Analysis
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max time kernel
150s -
max time network
150s -
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 08:32
Static task
static1
Behavioral task
behavioral1
Sample
d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe
Resource
win10v2004-20240412-en
General
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Target
d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe
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Size
4.2MB
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MD5
c0599080d46c896e58766d7eb9a89653
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SHA1
07d5691a662df1cd381b6934fc9eddc0d7ab8f01
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SHA256
d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c
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SHA512
d92ae4dcd008a189f53790d85bc05168e05fb71609ee3bbbe4cdd8810acb58bec376a2d1ecd2148947063529c48fc065d3949b683e54a4db88666d82963462d3
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SSDEEP
98304:qS8Tc81AzKVcNOUNHF6RiNP154spKvDdhObEo7QvVY0ryRAf1Tp7ORq:rEcJzF4UNHqA/dsmoVS4YAf19p
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/1520-2-0x00000000040C0000-0x00000000049AB000-memory.dmp family_glupteba behavioral2/memory/1520-3-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3352-44-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1520-59-0x00000000040C0000-0x00000000049AB000-memory.dmp family_glupteba behavioral2/memory/1520-71-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3352-143-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1748-235-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1748-245-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1748-247-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1748-250-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1748-253-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1748-256-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1748-260-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1748-262-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1748-265-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1748-268-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1748-271-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1748-274-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/1748-278-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 1516 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 1748 csrss.exe 1640 injector.exe 2088 windefender.exe 4632 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/2088-244-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4632-248-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4632-254-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\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 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 -
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:
d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe -
Drops file in Windows directory 4 IoCs
Processes:
d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.execsrss.exedescription ioc process File opened for modification C:\Windows\rss d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe File created C:\Windows\rss\csrss.exe d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.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 4636 sc.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 920 1012 WerFault.exe 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 4216 schtasks.exe 1396 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exed5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exepowershell.exepowershell.exepowershell.exepowershell.exewindefender.exepowershell.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.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\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs 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\26\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates 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\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2772 = "Omsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-282 = "Central Europe 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\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.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\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates 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\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar 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\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-572 = "China Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-631 = "Tokyo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates 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,-2411 = "Marquesas Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exed5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exepowershell.exed5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 1012 powershell.exe 1012 powershell.exe 1520 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe 1520 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe 2868 powershell.exe 2868 powershell.exe 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe 2504 powershell.exe 2504 powershell.exe 2912 powershell.exe 2912 powershell.exe 248 powershell.exe 248 powershell.exe 392 powershell.exe 392 powershell.exe 2824 powershell.exe 2824 powershell.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1748 csrss.exe 1748 csrss.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1748 csrss.exe 1748 csrss.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1748 csrss.exe 1748 csrss.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe 1640 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exed5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 1012 powershell.exe Token: SeDebugPrivilege 1520 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Token: SeImpersonatePrivilege 1520 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe Token: SeDebugPrivilege 2868 powershell.exe Token: SeDebugPrivilege 2504 powershell.exe Token: SeDebugPrivilege 2912 powershell.exe Token: SeDebugPrivilege 248 powershell.exe Token: SeDebugPrivilege 392 powershell.exe Token: SeDebugPrivilege 2824 powershell.exe Token: SeSystemEnvironmentPrivilege 1748 csrss.exe Token: SeSecurityPrivilege 4636 sc.exe Token: SeSecurityPrivilege 4636 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exed5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 1520 wrote to memory of 1012 1520 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe powershell.exe PID 1520 wrote to memory of 1012 1520 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe powershell.exe PID 1520 wrote to memory of 1012 1520 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe powershell.exe PID 3352 wrote to memory of 2868 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe powershell.exe PID 3352 wrote to memory of 2868 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe powershell.exe PID 3352 wrote to memory of 2868 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe powershell.exe PID 3352 wrote to memory of 3788 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe cmd.exe PID 3352 wrote to memory of 3788 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe cmd.exe PID 3788 wrote to memory of 1516 3788 cmd.exe netsh.exe PID 3788 wrote to memory of 1516 3788 cmd.exe netsh.exe PID 3352 wrote to memory of 2504 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe powershell.exe PID 3352 wrote to memory of 2504 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe powershell.exe PID 3352 wrote to memory of 2504 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe powershell.exe PID 3352 wrote to memory of 2912 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe powershell.exe PID 3352 wrote to memory of 2912 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe powershell.exe PID 3352 wrote to memory of 2912 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe powershell.exe PID 3352 wrote to memory of 1748 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe csrss.exe PID 3352 wrote to memory of 1748 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe csrss.exe PID 3352 wrote to memory of 1748 3352 d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe csrss.exe PID 1748 wrote to memory of 248 1748 csrss.exe powershell.exe PID 1748 wrote to memory of 248 1748 csrss.exe powershell.exe PID 1748 wrote to memory of 248 1748 csrss.exe powershell.exe PID 1748 wrote to memory of 392 1748 csrss.exe powershell.exe PID 1748 wrote to memory of 392 1748 csrss.exe powershell.exe PID 1748 wrote to memory of 392 1748 csrss.exe powershell.exe PID 1748 wrote to memory of 2824 1748 csrss.exe powershell.exe PID 1748 wrote to memory of 2824 1748 csrss.exe powershell.exe PID 1748 wrote to memory of 2824 1748 csrss.exe powershell.exe PID 1748 wrote to memory of 1640 1748 csrss.exe injector.exe PID 1748 wrote to memory of 1640 1748 csrss.exe injector.exe PID 2088 wrote to memory of 3104 2088 windefender.exe cmd.exe PID 2088 wrote to memory of 3104 2088 windefender.exe cmd.exe PID 2088 wrote to memory of 3104 2088 windefender.exe cmd.exe PID 3104 wrote to memory of 4636 3104 cmd.exe sc.exe PID 3104 wrote to memory of 4636 3104 cmd.exe sc.exe PID 3104 wrote to memory of 4636 3104 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\d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe"C:\Users\Admin\AppData\Local\Temp\d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1520 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1012 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1012 -s 24123⤵
- Program crash
PID:920
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C:\Users\Admin\AppData\Local\Temp\d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.exe"C:\Users\Admin\AppData\Local\Temp\d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c.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:3352 -
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:2868
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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:3788 -
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:1516
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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:2504
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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:2912
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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:1748 -
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:248
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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:4216
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:920
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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:392
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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:2824
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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:1640
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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:1396
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2088 -
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:3104 -
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:4636
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1012 -ip 10121⤵PID:2056
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4632
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
MD5a991fe66dc722fc65f744a139f8cd79f
SHA163b5c93949a29f5fa68e3a141da945e031ae1cb9
SHA256e298f374959213e936607c31809bec89f4b3bde4ddcc9bdb3e22253fe7a94cd9
SHA5121285d71f62abddcd47b6ab2d45177ce2b16098898703323ead151d55e81224fef0e998e572e69835556e8ea308057c7170d47da3bca82f918e251ec815274706
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5461537d1f271a8d885ec5d32d0f64d98
SHA1690ab2fad5e9d45bb4bb3a054c7d7f3b8433811e
SHA25612f8798f9125b6159398f13bcce30d9918a020dfb94bae6b5452b2ea2a7a1925
SHA51291d2428ab46b4306568908d04567c5bd6a74385eb8720cb97bce155c1a256ff0e3a6cec8dc9cd7d5b2e348e8f0f528629716bf4f43253020bf445f98567d4017
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5945f1e4e65f10718af075a194edbc74d
SHA125a4f639e508d3ee12c97748935affc946d32dd3
SHA25685385b91bd3638fac5dc8d4b04111984799061d22e5df0d887e8e89f22d81092
SHA512151d0af523064408391da484dfc61988d036ca5c85084ccaabe2325f30a44a0cdaa0a7e31bc652d5fcb7a319a8ce2e5911d813ba4aa455103722e9d585cdfd05
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50648cc2742f61612a6968560d2716027
SHA15dd3fded921ef547ca6820cc0a3ca1b7ea3dca83
SHA256ef04e21299860375542561803b074708c55516d979cd8a091b7ed827f73b6f39
SHA5129ad483ce7952c6baf18e78ef434a12d2721c87e83daffa529276b4057bd46ec6f8133cd22c228cbb672ca06062dbd4829d92dfc3390ef6f9d249fe62accf4979
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5af8842bf0b984efa05d93de81393fdf1
SHA1fc9caa8d5f63fa76e06e85188e74163104e9e427
SHA256345be0972fbcb6da9a87e95920735b9e7491923c13db98f761545c060721c6d1
SHA512990906cd9b2c64dd21555f19ac630bf410066623de2bad8bdf6a42a0587e9b582643c92a2123a08877615a35432ee7b306c77ceee3f4eec52e8a755c6c0e7ea3
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Filesize
4.2MB
MD5c0599080d46c896e58766d7eb9a89653
SHA107d5691a662df1cd381b6934fc9eddc0d7ab8f01
SHA256d5e3c64e1a710143cf08e55d5fea271b6adc1f4ac7da52f8c9ce896c33093b0c
SHA512d92ae4dcd008a189f53790d85bc05168e05fb71609ee3bbbe4cdd8810acb58bec376a2d1ecd2148947063529c48fc065d3949b683e54a4db88666d82963462d3
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec