Analysis
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max time kernel
149s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-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 19 IoCs
Processes:
resource yara_rule behavioral1/memory/2644-2-0x00000000048B0000-0x000000000519B000-memory.dmp family_glupteba behavioral1/memory/2644-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2644-80-0x00000000048B0000-0x000000000519B000-memory.dmp family_glupteba behavioral1/memory/2644-79-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/2644-128-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4800-127-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4800-207-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4736-215-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4736-227-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4736-230-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4736-234-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4736-238-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4736-242-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4736-247-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4736-251-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4736-254-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4736-258-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4736-263-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4736-267-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 4532 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 4736 csrss.exe 2908 injector.exe 4524 windefender.exe 2668 windefender.exe -
Processes:
resource yara_rule behavioral1/files/0x00090000000233c1-219.dat upx behavioral1/memory/4524-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2668-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4524-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2668-231-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2668-239-0x0000000000400000-0x00000000008DF000-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-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\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\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 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 -
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 4612 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 2448 powershell.exe 4904 powershell.exe 4796 powershell.exe 700 powershell.exe 2476 powershell.exe 4544 powershell.exe 4904 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 3092 schtasks.exe 4948 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exewindefender.exe941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.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" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates 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\2a\52C64B7E\@tzres.dll,-152 = "Central America Standard 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,-201 = "US Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-32 = "Mid-Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exepowershell.exe941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4904 powershell.exe 4904 powershell.exe 2644 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 2644 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 4796 powershell.exe 4796 powershell.exe 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 700 powershell.exe 700 powershell.exe 2476 powershell.exe 2476 powershell.exe 4544 powershell.exe 4544 powershell.exe 4904 powershell.exe 4904 powershell.exe 2448 powershell.exe 2448 powershell.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 4736 csrss.exe 4736 csrss.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 4736 csrss.exe 4736 csrss.exe 2908 injector.exe 2908 injector.exe 4736 csrss.exe 4736 csrss.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe 2908 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4904 powershell.exe Token: SeDebugPrivilege 2644 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Token: SeImpersonatePrivilege 2644 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe Token: SeDebugPrivilege 4796 powershell.exe Token: SeDebugPrivilege 700 powershell.exe Token: SeDebugPrivilege 2476 powershell.exe Token: SeDebugPrivilege 4544 powershell.exe Token: SeDebugPrivilege 4904 powershell.exe Token: SeDebugPrivilege 2448 powershell.exe Token: SeSystemEnvironmentPrivilege 4736 csrss.exe Token: SeSecurityPrivilege 4612 sc.exe Token: SeSecurityPrivilege 4612 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 2644 wrote to memory of 4904 2644 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 82 PID 2644 wrote to memory of 4904 2644 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 82 PID 2644 wrote to memory of 4904 2644 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 82 PID 4800 wrote to memory of 4796 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 91 PID 4800 wrote to memory of 4796 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 91 PID 4800 wrote to memory of 4796 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 91 PID 4800 wrote to memory of 3736 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 94 PID 4800 wrote to memory of 3736 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 94 PID 3736 wrote to memory of 4532 3736 cmd.exe 96 PID 3736 wrote to memory of 4532 3736 cmd.exe 96 PID 4800 wrote to memory of 700 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 97 PID 4800 wrote to memory of 700 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 97 PID 4800 wrote to memory of 700 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 97 PID 4800 wrote to memory of 2476 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 99 PID 4800 wrote to memory of 2476 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 99 PID 4800 wrote to memory of 2476 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 99 PID 4800 wrote to memory of 4736 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 101 PID 4800 wrote to memory of 4736 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 101 PID 4800 wrote to memory of 4736 4800 941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431.exe 101 PID 4736 wrote to memory of 4544 4736 csrss.exe 102 PID 4736 wrote to memory of 4544 4736 csrss.exe 102 PID 4736 wrote to memory of 4544 4736 csrss.exe 102 PID 4736 wrote to memory of 4904 4736 csrss.exe 108 PID 4736 wrote to memory of 4904 4736 csrss.exe 108 PID 4736 wrote to memory of 4904 4736 csrss.exe 108 PID 4736 wrote to memory of 2448 4736 csrss.exe 110 PID 4736 wrote to memory of 2448 4736 csrss.exe 110 PID 4736 wrote to memory of 2448 4736 csrss.exe 110 PID 4736 wrote to memory of 2908 4736 csrss.exe 113 PID 4736 wrote to memory of 2908 4736 csrss.exe 113 PID 4524 wrote to memory of 4156 4524 windefender.exe 119 PID 4524 wrote to memory of 4156 4524 windefender.exe 119 PID 4524 wrote to memory of 4156 4524 windefender.exe 119 PID 4156 wrote to memory of 4612 4156 cmd.exe 120 PID 4156 wrote to memory of 4612 4156 cmd.exe 120 PID 4156 wrote to memory of 4612 4156 cmd.exe 120 -
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:2644 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4904
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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:4800 -
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:4796
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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:3736 -
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:4532
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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:700
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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:2476
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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:4736 -
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:4544
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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:3092
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:980
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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:4904
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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:2448
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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:2908
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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:4948
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4524 -
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:4156 -
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:4612
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2668
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51026bc8280be397bfde16936d273c55a
SHA1154321f613478b93042f488528b53b9b99ce6ce3
SHA256e94c2b962f9c1a52f02347aeff8ca8d432d3c461a3581b613e5e6be35b3472f1
SHA51229de16c0bbc016088ea3b46d6245b3320d87922ab3871d8de50a9aed9f205bc4a5f99fc6d97997b5dba4f4083c6d265c3e27c5f2d3e133d16326dd9187c14d45
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55892210972ba16cdf9997bb289759122
SHA1f4ce851055fec44518292a8c0e0ad277d3192111
SHA256d6100929b8605e3dbbc21b96c3018935a30ffe67e6dec906eb4b1cdee58752f9
SHA512682871045bc32601bd628a1e894703960286f4296450c19801aded66048a6f2b22ad1dc4c7a85972e5d5cd937b5344482f6606b7e152389afdbc1d73e4908126
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD515ad7c4ae857618292c20d8e4ffea9e7
SHA12c58c6c27246cfbf82f917bfc7fb1c568f09bcf8
SHA2560145bc37409b5ad07aff54804b4bbc4a92e6bd02173b014b54e333d6266b71f2
SHA5127ab10f39f5711be57426b2f59853add495c625adeefc9c3a2b04417bc89236a803ebd013e2b1e8a2b3c5ee9a3c3ab9cd6d785345b6b2a17cbde3e5ce1c9be6b5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ec04fbcbe028e519ae1e859297a03ac6
SHA1a3ab4c15d06f3a3255a321c8bfd22fe3415b74ac
SHA25617ecd2dad4d64e71c58475255fcf5dbdfe94443c3c72572d585acd471c6c68e0
SHA512911591efbb2ce4e580b717d872721aacf957fef273ebc49deedc1fa785b99aa364d1e5c4256bc619368346969c2ae68601e067cf5f006a3c71b7d84c2be28dc1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cf48968b96674cba69d1f168e23e30f5
SHA13283e36e45a4c64e6b061414ff9aa72988bf965e
SHA256f2a8ef3177eb46a9f2906b186f3a69ddf520b6c36b72b9166958d81717bc5c8a
SHA512c46018c958ec5b384e992a9163210922bbab0a08bd17db8d95344ad5e1a5e63bd15b1fc4e05c2e703c057053b6876011f553ea915b850c88477647392c05c440
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Filesize
4.1MB
MD573938263e958c44355f8200f83e1f0ce
SHA17b91f4bb8e230c33ac00fb47af50a04afc4a028f
SHA256941e5cdf351cdf1b73763e23f229ab3266553ba3b3e490886bd62e0fea4c2431
SHA512a1ff1a0c46544b59df31235deb311c20999a7f7257a44766de8f0460d4e3f9e926fdf6c5ff43b2b152bbf3cc60c10780752831d35a27229940c05baad333f2bf
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec