Analysis
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max time kernel
150s -
max time network
158s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
15/05/2024, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe
Resource
win10v2004-20240426-en
General
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Target
79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe
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Size
4.1MB
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MD5
abd59d1c428fd2c9b1d1628705e2e652
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SHA1
9f422b95cc815e117cf2b9167eb6192c3b09af5f
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SHA256
79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1
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SHA512
a9a952a96bb0f35af5c067befc6e76a6d65b4be054633e1476d0306ba7b2b8c406c080ecee3b110fff29c9aa488e0306eff001225e8f74bfd90f2d4beb60cda6
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SSDEEP
98304:0CrMvuyR1RyPQdAJHItu4QbOo8ZPCtSlOjuAz5n6hmlDmb3:05vuu/yDHItfIOpPCSgB5tCD
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/4556-2-0x0000000004CF0000-0x00000000055DB000-memory.dmp family_glupteba behavioral2/memory/4556-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4556-24-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4556-54-0x0000000004CF0000-0x00000000055DB000-memory.dmp family_glupteba behavioral2/memory/4556-52-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4556-76-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3380-66-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3380-127-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2508-197-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2508-205-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2508-216-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2508-219-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2508-222-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2508-225-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2508-228-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2508-231-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2508-234-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/2508-237-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2076 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2508 csrss.exe 1884 injector.exe 4624 windefender.exe 2424 windefender.exe -
resource yara_rule behavioral2/files/0x000400000002a9c3-208.dat upx behavioral2/memory/4624-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2424-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4624-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2424-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2424-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\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 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 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe File created C:\Windows\rss\csrss.exe 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.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 1944 sc.exe -
pid Process 4944 powershell.exe 4076 powershell.exe 3696 powershell.exe 1952 powershell.exe 4656 powershell.exe 2956 powershell.exe 2244 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 2432 schtasks.exe 4892 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-572 = "China Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.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\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-272 = "Greenwich Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs 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,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.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\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.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 powershell.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,-72 = "Newfoundland Standard Time" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.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\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.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,-462 = "Afghanistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight 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" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.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\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-191 = "Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.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,-661 = "Cen. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3696 powershell.exe 3696 powershell.exe 4556 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 4556 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 1952 powershell.exe 1952 powershell.exe 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 4656 powershell.exe 4656 powershell.exe 2956 powershell.exe 2956 powershell.exe 2244 powershell.exe 2244 powershell.exe 4944 powershell.exe 4944 powershell.exe 4076 powershell.exe 4076 powershell.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 2508 csrss.exe 2508 csrss.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 2508 csrss.exe 2508 csrss.exe 1884 injector.exe 1884 injector.exe 2508 csrss.exe 2508 csrss.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe 1884 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3696 powershell.exe Token: SeDebugPrivilege 4556 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe Token: SeImpersonatePrivilege 4556 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe Token: SeDebugPrivilege 1952 powershell.exe Token: SeDebugPrivilege 4656 powershell.exe Token: SeDebugPrivilege 2956 powershell.exe Token: SeDebugPrivilege 2244 powershell.exe Token: SeDebugPrivilege 4944 powershell.exe Token: SeDebugPrivilege 4076 powershell.exe Token: SeSystemEnvironmentPrivilege 2508 csrss.exe Token: SeSecurityPrivilege 1944 sc.exe Token: SeSecurityPrivilege 1944 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4556 wrote to memory of 3696 4556 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 82 PID 4556 wrote to memory of 3696 4556 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 82 PID 4556 wrote to memory of 3696 4556 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 82 PID 3380 wrote to memory of 1952 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 87 PID 3380 wrote to memory of 1952 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 87 PID 3380 wrote to memory of 1952 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 87 PID 3380 wrote to memory of 3212 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 89 PID 3380 wrote to memory of 3212 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 89 PID 3212 wrote to memory of 2076 3212 cmd.exe 91 PID 3212 wrote to memory of 2076 3212 cmd.exe 91 PID 3380 wrote to memory of 4656 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 92 PID 3380 wrote to memory of 4656 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 92 PID 3380 wrote to memory of 4656 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 92 PID 3380 wrote to memory of 2956 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 94 PID 3380 wrote to memory of 2956 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 94 PID 3380 wrote to memory of 2956 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 94 PID 3380 wrote to memory of 2508 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 97 PID 3380 wrote to memory of 2508 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 97 PID 3380 wrote to memory of 2508 3380 79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe 97 PID 2508 wrote to memory of 2244 2508 csrss.exe 103 PID 2508 wrote to memory of 2244 2508 csrss.exe 103 PID 2508 wrote to memory of 2244 2508 csrss.exe 103 PID 2508 wrote to memory of 4944 2508 csrss.exe 109 PID 2508 wrote to memory of 4944 2508 csrss.exe 109 PID 2508 wrote to memory of 4944 2508 csrss.exe 109 PID 2508 wrote to memory of 4076 2508 csrss.exe 111 PID 2508 wrote to memory of 4076 2508 csrss.exe 111 PID 2508 wrote to memory of 4076 2508 csrss.exe 111 PID 2508 wrote to memory of 1884 2508 csrss.exe 113 PID 2508 wrote to memory of 1884 2508 csrss.exe 113 PID 4624 wrote to memory of 1652 4624 windefender.exe 119 PID 4624 wrote to memory of 1652 4624 windefender.exe 119 PID 4624 wrote to memory of 1652 4624 windefender.exe 119 PID 1652 wrote to memory of 1944 1652 cmd.exe 120 PID 1652 wrote to memory of 1944 1652 cmd.exe 120 PID 1652 wrote to memory of 1944 1652 cmd.exe 120 -
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\79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe"C:\Users\Admin\AppData\Local\Temp\79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4556 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3696
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C:\Users\Admin\AppData\Local\Temp\79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.exe"C:\Users\Admin\AppData\Local\Temp\79d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1.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:3380 -
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:1952
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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:3212 -
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:2076
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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:4656
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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:2956
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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:2508 -
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:2244
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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:2432
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4476
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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:4944
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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:4076
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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:1884
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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:4892
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4624 -
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:1652 -
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:1944
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2424
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
MD54d1bf97932702566ca76999524965655
SHA1c00a9cb55b36a19a97acef94a27375aeff754f9e
SHA256c868df29c4342ed95be7eb34bd40ee0a4716851e80a136a8c554acb76d47fcbf
SHA512810aadfa2d24bc547c172bd20d44fa67ae806b70336a93926711c905417663ae97cd50b266e2bd1ac5f156d995156627ed9c55cf05d972d32ff615454404bba7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5381cd7bfc0b4884d56a044cfacdd4e0e
SHA1d1beddc00f7e21c7e6008d5eb8de927131fc1b18
SHA25623c47d82335081e3f6315c929fb9011138415244bbed0b13ee7238038029c233
SHA512610410e6bcade3efb9e4411431928f0e1ebcff5428be20852258230fbdec4cbaa9685577ae08208a4633533cfa15ab8bf2c4fef2448d86cf411606fa4371f95a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f0ca1cff522af3aaa8d3c0979bd664b8
SHA1bfed1cf7d8584d59746f6b26691077743e5731ca
SHA256e91e6b31e7d3b9ef184c5ddf7767e1257c92255f38e8aa5b4e119fd58be20214
SHA5125a67a72c0d65369ea0de8872fe9f68c64d2aae1ba07903e0e615598370290e45e33b90dbf3895063869ba280c7160848c099e8ca56c926ffb5abb88d5fed5fb6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55d5a34d55242fe9f6b0eeb9284cac63d
SHA143987c26f16b5ec1f49fe01ff9584e4730b99f7b
SHA256782ee8b0ae4385a1d8531cd02d33b56cf51f217e4194fb9f69011ee50c4bb0ca
SHA512e3b42e3fa8c3f415464247946ba46065a5b1c3fb749e46454c13210a815954e0f2d26e6a219387b6821d34ed819293dddf73f19977ecdd6389493cb1c0a90597
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52154cdc288001c472298156de6e35bc3
SHA123ddebedf106255a455aec2dd3294c931a33ef8e
SHA256e3e72f3c7f9840206c550fe8cbae711d8b1aed31af4cdaa41c3dc3b5e34800e4
SHA512dbe0077ecb8a2aba3674320ff69d91011bd09e81fedbd166974cee3b88c9b8741f44c270763ea76fb8a3439d1362f162ea819ac397e69faca9a7f3fb7ff2d769
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Filesize
4.1MB
MD5abd59d1c428fd2c9b1d1628705e2e652
SHA19f422b95cc815e117cf2b9167eb6192c3b09af5f
SHA25679d1a7d83f7ddaf3abc53cead355293a5e677f6a9e2b7f12f8c3bfb393b0a1d1
SHA512a9a952a96bb0f35af5c067befc6e76a6d65b4be054633e1476d0306ba7b2b8c406c080ecee3b110fff29c9aa488e0306eff001225e8f74bfd90f2d4beb60cda6
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec