016f8286b368c316bfc13
SHA256cf6b31c1fd7ea0cf6a2cdffede2cd71c0ee0cf9e0dedfc9b7f48ce7260774a0a
SHA512cdaa52bc160c4ae80b8069cfc91cd80bc7dcd3a2ddb003d235b98665f42d485bb9c2f29822dba600f0939cfacbd44a68f4414a00f8c840c3e35586a84d09acbc
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec