Analysis
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max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 11:34
Static task
static1
Behavioral task
behavioral1
Sample
bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe
Resource
win10v2004-20240508-en
General
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Target
bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe
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Size
4.1MB
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MD5
1250c2afc46194b4d63ca011316d2f28
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SHA1
2b1d8c1b13faca320cfeb1e3d3040407ff36f9d8
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SHA256
bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3
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SHA512
b4e394bb8dc1a336701a5c0aa14166f3ea2b6c7e9860e7d3d80d253eb2c5b4ed50b95518b609fe43d068f09d2f4dcebcf4c026e2a071a3ff3e1b62ee69eb14de
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SSDEEP
98304:2k/C6baF9NNXYvR+SQPyohxfWe3/GY9pAEj6B:2n6bazjovoyoHfX3/GYHq
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/3436-2-0x00000000044B0000-0x0000000004D9B000-memory.dmp family_glupteba behavioral2/memory/3436-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3436-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3436-54-0x00000000044B0000-0x0000000004D9B000-memory.dmp family_glupteba behavioral2/memory/3436-51-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3992-125-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1960-203-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1960-213-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1960-214-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1960-216-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1960-219-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1960-221-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1960-222-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1960-224-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1960-227-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1960-229-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1960-230-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1960-232-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1960-235-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 1864 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 1960 csrss.exe 3212 injector.exe 4020 windefender.exe 4308 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002a9d5-206.dat upx behavioral2/memory/4020-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4020-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4308-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4308-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4308-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\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 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 -
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:
bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe -
Drops file in Windows directory 4 IoCs
Processes:
bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe File created C:\Windows\rss\csrss.exe bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.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 3760 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4556 powershell.exe 2180 powershell.exe 232 powershell.exe 1212 powershell.exe 4644 powershell.exe 2548 powershell.exe 2900 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 2328 schtasks.exe 3888 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exebf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process 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\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-132 = "US Eastern 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\2a\52C64B7E\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.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\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.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\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs 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\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard 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" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-962 = "Paraguay Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exebf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exepowershell.exebf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 2180 powershell.exe 2180 powershell.exe 3436 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 3436 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 232 powershell.exe 232 powershell.exe 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 1212 powershell.exe 1212 powershell.exe 4644 powershell.exe 4644 powershell.exe 2548 powershell.exe 2548 powershell.exe 2900 powershell.exe 2900 powershell.exe 4556 powershell.exe 4556 powershell.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 1960 csrss.exe 1960 csrss.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 1960 csrss.exe 1960 csrss.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 1960 csrss.exe 1960 csrss.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe 3212 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exebf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 2180 powershell.exe Token: SeDebugPrivilege 3436 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Token: SeImpersonatePrivilege 3436 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe Token: SeDebugPrivilege 232 powershell.exe Token: SeDebugPrivilege 1212 powershell.exe Token: SeDebugPrivilege 4644 powershell.exe Token: SeDebugPrivilege 2548 powershell.exe Token: SeDebugPrivilege 2900 powershell.exe Token: SeDebugPrivilege 4556 powershell.exe Token: SeSystemEnvironmentPrivilege 1960 csrss.exe Token: SeSecurityPrivilege 3760 sc.exe Token: SeSecurityPrivilege 3760 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exebf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 3436 wrote to memory of 2180 3436 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 82 PID 3436 wrote to memory of 2180 3436 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 82 PID 3436 wrote to memory of 2180 3436 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 82 PID 3992 wrote to memory of 232 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 87 PID 3992 wrote to memory of 232 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 87 PID 3992 wrote to memory of 232 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 87 PID 3992 wrote to memory of 3444 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 89 PID 3992 wrote to memory of 3444 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 89 PID 3444 wrote to memory of 1864 3444 cmd.exe 91 PID 3444 wrote to memory of 1864 3444 cmd.exe 91 PID 3992 wrote to memory of 1212 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 92 PID 3992 wrote to memory of 1212 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 92 PID 3992 wrote to memory of 1212 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 92 PID 3992 wrote to memory of 4644 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 94 PID 3992 wrote to memory of 4644 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 94 PID 3992 wrote to memory of 4644 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 94 PID 3992 wrote to memory of 1960 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 96 PID 3992 wrote to memory of 1960 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 96 PID 3992 wrote to memory of 1960 3992 bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe 96 PID 1960 wrote to memory of 2548 1960 csrss.exe 97 PID 1960 wrote to memory of 2548 1960 csrss.exe 97 PID 1960 wrote to memory of 2548 1960 csrss.exe 97 PID 1960 wrote to memory of 2900 1960 csrss.exe 103 PID 1960 wrote to memory of 2900 1960 csrss.exe 103 PID 1960 wrote to memory of 2900 1960 csrss.exe 103 PID 1960 wrote to memory of 4556 1960 csrss.exe 105 PID 1960 wrote to memory of 4556 1960 csrss.exe 105 PID 1960 wrote to memory of 4556 1960 csrss.exe 105 PID 1960 wrote to memory of 3212 1960 csrss.exe 107 PID 1960 wrote to memory of 3212 1960 csrss.exe 107 PID 4020 wrote to memory of 4464 4020 windefender.exe 113 PID 4020 wrote to memory of 4464 4020 windefender.exe 113 PID 4020 wrote to memory of 4464 4020 windefender.exe 113 PID 4464 wrote to memory of 3760 4464 cmd.exe 114 PID 4464 wrote to memory of 3760 4464 cmd.exe 114 PID 4464 wrote to memory of 3760 4464 cmd.exe 114 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe"C:\Users\Admin\AppData\Local\Temp\bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3436 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2180
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C:\Users\Admin\AppData\Local\Temp\bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.exe"C:\Users\Admin\AppData\Local\Temp\bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3.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:3992 -
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:232
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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:3444 -
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:1864
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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:1212
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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:4644
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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:1960 -
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:2548
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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:3888
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4972
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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:2900
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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:4556
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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:3212
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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:2328
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4020 -
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:4464 -
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:3760
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4308
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54c04a687d4e40349c761907543e52227
SHA102ac280a1628fe38d3d194a9741dbe29f3f6bcad
SHA2565e9ec2b05547e433b2361711068e7998ae2128b31a79568ac9e02e65ed66c45f
SHA5120c0d7f7054edffd6113a4ed6ecef75d721f8b59c7f80cb0d0cfdde1e0d6780609b6b66ad2fb473fffd28a9e33b53597f0a304f6343125760861ce3a18d122539
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD573963073f3e835796797531b9aa9ca85
SHA1316de904a137c8687604f73478b417cc3ecd4af6
SHA25659268e2011b56063d80b46f89892a30783ea939e42c65b9121ce6300d79f5257
SHA512be15aafdf9eca3216b57c9bdbaeebcf5c97801abce8d7c11bbdc9f545cf53d77d049a69e2449fa22d4f486b71bd0d8a78c8e5a7faa17b08f8e27043c72bde07f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e9b8e0470ca38634ec2755393de434ce
SHA159ef8be9110fee0f245ea5224e50be71901e90e4
SHA256d7ecfa9eb5741114e620446a99a5432adef765e5abc6229b4e6a5a998976f1c7
SHA512ff72db3f0e3a190c45cf2c3b4f6bd6835f7ed60564ec2107ca912478516cafe3652ac27da8a866f9b1ec88973bad286ee5e6ba7f6a05c3a18a2be84fcf7024e5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD526ebd64b127e7e185e0fdf521dd3b67d
SHA169993218d2371adfafd364603cfcb7a3ea820061
SHA2569f57dbd2f14996cf2a04e02f63c5f749be3a72ed65ae549882eb8cf9de132c9b
SHA512979bc324c958c2983eb38223e9d9cd05194657457a23ae23beaf32586350494b93b6a538221089a72f30bccd7e3922889733c0f51adfacdcee04a81e24555583
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50f93dd0c75cb0a55ce3067a8d5ee8178
SHA18b2c7d7f170fa16a8640c139172e2c799ddf621d
SHA2562acbc74973ed63b9c738a7acfc8c4f1eac4524eea50bd9a8c20ccfa5c9fdab03
SHA5123d0f66a7de31a6395cd08c6c2b28112ddd2ab3b9c1dc923b46eb708f5b8305449be00eaa59e15bec969a13b02ebc6eaaff4653477232c726ef4fb033dd4c9a3e
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Filesize
4.1MB
MD51250c2afc46194b4d63ca011316d2f28
SHA12b1d8c1b13faca320cfeb1e3d3040407ff36f9d8
SHA256bf012a5a3808044d4c7a5f251cceefd2b70dd0a30787e5cdeb5699e78e0aeac3
SHA512b4e394bb8dc1a336701a5c0aa14166f3ea2b6c7e9860e7d3d80d253eb2c5b4ed50b95518b609fe43d068f09d2f4dcebcf4c026e2a071a3ff3e1b62ee69eb14de
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec