Analysis
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max time kernel
149s -
max time network
154s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
18-05-2024 21:13
Static task
static1
Behavioral task
behavioral1
Sample
1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe
Resource
win10v2004-20240426-en
General
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Target
1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe
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Size
4.1MB
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MD5
9dfcbb0ca063d36fb05121c53c838c0d
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SHA1
abf8b0b6b3c4074c3da25f8f5d88a08f0822d138
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SHA256
1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e
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SHA512
14d06238dcd04eee54af3e49a75662c5aba0515e0a280aeb926b71fa946ec7765cb29315c0671ec04851a85ce1073b80c0159fe0a0b3c9698fd02d3766f21762
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SSDEEP
98304:zmSOHuT7egJLhRTCVEkOCdqjiWtSbuAFmh92J:z0ObLh9WfG/tSdeC
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/3692-2-0x0000000004960000-0x000000000524B000-memory.dmp family_glupteba behavioral2/memory/3692-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3692-76-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/3692-107-0x0000000004960000-0x000000000524B000-memory.dmp family_glupteba behavioral2/memory/3692-126-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1196-124-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/5104-201-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/5104-212-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/5104-217-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/5104-220-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/5104-224-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/5104-228-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/5104-233-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/5104-236-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/5104-240-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/5104-244-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/5104-249-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/5104-253-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/5104-256-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3544 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 5104 csrss.exe 2944 injector.exe 3264 windefender.exe 2888 windefender.exe -
resource yara_rule behavioral2/files/0x001a00000002ab41-204.dat upx behavioral2/memory/3264-205-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2888-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3264-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2888-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2888-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe File created C:\Windows\rss\csrss.exe 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.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 2192 sc.exe -
pid Process 4652 powershell.exe 2300 powershell.exe 4964 powershell.exe 4156 powershell.exe 3780 powershell.exe 560 powershell.exe 4524 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 1740 schtasks.exe 2748 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.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" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-302 = "Romance Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\@tzres.dll,-292 = "Central European Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.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,-2142 = "Transbaikal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs 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,-385 = "Namibia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.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,-401 = "Arabic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates 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,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.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,-351 = "FLE Daylight Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.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" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.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,-104 = "Central Brazilian Daylight Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-132 = "US Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-932 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\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,-461 = "Afghanistan Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4156 powershell.exe 4156 powershell.exe 3692 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 3692 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 3780 powershell.exe 3780 powershell.exe 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 560 powershell.exe 560 powershell.exe 4524 powershell.exe 4524 powershell.exe 4652 powershell.exe 4652 powershell.exe 2300 powershell.exe 2300 powershell.exe 4964 powershell.exe 4964 powershell.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 5104 csrss.exe 5104 csrss.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 5104 csrss.exe 5104 csrss.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 5104 csrss.exe 5104 csrss.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe 2944 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4156 powershell.exe Token: SeDebugPrivilege 3692 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Token: SeImpersonatePrivilege 3692 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe Token: SeDebugPrivilege 3780 powershell.exe Token: SeDebugPrivilege 560 powershell.exe Token: SeDebugPrivilege 4524 powershell.exe Token: SeDebugPrivilege 4652 powershell.exe Token: SeDebugPrivilege 2300 powershell.exe Token: SeDebugPrivilege 4964 powershell.exe Token: SeSystemEnvironmentPrivilege 5104 csrss.exe Token: SeSecurityPrivilege 2192 sc.exe Token: SeSecurityPrivilege 2192 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3692 wrote to memory of 4156 3692 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 81 PID 3692 wrote to memory of 4156 3692 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 81 PID 3692 wrote to memory of 4156 3692 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 81 PID 1196 wrote to memory of 3780 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 86 PID 1196 wrote to memory of 3780 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 86 PID 1196 wrote to memory of 3780 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 86 PID 1196 wrote to memory of 412 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 88 PID 1196 wrote to memory of 412 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 88 PID 412 wrote to memory of 3544 412 cmd.exe 90 PID 412 wrote to memory of 3544 412 cmd.exe 90 PID 1196 wrote to memory of 560 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 91 PID 1196 wrote to memory of 560 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 91 PID 1196 wrote to memory of 560 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 91 PID 1196 wrote to memory of 4524 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 93 PID 1196 wrote to memory of 4524 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 93 PID 1196 wrote to memory of 4524 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 93 PID 1196 wrote to memory of 5104 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 95 PID 1196 wrote to memory of 5104 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 95 PID 1196 wrote to memory of 5104 1196 1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe 95 PID 5104 wrote to memory of 4652 5104 csrss.exe 96 PID 5104 wrote to memory of 4652 5104 csrss.exe 96 PID 5104 wrote to memory of 4652 5104 csrss.exe 96 PID 5104 wrote to memory of 2300 5104 csrss.exe 101 PID 5104 wrote to memory of 2300 5104 csrss.exe 101 PID 5104 wrote to memory of 2300 5104 csrss.exe 101 PID 5104 wrote to memory of 4964 5104 csrss.exe 104 PID 5104 wrote to memory of 4964 5104 csrss.exe 104 PID 5104 wrote to memory of 4964 5104 csrss.exe 104 PID 5104 wrote to memory of 2944 5104 csrss.exe 106 PID 5104 wrote to memory of 2944 5104 csrss.exe 106 PID 3264 wrote to memory of 4836 3264 windefender.exe 112 PID 3264 wrote to memory of 4836 3264 windefender.exe 112 PID 3264 wrote to memory of 4836 3264 windefender.exe 112 PID 4836 wrote to memory of 2192 4836 cmd.exe 113 PID 4836 wrote to memory of 2192 4836 cmd.exe 113 PID 4836 wrote to memory of 2192 4836 cmd.exe 113 -
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\1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe"C:\Users\Admin\AppData\Local\Temp\1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3692 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4156
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C:\Users\Admin\AppData\Local\Temp\1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.exe"C:\Users\Admin\AppData\Local\Temp\1b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e.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:1196 -
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:3780
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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:412 -
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:3544
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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:560
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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:4524
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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:5104 -
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:4652
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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:1740
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4852
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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:2300
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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:4964
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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:2944
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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:2748
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3264 -
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:4836 -
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:2192
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2888
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
MD5edc4fa9f54dcc39ed428cd72592310e0
SHA1c711be55c09fea4a763117cf1095b970e7ac0e44
SHA2565a97db6e8c175734525552ee7dd369c97e975a649507b2440302798faf8063cf
SHA51211f68409d880432bd0af25c4e4c20493b97822e29f48fcfee5a7247db3b8a5bd0f3dca283cf4a5087dc586aae079739cec45cc67c1b97b27cf48a5d395cb2115
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c119b09c0195f454ca22b4b406c25096
SHA19a2f24c5a0ad6a85cdff9563c81f44a66b835e5b
SHA2568f3030727f332d6f080566888d613c0e7602319961553fd595195f1a847838be
SHA512a111aa31bb5a585442580fddd95191d1b31d4bf556d04c3f6c89157bd19ce7fbc517b8cad914186c5510c984211c41d37922d5a2087aa0cf2a5aa0daa807e2dd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD588103fc00af095e55e2cea1c10407f5c
SHA1fcfdc05f93e167e023f60d8f813b2eb8aff6f1da
SHA256393fbe8ce54663a8ba51fe971559fd897f5825c55dd9065389e1150fb61eeacd
SHA512af6d73b7d1004edb2995d05964fa970f91b0fc10b1e31bc9ca4576e8c20f514698e7120a7834c4344434a11ea9b0d26963da6a06b0ee4283f56c8b94e8ebd22d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fac1f241bfffc0c92fa853f994590725
SHA105ca4194f4788a509949556137cfb75ae7ad71dd
SHA256d449bbfd2942a21e2202191b4e5be13a9b8a4f689ff3e269bdcdd6f3627a6b01
SHA5120ffc0359bd668112bb671f53526deae4d1b4ebb32ee8cff1010cd710f86529b8a9525acb05f4c261dbee01ea39fad2b473b6883312484ea5338e8541234a5bd9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5795a1f1aac164dbd3b2211f2f6c8dfdf
SHA1c24e652c5394fcdf616b7e48125dc2de47255978
SHA25649e29049302cd9345fc4eb83bc447826a99d7d78764d2cd075eead6bec2a9ad3
SHA51243f3142fb672a61b6cc3b9e97576c4d3c3cafe66ff4020c0e300a16c7dd6d74484325e901d750e4fd53b91ed2d3097bfde4cdd5aac3e39bea3f1994cf0d3a74e
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Filesize
4.1MB
MD59dfcbb0ca063d36fb05121c53c838c0d
SHA1abf8b0b6b3c4074c3da25f8f5d88a08f0822d138
SHA2561b1998713d6ebdd277350cdb171eab4ee9bad0272e1e033305dd04a1a798be3e
SHA51214d06238dcd04eee54af3e49a75662c5aba0515e0a280aeb926b71fa946ec7765cb29315c0671ec04851a85ce1073b80c0159fe0a0b3c9698fd02d3766f21762
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec