Analysis
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max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-05-2024 23:10
Static task
static1
Behavioral task
behavioral1
Sample
b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe
Resource
win10v2004-20240508-en
General
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Target
b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe
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Size
4.1MB
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MD5
7e06ff6ca118afee8888c6a4cd362f07
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SHA1
29ed89d2ce7a61d911b81e1b40e649c2997b149f
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SHA256
b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22
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SHA512
d8843f11472950890abe0f5481168d11a0b6f10a90baeadae67f2c78b5e2e83081b5d63c14ddf929d06e5bec606f2bca5975444010819512bdee857c63074ad8
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SSDEEP
98304:0mJz+EAFuKpzA6GjnwtAd4VH0G8BBOAZM6KCBe84pH:hh+Eouw86GbIivMwMVCB8pH
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1912-2-0x0000000004CA0000-0x000000000558B000-memory.dmp family_glupteba behavioral2/memory/1912-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1912-75-0x0000000004CA0000-0x000000000558B000-memory.dmp family_glupteba behavioral2/memory/1912-74-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/1912-120-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1244-146-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2420-201-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2420-213-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2420-217-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2420-219-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2420-223-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2420-229-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2420-233-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2420-235-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2420-239-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2420-245-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2420-249-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2420-251-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/2420-255-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4592 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2420 csrss.exe 3012 injector.exe 3580 windefender.exe 4796 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9fa-205.dat upx behavioral2/memory/3580-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4796-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3580-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4796-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4796-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\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 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 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 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe File created C:\Windows\rss\csrss.exe b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.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 5016 sc.exe -
pid Process 4244 powershell.exe 4632 powershell.exe 3580 powershell.exe 640 powershell.exe 4720 powershell.exe 4084 powershell.exe 2268 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 1852 schtasks.exe 1620 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed 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,-105 = "Central Brazilian 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\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.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,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.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,-1891 = "Russia TZ 3 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs 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,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight 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" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.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,-162 = "Central 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,-192 = "Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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,-2591 = "Tocantins Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-501 = "Nepal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA 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,-732 = "Fiji Standard Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.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\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.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\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-732 = "Fiji Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3580 powershell.exe 3580 powershell.exe 1912 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1912 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 640 powershell.exe 640 powershell.exe 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 4720 powershell.exe 4720 powershell.exe 4084 powershell.exe 4084 powershell.exe 2268 powershell.exe 2268 powershell.exe 4244 powershell.exe 4244 powershell.exe 4632 powershell.exe 4632 powershell.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 2420 csrss.exe 2420 csrss.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 2420 csrss.exe 2420 csrss.exe 3012 injector.exe 3012 injector.exe 2420 csrss.exe 2420 csrss.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe 3012 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3580 powershell.exe Token: SeDebugPrivilege 1912 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Token: SeImpersonatePrivilege 1912 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe Token: SeDebugPrivilege 640 powershell.exe Token: SeDebugPrivilege 4720 powershell.exe Token: SeDebugPrivilege 4084 powershell.exe Token: SeDebugPrivilege 2268 powershell.exe Token: SeDebugPrivilege 4244 powershell.exe Token: SeDebugPrivilege 4632 powershell.exe Token: SeSystemEnvironmentPrivilege 2420 csrss.exe Token: SeSecurityPrivilege 5016 sc.exe Token: SeSecurityPrivilege 5016 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1912 wrote to memory of 3580 1912 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 78 PID 1912 wrote to memory of 3580 1912 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 78 PID 1912 wrote to memory of 3580 1912 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 78 PID 1244 wrote to memory of 640 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 83 PID 1244 wrote to memory of 640 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 83 PID 1244 wrote to memory of 640 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 83 PID 1244 wrote to memory of 2456 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 85 PID 1244 wrote to memory of 2456 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 85 PID 2456 wrote to memory of 4592 2456 cmd.exe 87 PID 2456 wrote to memory of 4592 2456 cmd.exe 87 PID 1244 wrote to memory of 4720 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 88 PID 1244 wrote to memory of 4720 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 88 PID 1244 wrote to memory of 4720 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 88 PID 1244 wrote to memory of 4084 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 90 PID 1244 wrote to memory of 4084 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 90 PID 1244 wrote to memory of 4084 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 90 PID 1244 wrote to memory of 2420 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 92 PID 1244 wrote to memory of 2420 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 92 PID 1244 wrote to memory of 2420 1244 b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe 92 PID 2420 wrote to memory of 2268 2420 csrss.exe 93 PID 2420 wrote to memory of 2268 2420 csrss.exe 93 PID 2420 wrote to memory of 2268 2420 csrss.exe 93 PID 2420 wrote to memory of 4244 2420 csrss.exe 99 PID 2420 wrote to memory of 4244 2420 csrss.exe 99 PID 2420 wrote to memory of 4244 2420 csrss.exe 99 PID 2420 wrote to memory of 4632 2420 csrss.exe 101 PID 2420 wrote to memory of 4632 2420 csrss.exe 101 PID 2420 wrote to memory of 4632 2420 csrss.exe 101 PID 2420 wrote to memory of 3012 2420 csrss.exe 103 PID 2420 wrote to memory of 3012 2420 csrss.exe 103 PID 3580 wrote to memory of 4276 3580 windefender.exe 109 PID 3580 wrote to memory of 4276 3580 windefender.exe 109 PID 3580 wrote to memory of 4276 3580 windefender.exe 109 PID 4276 wrote to memory of 5016 4276 cmd.exe 110 PID 4276 wrote to memory of 5016 4276 cmd.exe 110 PID 4276 wrote to memory of 5016 4276 cmd.exe 110 -
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\b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe"C:\Users\Admin\AppData\Local\Temp\b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1912 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3580
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C:\Users\Admin\AppData\Local\Temp\b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.exe"C:\Users\Admin\AppData\Local\Temp\b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22.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:1244 -
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:640
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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:2456 -
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:4592
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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:4720
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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:4084
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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:2420 -
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:2268
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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:1852
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2776
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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:4244
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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:4632
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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:3012
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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:1620
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3580 -
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:4276 -
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:5016
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4796
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59b3110924847d0b5e5bfccbfe544c79b
SHA1a775560e44b9e40b3ca8842ae6005582a1be7da5
SHA256374ae9f6c70a4c099b2470f9e98aec33b0ec33e3a87d3a392e093ce39389a13a
SHA5127f732df6ecbfc14c8a480e45261a7c1a61f46618a4e35deb0f9e520483385eb9ee0e39a8837f015c584237715fac5dcee18316be5897f620ee1ba6b61389ded1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c296cc25a7c8323934228e9cbf619f5a
SHA1d361e48273762ab588d6099c612f4cf4dec2bc97
SHA2564c75951bfa807e82f9a69138285b157a1562e8e463680eeabdc134a8dd03c19c
SHA5120426e949be073f97c0768baa91e22a41e37eba7c194181cbc7b939eca8fbbbb1e789682ac2e997dc854fdab86b990f107d39ba7866f2d0dbacebe1dbdda5e73f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53b254b2d397edc3b411e79cb83ef7c0d
SHA12e998f529355c5af62b69630b79dc7ad76c7e476
SHA256bfc54d50f7b87a2e599c02069b5fa234f97639a50f2315cf71cef5abab2e296a
SHA5126edb5ce40d316d4c9ab01bec2bd8e6274d910f711e711c62da4e2659492a812cfea8eb4cb811fc3d75d65f8260e3473a9cabb6cce2946ce672874b43fe3f195a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5afc78496f0c38f5df23dc9b1de38d8b4
SHA102a162a6a7a5e9e617d141920ebe78ac7ca35c81
SHA25640fbb53296f70146784da117ed726ebafc5faf6fff97ca8c3540efed5cba55b8
SHA512204daef4a0380e0fe4cfda477dc19ce6cbb8161cea10046b5aec07379783fa7964fe888da6f2dad6eb83f5d6b0c4028a496dcbf09b7f6274f8fc5275c2691611
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e4ff11f396c6294598bc86145b199181
SHA12a2976a776d1586b3b6859d6f60396ec72b87e9a
SHA256186c7a309907c4260fe807c86d3ae6b10ef6ccc80594f447b585c0e5949e7c31
SHA51242c1359171a8ace81b2d42a92c3e93cba9f2e069e8c750af49f642f7fc7b31772986fb6984266172d6d8fe6ec6d395896468a489ccf3852e6c78dffab024dcdb
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Filesize
4.1MB
MD57e06ff6ca118afee8888c6a4cd362f07
SHA129ed89d2ce7a61d911b81e1b40e649c2997b149f
SHA256b4596a40c70c96e4b426a43bc0260dd29fc62716023c8d82c74beebc3c6b3c22
SHA512d8843f11472950890abe0f5481168d11a0b6f10a90baeadae67f2c78b5e2e83081b5d63c14ddf929d06e5bec606f2bca5975444010819512bdee857c63074ad8
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec