Analysis
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max time kernel
149s -
max time network
153s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
18-05-2024 21:51
Static task
static1
Behavioral task
behavioral1
Sample
861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe
Resource
win10v2004-20240508-en
General
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Target
861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe
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Size
4.1MB
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MD5
8da07f14de15e768d0c031f66b2740e9
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SHA1
780cfbf219ababcc1c576fd45125720e47a3ef6a
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SHA256
861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4
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SHA512
9ffe9c9c81a46e3629cc7345dd94b3a6392c2eae40a2c01b5a23d51f2b46d73edb930ef5c6f717aadab4a160424525e5c6f16b50e47c63b8dce3bc7c27dcf4be
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SSDEEP
98304:ZsVQ+hudF4keJeyEqK0evsENr9r54Wa5Cc1nHXivv:Zs5hioeyE6OsERj43n4
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1884-2-0x0000000004940000-0x000000000522B000-memory.dmp family_glupteba behavioral2/memory/1884-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1884-72-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/1884-78-0x0000000004940000-0x000000000522B000-memory.dmp family_glupteba behavioral2/memory/1884-121-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3744-120-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3744-193-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4100-201-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4100-213-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4100-216-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4100-221-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4100-224-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4100-227-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4100-233-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4100-237-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4100-240-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4100-243-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4100-249-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4100-253-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4596 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4100 csrss.exe 4564 injector.exe 2820 windefender.exe 4168 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9f5-204.dat upx behavioral2/memory/4168-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2820-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2820-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4168-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4168-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\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.
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 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe File created C:\Windows\rss\csrss.exe 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.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 1064 sc.exe -
pid Process 564 powershell.exe 3068 powershell.exe 1972 powershell.exe 1944 powershell.exe 4884 powershell.exe 4668 powershell.exe 2080 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 2336 schtasks.exe 2288 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.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\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-449 = "Azerbaijan 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\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-261 = "GMT Daylight 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" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.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,-231 = "Hawaiian Daylight 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,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates 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\@tzres.dll,-672 = "AUS Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 564 powershell.exe 564 powershell.exe 1884 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 1884 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 3068 powershell.exe 3068 powershell.exe 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 1972 powershell.exe 1972 powershell.exe 1944 powershell.exe 1944 powershell.exe 4884 powershell.exe 4884 powershell.exe 4668 powershell.exe 4668 powershell.exe 2080 powershell.exe 2080 powershell.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4100 csrss.exe 4100 csrss.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4100 csrss.exe 4100 csrss.exe 4564 injector.exe 4564 injector.exe 4100 csrss.exe 4100 csrss.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe 4564 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 564 powershell.exe Token: SeDebugPrivilege 1884 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Token: SeImpersonatePrivilege 1884 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe Token: SeDebugPrivilege 3068 powershell.exe Token: SeDebugPrivilege 1972 powershell.exe Token: SeDebugPrivilege 1944 powershell.exe Token: SeDebugPrivilege 4884 powershell.exe Token: SeDebugPrivilege 4668 powershell.exe Token: SeDebugPrivilege 2080 powershell.exe Token: SeSystemEnvironmentPrivilege 4100 csrss.exe Token: SeSecurityPrivilege 1064 sc.exe Token: SeSecurityPrivilege 1064 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1884 wrote to memory of 564 1884 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 81 PID 1884 wrote to memory of 564 1884 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 81 PID 1884 wrote to memory of 564 1884 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 81 PID 3744 wrote to memory of 3068 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 87 PID 3744 wrote to memory of 3068 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 87 PID 3744 wrote to memory of 3068 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 87 PID 3744 wrote to memory of 2820 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 89 PID 3744 wrote to memory of 2820 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 89 PID 2820 wrote to memory of 4596 2820 cmd.exe 91 PID 2820 wrote to memory of 4596 2820 cmd.exe 91 PID 3744 wrote to memory of 1972 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 92 PID 3744 wrote to memory of 1972 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 92 PID 3744 wrote to memory of 1972 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 92 PID 3744 wrote to memory of 1944 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 94 PID 3744 wrote to memory of 1944 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 94 PID 3744 wrote to memory of 1944 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 94 PID 3744 wrote to memory of 4100 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 96 PID 3744 wrote to memory of 4100 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 96 PID 3744 wrote to memory of 4100 3744 861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe 96 PID 4100 wrote to memory of 4884 4100 csrss.exe 97 PID 4100 wrote to memory of 4884 4100 csrss.exe 97 PID 4100 wrote to memory of 4884 4100 csrss.exe 97 PID 4100 wrote to memory of 4668 4100 csrss.exe 103 PID 4100 wrote to memory of 4668 4100 csrss.exe 103 PID 4100 wrote to memory of 4668 4100 csrss.exe 103 PID 4100 wrote to memory of 2080 4100 csrss.exe 105 PID 4100 wrote to memory of 2080 4100 csrss.exe 105 PID 4100 wrote to memory of 2080 4100 csrss.exe 105 PID 4100 wrote to memory of 4564 4100 csrss.exe 107 PID 4100 wrote to memory of 4564 4100 csrss.exe 107 PID 2820 wrote to memory of 1048 2820 windefender.exe 113 PID 2820 wrote to memory of 1048 2820 windefender.exe 113 PID 2820 wrote to memory of 1048 2820 windefender.exe 113 PID 1048 wrote to memory of 1064 1048 cmd.exe 114 PID 1048 wrote to memory of 1064 1048 cmd.exe 114 PID 1048 wrote to memory of 1064 1048 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\861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe"C:\Users\Admin\AppData\Local\Temp\861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1884 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:564
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C:\Users\Admin\AppData\Local\Temp\861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.exe"C:\Users\Admin\AppData\Local\Temp\861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4.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:3744 -
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:3068
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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:2820 -
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:4596
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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:1972
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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:1944
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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:4100 -
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:4884
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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:2336
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1896
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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:4668
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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:2080
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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:4564
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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:2288
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2820 -
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:1048 -
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:1064
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4168
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
MD5cb2a8612919cd7fed3d53aaa3b24188f
SHA1adffa399a8bdb27ebf05ad5af0b57c64dfac8f14
SHA2565017393157d104dae5c5770869c0c0ebc69cef89f4d24f92bc8f66a44270596a
SHA51238765c8062d5dca743ac8d8919f22b1856663501ab4b544bbf95043041340ad9cd3ad076bce203aa9e2b0ff37371791c323a1c159d75aaef780f918db3f94469
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54af42beaea6d23b8fb7f159171db8426
SHA1c5f622d4cfeac43dc317f892d7d4eaa5e579c40a
SHA256b4e5f6c2b9aeba782c7eed5075d23b0fec3e8e75f858765a4ba93193037e80a6
SHA512302478ab94d88a8110c5c6e423d1a76fb2a09546f63d3e4c7746df35e7e9d8c50d9effc632576985c3ec340d6d2ca7dda2278fb97806ec5b302679e2370aef09
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53422a53708d43375393ab3c09d77b268
SHA1a9a2ec4e634c2371509bff4379192bb393ec5f39
SHA256e36ba7c1ae21d96f2f378bcba3431b5c2434dd4310edaaecacab981008d49ee4
SHA5120c01b0288800ad0f70148dfbbcdb1aa1a44967e6fc94d16899d5aa8d556da5bd373234c862fc757049460a0a46722021fb2e20f0fa5e202afc5e96ee14259391
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD552357d995e72134122c71c122c635ca0
SHA194e35d6a779d9b07678f193dcf6b8f7070b81c07
SHA256021e8a2016ecd4b6b99547101b2165cb8ea7d55212db4635f2e2abcc3eda11c0
SHA512f1c8365f72fcec1fda02c39d41ff2aea09292270065a68654c7d5d6c4a733c45b17a6c2f779524ee0a0647cc8fc00f2eb2d7c9b6b02cea5273561b187006c9be
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51d95cb76c00c576a0148f081f0c29026
SHA18506f686c09f435288067da64bcb96db96841eb7
SHA256f191944ad0834fd68db0b9f8a5d30239ca87c17accb255e16461558c27406061
SHA5128a07edecb92f99f9ed6bf95f97131747c3290cc628794b10cbdd8eba50abfd1f963c477920ea8b2ddfd28c18f1fbdbf68de6d4396533379c6099dccb3d4f5bbc
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Filesize
4.1MB
MD58da07f14de15e768d0c031f66b2740e9
SHA1780cfbf219ababcc1c576fd45125720e47a3ef6a
SHA256861a5b29ccfe710a41bafdf963769d21a3d819ad8d313d575767939a16e51aa4
SHA5129ffe9c9c81a46e3629cc7345dd94b3a6392c2eae40a2c01b5a23d51f2b46d73edb930ef5c6f717aadab4a160424525e5c6f16b50e47c63b8dce3bc7c27dcf4be
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec