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Analysis
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max time kernel
149s -
max time network
154s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
18/05/2024, 11:52
Static task
static1
Behavioral task
behavioral1
Sample
3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe
Resource
win10v2004-20240508-en
General
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Target
3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe
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Size
4.1MB
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MD5
fbb4b14002cf63fb5d71d1398c4a7de6
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SHA1
4845ce2c35974330310f79ae5aade376fdb39865
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SHA256
3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9
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SHA512
191eac97109aa8c68a26214cc6a5abf20bf26716de04d5471b67e55f7132762ea91a483e0df504c77ef195b4595ff060ba2739d293d097a02948d430cc63c3ae
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SSDEEP
98304:IZ9bi3QNEOtUId2petU9sYIhWVMAA4+H1:B303UIApyYIhWVME8
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/4624-2-0x0000000004C80000-0x000000000556B000-memory.dmp family_glupteba behavioral2/memory/4624-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4624-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4624-54-0x0000000004C80000-0x000000000556B000-memory.dmp family_glupteba behavioral2/memory/4624-51-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2396-151-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3684-205-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3684-207-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3684-209-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3684-211-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3684-212-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3684-215-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3684-217-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3684-219-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3684-220-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3684-223-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3684-225-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3684-227-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3684-228-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3284 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 3684 csrss.exe 4776 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.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 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 -
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 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe File created C:\Windows\rss\csrss.exe 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe -
pid Process 1484 powershell.exe 3424 powershell.exe 3776 powershell.exe 4248 powershell.exe 4528 powershell.exe 3928 powershell.exe 1936 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2060 schtasks.exe 3916 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.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" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4248 powershell.exe 4248 powershell.exe 4624 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 4624 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 4528 powershell.exe 4528 powershell.exe 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 3928 powershell.exe 3928 powershell.exe 1936 powershell.exe 1936 powershell.exe 1484 powershell.exe 1484 powershell.exe 3424 powershell.exe 3424 powershell.exe 3776 powershell.exe 3776 powershell.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 3684 csrss.exe 3684 csrss.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 3684 csrss.exe 3684 csrss.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe 4776 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 4248 powershell.exe Token: SeDebugPrivilege 4624 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Token: SeImpersonatePrivilege 4624 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Token: SeDebugPrivilege 4528 powershell.exe Token: SeDebugPrivilege 3928 powershell.exe Token: SeDebugPrivilege 1936 powershell.exe Token: SeDebugPrivilege 1484 powershell.exe Token: SeDebugPrivilege 3424 powershell.exe Token: SeDebugPrivilege 3776 powershell.exe Token: SeSystemEnvironmentPrivilege 3684 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 4624 wrote to memory of 4248 4624 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 81 PID 4624 wrote to memory of 4248 4624 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 81 PID 4624 wrote to memory of 4248 4624 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 81 PID 2396 wrote to memory of 4528 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 86 PID 2396 wrote to memory of 4528 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 86 PID 2396 wrote to memory of 4528 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 86 PID 2396 wrote to memory of 4776 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 88 PID 2396 wrote to memory of 4776 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 88 PID 4776 wrote to memory of 3284 4776 cmd.exe 90 PID 4776 wrote to memory of 3284 4776 cmd.exe 90 PID 2396 wrote to memory of 3928 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 91 PID 2396 wrote to memory of 3928 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 91 PID 2396 wrote to memory of 3928 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 91 PID 2396 wrote to memory of 1936 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 93 PID 2396 wrote to memory of 1936 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 93 PID 2396 wrote to memory of 1936 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 93 PID 2396 wrote to memory of 3684 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 95 PID 2396 wrote to memory of 3684 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 95 PID 2396 wrote to memory of 3684 2396 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 95 PID 3684 wrote to memory of 1484 3684 csrss.exe 96 PID 3684 wrote to memory of 1484 3684 csrss.exe 96 PID 3684 wrote to memory of 1484 3684 csrss.exe 96 PID 3684 wrote to memory of 3424 3684 csrss.exe 102 PID 3684 wrote to memory of 3424 3684 csrss.exe 102 PID 3684 wrote to memory of 3424 3684 csrss.exe 102 PID 3684 wrote to memory of 3776 3684 csrss.exe 104 PID 3684 wrote to memory of 3776 3684 csrss.exe 104 PID 3684 wrote to memory of 3776 3684 csrss.exe 104 PID 3684 wrote to memory of 4776 3684 csrss.exe 106 PID 3684 wrote to memory of 4776 3684 csrss.exe 106 -
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\3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe"C:\Users\Admin\AppData\Local\Temp\3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4624 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4248
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C:\Users\Admin\AppData\Local\Temp\3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe"C:\Users\Admin\AppData\Local\Temp\3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.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:2396 -
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:4528
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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:4776 -
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:3284
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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:3928
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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:1936
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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.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3684 -
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:1484
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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:2060
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4504
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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:3424
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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:3776
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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:4776
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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:3916
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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
MD5934a71f81b2ecfc179e9e28546a424ee
SHA16406b705dbaa709e80f1bdad09dff61098c0c7df
SHA2568f03c562806f3c59c14b830d978e083e43f71b35c3ab3b19654a4425144f043f
SHA51272da0d1290053a4e8b087be7e3861e904e13c2084ed7aef9635db4618e6579a3d26fda3639714daef12aaa1d81458f85c021531c88b98c86ab79557a25a057e6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56bcb485369df29d102bdcf3532c01ca2
SHA12775df888641188b7830c06da8ebd234ac03b588
SHA25633abb0b486091904e51520ea3e2729ad431bde429bc974a0f710f670c2024205
SHA512597c2c4179293379e8c611231c01859c11252165bced100f1f88f1f20abc26601477c6ac0cc289850dab8c5ca0d7c3d7576c5db7818c03c61d82e0792e7bb3a8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b500b0ee91ae87fc0a15ce99388da142
SHA1ac7c2c18175d04548f1240d9e1a7177471bbad2f
SHA256759988231ca5854eb97820faf5fc15b017f7bb96f90cd6b3f68d9cfec463c746
SHA5127ebf41aa4e535f3c29fa3a4cabeedf3aacfbc46a7e5610330669353a520cf7fad11105a0c22eb28168bf2131caa00f7083848a917fb7384f0f1f1c8614c2b7f8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51fb0db0a402ca2921f57ad817bde2b37
SHA1e72d614727ba8f7aea9b60f20d2eb2745e51c365
SHA25660c4f72c8fd1add6d9eef8bbd120f5c225ece24501e2b1a75c3934a15f0b29f5
SHA512f13250d36b5cbe94e0761ecb4afdcca184f650416d7f8aa9d1ea1d36047b49c85daa5ba7066594bc9540acad8cc2cb7182184a5f06e16a404d8bc8cf12183414
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53fb09dd1049e3c4a556d850de5fb1eec
SHA1e75fe5806198c3d0bd0add7d34e68817a256107d
SHA256397e8290b2b2f06639f01ac176f1a4b1816b135ea819897b68192dd3363db2c7
SHA5127e1875a833365d14e6c5fb8a729a860b91f6ba18d6f1872ce32cc1c1169959dac9b00e39a0be0934ddf9e833f36ffb32f62714ca373cd015b03054d203f8ee5d
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Filesize
4.1MB
MD5fbb4b14002cf63fb5d71d1398c4a7de6
SHA14845ce2c35974330310f79ae5aade376fdb39865
SHA2563b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9
SHA512191eac97109aa8c68a26214cc6a5abf20bf26716de04d5471b67e55f7132762ea91a483e0df504c77ef195b4595ff060ba2739d293d097a02948d430cc63c3ae