Analysis
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max time kernel
150s -
max time network
153s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
20-04-2024 15:24
Static task
static1
Behavioral task
behavioral1
Sample
f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe
Resource
win10v2004-20240412-en
General
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Target
f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe
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Size
4.2MB
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MD5
f5e0a97cb279e2d3f9024428406664b3
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SHA1
651fea6777557a571a51f378a5321da8a874ec13
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SHA256
f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347
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SHA512
222b0e1b202ff62a9914b7284795542423118ffe84a1a0c4caa12a97c8a6dc951ded0b97362238d9094eaa6ec018eaa63a07bcdf81ee1b4abd068b0d8dceef93
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SSDEEP
49152:BKOdvREmi8iTwPpeYBnAu4QJI7RESGN2UNQnUyHdr+bW0USBgrsqhT/DWSjgq2SO:oOLEfT6eYBhfhWV+b2vbWNq2SbuhR/
Malware Config
Signatures
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Glupteba payload 20 IoCs
Processes:
resource yara_rule behavioral2/memory/1740-2-0x0000000004070000-0x000000000495B000-memory.dmp family_glupteba behavioral2/memory/1740-3-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1936-53-0x0000000004020000-0x000000000490B000-memory.dmp family_glupteba behavioral2/memory/1936-55-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1740-56-0x0000000004070000-0x000000000495B000-memory.dmp family_glupteba behavioral2/memory/1740-57-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1936-180-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2060-246-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2060-257-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2060-260-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2060-264-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2060-268-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2060-272-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2060-276-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2060-280-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2060-284-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2060-288-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2060-293-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2060-296-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2060-300-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 5000 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 2060 csrss.exe 5060 injector.exe 1276 windefender.exe 3100 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/1276-256-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3100-261-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3100-269-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\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:
f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe -
Drops file in Windows directory 4 IoCs
Processes:
f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.execsrss.exedescription ioc process File opened for modification C:\Windows\rss f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe File created C:\Windows\rss\csrss.exe f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.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 1164 sc.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 3880 schtasks.exe 1944 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exef5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-932 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2181 = "Astrakhan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.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\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\26\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-52 = "Greenland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exef5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exepowershell.exef5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4276 powershell.exe 4276 powershell.exe 1740 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe 1740 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe 1292 powershell.exe 1292 powershell.exe 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe 3432 powershell.exe 3432 powershell.exe 4904 powershell.exe 4904 powershell.exe 2668 powershell.exe 2668 powershell.exe 3444 powershell.exe 3444 powershell.exe 3724 powershell.exe 3724 powershell.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 2060 csrss.exe 2060 csrss.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 2060 csrss.exe 2060 csrss.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 2060 csrss.exe 2060 csrss.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe 5060 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exef5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 4276 powershell.exe Token: SeDebugPrivilege 1740 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Token: SeImpersonatePrivilege 1740 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe Token: SeDebugPrivilege 1292 powershell.exe Token: SeDebugPrivilege 3432 powershell.exe Token: SeDebugPrivilege 4904 powershell.exe Token: SeDebugPrivilege 2668 powershell.exe Token: SeDebugPrivilege 3444 powershell.exe Token: SeDebugPrivilege 3724 powershell.exe Token: SeSystemEnvironmentPrivilege 2060 csrss.exe Token: SeSecurityPrivilege 1164 sc.exe Token: SeSecurityPrivilege 1164 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exef5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 1740 wrote to memory of 4276 1740 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe powershell.exe PID 1740 wrote to memory of 4276 1740 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe powershell.exe PID 1740 wrote to memory of 4276 1740 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe powershell.exe PID 1936 wrote to memory of 1292 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe powershell.exe PID 1936 wrote to memory of 1292 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe powershell.exe PID 1936 wrote to memory of 1292 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe powershell.exe PID 1936 wrote to memory of 3324 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe cmd.exe PID 1936 wrote to memory of 3324 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe cmd.exe PID 3324 wrote to memory of 5000 3324 cmd.exe netsh.exe PID 3324 wrote to memory of 5000 3324 cmd.exe netsh.exe PID 1936 wrote to memory of 3432 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe powershell.exe PID 1936 wrote to memory of 3432 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe powershell.exe PID 1936 wrote to memory of 3432 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe powershell.exe PID 1936 wrote to memory of 4904 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe powershell.exe PID 1936 wrote to memory of 4904 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe powershell.exe PID 1936 wrote to memory of 4904 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe powershell.exe PID 1936 wrote to memory of 2060 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe csrss.exe PID 1936 wrote to memory of 2060 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe csrss.exe PID 1936 wrote to memory of 2060 1936 f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe csrss.exe PID 2060 wrote to memory of 2668 2060 csrss.exe powershell.exe PID 2060 wrote to memory of 2668 2060 csrss.exe powershell.exe PID 2060 wrote to memory of 2668 2060 csrss.exe powershell.exe PID 2060 wrote to memory of 3444 2060 csrss.exe powershell.exe PID 2060 wrote to memory of 3444 2060 csrss.exe powershell.exe PID 2060 wrote to memory of 3444 2060 csrss.exe powershell.exe PID 2060 wrote to memory of 3724 2060 csrss.exe powershell.exe PID 2060 wrote to memory of 3724 2060 csrss.exe powershell.exe PID 2060 wrote to memory of 3724 2060 csrss.exe powershell.exe PID 2060 wrote to memory of 5060 2060 csrss.exe injector.exe PID 2060 wrote to memory of 5060 2060 csrss.exe injector.exe PID 1276 wrote to memory of 4856 1276 windefender.exe cmd.exe PID 1276 wrote to memory of 4856 1276 windefender.exe cmd.exe PID 1276 wrote to memory of 4856 1276 windefender.exe cmd.exe PID 4856 wrote to memory of 1164 4856 cmd.exe sc.exe PID 4856 wrote to memory of 1164 4856 cmd.exe sc.exe PID 4856 wrote to memory of 1164 4856 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\f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe"C:\Users\Admin\AppData\Local\Temp\f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1740 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4276
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C:\Users\Admin\AppData\Local\Temp\f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.exe"C:\Users\Admin\AppData\Local\Temp\f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347.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:1936 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1292
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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:3324 -
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:5000
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3432
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4904
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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:2060 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2668
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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:3880
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3636
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3444
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3724
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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:5060
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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:1944
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1276 -
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:4856 -
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:1164
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3100
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
MD576af40a4d56fe1495e2556a0dfd7f53d
SHA142c1cebafa4cb95f3c00e1a20d479e8123b285e3
SHA25662249624cf817b0082b6d62c78666c9c2756f0383f39ba585ed7348f08f8e1e3
SHA512ad1775b12cf3e44d0dc061e7eaa616633a5ac6893821db8c8ec2769a1c32f27730f8b0af3e8e994e32c3aaec0dcfc4b0c07af506c1bc3a8dc231f9d3840fad2d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b2e2cc83c8e2c68cfa365e0f18ccdf51
SHA19415fbf44c37b660ef7aa9268745aa59002925f9
SHA2563e3508e2381731a4b734b902e840aa42b73e90f2ff43a9059f48ecc31fc38d84
SHA5126dc303ff6b619b2b373c29bc50d75a8da68a1bac3d87fadd58aa18e3c96bde74a683dcbc81571cdcc657be755c9dc49d5e52d1e8494ab3408361294b793c77be
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5030cbfcadee2a25b702fc0db2a81815f
SHA14db3bffba81e2a2c5133b01e426c86d0be39a486
SHA256448207a1c7ccb9f975c456cb3dc989282a22e951747394b0779be4c43c13a5f0
SHA512006288726540b3afb31d02c966c27f6240ce319fda392b3efe148934f698a34556e357a911b76e7a61f105799f52f87f9a66b114f121d25d8cdbee557e2ec1c0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59715a4e8f57a709aa46eb308e2bd2393
SHA127eecaaca94a56a298121be736fa97aaa854e66c
SHA25693bf9f144f0fbcaa344907825fdc3947bf09a727ef14259073d82e062c7eac7a
SHA5122b3bcbc076274f14f370eb46f6bd4d976c30963c707b556e66142ed3d9af870c549415acfa61672f7c4ece43246384c2ed606a2c502af7e8cfa7d4484debbbd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD590278a073d4ad3e7ef025de01dd311d1
SHA1d158c2c91028b41c95f0ac535f0816999aa4914a
SHA256f0018b6933cc3f5689b175bd09d63192fa5663a37a6fc1108ce3489c77dfec9a
SHA512953f436421e9ec632f74eaedafe073acc4d860bb9b74ed449b9f254551e7baadab4d237ee7f9fc1aed0ad186082df2df5b35679cc7baebd86be7b797cb5def4f
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Filesize
4.2MB
MD5f5e0a97cb279e2d3f9024428406664b3
SHA1651fea6777557a571a51f378a5321da8a874ec13
SHA256f5a629fa4c42d162d25f0b7076cceb81c98a90b4090c6cc7b8101a3f7ef79347
SHA512222b0e1b202ff62a9914b7284795542423118ffe84a1a0c4caa12a97c8a6dc951ded0b97362238d9094eaa6ec018eaa63a07bcdf81ee1b4abd068b0d8dceef93
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec