Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
04/04/2024, 17:30
Static task
static1
Behavioral task
behavioral1
Sample
03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe
Resource
win10v2004-20240226-en
General
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Target
03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe
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Size
4.1MB
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MD5
673db3b71dfa54a2cda20f65f26795ad
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SHA1
70281af0cdc83986fb200ff1d3f2f2a47e03d86f
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SHA256
03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0
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SHA512
afb63ce97a95a918c17a20f7ef755086c686115fc21e9354a8db2635203d8073ee09ca562d96e12de2d4cff62e5d77a8dfa6a0718bde7db95e6cb2994a366e79
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SSDEEP
98304:DH5J7CzszSbiwn7GrcYbqmT2oxXGbns7pL8WqJWTgfK:dMU4iw7Yx2bns7pLfTgfK
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral1/memory/4880-2-0x00000000052E0000-0x0000000005BCB000-memory.dmp family_glupteba behavioral1/memory/4880-3-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral1/memory/4880-54-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral1/memory/4880-56-0x00000000052E0000-0x0000000005BCB000-memory.dmp family_glupteba behavioral1/memory/1496-68-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral1/memory/1496-145-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral1/memory/1496-155-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral1/memory/1100-256-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral1/memory/1100-267-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral1/memory/1100-271-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral1/memory/1100-275-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral1/memory/1100-279-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral1/memory/1100-283-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral1/memory/1100-287-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral1/memory/1100-291-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral1/memory/1100-295-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral1/memory/1100-299-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba behavioral1/memory/1100-303-0x0000000000400000-0x0000000002F43000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4332 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1100 csrss.exe 100 injector.exe 2852 windefender.exe 3960 windefender.exe -
resource yara_rule behavioral1/files/0x0009000000023218-260.dat upx behavioral1/memory/2852-264-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3960-270-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3960-277-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.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.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description 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.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe File created C:\Windows\rss\csrss.exe 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.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.
pid Process 4524 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4180 schtasks.exe 2192 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.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\22\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2182 = "Astrakhan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates 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\22\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.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\22\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.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\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-651 = "AUS Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs 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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2084 powershell.exe 2084 powershell.exe 4880 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 4880 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 4132 powershell.exe 4132 powershell.exe 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 2072 powershell.exe 2072 powershell.exe 1172 powershell.exe 1172 powershell.exe 2008 powershell.exe 2008 powershell.exe 2120 powershell.exe 2120 powershell.exe 4148 powershell.exe 4148 powershell.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 1100 csrss.exe 1100 csrss.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 1100 csrss.exe 1100 csrss.exe 100 injector.exe 100 injector.exe 1100 csrss.exe 1100 csrss.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe 100 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2084 powershell.exe Token: SeDebugPrivilege 4880 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Token: SeImpersonatePrivilege 4880 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe Token: SeDebugPrivilege 4132 powershell.exe Token: SeDebugPrivilege 2072 powershell.exe Token: SeDebugPrivilege 1172 powershell.exe Token: SeDebugPrivilege 2008 powershell.exe Token: SeDebugPrivilege 2120 powershell.exe Token: SeDebugPrivilege 4148 powershell.exe Token: SeSystemEnvironmentPrivilege 1100 csrss.exe Token: SeSecurityPrivilege 4524 sc.exe Token: SeSecurityPrivilege 4524 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4880 wrote to memory of 2084 4880 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 90 PID 4880 wrote to memory of 2084 4880 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 90 PID 4880 wrote to memory of 2084 4880 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 90 PID 1496 wrote to memory of 4132 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 100 PID 1496 wrote to memory of 4132 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 100 PID 1496 wrote to memory of 4132 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 100 PID 1496 wrote to memory of 5040 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 102 PID 1496 wrote to memory of 5040 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 102 PID 5040 wrote to memory of 4332 5040 cmd.exe 104 PID 5040 wrote to memory of 4332 5040 cmd.exe 104 PID 1496 wrote to memory of 2072 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 105 PID 1496 wrote to memory of 2072 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 105 PID 1496 wrote to memory of 2072 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 105 PID 1496 wrote to memory of 1172 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 107 PID 1496 wrote to memory of 1172 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 107 PID 1496 wrote to memory of 1172 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 107 PID 1496 wrote to memory of 1100 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 109 PID 1496 wrote to memory of 1100 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 109 PID 1496 wrote to memory of 1100 1496 03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe 109 PID 1100 wrote to memory of 2008 1100 csrss.exe 111 PID 1100 wrote to memory of 2008 1100 csrss.exe 111 PID 1100 wrote to memory of 2008 1100 csrss.exe 111 PID 1100 wrote to memory of 2120 1100 csrss.exe 117 PID 1100 wrote to memory of 2120 1100 csrss.exe 117 PID 1100 wrote to memory of 2120 1100 csrss.exe 117 PID 1100 wrote to memory of 4148 1100 csrss.exe 119 PID 1100 wrote to memory of 4148 1100 csrss.exe 119 PID 1100 wrote to memory of 4148 1100 csrss.exe 119 PID 1100 wrote to memory of 100 1100 csrss.exe 121 PID 1100 wrote to memory of 100 1100 csrss.exe 121 PID 2852 wrote to memory of 4356 2852 windefender.exe 127 PID 2852 wrote to memory of 4356 2852 windefender.exe 127 PID 2852 wrote to memory of 4356 2852 windefender.exe 127 PID 4356 wrote to memory of 4524 4356 cmd.exe 128 PID 4356 wrote to memory of 4524 4356 cmd.exe 128 PID 4356 wrote to memory of 4524 4356 cmd.exe 128 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe"C:\Users\Admin\AppData\Local\Temp\03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4880 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2084
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C:\Users\Admin\AppData\Local\Temp\03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.exe"C:\Users\Admin\AppData\Local\Temp\03c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0.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:1496 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4132
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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:5040 -
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:4332
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2072
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1172
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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:1100 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2008
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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:4180
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2112
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2120
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4148
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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:100
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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:2192
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2852 -
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:4356 -
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:4524
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3960
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
MD558ba568bf06daab69ba6fa40868575e1
SHA1848ac5d0cf41974f82e88230544874a95d3d7605
SHA256918b588f721fde7c624f3f28d33a200c91422a3627bc77455a3eee3568a30d47
SHA5126978bd8d2cc8e5f0f24ff8bee7044842ff72537b14f4260734072e392f9eb3cbadc19126b3baa9d6df28665b09819b978691b7bb5cf53c39f71b4756dfbee4da
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD501595af44fe1692d54064fc60a671854
SHA12245344540ba01c0afa1ccd83f5bbb2fbd43dcd5
SHA256e13ece74c436d7bfcb68c37d08ff2d8222af76f4203f3c6ae41859a67bbbabd4
SHA512d2531e4470c09ab3ef2091842d83b7f50686505dae59cf71f227bb6687c2d40f0c6a3786b250f4c75b1196ce72e8ab0b351f5993cf509ec4da321ff50e37aec8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d8daf5433474fd116961dd0ca1f15db8
SHA11e4a3473070fe03beb6b642107b747528ff85b53
SHA2560a70b73d8cb2dcdb8cea96b95865876f0e2924ebadd3fec88eb769a19efe1b2b
SHA5126d666485c7bcfd05bf14192cf445643d5926ced522034d90a1f7090dc701c5e2f5202f8d7896111e3cdbe4101ab5380ce5778eaab10a9a28b8ea52e3a05eef86
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51ab6cbdd457e92a2ad190d574f30347d
SHA1b8aef7e9011824324a82bdce01dff76d7aaab1ed
SHA256b321af36190683ff876770268c78017b224c3cc3289df98d17e9abf6322bb6ad
SHA5124b1fef5cdd2c0c5e09a77556e84433cf4ef50b2db92fa244ca5095c8ffd02393e27bf4486ddc6c9c0cfdd076479fe4b22f550f5421e4165e96b4fcd52d8f8727
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5809dfa338672a291249261283b32feff
SHA1dba62718ee317f4c511d9989f30a2daedc5f1281
SHA2562eac51bc28774b19483a8a0ee01c5498e87c712c1c616caf370c95b7dd49a676
SHA512e6ca84b070199872bc4d92fb22616bc1e97d4305c5ae6b960c87df9c97527988b2f33b67c59914e22e556e8a692bdb01a6e4c64a6812861fecc864d27c56c511
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Filesize
4.1MB
MD5673db3b71dfa54a2cda20f65f26795ad
SHA170281af0cdc83986fb200ff1d3f2f2a47e03d86f
SHA25603c770bcfca4b8e8b7f5f204595b3f97f504597b8d525cde8b83e6bd0426dea0
SHA512afb63ce97a95a918c17a20f7ef755086c686115fc21e9354a8db2635203d8073ee09ca562d96e12de2d4cff62e5d77a8dfa6a0718bde7db95e6cb2994a366e79
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec