Analysis
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max time kernel
150s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
20-05-2024 04:46
Static task
static1
Behavioral task
behavioral1
Sample
52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe
Resource
win10v2004-20240426-en
General
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Target
52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe
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Size
4.1MB
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MD5
083454626f75d20a114ff31f81af6205
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SHA1
c180bbf198f17f1ef0bff99aaf4af2c7fe259596
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SHA256
52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723
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SHA512
a69c72f527f1ebafae6e4c51ff1213176790851ee3c58794aff5be0d66a5c614e47b4e282228a6528ed8201fde5150255a3fab32ddf853968369760fb86e5bbf
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SSDEEP
98304:fquwTfmIkbquibhaubey8xw4weLmAcL8k4+6XNB3Rebmbqb0hj:QLmIkbquibpii2yAk4+2fEKmbej
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/1568-2-0x0000000002E30000-0x000000000371B000-memory.dmp family_glupteba behavioral2/memory/1568-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1568-51-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1568-52-0x0000000002E30000-0x000000000371B000-memory.dmp family_glupteba behavioral2/memory/3920-121-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3920-198-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2924-205-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3920-206-0x0000000002A20000-0x0000000002E20000-memory.dmp family_glupteba behavioral2/memory/2924-217-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2924-219-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2924-222-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2924-225-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2924-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2924-231-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2924-234-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2924-237-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2924-241-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2924-243-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2924-246-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3708 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 2924 csrss.exe 5080 injector.exe 2880 windefender.exe 2728 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/2880-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2728-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2880-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2728-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2728-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\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\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 File created 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:
52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe -
Drops file in Windows directory 4 IoCs
Processes:
52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.execsrss.exedescription ioc process File opened for modification C:\Windows\rss 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe File created C:\Windows\rss\csrss.exe 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.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 4652 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 2168 powershell.exe 3636 powershell.exe 3928 powershell.exe 4888 powershell.exe 3540 powershell.exe 3976 powershell.exe 1636 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 3104 schtasks.exe 4764 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-622 = "Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-231 = "Hawaiian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.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\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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\2a\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exepowershell.exe52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 3928 powershell.exe 3928 powershell.exe 1568 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe 1568 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe 4888 powershell.exe 4888 powershell.exe 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe 3540 powershell.exe 3540 powershell.exe 3976 powershell.exe 3976 powershell.exe 1636 powershell.exe 1636 powershell.exe 2168 powershell.exe 2168 powershell.exe 3636 powershell.exe 3636 powershell.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 2924 csrss.exe 2924 csrss.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 2924 csrss.exe 2924 csrss.exe 5080 injector.exe 5080 injector.exe 2924 csrss.exe 2924 csrss.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe 5080 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 3928 powershell.exe Token: SeDebugPrivilege 1568 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Token: SeImpersonatePrivilege 1568 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe Token: SeDebugPrivilege 4888 powershell.exe Token: SeDebugPrivilege 3540 powershell.exe Token: SeDebugPrivilege 3976 powershell.exe Token: SeDebugPrivilege 1636 powershell.exe Token: SeDebugPrivilege 2168 powershell.exe Token: SeDebugPrivilege 3636 powershell.exe Token: SeSystemEnvironmentPrivilege 2924 csrss.exe Token: SeSecurityPrivilege 4652 sc.exe Token: SeSecurityPrivilege 4652 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 1568 wrote to memory of 3928 1568 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe powershell.exe PID 1568 wrote to memory of 3928 1568 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe powershell.exe PID 1568 wrote to memory of 3928 1568 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe powershell.exe PID 3920 wrote to memory of 4888 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe powershell.exe PID 3920 wrote to memory of 4888 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe powershell.exe PID 3920 wrote to memory of 4888 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe powershell.exe PID 3920 wrote to memory of 1700 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe cmd.exe PID 3920 wrote to memory of 1700 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe cmd.exe PID 1700 wrote to memory of 3708 1700 cmd.exe netsh.exe PID 1700 wrote to memory of 3708 1700 cmd.exe netsh.exe PID 3920 wrote to memory of 3540 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe powershell.exe PID 3920 wrote to memory of 3540 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe powershell.exe PID 3920 wrote to memory of 3540 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe powershell.exe PID 3920 wrote to memory of 3976 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe powershell.exe PID 3920 wrote to memory of 3976 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe powershell.exe PID 3920 wrote to memory of 3976 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe powershell.exe PID 3920 wrote to memory of 2924 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe csrss.exe PID 3920 wrote to memory of 2924 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe csrss.exe PID 3920 wrote to memory of 2924 3920 52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe csrss.exe PID 2924 wrote to memory of 1636 2924 csrss.exe powershell.exe PID 2924 wrote to memory of 1636 2924 csrss.exe powershell.exe PID 2924 wrote to memory of 1636 2924 csrss.exe powershell.exe PID 2924 wrote to memory of 2168 2924 csrss.exe powershell.exe PID 2924 wrote to memory of 2168 2924 csrss.exe powershell.exe PID 2924 wrote to memory of 2168 2924 csrss.exe powershell.exe PID 2924 wrote to memory of 3636 2924 csrss.exe powershell.exe PID 2924 wrote to memory of 3636 2924 csrss.exe powershell.exe PID 2924 wrote to memory of 3636 2924 csrss.exe powershell.exe PID 2924 wrote to memory of 5080 2924 csrss.exe injector.exe PID 2924 wrote to memory of 5080 2924 csrss.exe injector.exe PID 2880 wrote to memory of 4740 2880 windefender.exe cmd.exe PID 2880 wrote to memory of 4740 2880 windefender.exe cmd.exe PID 2880 wrote to memory of 4740 2880 windefender.exe cmd.exe PID 4740 wrote to memory of 4652 4740 cmd.exe sc.exe PID 4740 wrote to memory of 4652 4740 cmd.exe sc.exe PID 4740 wrote to memory of 4652 4740 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\52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe"C:\Users\Admin\AppData\Local\Temp\52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1568 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3928 -
C:\Users\Admin\AppData\Local\Temp\52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.exe"C:\Users\Admin\AppData\Local\Temp\52291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723.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:3920 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4888 -
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:1700 -
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:3708 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3540 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3976 -
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:2924 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1636 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3104 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:5068
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2168 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3636 -
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:5080 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4764 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2880 -
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:4740 -
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:4652
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2728
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
MD50a981231d10827e7f71a8f8219965205
SHA1cd207a393f203988dbf29311c3d20e34bf2fcc01
SHA256d0f9d9775381334843bc3b19d51ecb13ae359849a510aeb9f51be2496babd3cf
SHA512bc1afd5d40b2ac478a0b14e323200fa7b1da5531a8b7d94d676eb308c653759828d91ce0414fc07f457a5a654d25334229d1891cc25abc86681e5eb0cc49733c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5648e0d3e130d0866e33fd5236a41a7db
SHA1e26dc05fa7c2ba20cec8ef8c0d9318805a4e99e0
SHA2563589cbe3d0488f5784a93ac87b916da4b67759bd14099db295ec88760b049a27
SHA51282342f6c45e95ce85ab0c0465382a2d6347c37554531321c72862d016d33b50be3f1c49cf547c1f5a41e4b9c615e4d71c1a5dea4e31f0c6d4a368daa38f7676d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5face3902aa6be0a50be3289b16e0f544
SHA1522b8aa418d3f17802e28cdb03f0779b3df84475
SHA25676c17dfbff263b55c0260ada3c346d8b1d0143af3dc89a28b26123ee49046df7
SHA512a54cff2431c131e0b16bdfa5293e158af842acbaeaa78d3c1a367741683c5ff5aa5de21b378b147001a632402062efc81993ef632ec6f82038e60c29cfa08349
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f9687a484541df77ec2804e6bbc0361b
SHA10f16ce200181fb8ce94edfa894f8f1190a6f6e0a
SHA256be6f84da259d341bbc91552e82b107e3152a52d70b57ca9e327d87bce8fe360c
SHA51267d19d189aad4980a38dd9db301f803326fa66c23bb5f0350a267fb26d27f8cea5efb2e683a065375dea24e2d8c3903fc31c5ac89a67783ca76031673d03c6b4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD571a083c0825984da47b95da79b07d41a
SHA1dcf729936340c526c2103feec2c49dc7ec6be5d2
SHA256366811bc6540e0e19268cdbc8f169d89d6b63a2c5b549d481e2ee2403802013a
SHA51299afedea968008c4f5dd9f3af170b1878a807e5aea1ea3c275550950aed2f2c899b96b99cb6e5f1a98c3ddad3a17ec34e6bc9b593af3a74791d49725ee8ca80d
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Filesize
4.1MB
MD5083454626f75d20a114ff31f81af6205
SHA1c180bbf198f17f1ef0bff99aaf4af2c7fe259596
SHA25652291c6889f66d2c973e72e48eb62b7ac5855d396e9e29c54de1a25811b8c723
SHA512a69c72f527f1ebafae6e4c51ff1213176790851ee3c58794aff5be0d66a5c614e47b4e282228a6528ed8201fde5150255a3fab32ddf853968369760fb86e5bbf
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec