Analysis
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max time kernel
149s -
max time network
132s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-04-2024 14:07
Static task
static1
Behavioral task
behavioral1
Sample
5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe
Resource
win10v2004-20240412-en
General
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Target
5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe
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Size
4.2MB
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MD5
2512b08a1bc97d813797fc59f756a374
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SHA1
9973655d71eec6b09b3cee646dc8f2afbe541251
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SHA256
5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c
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SHA512
a84d3930c1feca2c50aa448d2f06e38f660a940413f479a314402a5002ccb59bb87c03c36839fb6398eebf8b3ec7ddf30e386ea13e5f57009ee61ddbd8821131
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SSDEEP
98304:7u15A1GiNRFuKfVvdEh8/k6ld6teGU//blllQO5EUt0+BFZRUpdVYn:7aARFuKJWhQkavn//blllQdNaFDGX0
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/3568-2-0x0000000004040000-0x000000000492B000-memory.dmp family_glupteba behavioral2/memory/3568-3-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2248-53-0x0000000003F60000-0x000000000484B000-memory.dmp family_glupteba behavioral2/memory/2248-54-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/3568-67-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2248-145-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/540-238-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/540-250-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/540-252-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/540-254-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/540-257-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/540-260-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/540-263-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/540-268-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/540-270-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/540-273-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/540-275-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/540-278-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/540-281-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 1868 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 540 csrss.exe 4820 injector.exe 4352 windefender.exe 660 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/4352-248-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/660-253-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/660-258-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\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.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription 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.
Processes:
5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe -
Drops file in Windows directory 4 IoCs
Processes:
5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.execsrss.exedescription ioc process File opened for modification C:\Windows\rss 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe File created C:\Windows\rss\csrss.exe 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.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.
Processes:
sc.exepid process 5068 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 4216 schtasks.exe 3604 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exewindefender.exe5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exepowershell.exepowershell.exepowershell.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 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\26\52C64B7E\@tzres.dll,-631 = "Tokyo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.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\SmartCardRoot\CRLs 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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-281 = "Central Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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\26\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed 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\26\52C64B7E\@tzres.dll,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-741 = "New Zealand Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 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\26\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-52 = "Greenland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-272 = "Greenwich Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exepowershell.exe5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 2216 powershell.exe 2216 powershell.exe 3568 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe 3568 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe 4696 powershell.exe 4696 powershell.exe 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe 2456 powershell.exe 2456 powershell.exe 2072 powershell.exe 2072 powershell.exe 2908 powershell.exe 2908 powershell.exe 2824 powershell.exe 2824 powershell.exe 5032 powershell.exe 5032 powershell.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 540 csrss.exe 540 csrss.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 540 csrss.exe 540 csrss.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 540 csrss.exe 540 csrss.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 2216 powershell.exe Token: SeDebugPrivilege 3568 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Token: SeImpersonatePrivilege 3568 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe Token: SeDebugPrivilege 4696 powershell.exe Token: SeDebugPrivilege 2456 powershell.exe Token: SeDebugPrivilege 2072 powershell.exe Token: SeDebugPrivilege 2908 powershell.exe Token: SeDebugPrivilege 2824 powershell.exe Token: SeDebugPrivilege 5032 powershell.exe Token: SeSystemEnvironmentPrivilege 540 csrss.exe Token: SeSecurityPrivilege 5068 sc.exe Token: SeSecurityPrivilege 5068 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 3568 wrote to memory of 2216 3568 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe powershell.exe PID 3568 wrote to memory of 2216 3568 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe powershell.exe PID 3568 wrote to memory of 2216 3568 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe powershell.exe PID 2248 wrote to memory of 4696 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe powershell.exe PID 2248 wrote to memory of 4696 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe powershell.exe PID 2248 wrote to memory of 4696 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe powershell.exe PID 2248 wrote to memory of 2292 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe cmd.exe PID 2248 wrote to memory of 2292 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe cmd.exe PID 2292 wrote to memory of 1868 2292 cmd.exe netsh.exe PID 2292 wrote to memory of 1868 2292 cmd.exe netsh.exe PID 2248 wrote to memory of 2456 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe powershell.exe PID 2248 wrote to memory of 2456 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe powershell.exe PID 2248 wrote to memory of 2456 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe powershell.exe PID 2248 wrote to memory of 2072 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe powershell.exe PID 2248 wrote to memory of 2072 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe powershell.exe PID 2248 wrote to memory of 2072 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe powershell.exe PID 2248 wrote to memory of 540 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe csrss.exe PID 2248 wrote to memory of 540 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe csrss.exe PID 2248 wrote to memory of 540 2248 5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe csrss.exe PID 540 wrote to memory of 2908 540 csrss.exe powershell.exe PID 540 wrote to memory of 2908 540 csrss.exe powershell.exe PID 540 wrote to memory of 2908 540 csrss.exe powershell.exe PID 540 wrote to memory of 2824 540 csrss.exe powershell.exe PID 540 wrote to memory of 2824 540 csrss.exe powershell.exe PID 540 wrote to memory of 2824 540 csrss.exe powershell.exe PID 540 wrote to memory of 5032 540 csrss.exe powershell.exe PID 540 wrote to memory of 5032 540 csrss.exe powershell.exe PID 540 wrote to memory of 5032 540 csrss.exe powershell.exe PID 540 wrote to memory of 4820 540 csrss.exe injector.exe PID 540 wrote to memory of 4820 540 csrss.exe injector.exe PID 4352 wrote to memory of 4124 4352 windefender.exe cmd.exe PID 4352 wrote to memory of 4124 4352 windefender.exe cmd.exe PID 4352 wrote to memory of 4124 4352 windefender.exe cmd.exe PID 4124 wrote to memory of 5068 4124 cmd.exe sc.exe PID 4124 wrote to memory of 5068 4124 cmd.exe sc.exe PID 4124 wrote to memory of 5068 4124 cmd.exe sc.exe -
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\5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe"C:\Users\Admin\AppData\Local\Temp\5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3568 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2216
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C:\Users\Admin\AppData\Local\Temp\5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.exe"C:\Users\Admin\AppData\Local\Temp\5c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c.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:2248 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4696
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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:2292 -
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:1868
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2456
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2072
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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:540 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2908
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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:4216
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1004
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2824
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5032
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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:4820
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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:3604
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4352 -
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:4124 -
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:5068
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:660
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
MD550a80caff0dd46e603b88e2ed955c7fc
SHA18b004651f073b78cdf970ea59e3b6dd64185fbc2
SHA256fa248df4cdb063c2c1377a23b3ae077354d3b8c1fa7078b0a0b433a0bc2e168e
SHA512c439cffce21b4d50b3743304f511d857a1e54cae5a7b50b3d35a2ab18ff30b5645239d570d9e1d48f1a8bce500966716f32ca8033d171817b336f358fa068794
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e3091b40aa5bdeec386fa2898327e87b
SHA1c6ba47c69576055f0faf1b81c59069c8011c5045
SHA256c96ae74aff624da13af6ac4bf76b997c28fa07f7bd96d4ff5c3fe53d2b7eeeef
SHA5126a54eaa11c2e723cd23d9244a9c90bfbae3d5c45812bd9d95627201b8ae87850b7910476054573f166bb27d86d3fd6d7f8e576b97515840f24a9f3615d3df53a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f673ac9bae6369588ab4fb4bd1292944
SHA1dc38b416dbd074acce8e78c7ff9744aea805662d
SHA25606ead9aa7c73b79ba57c651262b765ce1e2614f5bb8851f4b81432a8e41cc2d6
SHA51278c71e63c138b19b182db36719bcf2b1d2ccde607310122c141702ef149ecb94db1d63e1a73921addbd0808d7429bdcc0aa61f964cf416f55e5c6724555bf320
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b1015e903d4e6d16ae2dda5aa1badad7
SHA123bb940495a873dcce8346f960d2369cbd8e0f3a
SHA2561f291e51c9fb37194145f95032e2791a9fa1767dd905ce50e2a879bbb8ee9eb3
SHA512aa99dbf976da208fde591c24c8e36a9d4070ea7b8d532f7167560cc164705f322f9696eacb0331481c211fc21ed18f7182ebaf140f09f7945cf49e6ab6a7cf7a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a16ab384990b1177c8bf059f4f0f0b92
SHA1d146b43c42ef4b9c2cad31db096c6e403031649e
SHA256425e5ec2798af6374c80072fe35e3f53346f08d35ba5f601315a4b653043b3f7
SHA51249dda85714c143aca14ab267a2f4fafd0f111698c0c30cafaffc0a21c94e56362e957fdc8396e34b360ed13064bf3dde5f2e1911b97c6b29e1a012a8984c8fb7
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Filesize
4.2MB
MD52512b08a1bc97d813797fc59f756a374
SHA19973655d71eec6b09b3cee646dc8f2afbe541251
SHA2565c3f4241fbb64a371dc6ee56dc53a2bf9cf6c5715e7cae5f0218f9bc20ae6f6c
SHA512a84d3930c1feca2c50aa448d2f06e38f660a940413f479a314402a5002ccb59bb87c03c36839fb6398eebf8b3ec7ddf30e386ea13e5f57009ee61ddbd8821131
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec