Analysis
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max time kernel
149s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
16/05/2024, 15:52
Static task
static1
Behavioral task
behavioral1
Sample
bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe
Resource
win10v2004-20240508-en
General
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Target
bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe
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Size
4.1MB
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MD5
eb49dffeab4ef8d5c3824aca23359ef2
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SHA1
c1433b8a5b533b0b39114e4cacad51b303830774
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SHA256
bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f
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SHA512
25e33b6e6d2b18a3c7bfc399a2bfe67222897c76e39e65076d72a663f8fdc5fca944d68bc96d622d897da01f4fd96e95d16f3434684af10b97dd08dee5334456
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SSDEEP
98304:83tbwrB0kIuN3D8bfUXVQCwP9Kpl7QJG8rgohSw8D2z60ht59X5:8dQIuMQA9oQJ/gXD6
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/1144-2-0x0000000002E20000-0x000000000370B000-memory.dmp family_glupteba behavioral2/memory/1144-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1144-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1144-76-0x0000000002E20000-0x000000000370B000-memory.dmp family_glupteba behavioral2/memory/1980-122-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1980-128-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1080-197-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1080-211-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1080-215-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1080-218-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1080-221-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1080-224-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1080-227-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1080-230-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1080-233-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1080-236-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1080-239-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1080-242-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1188 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1080 csrss.exe 4840 injector.exe 3464 windefender.exe 3036 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa01-205.dat upx behavioral2/memory/3464-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3036-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3464-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3036-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3036-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe File created C:\Windows\rss\csrss.exe bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.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 2636 sc.exe -
pid Process 2796 powershell.exe 4124 powershell.exe 3128 powershell.exe 2440 powershell.exe 5020 powershell.exe 852 powershell.exe 2320 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 2148 schtasks.exe 5108 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,-2771 = "Omsk Daylight Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.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,-741 = "New Zealand Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\2a\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2632 = "Norfolk 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,-161 = "Central Daylight Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.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,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.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,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1471 = "Magadan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs 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,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2796 powershell.exe 2796 powershell.exe 1144 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 1144 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 4124 powershell.exe 4124 powershell.exe 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 3128 powershell.exe 3128 powershell.exe 2440 powershell.exe 2440 powershell.exe 5020 powershell.exe 5020 powershell.exe 852 powershell.exe 852 powershell.exe 2320 powershell.exe 2320 powershell.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 1080 csrss.exe 1080 csrss.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 1080 csrss.exe 1080 csrss.exe 4840 injector.exe 4840 injector.exe 1080 csrss.exe 1080 csrss.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe 4840 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2796 powershell.exe Token: SeDebugPrivilege 1144 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Token: SeImpersonatePrivilege 1144 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Token: SeDebugPrivilege 4124 powershell.exe Token: SeDebugPrivilege 3128 powershell.exe Token: SeDebugPrivilege 2440 powershell.exe Token: SeDebugPrivilege 5020 powershell.exe Token: SeDebugPrivilege 852 powershell.exe Token: SeDebugPrivilege 2320 powershell.exe Token: SeSystemEnvironmentPrivilege 1080 csrss.exe Token: SeSecurityPrivilege 2636 sc.exe Token: SeSecurityPrivilege 2636 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1144 wrote to memory of 2796 1144 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 78 PID 1144 wrote to memory of 2796 1144 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 78 PID 1144 wrote to memory of 2796 1144 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 78 PID 1980 wrote to memory of 4124 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 83 PID 1980 wrote to memory of 4124 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 83 PID 1980 wrote to memory of 4124 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 83 PID 1980 wrote to memory of 5112 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 85 PID 1980 wrote to memory of 5112 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 85 PID 5112 wrote to memory of 1188 5112 cmd.exe 87 PID 5112 wrote to memory of 1188 5112 cmd.exe 87 PID 1980 wrote to memory of 3128 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 88 PID 1980 wrote to memory of 3128 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 88 PID 1980 wrote to memory of 3128 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 88 PID 1980 wrote to memory of 2440 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 90 PID 1980 wrote to memory of 2440 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 90 PID 1980 wrote to memory of 2440 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 90 PID 1980 wrote to memory of 1080 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 92 PID 1980 wrote to memory of 1080 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 92 PID 1980 wrote to memory of 1080 1980 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 92 PID 1080 wrote to memory of 5020 1080 csrss.exe 93 PID 1080 wrote to memory of 5020 1080 csrss.exe 93 PID 1080 wrote to memory of 5020 1080 csrss.exe 93 PID 1080 wrote to memory of 852 1080 csrss.exe 98 PID 1080 wrote to memory of 852 1080 csrss.exe 98 PID 1080 wrote to memory of 852 1080 csrss.exe 98 PID 1080 wrote to memory of 2320 1080 csrss.exe 101 PID 1080 wrote to memory of 2320 1080 csrss.exe 101 PID 1080 wrote to memory of 2320 1080 csrss.exe 101 PID 1080 wrote to memory of 4840 1080 csrss.exe 103 PID 1080 wrote to memory of 4840 1080 csrss.exe 103 PID 3464 wrote to memory of 3440 3464 windefender.exe 109 PID 3464 wrote to memory of 3440 3464 windefender.exe 109 PID 3464 wrote to memory of 3440 3464 windefender.exe 109 PID 3440 wrote to memory of 2636 3440 cmd.exe 110 PID 3440 wrote to memory of 2636 3440 cmd.exe 110 PID 3440 wrote to memory of 2636 3440 cmd.exe 110 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe"C:\Users\Admin\AppData\Local\Temp\bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1144 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2796
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C:\Users\Admin\AppData\Local\Temp\bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe"C:\Users\Admin\AppData\Local\Temp\bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.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:1980 -
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:4124
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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:5112 -
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:1188
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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:3128
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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:2440
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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:1080 -
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:5020
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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:2148
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:708
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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:852
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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:2320
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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:4840
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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:5108
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3464 -
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:3440 -
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:2636
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3036
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
MD568b6a31706c29c9583c1a8eb7ad4a973
SHA1aee781de0e56867d1f0346fe0b5ea15b93b91340
SHA256c98ed1ed67398f6012e70819c27683e61b65b70cc48e1d94263450007a49325f
SHA512d2ab9858cc9baf8e46b06a0cbb0de7c271f02fd65a62fab24d929ae58403e773e62ac96f95dfc509e686bd2ac3c5050016f93bb00b4a21ed7722ddb44f06d224
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD531d9300feef77e2cfd6a506d87b27ed5
SHA1188f59ff57bf358604f288c1ba5f3c09bfcbfc25
SHA256f31d86b14bf4033662e4f3d5f53b7abf587766646a202731549bad818d922347
SHA5123984cbd05e229a3c83705701482972d92a52b4aa0549dc3b4f81874b3d26367406b63cdd4e429a90b6ebe69379e86fd7f23f48cf0f6ea13ba895760a8920f89b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d85b2e13f0d580c9c7e5f283697115d4
SHA1d7fc844ad26900d7767d922937496d52de78da91
SHA256dffe57411da1ff5e9571e17d2f15925b14a6b6cd2262f19c36014da7e9ba7c85
SHA512b2b29e933bee00443782556bb139c7b3abb0b9fb9ae50f0b923f9bbef2dea85f82ee5b53b6a111b15070171aafbcd35b8f7893b9d741a16cfbf3061e09aba916
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50beb7ed7f2e83d16f942d1dbd871317e
SHA165a2721bbf879ad71e3b00a2c503f73855ee39c8
SHA256d971bf7c36819c165670b00e87df84fcbd3e16e743a265ef154df78a3d5e48ed
SHA5125978870c00b55843158d6c3d16bd9115ec94ee9cd29acf1c04ce550252241eb98150a8f36f177a35b6ebe69ee29dc61fbcb49781259d5f7d9cf2ca9a2292d46b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cab131d53aa60e08c924c064092009d3
SHA15b0b6433561a1790531747a850f3c87e6d46fa83
SHA25689b7db6b46599b1f54714e6d4afafca69451b401ad57f035046c625ed4e27131
SHA512ad90e4686858370ca50dafdd7bebac5b99d9d1bda4b0596de6714d58fb89525b405b0363f60f3ee5647c27dcb532d269738e4b2c15bb05cc949550cffd6d215b
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Filesize
4.1MB
MD5eb49dffeab4ef8d5c3824aca23359ef2
SHA1c1433b8a5b533b0b39114e4cacad51b303830774
SHA256bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f
SHA51225e33b6e6d2b18a3c7bfc399a2bfe67222897c76e39e65076d72a663f8fdc5fca944d68bc96d622d897da01f4fd96e95d16f3434684af10b97dd08dee5334456
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec