Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
12-04-2024 23:21
Static task
static1
Behavioral task
behavioral1
Sample
bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe
Resource
win10v2004-20240412-en
General
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Target
bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe
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Size
4.2MB
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MD5
88c9cb2995c96df8d838a12ea9ce4dd0
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SHA1
bd9036aafaf4bc173d3094eb37c52bef4b6d0b9e
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SHA256
bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60
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SHA512
aaf43c0182a621c6677f2f613ed31cd187849c89793d06f91326d39ac99178662daca987a8a03bcd7a2dcb6f10b8e61570b3d9c2d218e05a1194b2e1bd50eb7f
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SSDEEP
98304:mxYk/Wd4gprCGADohyqBdv1Fi5ytzZrDpDNU:YnWmu2kBdS54nBNU
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral1/memory/4728-2-0x0000000005100000-0x00000000059EB000-memory.dmp family_glupteba behavioral1/memory/4728-3-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral1/memory/4728-54-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral1/memory/4728-56-0x0000000005100000-0x00000000059EB000-memory.dmp family_glupteba behavioral1/memory/3288-68-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral1/memory/3288-146-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral1/memory/3288-157-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral1/memory/1232-257-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral1/memory/1232-268-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral1/memory/1232-272-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral1/memory/1232-274-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral1/memory/1232-278-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral1/memory/1232-282-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral1/memory/1232-288-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral1/memory/1232-292-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral1/memory/1232-296-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral1/memory/1232-300-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba behavioral1/memory/1232-304-0x0000000000400000-0x0000000003017000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 1796 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 1232 csrss.exe 3056 injector.exe 4424 windefender.exe 4448 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral1/memory/4424-266-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4448-270-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4448-279-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe -
Drops file in Windows directory 4 IoCs
Processes:
bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.execsrss.exedescription ioc process File opened for modification C:\Windows\rss bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe File created C:\Windows\rss\csrss.exe bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 3556 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 528 schtasks.exe 3456 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs 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,-441 = "Arabian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed 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,-691 = "Tasmania Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-512 = "Central Asia 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-741 = "New Zealand Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exebfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exepowershell.exebfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 1452 powershell.exe 1452 powershell.exe 4728 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 4728 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 4080 powershell.exe 4080 powershell.exe 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe 716 powershell.exe 716 powershell.exe 1304 powershell.exe 1304 powershell.exe 4000 powershell.exe 4000 powershell.exe 4588 powershell.exe 4588 powershell.exe 116 powershell.exe 116 powershell.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 1232 csrss.exe 1232 csrss.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 1232 csrss.exe 1232 csrss.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 1232 csrss.exe 1232 csrss.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe 3056 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exebfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 1452 powershell.exe Token: SeDebugPrivilege 4728 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Token: SeImpersonatePrivilege 4728 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe Token: SeDebugPrivilege 4080 powershell.exe Token: SeDebugPrivilege 716 powershell.exe Token: SeDebugPrivilege 1304 powershell.exe Token: SeDebugPrivilege 4000 powershell.exe Token: SeDebugPrivilege 4588 powershell.exe Token: SeDebugPrivilege 116 powershell.exe Token: SeSystemEnvironmentPrivilege 1232 csrss.exe Token: SeSecurityPrivilege 3556 sc.exe Token: SeSecurityPrivilege 3556 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exebfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4728 wrote to memory of 1452 4728 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 4728 wrote to memory of 1452 4728 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 4728 wrote to memory of 1452 4728 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 3288 wrote to memory of 4080 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 3288 wrote to memory of 4080 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 3288 wrote to memory of 4080 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 3288 wrote to memory of 4624 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe cmd.exe PID 3288 wrote to memory of 4624 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe cmd.exe PID 4624 wrote to memory of 1796 4624 cmd.exe netsh.exe PID 4624 wrote to memory of 1796 4624 cmd.exe netsh.exe PID 3288 wrote to memory of 716 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 3288 wrote to memory of 716 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 3288 wrote to memory of 716 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 3288 wrote to memory of 1304 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 3288 wrote to memory of 1304 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 3288 wrote to memory of 1304 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe powershell.exe PID 3288 wrote to memory of 1232 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe csrss.exe PID 3288 wrote to memory of 1232 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe csrss.exe PID 3288 wrote to memory of 1232 3288 bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe csrss.exe PID 1232 wrote to memory of 4000 1232 csrss.exe powershell.exe PID 1232 wrote to memory of 4000 1232 csrss.exe powershell.exe PID 1232 wrote to memory of 4000 1232 csrss.exe powershell.exe PID 1232 wrote to memory of 4588 1232 csrss.exe powershell.exe PID 1232 wrote to memory of 4588 1232 csrss.exe powershell.exe PID 1232 wrote to memory of 4588 1232 csrss.exe powershell.exe PID 1232 wrote to memory of 116 1232 csrss.exe powershell.exe PID 1232 wrote to memory of 116 1232 csrss.exe powershell.exe PID 1232 wrote to memory of 116 1232 csrss.exe powershell.exe PID 1232 wrote to memory of 3056 1232 csrss.exe injector.exe PID 1232 wrote to memory of 3056 1232 csrss.exe injector.exe PID 4424 wrote to memory of 2764 4424 windefender.exe cmd.exe PID 4424 wrote to memory of 2764 4424 windefender.exe cmd.exe PID 4424 wrote to memory of 2764 4424 windefender.exe cmd.exe PID 2764 wrote to memory of 3556 2764 cmd.exe sc.exe PID 2764 wrote to memory of 3556 2764 cmd.exe sc.exe PID 2764 wrote to memory of 3556 2764 cmd.exe sc.exe -
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\bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe"C:\Users\Admin\AppData\Local\Temp\bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4728 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1452 -
C:\Users\Admin\AppData\Local\Temp\bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.exe"C:\Users\Admin\AppData\Local\Temp\bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60.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:3288 -
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:4080 -
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:4624 -
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:1796 -
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:716 -
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:1304 -
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:1232 -
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:4000 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:528 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3244
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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:4588 -
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:116 -
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:3056 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3456 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4424 -
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:2764 -
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:3556
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4448
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
MD5d558f86c11cbb7a70de9b357173e8c11
SHA18a6a9005947aa4970e2f941de2d3123e93eaa6f6
SHA25654a8c1d3af48a9be40ecada7b7a2d8672784b97442d1e1f2cb9d44161d84b8b8
SHA5122c0f0c158b89a3a842fd22b9f59d356cb8fcfca8d7f3419a6b4ad7229a3f05ecf800a1e474b9220f34774112b4a0d43050e2a71c9027647a58adff8b2c238a72
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5967de9ef5ea3bd80cff2cde78d4b15d3
SHA10dd376685cabb9748d6337cbe72c976556930cca
SHA25687f0bbc90d1c2629c5dbb9597f36f0dceef5e4170baf140eef5afca2c42cf722
SHA5127f853aa3ab3a8e01e078706a0a495c06fdc8bcb24cce45fda7e6a37cad73fafc40dca8e677679d705090e6b9d62e39c2e788ce618b328d053d627d623f691880
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD517206030ccdd8f4a5c34487c2d2ac660
SHA1c3cf9337475115af80815e752122b0aeeb79a77e
SHA256b6ca99186e4d0c7fd91a6a1a22628c45d2f1df8dbac44e76b71123c0344ec52c
SHA5129c5277a9459d242efd2d24f90c4fcfecada518986c017d8334fc2481288c406ef7edf70583fd025fecfe239a8eb8c159cc314987848f536a8d105d9fac733aed
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5be0deccef4398f7c9fe7a01ec7cf8bd7
SHA1a854dfa8d2f47787d5113da996058818e293b004
SHA25690b617206ef2057eeccdce69d470dfb2fc27a936435808089193f4290520ec5a
SHA512a8ce652d2af66b54d5d736167e463176d7858ce3f25428cb4923bc6df3a9844622dac93719a5459965cac73b4cedaf08c47a9edb2a2c7ed5d3ce48ce5caa4f92
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f2efd6092256965c3c5a4154d4200cf7
SHA187af79982259739cd9131dc7099abe43c1a7a0b9
SHA2565722749f5085afba22b4e48aca0f628e036e169105ecedeea63bd5a866e5f559
SHA512c73a7049dbbff04f28e499f24b22f40f4f667d9fc66b81aabeea799d70ce33f1d95eb0bdb27f74b1336729f1a57ec6a663c570fe9c66b50857bb5a4ae195bf6c
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Filesize
4.2MB
MD588c9cb2995c96df8d838a12ea9ce4dd0
SHA1bd9036aafaf4bc173d3094eb37c52bef4b6d0b9e
SHA256bfb49b198bec40507f48ae692234f001c7b0daf41c5efd93bbce37c3f9082e60
SHA512aaf43c0182a621c6677f2f613ed31cd187849c89793d06f91326d39ac99178662daca987a8a03bcd7a2dcb6f10b8e61570b3d9c2d218e05a1194b2e1bd50eb7f
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec