Analysis
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max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
23-05-2024 03:35
Static task
static1
Behavioral task
behavioral1
Sample
83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe
Resource
win7-20240221-en
General
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Target
83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe
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Size
4.1MB
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MD5
27d01600bd3dc1ec2f1eb16bea1db760
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SHA1
924553c3d344d884e6f3f5f438be26976178083e
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SHA256
83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5
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SHA512
348bf2924303d7b9c98e73ccf4ea3af9dfd0a9b531315a4910f4976aa345ce07f334b6e9f9a695e76e679c547119de766638d38dde85eaffded0741d51354d2d
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SSDEEP
98304:AcO3d23DP4WvcTQUVFyLidGODnX7vlp0fAiBu1UOo5GU75c1WMsxQ:AcO3d2wQ4Q8FyLwnXJ+AxvtU75c1js+
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/1036-2-0x0000000004BF0000-0x00000000054DB000-memory.dmp family_glupteba behavioral2/memory/1036-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1036-117-0x0000000004BF0000-0x00000000054DB000-memory.dmp family_glupteba behavioral2/memory/1036-116-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2036-133-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/1036-172-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4016-211-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4016-218-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4016-220-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4016-222-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4016-224-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4016-226-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4016-228-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4016-230-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4016-232-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4016-234-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4016-236-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4016-238-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4016-240-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 1492 netsh.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid Process 4016 csrss.exe 2648 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe -
Drops file in Windows directory 2 IoCs
Processes:
83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exedescription ioc Process File opened for modification C:\Windows\rss 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe File created C:\Windows\rss\csrss.exe 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 988 powershell.exe 2972 powershell.exe 1592 powershell.exe 5048 powershell.exe 5080 powershell.exe 3332 powershell.exe 2912 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 2376 schtasks.exe 2060 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exe83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA 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\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.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\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.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\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.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\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exepowershell.exe83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 1592 powershell.exe 1592 powershell.exe 1036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 1036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 5048 powershell.exe 5048 powershell.exe 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 5080 powershell.exe 5080 powershell.exe 5080 powershell.exe 3332 powershell.exe 3332 powershell.exe 3332 powershell.exe 2912 powershell.exe 2912 powershell.exe 988 powershell.exe 988 powershell.exe 2972 powershell.exe 2972 powershell.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 4016 csrss.exe 4016 csrss.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 4016 csrss.exe 4016 csrss.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe 2648 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exe83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid Process Token: SeDebugPrivilege 1592 powershell.exe Token: SeDebugPrivilege 1036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Token: SeImpersonatePrivilege 1036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe Token: SeDebugPrivilege 5048 powershell.exe Token: SeDebugPrivilege 5080 powershell.exe Token: SeDebugPrivilege 3332 powershell.exe Token: SeDebugPrivilege 2912 powershell.exe Token: SeDebugPrivilege 988 powershell.exe Token: SeDebugPrivilege 2972 powershell.exe Token: SeSystemEnvironmentPrivilege 4016 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.execmd.execsrss.exedescription pid Process procid_target PID 1036 wrote to memory of 1592 1036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 84 PID 1036 wrote to memory of 1592 1036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 84 PID 1036 wrote to memory of 1592 1036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 84 PID 2036 wrote to memory of 5048 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 95 PID 2036 wrote to memory of 5048 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 95 PID 2036 wrote to memory of 5048 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 95 PID 2036 wrote to memory of 2884 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 99 PID 2036 wrote to memory of 2884 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 99 PID 2884 wrote to memory of 1492 2884 cmd.exe 101 PID 2884 wrote to memory of 1492 2884 cmd.exe 101 PID 2036 wrote to memory of 5080 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 102 PID 2036 wrote to memory of 5080 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 102 PID 2036 wrote to memory of 5080 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 102 PID 2036 wrote to memory of 3332 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 104 PID 2036 wrote to memory of 3332 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 104 PID 2036 wrote to memory of 3332 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 104 PID 2036 wrote to memory of 4016 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 106 PID 2036 wrote to memory of 4016 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 106 PID 2036 wrote to memory of 4016 2036 83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe 106 PID 4016 wrote to memory of 2912 4016 csrss.exe 107 PID 4016 wrote to memory of 2912 4016 csrss.exe 107 PID 4016 wrote to memory of 2912 4016 csrss.exe 107 PID 4016 wrote to memory of 988 4016 csrss.exe 113 PID 4016 wrote to memory of 988 4016 csrss.exe 113 PID 4016 wrote to memory of 988 4016 csrss.exe 113 PID 4016 wrote to memory of 2972 4016 csrss.exe 115 PID 4016 wrote to memory of 2972 4016 csrss.exe 115 PID 4016 wrote to memory of 2972 4016 csrss.exe 115 PID 4016 wrote to memory of 2648 4016 csrss.exe 117 PID 4016 wrote to memory of 2648 4016 csrss.exe 117 -
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\83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe"C:\Users\Admin\AppData\Local\Temp\83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1036 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1592
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C:\Users\Admin\AppData\Local\Temp\83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe"C:\Users\Admin\AppData\Local\Temp\83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.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:2036 -
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:5048
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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:2884 -
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:1492
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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:5080
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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:3332
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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.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4016 -
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:2912
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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:2376
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2848
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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:988
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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:2972
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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:2648
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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:2060
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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
MD53209879086f8cb137e67ec794de82adf
SHA1f44434696a88c44a06162faa1b69331bde383a54
SHA256adbe77b0c1a98b823407c2331d2d311dcde6726dbbc8724772c6d570f09a4991
SHA512a928be18c8b3c50b26aa5a3d2a311aaaf2cbad40f03299952930c128754b3d4425f08810a9f417ee6b91e2f640d7f1b761e7fae2e5aa9fe1264f1d633466de8f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5472cf810e0f1e2c6cffe5f54dea698c1
SHA13d53fc89a3d0c31986370779b2f781d4b87fa2e3
SHA2562e3dff01757b82cc9fa83ae3303f6b52c50a0a156a15e0edd309039b83a32990
SHA512d2d3681eca4fdd9e498559ea104183b4d3dfae2211973857bfcb22e1aa227a7de1bb30c03a35fa15d0ab474bd90c55e9080d6c3796b13080ce4a4de3edf3e634
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD528ee97dfb6bd026fec603f6c79e45171
SHA1974c2b79954c986248b0f367020cbebbea09ae32
SHA256604b99b083d29ec54d317efeb921750fae56bf2a35c500ba172322e1b546b32e
SHA5124e3eaa4eb38da823e2c18ff15ee6e60ff7264450f81ffb858c4bf05cc724c5d664f991b3dcd0589f3493a3115b1c95befd93a711eee092b2fa067635c90e0537
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fb5b7e79509c54cebd8324e561fb0c2f
SHA15630b4a3d611134cea44afbe16a4dc0da8479402
SHA25698e0c59460c6e4115aad136e3d1c7600ab7139f00830817a000db744ad516aad
SHA512276aaaa5cf3fab187e3cca2537d41bcb6001378822783ea3b6bd0680dd6acc1462b6881543ea06f8c915053f96400bf2a0584ef29906766e6fcadc5c0a6518af
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD532a7492ed1ebf0242c109ba30ae3702d
SHA13443408a6378393ff8b25d8bde88621006488c22
SHA256d8860558cc1ee2d62ee7ba57c1cee1275787c6a8e93e8250dbeca1c472eaa82e
SHA51283b9f52f1cca2cf541e0809f0ee42282060ca6aaefee6a5311067828ce7f994063f56374239d39b3a739e756bc940f122305f7c84f408cc20ad8517f3f883d6a
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Filesize
4.1MB
MD527d01600bd3dc1ec2f1eb16bea1db760
SHA1924553c3d344d884e6f3f5f438be26976178083e
SHA25683d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5
SHA512348bf2924303d7b9c98e73ccf4ea3af9dfd0a9b531315a4910f4976aa345ce07f334b6e9f9a695e76e679c547119de766638d38dde85eaffded0741d51354d2d