Analysis
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max time kernel
150s -
max time network
129s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 14:08
Static task
static1
Behavioral task
behavioral1
Sample
941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe
Resource
win10v2004-20240508-en
General
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Target
941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe
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Size
4.1MB
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MD5
73938263e958c44355f8200f83e1f0ce
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SHA1
7b91f4bb8e230c33ac00fb47af50a04afc4a028f
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SHA256
941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431
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SHA512
a1ff1a0c46544b59df31235deb311c20999a7f7257a44766de8f0460d4e3f9e926fdf6c5ff43b2b152bbf3cc60c10780752831d35a27229940c05baad333f2bf
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SSDEEP
98304:IuOdAWE/bfbxbxBimum48oJjLrUZhWcgWy75MTps2CObMUZCzBSf:IuOpIddBi3V8Ojm7gWylM939CK
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/2500-2-0x0000000004B10000-0x00000000053FB000-memory.dmp family_glupteba behavioral2/memory/2500-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2500-73-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/2500-109-0x0000000004B10000-0x00000000053FB000-memory.dmp family_glupteba behavioral2/memory/3620-124-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/2500-136-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1556-195-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1556-212-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1556-214-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1556-217-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1556-219-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1556-222-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1556-227-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1556-229-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1556-231-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1556-234-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1556-239-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/1556-241-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 3696 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 1556 csrss.exe 2480 injector.exe 2188 windefender.exe 792 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002aa22-204.dat upx behavioral2/memory/2188-205-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/792-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2188-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/792-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/792-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\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 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 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:
941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe -
Drops file in Windows directory 4 IoCs
Processes:
941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe File created C:\Windows\rss\csrss.exe 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.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 1416 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4676 powershell.exe 684 powershell.exe 3464 powershell.exe 2840 powershell.exe 4416 powershell.exe 3616 powershell.exe 940 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 4788 schtasks.exe 644 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exepowershell.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.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\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.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,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.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\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard Time" windefender.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\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA 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\2a\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-51 = "Greenland Daylight Time" windefender.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\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exepowershell.exe941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4416 powershell.exe 4416 powershell.exe 2500 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 2500 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 3616 powershell.exe 3616 powershell.exe 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 940 powershell.exe 940 powershell.exe 4676 powershell.exe 4676 powershell.exe 684 powershell.exe 684 powershell.exe 3464 powershell.exe 3464 powershell.exe 2840 powershell.exe 2840 powershell.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 1556 csrss.exe 1556 csrss.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 1556 csrss.exe 1556 csrss.exe 2480 injector.exe 2480 injector.exe 1556 csrss.exe 1556 csrss.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe 2480 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4416 powershell.exe Token: SeDebugPrivilege 2500 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Token: SeImpersonatePrivilege 2500 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Token: SeDebugPrivilege 3616 powershell.exe Token: SeDebugPrivilege 940 powershell.exe Token: SeDebugPrivilege 4676 powershell.exe Token: SeDebugPrivilege 684 powershell.exe Token: SeDebugPrivilege 3464 powershell.exe Token: SeDebugPrivilege 2840 powershell.exe Token: SeSystemEnvironmentPrivilege 1556 csrss.exe Token: SeSecurityPrivilege 1416 sc.exe Token: SeSecurityPrivilege 1416 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 2500 wrote to memory of 4416 2500 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 81 PID 2500 wrote to memory of 4416 2500 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 81 PID 2500 wrote to memory of 4416 2500 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 81 PID 3620 wrote to memory of 3616 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 87 PID 3620 wrote to memory of 3616 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 87 PID 3620 wrote to memory of 3616 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 87 PID 3620 wrote to memory of 1936 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 89 PID 3620 wrote to memory of 1936 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 89 PID 1936 wrote to memory of 3696 1936 cmd.exe 91 PID 1936 wrote to memory of 3696 1936 cmd.exe 91 PID 3620 wrote to memory of 940 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 92 PID 3620 wrote to memory of 940 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 92 PID 3620 wrote to memory of 940 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 92 PID 3620 wrote to memory of 4676 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 94 PID 3620 wrote to memory of 4676 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 94 PID 3620 wrote to memory of 4676 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 94 PID 3620 wrote to memory of 1556 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 96 PID 3620 wrote to memory of 1556 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 96 PID 3620 wrote to memory of 1556 3620 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 96 PID 1556 wrote to memory of 684 1556 csrss.exe 97 PID 1556 wrote to memory of 684 1556 csrss.exe 97 PID 1556 wrote to memory of 684 1556 csrss.exe 97 PID 1556 wrote to memory of 3464 1556 csrss.exe 102 PID 1556 wrote to memory of 3464 1556 csrss.exe 102 PID 1556 wrote to memory of 3464 1556 csrss.exe 102 PID 1556 wrote to memory of 2840 1556 csrss.exe 105 PID 1556 wrote to memory of 2840 1556 csrss.exe 105 PID 1556 wrote to memory of 2840 1556 csrss.exe 105 PID 1556 wrote to memory of 2480 1556 csrss.exe 107 PID 1556 wrote to memory of 2480 1556 csrss.exe 107 PID 2188 wrote to memory of 4260 2188 windefender.exe 113 PID 2188 wrote to memory of 4260 2188 windefender.exe 113 PID 2188 wrote to memory of 4260 2188 windefender.exe 113 PID 4260 wrote to memory of 1416 4260 cmd.exe 114 PID 4260 wrote to memory of 1416 4260 cmd.exe 114 PID 4260 wrote to memory of 1416 4260 cmd.exe 114 -
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\941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe"C:\Users\Admin\AppData\Local\Temp\941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2500 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4416
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C:\Users\Admin\AppData\Local\Temp\941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe"C:\Users\Admin\AppData\Local\Temp\941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.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:3620 -
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:3616
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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:1936 -
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:3696
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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:940
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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:4676
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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:1556 -
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:684
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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:4788
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3396
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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:3464
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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:2840
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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:2480
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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:644
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2188 -
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:4260 -
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:1416
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:792
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57c47016df1c71623d7248a3e623d8b94
SHA16c9c978486ead884f74f75764b6268325b8c9976
SHA256c4d4ef9229629fd398f8deba57bffbfd393db129b4f1a09c89b37c328028594e
SHA512e69c14f929bf476cf3a19fa9981f77211862bada999c2b53488b0c7079a1a71c41dc496222b310ae66a39c5d9d64d9ef46915e47c4439fd64599c5a1b1780fec
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53fb1cbe0c8544455db6790dbcc2de976
SHA10cdeeba27a4f7bd2be189ec855be5ddaee7b4208
SHA256d2144d774e3a510bd7f5ebc0da7fcc34a9ebfbc646a5a3e88e9e3b74a3fdcfef
SHA51283bd8e726b432ca9e3f0003060334083d90ba03b2072ab6cd9c3b5c8fb2f2627f59238a4dae5795258c92671a9527103406817f3f8e52ff22ef329bc1119c759
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5889132e3d7fc966885bd093e4c6132fe
SHA126e544b4514320b6787a3acf9585815799033ab8
SHA2564587e3332de02814d10d2f037deca69a003be9df9dd3233b6c64895b726f60c6
SHA5124fa3556ae184836895f5db25cf57d898f4d2e3d4a520d7a4154fa123905a6cd19733a7ecf518ed617c83ba8624712f93fa0b94a4bb60a784b7b3a773eeb45175
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c232ccf5a4a267c64d12d0727a9bde65
SHA18c2b8f9ba78fc4365d034355fba28daa4e67815d
SHA256c9b50c2df02ee6b1264abae5366ec98fced118fe066c721cdd00162b28ca93a3
SHA5124b3c5b5936b6c66afbb7ce62ebcfd476c4c1cfa6c41985f2752e46c0b2834a30a70f866d051b7644d3b86156f88aad39c31b6eac2b23337e1ccb037f8f8b842e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b1a50ef705bc5d786ec4c237b2da94ca
SHA1c5cd467418e235dbb885e86b27784991017d6779
SHA2569060e45562a6d340ef990d0d52d3365b05c23414c957a040ecf5bfd6c75254d0
SHA51253ce3938fe6d49207f4016f8a1ab9d31e2530449b6cb74da5663e145ea297136a12a58bb3e43462275f666e3d32d56919a34ae56d6c5b46a6653033b70326304
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Filesize
4.1MB
MD573938263e958c44355f8200f83e1f0ce
SHA17b91f4bb8e230c33ac00fb47af50a04afc4a028f
SHA256941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431
SHA512a1ff1a0c46544b59df31235deb311c20999a7f7257a44766de8f0460d4e3f9e926fdf6c5ff43b2b152bbf3cc60c10780752831d35a27229940c05baad333f2bf
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec