Analysis
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max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
19/04/2024, 00:26
Static task
static1
Behavioral task
behavioral1
Sample
88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe
Resource
win10v2004-20240226-en
General
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Target
88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe
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Size
4.2MB
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MD5
02cdd996089a264535ac9ec1d498991c
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SHA1
7ba58a989c639fe86d591965f11b104c8ef2d388
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SHA256
88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab
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SHA512
c87954ee12270726e658975b18e64e50886c0e253f30a9bf3ce7aa7aa2e4068cb57429f4021e32110297449511e7619e40fa2684eeec11d51d4b50fe1c5d27fe
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SSDEEP
98304:ObvDuo/zvoC5HERRwr8YNEXJ0TS4JBXxT3BRfe7gLCxccCwfp3PGPzDBAeGjYAn:OnBoCproYNEXJ0O+Xpe7jrRPGnBARjfn
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/232-2-0x0000000005270000-0x0000000005B5B000-memory.dmp family_glupteba behavioral2/memory/232-3-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/232-51-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/232-53-0x0000000005270000-0x0000000005B5B000-memory.dmp family_glupteba behavioral2/memory/852-55-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/852-89-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/852-127-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/852-146-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/2168-195-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/2168-245-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/2168-253-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/2168-255-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/2168-257-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/2168-259-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/2168-261-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/2168-263-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/2168-265-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba behavioral2/memory/2168-267-0x0000000000400000-0x0000000003009000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4664 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2168 csrss.exe 408 injector.exe 4488 windefender.exe 4064 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa14-248.dat upx behavioral2/memory/4488-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4064-254-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4064-258-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4064-264-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe File created C:\Windows\rss\csrss.exe 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4124 sc.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 996 232 WerFault.exe 78 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 996 schtasks.exe 3056 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1892 = "Russia TZ 3 Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs 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\26\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.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\26\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2771 = "Omsk Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.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\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,-342 = "Egypt Standard Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.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\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs 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\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,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" 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,-2411 = "Marquesas Daylight Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3176 powershell.exe 3176 powershell.exe 232 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 232 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 1480 powershell.exe 1480 powershell.exe 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 1776 powershell.exe 1776 powershell.exe 2488 powershell.exe 2488 powershell.exe 3184 powershell.exe 3184 powershell.exe 2340 powershell.exe 2340 powershell.exe 3456 powershell.exe 3456 powershell.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 2168 csrss.exe 408 injector.exe 2168 csrss.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 2168 csrss.exe 2168 csrss.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 2168 csrss.exe 2168 csrss.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe 408 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3176 powershell.exe Token: SeDebugPrivilege 232 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Token: SeImpersonatePrivilege 232 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe Token: SeDebugPrivilege 1480 powershell.exe Token: SeDebugPrivilege 1776 powershell.exe Token: SeDebugPrivilege 2488 powershell.exe Token: SeDebugPrivilege 3184 powershell.exe Token: SeDebugPrivilege 2340 powershell.exe Token: SeDebugPrivilege 3456 powershell.exe Token: SeSystemEnvironmentPrivilege 2168 csrss.exe Token: SeSecurityPrivilege 4124 sc.exe Token: SeSecurityPrivilege 4124 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 232 wrote to memory of 3176 232 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 81 PID 232 wrote to memory of 3176 232 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 81 PID 232 wrote to memory of 3176 232 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 81 PID 852 wrote to memory of 1480 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 89 PID 852 wrote to memory of 1480 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 89 PID 852 wrote to memory of 1480 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 89 PID 852 wrote to memory of 5032 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 91 PID 852 wrote to memory of 5032 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 91 PID 5032 wrote to memory of 4664 5032 cmd.exe 93 PID 5032 wrote to memory of 4664 5032 cmd.exe 93 PID 852 wrote to memory of 1776 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 94 PID 852 wrote to memory of 1776 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 94 PID 852 wrote to memory of 1776 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 94 PID 852 wrote to memory of 2488 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 96 PID 852 wrote to memory of 2488 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 96 PID 852 wrote to memory of 2488 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 96 PID 852 wrote to memory of 2168 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 98 PID 852 wrote to memory of 2168 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 98 PID 852 wrote to memory of 2168 852 88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe 98 PID 2168 wrote to memory of 3184 2168 csrss.exe 99 PID 2168 wrote to memory of 3184 2168 csrss.exe 99 PID 2168 wrote to memory of 3184 2168 csrss.exe 99 PID 2168 wrote to memory of 2340 2168 csrss.exe 104 PID 2168 wrote to memory of 2340 2168 csrss.exe 104 PID 2168 wrote to memory of 2340 2168 csrss.exe 104 PID 2168 wrote to memory of 3456 2168 csrss.exe 107 PID 2168 wrote to memory of 3456 2168 csrss.exe 107 PID 2168 wrote to memory of 3456 2168 csrss.exe 107 PID 2168 wrote to memory of 408 2168 csrss.exe 109 PID 2168 wrote to memory of 408 2168 csrss.exe 109 PID 4488 wrote to memory of 2384 4488 windefender.exe 115 PID 4488 wrote to memory of 2384 4488 windefender.exe 115 PID 4488 wrote to memory of 2384 4488 windefender.exe 115 PID 2384 wrote to memory of 4124 2384 cmd.exe 116 PID 2384 wrote to memory of 4124 2384 cmd.exe 116 PID 2384 wrote to memory of 4124 2384 cmd.exe 116 -
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\88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe"C:\Users\Admin\AppData\Local\Temp\88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:232 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3176
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C:\Users\Admin\AppData\Local\Temp\88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.exe"C:\Users\Admin\AppData\Local\Temp\88b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab.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:852 -
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:1480
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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:5032 -
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:4664
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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:1776
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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:2488
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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:2168 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3184
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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:996
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4304
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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:2340
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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:3456
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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:408
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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:3056
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4488 -
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:2384 -
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:4124
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 232 -s 8082⤵
- Program crash
PID:996
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 232 -ip 2321⤵PID:4116
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4064
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
MD5127d72bebb20d8160d538789cd7d8ca3
SHA1405b480d806802cb5b22b6a5be4b615d4137e56d
SHA256fdd5c8ac98101c741c7cd6cd15961e6c0e5077e4c823df131941c714e3565222
SHA512a874843d3023cc605f684ae2768df1cdb7a64761ddf9bdb054ec4d4b04a6f08c69cbdec8e4ab528465e9f666a699dca46c121d0a34a9595eede654e2c0a608e0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cbe5c5be5fd020ec723c1ec839194f68
SHA1c01df5f4fc5ac5ea18c380454e8847210cb45e5b
SHA2560cc6a7e62183e1fe69fb070911372c2beaa63554e28104e29efb858263f9d5b8
SHA51243d5da319729cc9ef89abebbc13f500b0a7bd6d1a4235ab6d1d76e06c6e978820c7670176496f2711c4b0bf8019cc23e3bf88be1562a9bbc3244acf6c29910d9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53d62cbd96f287060a0cb085517098ffb
SHA11565896a3705b73f10936bc92318dfd3a11f5899
SHA2564218043f42f69b987883d655843fc88f005af3216046bbd360c3857d3176aeb6
SHA512ec9f1f363d6ee8fdee58276575ce2d0329ed997073d7b31d21c1a03e22c1993ce3b7b45dedb7d94baa8cb7c1d7373733947a6f22732e8637d954ea6d51ad9bae
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f00fcd5434c08fad6ccd7c15de7ffabc
SHA13f2cb5220aaa40c634e8795cda9de7d8b44131e9
SHA256f6089c3be530a8b9d0c5dba4a620cb1260c80c0f1e105e2065e4c0734c0c65e8
SHA51289f2cd79fcb4b3ef987d7ced8f3e9cc5ec278e35ead63470e5510cf60dd1e82edf864f9948f904e78bc8411cbda9c7c439d380f9353f2e1e9a8757f2c6086ec2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD549b5c6e58dbf8d85364b50d02b32cb28
SHA111bbed68fab193698c430088006a7b22f6682385
SHA25687797b2828532529fb6830687bd3d8d8e66bae8d07307b93babb5fafd97c1328
SHA512370f09d27d78b70bd961943c9af94e841f2f97d0dca2b9427d4773d3715746275467d0ee0c61e3573aec0c1cab22cdd4a4ad061d2aff1b448b42130eabc66693
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Filesize
4.2MB
MD502cdd996089a264535ac9ec1d498991c
SHA17ba58a989c639fe86d591965f11b104c8ef2d388
SHA25688b1d7531704948104ee0ea36d4443d02d36d96e8a4434c93081de0f123a58ab
SHA512c87954ee12270726e658975b18e64e50886c0e253f30a9bf3ce7aa7aa2e4068cb57429f4021e32110297449511e7619e40fa2684eeec11d51d4b50fe1c5d27fe
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec