Analysis
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max time kernel
117s -
max time network
151s -
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 08:18
Static task
static1
Behavioral task
behavioral1
Sample
ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe
Resource
win10v2004-20240412-en
General
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Target
ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe
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Size
4.2MB
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MD5
3b4f81a6c1cf0d18a0228d9b5797c1d1
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SHA1
a1bbeccb2e61c5fbd1ce35898418a5f95fb1130c
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SHA256
ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302
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SHA512
e7979818b4790f8089cd5c5c7d61664f08e99ea7d809e73bc31f963db2bc67fc24af486a44313b8bc878f7bb569d2b60c841e6e2548c5be98b63a11abf6c50c9
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SSDEEP
98304:KS8Tc81AzKVcNOUNHF6RiNP154spKvDdhObEo7QvVY0ryRAf1Tp7ORu:LEcJzF4UNHqA/dsmoVS4YAf19J
Malware Config
Signatures
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Glupteba payload 16 IoCs
Processes:
resource yara_rule behavioral2/memory/344-2-0x00000000040F0000-0x00000000049DB000-memory.dmp family_glupteba behavioral2/memory/344-3-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/344-53-0x00000000040F0000-0x00000000049DB000-memory.dmp family_glupteba behavioral2/memory/3192-54-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/344-64-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/3192-175-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/440-242-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/440-252-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/440-256-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/440-260-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/440-264-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/440-268-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/440-272-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/440-276-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/440-281-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba behavioral2/memory/440-284-0x0000000000400000-0x0000000001E06000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 4372 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 440 csrss.exe 3472 injector.exe 4600 windefender.exe 1032 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/4600-251-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1032-255-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1032-263-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1032-267-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\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:
ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe -
Drops file in Windows directory 4 IoCs
Processes:
csrss.exeef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exedescription ioc process File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe File created C:\Windows\rss\csrss.exe ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 4304 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 1232 schtasks.exe 3092 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exeef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs 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,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-191 = "Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard 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\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.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\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA 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\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs 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\26\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2432 = "Cuba 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,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.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\26\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.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,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exepowershell.exeef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 1860 powershell.exe 1860 powershell.exe 344 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe 344 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe 2804 powershell.exe 2804 powershell.exe 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe 2580 powershell.exe 2580 powershell.exe 2492 powershell.exe 2492 powershell.exe 2420 powershell.exe 2420 powershell.exe 4644 powershell.exe 4644 powershell.exe 756 powershell.exe 756 powershell.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 440 csrss.exe 440 csrss.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 440 csrss.exe 440 csrss.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 440 csrss.exe 440 csrss.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe 3472 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exeef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 1860 powershell.exe Token: SeDebugPrivilege 344 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Token: SeImpersonatePrivilege 344 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe Token: SeDebugPrivilege 2804 powershell.exe Token: SeDebugPrivilege 2580 powershell.exe Token: SeDebugPrivilege 2492 powershell.exe Token: SeDebugPrivilege 2420 powershell.exe Token: SeDebugPrivilege 4644 powershell.exe Token: SeDebugPrivilege 756 powershell.exe Token: SeSystemEnvironmentPrivilege 440 csrss.exe Token: SeSecurityPrivilege 4304 sc.exe Token: SeSecurityPrivilege 4304 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exeef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 344 wrote to memory of 1860 344 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe powershell.exe PID 344 wrote to memory of 1860 344 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe powershell.exe PID 344 wrote to memory of 1860 344 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe powershell.exe PID 3192 wrote to memory of 2804 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe powershell.exe PID 3192 wrote to memory of 2804 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe powershell.exe PID 3192 wrote to memory of 2804 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe powershell.exe PID 3192 wrote to memory of 1560 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe cmd.exe PID 3192 wrote to memory of 1560 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe cmd.exe PID 1560 wrote to memory of 4372 1560 cmd.exe netsh.exe PID 1560 wrote to memory of 4372 1560 cmd.exe netsh.exe PID 3192 wrote to memory of 2580 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe powershell.exe PID 3192 wrote to memory of 2580 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe powershell.exe PID 3192 wrote to memory of 2580 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe powershell.exe PID 3192 wrote to memory of 2492 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe powershell.exe PID 3192 wrote to memory of 2492 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe powershell.exe PID 3192 wrote to memory of 2492 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe powershell.exe PID 3192 wrote to memory of 440 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe csrss.exe PID 3192 wrote to memory of 440 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe csrss.exe PID 3192 wrote to memory of 440 3192 ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe csrss.exe PID 440 wrote to memory of 2420 440 csrss.exe powershell.exe PID 440 wrote to memory of 2420 440 csrss.exe powershell.exe PID 440 wrote to memory of 2420 440 csrss.exe powershell.exe PID 440 wrote to memory of 4644 440 csrss.exe powershell.exe PID 440 wrote to memory of 4644 440 csrss.exe powershell.exe PID 440 wrote to memory of 4644 440 csrss.exe powershell.exe PID 440 wrote to memory of 756 440 csrss.exe powershell.exe PID 440 wrote to memory of 756 440 csrss.exe powershell.exe PID 440 wrote to memory of 756 440 csrss.exe powershell.exe PID 440 wrote to memory of 3472 440 csrss.exe injector.exe PID 440 wrote to memory of 3472 440 csrss.exe injector.exe PID 4600 wrote to memory of 1560 4600 windefender.exe cmd.exe PID 4600 wrote to memory of 1560 4600 windefender.exe cmd.exe PID 4600 wrote to memory of 1560 4600 windefender.exe cmd.exe PID 1560 wrote to memory of 4304 1560 cmd.exe sc.exe PID 1560 wrote to memory of 4304 1560 cmd.exe sc.exe PID 1560 wrote to memory of 4304 1560 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\ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe"C:\Users\Admin\AppData\Local\Temp\ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:344 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1860
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C:\Users\Admin\AppData\Local\Temp\ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.exe"C:\Users\Admin\AppData\Local\Temp\ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302.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:3192 -
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:2804
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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:1560 -
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:4372
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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:2580
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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:2492
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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:440 -
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:2420
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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:1232
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1332
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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:4644
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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:756
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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:3472
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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:3092
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4600 -
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:1560 -
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:4304
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1032
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD510d4509aa55bb460348d4717fb424411
SHA150791da27116c27f828f9262b1fbd8cb6e17e603
SHA2563a8a6ba3d8a088fdada61d53c463edc21e62727982a4f314ebf38064253ae4eb
SHA512387d51ac6297923a966acc578b76de862ec6bba0fa3082a3815cb039a08c2fce6d256950058c973208592e4b442bc04aa2ebd7bf6fe495558ad5b096ad69692c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d3f359f02e7d7e40aae12dc428125850
SHA12293f8d3a63ea540e161665bd4d5a21e1bcac7ef
SHA2566bc3ec8eee4cb3fea518ccca40c8bda90eec99382243e97a025f99f2be9a5690
SHA5120dd3f8f3e3e74a4b349ca86e295d2a599c4f59ad1774ffc6ad17ce3966b53fde49484f3dcc07e9ac22450a1ef4ad2388c6c76cf1c1cec51b227a225d181bee9c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a5fe1487861ae20ad436915597b723f1
SHA14f7948113e717a1a14e7f11e334652ddb466c693
SHA25683e9f4c446c43f8515d4da70a615d3c78e562bb2a3be39a17168513705fab426
SHA5124a70d87fe3eb7b30898293bca11b159d71e307754f7f2266ed71ea1c782dc808c92c7281a4b377cdfeff7b9386431be1da6b13f093b26ce9693ca07055d152c2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50fde3418cf9cb32f807802a941592a58
SHA12e7e4a83d7afb476baec10651a6bdc45f04c9d11
SHA256d293e9de46e57e7d11b2472836a6f72ac5b5ac6c59cf72ff5c327cbc18ecc37c
SHA51222344a362582b533710f70458305f8479ef2d6f98cf175a82b789013a3f878a372826f724c2db080749f7fadc4962cf8cdefb69472e1854639aae70aafacb273
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5dd0d1c99b6e7a71c0e39cfcb28b0d310
SHA10f7d817d6042efc4d09c76b1b6cef1a407a30b32
SHA256e23c7c7c61c9656a1c77b91bc8686a1cfc7c27dc06428f8178f6f5019fee98cc
SHA512cea4e049b05d7b2f79dc81cac07b238315009de28df1fa79cb77aed5f8ac6761946ba56b10504a36dc6e9a3d4c8786c1e6c9f756a0bae7cbc7d6fdb338df58e5
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Filesize
4.2MB
MD53b4f81a6c1cf0d18a0228d9b5797c1d1
SHA1a1bbeccb2e61c5fbd1ce35898418a5f95fb1130c
SHA256ef70e45cd7609f524ec2a8b4e03c846f637e6fbe04eaa46f6295609ee51f1302
SHA512e7979818b4790f8089cd5c5c7d61664f08e99ea7d809e73bc31f963db2bc67fc24af486a44313b8bc878f7bb569d2b60c841e6e2548c5be98b63a11abf6c50c9
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec