Analysis
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max time kernel
149s -
max time network
146s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
16-05-2024 10:01
Static task
static1
Behavioral task
behavioral1
Sample
f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe
Resource
win10v2004-20240426-en
General
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Target
f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe
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Size
4.1MB
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MD5
b45ca7444ee1d740f88b773be17f146b
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SHA1
166b898e19710cf5cb14604858335eacd9593bad
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SHA256
f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28
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SHA512
4ff9e3f5162f4dc2aa5f6732c8f0e54257265eb7f84277fca3a671c63cbcf9a2f7c6a701c910e0b80eb7c3e2ce584cc30e53aaa188c1b0a8a25edd2cff7fdf89
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SSDEEP
98304:VH49zrfgobu9aDMWAg4dPDb/NQHvakIF/A8L3rqLZk5t2qZ3qL2LAZ5j:8r7OagDbOPW/F2k5tRZaLrZ
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/3692-2-0x0000000002E20000-0x000000000370B000-memory.dmp family_glupteba behavioral2/memory/3692-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3692-75-0x0000000002E20000-0x000000000370B000-memory.dmp family_glupteba behavioral2/memory/3692-74-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3136-121-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3136-172-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1724-195-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1724-208-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1724-216-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1724-220-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1724-224-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1724-228-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1724-232-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1724-236-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1724-240-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1724-244-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1724-248-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1724-252-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 1960 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 1724 csrss.exe 1444 injector.exe 1544 windefender.exe 3596 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x001a00000002ab58-206.dat upx behavioral2/memory/1544-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3596-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1544-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3596-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3596-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\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 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 -
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:
f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe -
Drops file in Windows directory 4 IoCs
Processes:
f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe File created C:\Windows\rss\csrss.exe f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.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 3192 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4344 powershell.exe 2940 powershell.exe 2280 powershell.exe 4504 powershell.exe 4680 powershell.exe 4392 powershell.exe 4756 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 544 schtasks.exe 3460 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exepowershell.exewindefender.exepowershell.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,-892 = "Morocco Standard Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.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\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-651 = "AUS Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-722 = "Central Pacific Standard Time" windefender.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\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.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\2a\52C64B7E\@tzres.dll,-441 = "Arabian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.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\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exef1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exepowershell.exef1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4756 powershell.exe 4756 powershell.exe 3692 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 3692 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 4344 powershell.exe 4344 powershell.exe 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 2940 powershell.exe 2940 powershell.exe 2280 powershell.exe 2280 powershell.exe 4504 powershell.exe 4504 powershell.exe 4680 powershell.exe 4680 powershell.exe 4392 powershell.exe 4392 powershell.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1724 csrss.exe 1724 csrss.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1724 csrss.exe 1724 csrss.exe 1444 injector.exe 1444 injector.exe 1724 csrss.exe 1724 csrss.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe 1444 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exef1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4756 powershell.exe Token: SeDebugPrivilege 3692 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Token: SeImpersonatePrivilege 3692 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe Token: SeDebugPrivilege 4344 powershell.exe Token: SeDebugPrivilege 2940 powershell.exe Token: SeDebugPrivilege 2280 powershell.exe Token: SeDebugPrivilege 4504 powershell.exe Token: SeDebugPrivilege 4680 powershell.exe Token: SeDebugPrivilege 4392 powershell.exe Token: SeSystemEnvironmentPrivilege 1724 csrss.exe Token: SeSecurityPrivilege 3192 sc.exe Token: SeSecurityPrivilege 3192 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exef1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 3692 wrote to memory of 4756 3692 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 82 PID 3692 wrote to memory of 4756 3692 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 82 PID 3692 wrote to memory of 4756 3692 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 82 PID 3136 wrote to memory of 4344 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 87 PID 3136 wrote to memory of 4344 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 87 PID 3136 wrote to memory of 4344 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 87 PID 3136 wrote to memory of 3460 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 89 PID 3136 wrote to memory of 3460 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 89 PID 3460 wrote to memory of 1960 3460 cmd.exe 91 PID 3460 wrote to memory of 1960 3460 cmd.exe 91 PID 3136 wrote to memory of 2940 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 92 PID 3136 wrote to memory of 2940 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 92 PID 3136 wrote to memory of 2940 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 92 PID 3136 wrote to memory of 2280 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 94 PID 3136 wrote to memory of 2280 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 94 PID 3136 wrote to memory of 2280 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 94 PID 3136 wrote to memory of 1724 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 96 PID 3136 wrote to memory of 1724 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 96 PID 3136 wrote to memory of 1724 3136 f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe 96 PID 1724 wrote to memory of 4504 1724 csrss.exe 97 PID 1724 wrote to memory of 4504 1724 csrss.exe 97 PID 1724 wrote to memory of 4504 1724 csrss.exe 97 PID 1724 wrote to memory of 4680 1724 csrss.exe 103 PID 1724 wrote to memory of 4680 1724 csrss.exe 103 PID 1724 wrote to memory of 4680 1724 csrss.exe 103 PID 1724 wrote to memory of 4392 1724 csrss.exe 105 PID 1724 wrote to memory of 4392 1724 csrss.exe 105 PID 1724 wrote to memory of 4392 1724 csrss.exe 105 PID 1724 wrote to memory of 1444 1724 csrss.exe 107 PID 1724 wrote to memory of 1444 1724 csrss.exe 107 PID 1544 wrote to memory of 3392 1544 windefender.exe 113 PID 1544 wrote to memory of 3392 1544 windefender.exe 113 PID 1544 wrote to memory of 3392 1544 windefender.exe 113 PID 3392 wrote to memory of 3192 3392 cmd.exe 114 PID 3392 wrote to memory of 3192 3392 cmd.exe 114 PID 3392 wrote to memory of 3192 3392 cmd.exe 114 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe"C:\Users\Admin\AppData\Local\Temp\f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3692 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4756
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C:\Users\Admin\AppData\Local\Temp\f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.exe"C:\Users\Admin\AppData\Local\Temp\f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28.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:3136 -
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:4344
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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:3460 -
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:1960
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2940
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2280
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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:1724 -
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:4504
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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:544
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4832
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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:4680
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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:4392
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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:1444
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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:3460
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1544 -
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:3392 -
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:3192
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3596
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
MD54981ac08da70ba15091efad4cc775171
SHA1a29af64187d31a6202d32753c54a13886f180b17
SHA256c72ac7249a845ac0ac2f40cd67b8f62a9f2774bf9a511e83cf5b990768563c51
SHA512f0c8f22351808b7ee09c0d93ff41377dcd830223f968b04cec6ba51d5f69b5d51c21361799d1e2469134568d356098e6ce78201aecbd9bd407031e3661f65d86
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59aa3f303bcaea5af8b2a27ed49e18189
SHA10602f8a8fd0ef014ce68ef1df2e96962dfafd95a
SHA256fed09e287c322b8425f4223b005c0e99e6a36601b6572d83f0efca4ace1bca67
SHA5121a50c4a56657b099a79d64e115579aefe26a69f0ba593d8ec4e63b8ab74176040d9415088a6d1c0c4675f7727b454eeceffd48c7db48b7f0b8c22135c0ba2d86
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ffa79ca181760298115b9ca38d1c6161
SHA126f2bffd35af5b53f0a7ea940127d325e49fd386
SHA256323d699c03b0c0ed230c144df9cd6b5eeea3f018b0a24acd9acc347b1107fba4
SHA512e9f8ef87cccde23ec6bdeb7f553dab160f1eab7e14f832f9670c8fc386d72986902709c7cf03383fafb898301474b50423cae31f046ecfefb8e2016f6de5af74
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d43a05b0622d6f7cbba35d58de181025
SHA1fd569b5c125efb9ee98b28e6372ebe61a87c9d99
SHA25639cc16596844f0fe2ea3ae3b27d1159397ffaa7c3fc74660fa554652749ef14b
SHA5123444391ecc4a6268e0bcb6a1d2494bfe0447c4f1e740e85cfefb3063ea3ba3cf248ee98295b2914b840b1eed5f5a766a95c32466ef4d5c852fd0d34667a9a185
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c5ebcb337f0f43e6f4b8edc59c7acf1a
SHA1e15463bd70491ed7e95fdbfeec2e9f93652cc266
SHA25639f6568d1f8dd7f64f3e4139c8efafd16e350384f027327bf692454dac8ec59f
SHA512d45515e9c46d27cbfb6a87c6145f18bed8e4f23a2e98867c22077ce6d404e4dc185b1ec65cb5d495d7937f7f4a9998182872a20c22ab83c1f62b460011a6902f
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Filesize
4.1MB
MD5b45ca7444ee1d740f88b773be17f146b
SHA1166b898e19710cf5cb14604858335eacd9593bad
SHA256f1e2df238e780d62053a6028d5a28a893d61c9f52489171e823b5dff88cbea28
SHA5124ff9e3f5162f4dc2aa5f6732c8f0e54257265eb7f84277fca3a671c63cbcf9a2f7c6a701c910e0b80eb7c3e2ce584cc30e53aaa188c1b0a8a25edd2cff7fdf89
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec