Analysis
- max time kernel
150s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20240419-en - resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system - submitted
16/05/2024, 12:27
Static task
static1
Behavioral task
behavioral1
Sample
4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe
Resource
win10v2004-20240426-en
General
- Target 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe
- Size 4.1MB
- Sample240516-pmxzfada44
- SHA256 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059
- MD5 6374c18960173668ad74b04118d131bf
- SHA1 1bb62bece88a95625c8360c2ec76ffc64f87f2a1
- SHA512 a75de4c197839e5a1b1ae97da53d28d9e3833e5f6f69a153c192d61d2db53d008dca633433f0217a379633b5c4a5fdb46a08ad17b0fff818e3e09d741565e95a
- SSDEEP 98304:N/lx2VB4FLDQS1OmkYbRsTncIxTvyO2P5x7YbDUU8i:dlgkYS1OmbburVLyO2P5x7Yb4I
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/4820-2-0x0000000002E30000-0x000000000371B000-memory.dmp family_glupteba behavioral2/memory/4820-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4820-74-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4820-76-0x0000000002E30000-0x000000000371B000-memory.dmp family_glupteba behavioral2/memory/1620-100-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1620-126-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-182-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-193-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-195-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-198-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-201-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-204-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-207-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-210-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-213-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-216-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-219-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-222-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba - Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3112 netsh.exe - Executes dropped EXE 4 IoCs
pid Process 2448 csrss.exe 1744 injector.exe 4860 windefender.exe 4728 windefender.exe -
resource yara_rule behavioral2/files/0x001a00000002ab58-186.dat upx behavioral2/memory/4860-187-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4728-190-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4860-192-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4728-196-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4728-202-0x0000000000400000-0x00000000008DF000-memory.dmp upx - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\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.
- 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 6 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 - 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 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe - Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe File created C:\Windows\rss\csrss.exe 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.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 996 sc.exe -
pid Process 4392 powershell.exe 1888 powershell.exe 3288 powershell.exe 3152 powershell.exe 3392 powershell.exe 4912 powershell.exe 1868 powershell.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 2000 schtasks.exe 2636 schtasks.exe - Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.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\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-632 = "Tokyo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\2a\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time" windefender.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,-652 = "AUS Central Standard Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs 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\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-631 = "Tokyo Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.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,-441 = "Arabian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1662 = "Bahia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.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\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3288 powershell.exe 3288 powershell.exe 4820 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 4820 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 3152 powershell.exe 3152 powershell.exe 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 3392 powershell.exe 3392 powershell.exe 4912 powershell.exe 4912 powershell.exe 4392 powershell.exe 4392 powershell.exe 1888 powershell.exe 1888 powershell.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 2448 csrss.exe 2448 csrss.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 2448 csrss.exe 2448 csrss.exe 1744 injector.exe 1744 injector.exe 2448 csrss.exe 2448 csrss.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe 1744 injector.exe - Suspicious use of AdjustPrivilegeToken 11 IoCs
description pid Process Token: SeDebugPrivilege 3288 powershell.exe Token: SeDebugPrivilege 4820 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Token: SeImpersonatePrivilege 4820 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe Token: SeDebugPrivilege 3152 powershell.exe Token: SeDebugPrivilege 3392 powershell.exe Token: SeDebugPrivilege 4912 powershell.exe Token: SeDebugPrivilege 4392 powershell.exe Token: SeDebugPrivilege 1888 powershell.exe Token: SeSystemEnvironmentPrivilege 2448 csrss.exe Token: SeSecurityPrivilege 996 sc.exe Token: SeSecurityPrivilege 996 sc.exe - Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4820 wrote to memory of 3288 4820 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 82 PID 4820 wrote to memory of 3288 4820 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 82 PID 4820 wrote to memory of 3288 4820 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 82 PID 1620 wrote to memory of 3152 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 87 PID 1620 wrote to memory of 3152 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 87 PID 1620 wrote to memory of 3152 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 87 PID 1620 wrote to memory of 2952 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 89 PID 1620 wrote to memory of 2952 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 89 PID 2952 wrote to memory of 3112 2952 cmd.exe 91 PID 2952 wrote to memory of 3112 2952 cmd.exe 91 PID 1620 wrote to memory of 3392 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 92 PID 1620 wrote to memory of 3392 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 92 PID 1620 wrote to memory of 3392 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 92 PID 1620 wrote to memory of 4912 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 94 PID 1620 wrote to memory of 4912 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 94 PID 1620 wrote to memory of 4912 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 94 PID 1620 wrote to memory of 2448 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 96 PID 1620 wrote to memory of 2448 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 96 PID 1620 wrote to memory of 2448 1620 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe 96 PID 2448 wrote to memory of 1868 2448 csrss.exe 97 PID 2448 wrote to memory of 1868 2448 csrss.exe 97 PID 2448 wrote to memory of 1868 2448 csrss.exe 97 PID 2448 wrote to memory of 4392 2448 csrss.exe 102 PID 2448 wrote to memory of 4392 2448 csrss.exe 102 PID 2448 wrote to memory of 4392 2448 csrss.exe 102 PID 2448 wrote to memory of 1888 2448 csrss.exe 105 PID 2448 wrote to memory of 1888 2448 csrss.exe 105 PID 2448 wrote to memory of 1888 2448 csrss.exe 105 PID 2448 wrote to memory of 1744 2448 csrss.exe 107 PID 2448 wrote to memory of 1744 2448 csrss.exe 107 PID 4860 wrote to memory of 2340 4860 windefender.exe 113 PID 4860 wrote to memory of 2340 4860 windefender.exe 113 PID 4860 wrote to memory of 2340 4860 windefender.exe 113 PID 2340 wrote to memory of 996 2340 cmd.exe 114 PID 2340 wrote to memory of 996 2340 cmd.exe 114 PID 2340 wrote to memory of 996 2340 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\4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe"C:\Users\Admin\AppData\Local\Temp\4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4820 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3288
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C:\Users\Admin\AppData\Local\Temp\4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.exe"C:\Users\Admin\AppData\Local\Temp\4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059.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:1620 -
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:3152
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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:2952 -
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:3112
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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:3392
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4912
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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:2448 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
PID:1868
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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:2000
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4708
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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:4392
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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:1888
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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:1744
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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:2636
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4860 -
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:2340 -
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:996
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4728
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
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_31vcelo3.214.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
- Size 281KB
- SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
- MD5 d98e33b66343e7c96158444127a117f6
- SHA1 bb716c5509a2bf345c6c1152f6e3e1452d39d50d
- SHA512 705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
- SSDEEP 3072:qbHszDaOJ8u2HHFIWr6e29kOnK7qFQ8wMii5I7kGvNjzMuszHshoY46bEydJ+dK9:SA3IlIA6e29vngqS8wMmuooh8z+8F
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
- Size 2KB
- SHA256 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
- MD5 d0c46cad6c0778401e21910bd6b56b70
- SHA1 7be418951ea96326aca445b8dfe449b2bfa0dca6
- SHA512 057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
- MD5 SHA1 SHA512
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 3cc3075849acd3277eca1bdb5c071d84bd69d866839b239c458b800e31543969
- MD5 44464a546e9c20781dc2b8544dfa4c93
- SHA1 43a1dd3f09a30e23f8376ad0446ff36508103f43
- SHA512 cfc4c25c953fdef3bf5961ee87d429e5f219e81083359509743a160f10aebfb64ae77e63a20a3f1ef584da8739e657446f235adff367644dbe9e10ff4a900fd4
- SSDEEP 384:ETHhwS2shRfFRHEzE8NNjF13jaLNXq/76z7nY9jhUd4H:zSTbNRCtNjF13mLNY6zk9lU8
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 33670d67e4242debb47441ef6224d585f6bc27891b6d0275e608ba7b0106fd89
- MD5 3d43cf20a4cc2cc59dcd02102cc03907
- SHA1 d7354966440a892bad0fd6ebc6ddb2ee512c0b73
- SHA512 4bb0992939745f11a159968870ed1185726f88db0e5e15a94980e3956e6710e74d18c14bd2a2f30cbe32e46217eca0afbe5201951d7ef0f9dc91ba7521c437c0
- SSDEEP 384:VL3HhwSStummSLdFRHimEyEUoNSCa1ICmLFjU4bL08zenY9jhUdxH:NKSSHmyRrE8mSCa1ICmLhjbnzB9lU/
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 0ee4710db02e85ffd5549efc5fbed327c7d311752ff578ab604d98d50517aa84
- MD5 0a3465daa3b53b2ad582988005f4158f
- SHA1 ddd7ada6e4d8ba00ea57c8e2be39023c583e7abb
- SHA512 cee50d075e655da72c0dca24dae5b15d8f87a79dec69461e2eab13c66b831e4c138a0b50488a4064307de3cf0c6126497d758692104832a8592cc84dbbd028ca
- SSDEEP 384:cL3HhwSSx4u1/FRHEMEolczz0jWa1k24kD/4bPqzenY9jhUdxH:CKSSOu1tRPE9kjWa134NbyzB9lU/
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 3843241d5fb698c5f91847a9821c3df0e9e687ded3cd88835a164b4a3bcb0cff
- MD5 491959f165cfa41082d6beb250556f2e
- SHA1 e819677f643ecb398c975098bd2958799435b3e6
- SHA512 3fa17949eae7c84af4ce266b069834db80fe8ba6b76b302f1e9bd69215ae8fdffd77ac404831bdb09b648c0ad6d592bed9c6e08658484889fba4b5110c871692
- SSDEEP 384:0L3HhdSSJo5GdhJRzDnnNvjQGIns+NXjg2JZb3zHzkRjNjdF+:ajSSoadvNvjfIns+NzgaZb3zzkzdk
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\rss\csrss.exe
- Size 4.1MB
- SHA256 4b9ee2adec3bdb59f051da6bc8ec8232d4fa833f5ca96e41de94901f1cc2a059
- MD5 6374c18960173668ad74b04118d131bf
- SHA1 1bb62bece88a95625c8360c2ec76ffc64f87f2a1
- SHA512 a75de4c197839e5a1b1ae97da53d28d9e3833e5f6f69a153c192d61d2db53d008dca633433f0217a379633b5c4a5fdb46a08ad17b0fff818e3e09d741565e95a
- SSDEEP 98304:N/lx2VB4FLDQS1OmkYbRsTncIxTvyO2P5x7YbDUU8i:dlgkYS1OmbburVLyO2P5x7Yb4I
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\windefender.exe
- Size 2.0MB
- SHA256 166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
- MD5 8e67f58837092385dcf01e8a2b4f5783
- SHA1 012c49cfd8c5d06795a6f67ea2baf2a082cf8625
- SHA512 40d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec
- SSDEEP 49152:y+SUiJeHpNnxG745Mfi39uXrbcI6DOdVgeuaNjwAx1bJljkv6kXjxNh:fdlHA4yiN8cI6SX3hbJCvhx
- MD5 SHA1 SHA512 SSDEEP