Analysis
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max time kernel
150s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 16:27
Static task
static1
Behavioral task
behavioral1
Sample
c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe
Resource
win10v2004-20240426-en
General
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Target
c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe
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Size
4.1MB
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MD5
3f2d5b5b9aeadc636dbf6ea91c17c16f
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SHA1
c1cc44feff2001f206f488898546827c6f8727d6
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SHA256
c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601
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SHA512
da9b633b0bcc5154ae2a9f7423210bb80bff599d30ee29866c0924cb2cd591881c06d11c5c3b799468972f3b089387fc6ba2a19449647e22c1b69303784c1ddb
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SSDEEP
98304:5vHfbigA34ifkpJZQU0TgaIfW6UkFHwAhDtgwFW+12:5vHfb2IifudqhIuUHwAjW+M
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/536-2-0x00000000048D0000-0x00000000051BB000-memory.dmp family_glupteba behavioral1/memory/536-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/536-156-0x00000000048D0000-0x00000000051BB000-memory.dmp family_glupteba behavioral1/memory/536-154-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/536-213-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4040-212-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2528-215-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2528-227-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2528-230-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2528-234-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2528-239-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2528-243-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2528-247-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2528-250-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2528-255-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2528-259-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2528-263-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2528-267-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2528-270-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2196 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 2528 csrss.exe 2948 injector.exe 3480 windefender.exe 1936 windefender.exe -
Processes:
resource yara_rule behavioral1/files/0x000800000002343a-219.dat upx behavioral1/memory/1936-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3480-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3480-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1936-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1936-237-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\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 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.
Processes:
c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe -
Drops file in Windows directory 4 IoCs
Processes:
c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.execsrss.exedescription ioc Process File created C:\Windows\rss\csrss.exe c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid Process 4632 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 1992 powershell.exe 1428 powershell.exe 428 powershell.exe 2052 powershell.exe 4944 powershell.exe 4232 powershell.exe 3228 powershell.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 3988 schtasks.exe 2052 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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\2a\52C64B7E\@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2182 = "Astrakhan Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-691 = "Tasmania Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates 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\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exec21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exepowershell.exec21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 1992 powershell.exe 1992 powershell.exe 536 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 536 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 1428 powershell.exe 1428 powershell.exe 1428 powershell.exe 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 428 powershell.exe 428 powershell.exe 428 powershell.exe 2052 powershell.exe 2052 powershell.exe 2052 powershell.exe 4944 powershell.exe 4944 powershell.exe 4944 powershell.exe 4232 powershell.exe 4232 powershell.exe 4232 powershell.exe 3228 powershell.exe 3228 powershell.exe 3228 powershell.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2528 csrss.exe 2528 csrss.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2528 csrss.exe 2528 csrss.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2528 csrss.exe 2528 csrss.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe 2948 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exec21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 1992 powershell.exe Token: SeDebugPrivilege 536 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Token: SeImpersonatePrivilege 536 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe Token: SeDebugPrivilege 1428 powershell.exe Token: SeDebugPrivilege 428 powershell.exe Token: SeDebugPrivilege 2052 powershell.exe Token: SeDebugPrivilege 4944 powershell.exe Token: SeDebugPrivilege 4232 powershell.exe Token: SeDebugPrivilege 3228 powershell.exe Token: SeSystemEnvironmentPrivilege 2528 csrss.exe Token: SeSecurityPrivilege 4632 sc.exe Token: SeSecurityPrivilege 4632 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exec21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 536 wrote to memory of 1992 536 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 87 PID 536 wrote to memory of 1992 536 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 87 PID 536 wrote to memory of 1992 536 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 87 PID 4040 wrote to memory of 1428 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 96 PID 4040 wrote to memory of 1428 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 96 PID 4040 wrote to memory of 1428 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 96 PID 4040 wrote to memory of 4232 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 132 PID 4040 wrote to memory of 4232 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 132 PID 4232 wrote to memory of 2196 4232 cmd.exe 103 PID 4232 wrote to memory of 2196 4232 cmd.exe 103 PID 4040 wrote to memory of 428 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 104 PID 4040 wrote to memory of 428 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 104 PID 4040 wrote to memory of 428 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 104 PID 4040 wrote to memory of 2052 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 123 PID 4040 wrote to memory of 2052 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 123 PID 4040 wrote to memory of 2052 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 123 PID 4040 wrote to memory of 2528 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 110 PID 4040 wrote to memory of 2528 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 110 PID 4040 wrote to memory of 2528 4040 c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe 110 PID 2528 wrote to memory of 4944 2528 csrss.exe 111 PID 2528 wrote to memory of 4944 2528 csrss.exe 111 PID 2528 wrote to memory of 4944 2528 csrss.exe 111 PID 2528 wrote to memory of 4232 2528 csrss.exe 132 PID 2528 wrote to memory of 4232 2528 csrss.exe 132 PID 2528 wrote to memory of 4232 2528 csrss.exe 132 PID 2528 wrote to memory of 3228 2528 csrss.exe 119 PID 2528 wrote to memory of 3228 2528 csrss.exe 119 PID 2528 wrote to memory of 3228 2528 csrss.exe 119 PID 2528 wrote to memory of 2948 2528 csrss.exe 121 PID 2528 wrote to memory of 2948 2528 csrss.exe 121 PID 3480 wrote to memory of 1852 3480 windefender.exe 127 PID 3480 wrote to memory of 1852 3480 windefender.exe 127 PID 3480 wrote to memory of 1852 3480 windefender.exe 127 PID 1852 wrote to memory of 4632 1852 cmd.exe 128 PID 1852 wrote to memory of 4632 1852 cmd.exe 128 PID 1852 wrote to memory of 4632 1852 cmd.exe 128 -
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\c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe"C:\Users\Admin\AppData\Local\Temp\c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:536 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1992
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C:\Users\Admin\AppData\Local\Temp\c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.exe"C:\Users\Admin\AppData\Local\Temp\c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601.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:4040 -
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:1428
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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:4232 -
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:2196
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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:428
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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:2052
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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:2528 -
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:4944
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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:3988
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1276
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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:4232
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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:3228
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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:2948
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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:2052
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3480 -
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:1852 -
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:4632
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1936
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C:\Windows\system32\backgroundTaskHost.exe"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca1⤵PID:4232
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
MD5dc11c23e2c2a7ded41d4175392d178a9
SHA116736b9ce7e33eb5d298683b05d3549e068d9ec1
SHA2561baa3b42e64775c968f227f1a0e120f7f57b51ab939a3b57a9b2118f46c27fe9
SHA512d4a9f557fe61549fe6059e5132c86fb8d8b2b54035e9de0e53e90ced206ed746278e4ab52fe1750034be50fcd7abd361e01d0ac67515e7b733dc5f5515a4b5a9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54401e773673cd4b5808742a1d7ff39a6
SHA13df5227ecc0332b40262ee6b550d5a71d57750f5
SHA2567f893f9d1fe3c8afd9c4bd4ed5ba9df4fc794da9609ca803d83b2e8505c579e4
SHA51265e0880670e3d9ea102ce555756df6a1e7e3946eac527c2390634a16700e7a735a40a5ec7f975790a7ee2cf1087abd58d1cfeabc07a08d40ba0c13eb9b4dfd36
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e7f263f25aa87e4c88e0e5e4220cf8e7
SHA1d48811be0f5c09a66ab86cdbe0bcfccd08619b42
SHA256dea4b086458450862ef969654166cb0a2f14a4313b08d9b946c4bb83014fcb92
SHA512d411de4e199004b12cf68e91b0452e142e1689379c60dc842ce4ded4c756eeece8082e5aae324d700c3c0f2cf63e7f48f44118a64b3be91d68e726e2b5cd338a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55e69dd9d2edc324906e5c0e5c0a89ede
SHA1b571b0bb604b35e8b6dadb0f7f7392615fee0a85
SHA256a8e1a70ba2a60180dddb248384aedb2981f671488c1bf49bfc404fdced018794
SHA512bafef94f80d59fdf30df7c9cf57dd06a1dbcd2c8413d6e92da02c1c8d9d55020a55babe7863d95085aae2c23b672f6ffa575fe8e84ce9e12d6b62174185fe04c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD529cbf3f9a692d38327454817489e1c7f
SHA1b65fb310f122cb7377b3abcd4b953c58990420b0
SHA256e6c56d0b44d171c8772763b5a5f842cfe6a2a2ac6bfd2061cc1f5516e59cc2cf
SHA5122eaeab056a38a0c8df4ba36ffcd82a316ad8dd5688fa170db80e5818464808a2b1eed0fc2643d151ecf77c3dcd77e8ac7769d4f6a1e2cc3d9b52aac70b99a4ff
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Filesize
4.1MB
MD53f2d5b5b9aeadc636dbf6ea91c17c16f
SHA1c1cc44feff2001f206f488898546827c6f8727d6
SHA256c21ef752a75a4589bd911b41e893846eb2589fb386606e7000472e714c83b601
SHA512da9b633b0bcc5154ae2a9f7423210bb80bff599d30ee29866c0924cb2cd591881c06d11c5c3b799468972f3b089387fc6ba2a19449647e22c1b69303784c1ddb
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec