Analysis
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max time kernel
149s -
max time network
154s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
20-04-2024 21:33
Static task
static1
Behavioral task
behavioral1
Sample
b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe
Resource
win10v2004-20240412-en
General
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Target
b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe
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Size
4.2MB
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MD5
5baacf7daa5badcc4797e877e7f0d261
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SHA1
e7129048ed96fc80442039a227b62b6b80a5d2c6
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SHA256
b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81
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SHA512
251ed23f92471c7bda58bdd7442cee003fcdbc6773f6c951194e0df4f4ecfcef4819c0d0c036e7c0c0bfc2cedcb7517ecbe7b106aa5a5ca42b2c35edd370c332
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SSDEEP
98304:6B6TE4JDSTIitXqfSjBwF+v4rSSNjcdSqGUwT7RQU7ON:HTFmTI8qKjKFA4r+dAh7RQUA
Malware Config
Signatures
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Glupteba payload 21 IoCs
Processes:
resource yara_rule behavioral2/memory/3560-2-0x00000000040D0000-0x00000000049BB000-memory.dmp family_glupteba behavioral2/memory/3560-3-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/3560-50-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1844-53-0x0000000003F30000-0x000000000481B000-memory.dmp family_glupteba behavioral2/memory/3560-54-0x00000000040D0000-0x00000000049BB000-memory.dmp family_glupteba behavioral2/memory/1844-55-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1844-128-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1844-151-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/464-214-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/464-217-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/464-219-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/464-229-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/464-231-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/464-234-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/464-237-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/464-240-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/464-243-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/464-247-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/464-250-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/464-252-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/464-255-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 4676 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 464 csrss.exe 4792 injector.exe 4324 windefender.exe 228 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/4324-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/228-230-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/228-236-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Set value (str) \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 6 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created 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.
Processes:
b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe -
Drops file in Windows directory 4 IoCs
Processes:
csrss.exeb27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exedescription ioc process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe File created C:\Windows\rss\csrss.exe b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe File created 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 4552 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 544 schtasks.exe 1956 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exeb27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2892 = "Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-441 = "Arabian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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\26\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" 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" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeb27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exepowershell.exeb27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4928 powershell.exe 4928 powershell.exe 3560 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe 3560 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe 3916 powershell.exe 3916 powershell.exe 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe 2000 powershell.exe 2000 powershell.exe 2656 powershell.exe 2656 powershell.exe 4180 powershell.exe 4180 powershell.exe 2400 powershell.exe 2400 powershell.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 464 csrss.exe 464 csrss.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 464 csrss.exe 464 csrss.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe 4792 injector.exe -
Suspicious use of AdjustPrivilegeToken 11 IoCs
Processes:
powershell.exeb27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 4928 powershell.exe Token: SeDebugPrivilege 3560 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Token: SeImpersonatePrivilege 3560 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe Token: SeDebugPrivilege 3916 powershell.exe Token: SeDebugPrivilege 2000 powershell.exe Token: SeDebugPrivilege 2656 powershell.exe Token: SeDebugPrivilege 4180 powershell.exe Token: SeDebugPrivilege 2400 powershell.exe Token: SeSystemEnvironmentPrivilege 464 csrss.exe Token: SeSecurityPrivilege 4552 sc.exe Token: SeSecurityPrivilege 4552 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exeb27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 3560 wrote to memory of 4928 3560 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe powershell.exe PID 3560 wrote to memory of 4928 3560 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe powershell.exe PID 3560 wrote to memory of 4928 3560 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe powershell.exe PID 1844 wrote to memory of 3916 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe powershell.exe PID 1844 wrote to memory of 3916 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe powershell.exe PID 1844 wrote to memory of 3916 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe powershell.exe PID 1844 wrote to memory of 1976 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe cmd.exe PID 1844 wrote to memory of 1976 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe cmd.exe PID 1976 wrote to memory of 4676 1976 cmd.exe netsh.exe PID 1976 wrote to memory of 4676 1976 cmd.exe netsh.exe PID 1844 wrote to memory of 2000 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe powershell.exe PID 1844 wrote to memory of 2000 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe powershell.exe PID 1844 wrote to memory of 2000 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe powershell.exe PID 1844 wrote to memory of 2656 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe powershell.exe PID 1844 wrote to memory of 2656 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe powershell.exe PID 1844 wrote to memory of 2656 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe powershell.exe PID 1844 wrote to memory of 464 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe csrss.exe PID 1844 wrote to memory of 464 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe csrss.exe PID 1844 wrote to memory of 464 1844 b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe csrss.exe PID 464 wrote to memory of 5064 464 csrss.exe powershell.exe PID 464 wrote to memory of 5064 464 csrss.exe powershell.exe PID 464 wrote to memory of 5064 464 csrss.exe powershell.exe PID 464 wrote to memory of 4180 464 csrss.exe powershell.exe PID 464 wrote to memory of 4180 464 csrss.exe powershell.exe PID 464 wrote to memory of 4180 464 csrss.exe powershell.exe PID 464 wrote to memory of 2400 464 csrss.exe powershell.exe PID 464 wrote to memory of 2400 464 csrss.exe powershell.exe PID 464 wrote to memory of 2400 464 csrss.exe powershell.exe PID 464 wrote to memory of 4792 464 csrss.exe injector.exe PID 464 wrote to memory of 4792 464 csrss.exe injector.exe PID 4324 wrote to memory of 1064 4324 windefender.exe cmd.exe PID 4324 wrote to memory of 1064 4324 windefender.exe cmd.exe PID 4324 wrote to memory of 1064 4324 windefender.exe cmd.exe PID 1064 wrote to memory of 4552 1064 cmd.exe sc.exe PID 1064 wrote to memory of 4552 1064 cmd.exe sc.exe PID 1064 wrote to memory of 4552 1064 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\b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe"C:\Users\Admin\AppData\Local\Temp\b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3560 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4928
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C:\Users\Admin\AppData\Local\Temp\b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.exe"C:\Users\Admin\AppData\Local\Temp\b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81.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:1844 -
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:3916
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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:1976 -
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:4676
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2000
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2656
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:464 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Modifies data under HKEY_USERS
PID:5064
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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:544
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4408
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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:4180
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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:2400
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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:4792
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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:1956
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4324 -
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:1064 -
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:4552
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:228
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
MD521b96031be7a977825bf6000f173f814
SHA1da6de332ab220bef7330bf45a5b8a4ee14a79d06
SHA2569b053e33add96dec2432a1377f0c975a033065c0f3e05f743a6bad2d27be69c7
SHA5129d2261ffc315657dea16a86727d44751d0c7060624cbc3ddf550bfe703d6284fc2bdb1f749e1309ad4b0ef375825185a1278fe23d8e53fb7c2d33844d39a4c4c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5dbf89320a4ee1178da4c5d79e208bf72
SHA1bed6dd6de32761e05b72bf626448da4cfc183f27
SHA256890eb8ee9d92dadc8e53c5326c0fe25f3d9d47b6054672c8fcaf64e34b3f709f
SHA512a870583b24deac28385874225816649ba4db8ab7a9abf3a12e2faa7e651438d6f238464cbe7e05d7a07b4693cf6f6a2ea8292987f766d41b43910778a2e2f5f2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5eaf924e1ff0d9b7a145063084fee531f
SHA1c74935a82fa34698f6bdaf6f232a00d838e46614
SHA2561108cc46407b8e126ff6991a678c9b12e68279c7131b54d06cac6e2ff1ade7f1
SHA5127fb48822047e98b1ac3817e288181ae776b1e583a26e3237cc4caf7439d0ffdac5910727ff2451ce12e9dd4267f9b8a8614777e7b7148c2df7575e493cd589e5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50d8b8c50d03b62f1c56beebd8a8b4ef5
SHA1efda564b8c3556a651b4efc542da3d750d03554c
SHA25632a7b1216ba9d4b82d0891397dfb0dfffed5805102b9e41206623c654caac5a9
SHA51210ae029319fbad0092e8948a6a8cdf9ab9ed15a8950805293b9bf3f66558c1ceffdb93b7bea2268ed8c7c57c8dfaca5a2f75c0ddf7ec8ab6f851828fa34cc0c1
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Filesize
4.2MB
MD55baacf7daa5badcc4797e877e7f0d261
SHA1e7129048ed96fc80442039a227b62b6b80a5d2c6
SHA256b27a303d6c162c5624d1b2bc527e5dd6b74954b9ba6f48074f0e88f5dcc59b81
SHA512251ed23f92471c7bda58bdd7442cee003fcdbc6773f6c951194e0df4f4ecfcef4819c0d0c036e7c0c0bfc2cedcb7517ecbe7b106aa5a5ca42b2c35edd370c332
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec