Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
19/04/2024, 19:24
Static task
static1
Behavioral task
behavioral1
Sample
bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe
Resource
win10v2004-20240412-en
General
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Target
bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe
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Size
4.2MB
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MD5
4e5a9dbf1071bad4a09a7ae6eb19101b
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SHA1
f1e37abee4fc5f90884bea594216aee813b51232
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SHA256
bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577
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SHA512
78f64539575b989a1ca21c6ce9b010d997f8f53846f4c09f1a11d98c5053717704d961e5e0da28daf43890517a10b572c3c885229148487ae2a2dd909c4c2c1d
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SSDEEP
98304:TtwUIgr6Tu/hivXD0fl0IvZVjhgp1+mYFjvUcmYnimsjZaHe4:Rw6rquKXDtU1Y2GYniVjUH1
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/536-2-0x0000000004010000-0x00000000048FB000-memory.dmp family_glupteba behavioral2/memory/536-3-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/4240-52-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/536-76-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/4240-148-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3448-240-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3448-242-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3448-252-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3448-255-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3448-258-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3448-261-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3448-264-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3448-267-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3448-270-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3448-273-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3448-276-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3448-279-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3448-282-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1028 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3448 csrss.exe 1468 injector.exe 1048 windefender.exe 3880 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa33-245.dat upx behavioral2/memory/1048-250-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3880-253-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3880-259-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2718508534-2116753757-2794822388-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\S-1-5-21-2718508534-2116753757-2794822388-1000\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.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 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 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1192 sc.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2004 4240 WerFault.exe 85 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2812 schtasks.exe 2828 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.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 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,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time" windefender.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,-2612 = "Bougainville Standard 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\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.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,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.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,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3944 powershell.exe 3944 powershell.exe 536 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 536 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 1436 powershell.exe 1436 powershell.exe 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 4072 powershell.exe 4072 powershell.exe 4868 powershell.exe 4868 powershell.exe 4568 powershell.exe 4568 powershell.exe 1072 powershell.exe 1072 powershell.exe 3796 powershell.exe 3796 powershell.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 3448 csrss.exe 3448 csrss.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 3448 csrss.exe 3448 csrss.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 3448 csrss.exe 3448 csrss.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe 1468 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3944 powershell.exe Token: SeDebugPrivilege 536 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Token: SeImpersonatePrivilege 536 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe Token: SeDebugPrivilege 1436 powershell.exe Token: SeDebugPrivilege 4072 powershell.exe Token: SeDebugPrivilege 4868 powershell.exe Token: SeDebugPrivilege 4568 powershell.exe Token: SeDebugPrivilege 1072 powershell.exe Token: SeDebugPrivilege 3796 powershell.exe Token: SeSystemEnvironmentPrivilege 3448 csrss.exe Token: SeSecurityPrivilege 1192 sc.exe Token: SeSecurityPrivilege 1192 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 536 wrote to memory of 3944 536 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 81 PID 536 wrote to memory of 3944 536 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 81 PID 536 wrote to memory of 3944 536 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 81 PID 4240 wrote to memory of 1436 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 86 PID 4240 wrote to memory of 1436 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 86 PID 4240 wrote to memory of 1436 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 86 PID 4240 wrote to memory of 4652 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 88 PID 4240 wrote to memory of 4652 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 88 PID 4652 wrote to memory of 1028 4652 cmd.exe 90 PID 4652 wrote to memory of 1028 4652 cmd.exe 90 PID 4240 wrote to memory of 4072 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 91 PID 4240 wrote to memory of 4072 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 91 PID 4240 wrote to memory of 4072 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 91 PID 4240 wrote to memory of 4868 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 93 PID 4240 wrote to memory of 4868 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 93 PID 4240 wrote to memory of 4868 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 93 PID 4240 wrote to memory of 3448 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 95 PID 4240 wrote to memory of 3448 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 95 PID 4240 wrote to memory of 3448 4240 bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe 95 PID 3448 wrote to memory of 4568 3448 csrss.exe 99 PID 3448 wrote to memory of 4568 3448 csrss.exe 99 PID 3448 wrote to memory of 4568 3448 csrss.exe 99 PID 3448 wrote to memory of 1072 3448 csrss.exe 105 PID 3448 wrote to memory of 1072 3448 csrss.exe 105 PID 3448 wrote to memory of 1072 3448 csrss.exe 105 PID 3448 wrote to memory of 3796 3448 csrss.exe 107 PID 3448 wrote to memory of 3796 3448 csrss.exe 107 PID 3448 wrote to memory of 3796 3448 csrss.exe 107 PID 3448 wrote to memory of 1468 3448 csrss.exe 109 PID 3448 wrote to memory of 1468 3448 csrss.exe 109 PID 1048 wrote to memory of 5024 1048 windefender.exe 116 PID 1048 wrote to memory of 5024 1048 windefender.exe 116 PID 1048 wrote to memory of 5024 1048 windefender.exe 116 PID 5024 wrote to memory of 1192 5024 cmd.exe 117 PID 5024 wrote to memory of 1192 5024 cmd.exe 117 PID 5024 wrote to memory of 1192 5024 cmd.exe 117 -
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\bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe"C:\Users\Admin\AppData\Local\Temp\bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:536 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3944
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C:\Users\Admin\AppData\Local\Temp\bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.exe"C:\Users\Admin\AppData\Local\Temp\bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577.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:4240 -
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:1436
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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:4652 -
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:1028
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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:4072
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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:4868
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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:3448 -
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:4568
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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:2812
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2796
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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:1072
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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:3796
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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:1468
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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:2828
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1048 -
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:5024 -
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:1192
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4240 -s 9003⤵
- Program crash
PID:2004
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4240 -ip 42401⤵PID:5056
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3880
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
MD58ec5456724f23a04ff65c8b3c783c204
SHA1b52dafa871edbcd5c6a8eb8f4b9010880b72a1ec
SHA256c783f80b48b779a18c5fa0a6e8aa248bd554dc084f2a438fb1a264e8a2718f6e
SHA512ebafb6f2f5f34c4efb9881e0f4e38c0f0cc8776ab2aa1b897c7d11de7509d72aca85534d99946bb0337b0992da92fb96c47289137b48d6f471add7ca05ca0c20
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b86f96eb194abc3a2418eea10aa3cdb3
SHA105e138d09905b2ec3a465594827d42d00e62cc67
SHA256f90de55d679cbddc532992e6e5118449105d4443d2596038fded60419844da33
SHA512783706b1a935cdd8a92ff8ed3bfd4547e0d6f8d1a2d6bca1fdbf81066c579fde5b05a9ed07af7b94e9efce142fb7214314284fb2ad92533bbade0256caceb6e1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD555ca161945c62ecefe1d944b59d95a69
SHA11eea3db445ca66c69499d2e5805802e49ae21781
SHA2568481e2dbba46b9782e42e0a30c114c9e30a70077617cb9316d7bc6f31db4ffa6
SHA512b67a7b866c4b024dd3ccf42f4a523ded7362c68a64e79cb09d3e785a11fbd859f7de15659df02554fdfbac3d754fe3a37bfefc6c15cde326bd1682595f80ad09
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fc24d49e9202820a39c8d9a7418860fa
SHA1873ea7e356c0870397a33085e6b496985a870459
SHA2567265cb552e1a5c2f5283c04c98c6267d177ced79d23e05cb7f8e22f0eb82425c
SHA5127249cdd4179993b491a7de7949edce13b4e23c0640f5beafbb060b1478e7959842e3ad98d2c997cadde334785f75fae5f019b9d8e08df55d3505c5ca34679e13
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50af1b539a004d850b185e8aaa24ad4e3
SHA12db2ec4343db3a98353c194b063afe431008795f
SHA256faf931287ed59e8b67dda383c8140bc6c24d7a09710514a842b4eabf92c97f57
SHA5121aeda1c6c0c8ec0c67cfdfb1b0a4e313c0832870214b96c591d7c52c2cc7ff8d2ef8719f496f4f7e97662380c323605d854d8b3afaeda5785755a16111bb4940
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Filesize
4.2MB
MD54e5a9dbf1071bad4a09a7ae6eb19101b
SHA1f1e37abee4fc5f90884bea594216aee813b51232
SHA256bb2b0dccf9b800b81e64aabc8cf73ab72e4dd5412395fb01386e4295fc748577
SHA51278f64539575b989a1ca21c6ce9b010d997f8f53846f4c09f1a11d98c5053717704d961e5e0da28daf43890517a10b572c3c885229148487ae2a2dd909c4c2c1d
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec