Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-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 behavioral1/memory/4980-2-0x0000000004B90000-0x000000000547B000-memory.dmp family_glupteba behavioral1/memory/4980-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4980-57-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4980-56-0x0000000004B90000-0x000000000547B000-memory.dmp family_glupteba behavioral1/memory/4980-54-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/5112-162-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/4052-220-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/4052-222-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/4052-224-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/4052-225-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/4052-228-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/4052-230-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/4052-232-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/4052-234-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/4052-236-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/4052-238-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/4052-240-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/4052-242-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/4052-243-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 560 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 4052 csrss.exe 912 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\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 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 1820 powershell.exe 4772 powershell.exe 3952 powershell.exe 4228 powershell.exe 492 powershell.exe 1572 powershell.exe 4316 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 1776 schtasks.exe 2812 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,-2432 = "Cuba Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.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,-162 = "Central Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.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,-432 = "Iran Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\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,-1861 = "Russia TZ 6 Daylight Time" 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4316 powershell.exe 4316 powershell.exe 4980 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 4980 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 1820 powershell.exe 1820 powershell.exe 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 4772 powershell.exe 4772 powershell.exe 3952 powershell.exe 3952 powershell.exe 4228 powershell.exe 4228 powershell.exe 492 powershell.exe 492 powershell.exe 1572 powershell.exe 1572 powershell.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 4052 csrss.exe 4052 csrss.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 4052 csrss.exe 4052 csrss.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe 912 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 4316 powershell.exe Token: SeDebugPrivilege 4980 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Token: SeImpersonatePrivilege 4980 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe Token: SeDebugPrivilege 1820 powershell.exe Token: SeDebugPrivilege 4772 powershell.exe Token: SeDebugPrivilege 3952 powershell.exe Token: SeDebugPrivilege 4228 powershell.exe Token: SeDebugPrivilege 492 powershell.exe Token: SeDebugPrivilege 1572 powershell.exe Token: SeSystemEnvironmentPrivilege 4052 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 4980 wrote to memory of 4316 4980 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 84 PID 4980 wrote to memory of 4316 4980 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 84 PID 4980 wrote to memory of 4316 4980 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 84 PID 5112 wrote to memory of 1820 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 95 PID 5112 wrote to memory of 1820 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 95 PID 5112 wrote to memory of 1820 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 95 PID 5112 wrote to memory of 3140 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 99 PID 5112 wrote to memory of 3140 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 99 PID 3140 wrote to memory of 560 3140 cmd.exe 101 PID 3140 wrote to memory of 560 3140 cmd.exe 101 PID 5112 wrote to memory of 4772 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 102 PID 5112 wrote to memory of 4772 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 102 PID 5112 wrote to memory of 4772 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 102 PID 5112 wrote to memory of 3952 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 105 PID 5112 wrote to memory of 3952 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 105 PID 5112 wrote to memory of 3952 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 105 PID 5112 wrote to memory of 4052 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 107 PID 5112 wrote to memory of 4052 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 107 PID 5112 wrote to memory of 4052 5112 3b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9.exe 107 PID 4052 wrote to memory of 4228 4052 csrss.exe 108 PID 4052 wrote to memory of 4228 4052 csrss.exe 108 PID 4052 wrote to memory of 4228 4052 csrss.exe 108 PID 4052 wrote to memory of 492 4052 csrss.exe 113 PID 4052 wrote to memory of 492 4052 csrss.exe 113 PID 4052 wrote to memory of 492 4052 csrss.exe 113 PID 4052 wrote to memory of 1572 4052 csrss.exe 116 PID 4052 wrote to memory of 1572 4052 csrss.exe 116 PID 4052 wrote to memory of 1572 4052 csrss.exe 116 PID 4052 wrote to memory of 912 4052 csrss.exe 118 PID 4052 wrote to memory of 912 4052 csrss.exe 118 -
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:4980 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4316
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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:5112 -
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:1820
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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:3140 -
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:560
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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:4772
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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:3952
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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:4052 -
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:4228
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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:4704
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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:492
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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:1572
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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:912
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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:1776
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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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a28b7a8de202978f7c3362814dc74bf2
SHA14b55e81c7d1d59f97cc41f81981ffed3bc524beb
SHA256ab27e04fcfc6d8ac567e7cbdb8ff42d33c956e9694513a1ec987ad13b20df758
SHA5124e19e148f7d22de75d724cba938cdfd36891e8602e1e94c76bfba6846baae9506859df3f3ced3be02982d49285c764f498ea363de2628840899fb58763405ae7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58262d0a8262bff8eb14140c1a0ef33fe
SHA1e1aa598b5d013da9d19298aa9a154c20d4b430aa
SHA2569d9724d0884fb1b38e19e46d48f2f6b3eee690ee7336b587499898b95db64204
SHA5127b8add296d0472c5666c6598e66cf0c4f67fedc31642720d7f4f0165049cd534b70a21b4c2cc20fc963816bbaea86680178fdacb09ccd5e58f6737d58ce3bc60
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD515b38622c2b61655a67cfbe16009c515
SHA101bcfbb8861a8e66692a6de59214e33ccedc224e
SHA256284c553d4d15168e4ace80c742a53a92a4173ab472935fcbec613c26d5973b9a
SHA51279098cbc4f35213f042f0690c0b6495c2a2bc1bcba7a9cb394f393f4b4d9219582b09de7d7af5069915dc3a774aba5b5c01c26eb62649963df3ad4049bd9197c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD562bf637cef99e67d66f32684aade10d9
SHA1431ebafcbc43384e9ea56e0ab2defb28132ec393
SHA256745a871f315547c9ffe946b0ee6611ea674598f4daf6a8e40242ee5542a36f9d
SHA512c9a3c1bb2b6aa50832e15d7d0375c3dfd3536986d36107a19e5d76aeb70ce32e37bb95079cc037c98891e28d88b3729c94ee80105c82e8b57e805527059a4046
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD528264a6c2a38c23ffe9cafb214a76715
SHA10847b90e3be24fcec9facf83f632159076cbf38c
SHA2566bdb90fbc30d17017a895dbedfb9968cc8270d696c7e490fe336b41d812f9864
SHA512597887a5288ba4c75193e0440aca9f70864f5c5c04e9d17a9adbdccd8e96484451d32ba7ec645a9349700db2ce60e5a70c449854b20af869afe13a4489877e6c
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Filesize
4.1MB
MD5fbb4b14002cf63fb5d71d1398c4a7de6
SHA14845ce2c35974330310f79ae5aade376fdb39865
SHA2563b668a9058993f472824dc4acf46a0bd31986fd8ce51686dd65d620967f554e9
SHA512191eac97109aa8c68a26214cc6a5abf20bf26716de04d5471b67e55f7132762ea91a483e0df504c77ef195b4595ff060ba2739d293d097a02948d430cc63c3ae