Analysis
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max time kernel
150s -
max time network
133s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-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 behavioral1/memory/1276-2-0x0000000002E10000-0x00000000036FB000-memory.dmp family_glupteba behavioral1/memory/1276-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1276-52-0x0000000002E10000-0x00000000036FB000-memory.dmp family_glupteba behavioral1/memory/1276-76-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3988-130-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4976-205-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4976-216-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4976-224-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4976-227-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4976-231-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4976-234-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4976-237-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4976-239-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4976-242-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4976-246-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4976-249-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4976-251-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4976-254-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3548 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4976 csrss.exe 1572 injector.exe 3968 windefender.exe 3620 windefender.exe -
resource yara_rule behavioral1/files/0x00090000000233d0-215.dat upx behavioral1/memory/3968-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3620-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3968-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3620-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3620-232-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\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\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 File created 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 3780 sc.exe -
pid Process 2408 powershell.exe 4072 powershell.exe 4360 powershell.exe 3624 powershell.exe 792 powershell.exe 4284 powershell.exe 3660 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 116 schtasks.exe 4264 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight 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,-2411 = "Marquesas 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-751 = "Tonga Daylight 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" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.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,-364 = "Middle East Daylight 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\@tzres.dll,-2772 = "Omsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-334 = "Jordan 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,-2591 = "Tocantins Daylight Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.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,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3141 = "South Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.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,-261 = "GMT 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,-112 = "Eastern Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-532 = "Sri Lanka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.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\2a\52C64B7E\@tzres.dll,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2181 = "Astrakhan Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2408 powershell.exe 2408 powershell.exe 1276 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 1276 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 4072 powershell.exe 4072 powershell.exe 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 4360 powershell.exe 4360 powershell.exe 3624 powershell.exe 3624 powershell.exe 792 powershell.exe 792 powershell.exe 4284 powershell.exe 4284 powershell.exe 3660 powershell.exe 3660 powershell.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 4976 csrss.exe 4976 csrss.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 4976 csrss.exe 4976 csrss.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 4976 csrss.exe 4976 csrss.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe 1572 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2408 powershell.exe Token: SeDebugPrivilege 1276 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Token: SeImpersonatePrivilege 1276 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe Token: SeDebugPrivilege 4072 powershell.exe Token: SeDebugPrivilege 4360 powershell.exe Token: SeDebugPrivilege 3624 powershell.exe Token: SeDebugPrivilege 792 powershell.exe Token: SeDebugPrivilege 4284 powershell.exe Token: SeDebugPrivilege 3660 powershell.exe Token: SeSystemEnvironmentPrivilege 4976 csrss.exe Token: SeSecurityPrivilege 3780 sc.exe Token: SeSecurityPrivilege 3780 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1276 wrote to memory of 2408 1276 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 88 PID 1276 wrote to memory of 2408 1276 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 88 PID 1276 wrote to memory of 2408 1276 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 88 PID 3988 wrote to memory of 4072 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 94 PID 3988 wrote to memory of 4072 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 94 PID 3988 wrote to memory of 4072 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 94 PID 3988 wrote to memory of 2784 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 98 PID 3988 wrote to memory of 2784 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 98 PID 2784 wrote to memory of 3548 2784 cmd.exe 100 PID 2784 wrote to memory of 3548 2784 cmd.exe 100 PID 3988 wrote to memory of 4360 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 101 PID 3988 wrote to memory of 4360 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 101 PID 3988 wrote to memory of 4360 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 101 PID 3988 wrote to memory of 3624 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 103 PID 3988 wrote to memory of 3624 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 103 PID 3988 wrote to memory of 3624 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 103 PID 3988 wrote to memory of 4976 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 105 PID 3988 wrote to memory of 4976 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 105 PID 3988 wrote to memory of 4976 3988 bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f.exe 105 PID 4976 wrote to memory of 792 4976 csrss.exe 106 PID 4976 wrote to memory of 792 4976 csrss.exe 106 PID 4976 wrote to memory of 792 4976 csrss.exe 106 PID 4976 wrote to memory of 4284 4976 csrss.exe 112 PID 4976 wrote to memory of 4284 4976 csrss.exe 112 PID 4976 wrote to memory of 4284 4976 csrss.exe 112 PID 4976 wrote to memory of 3660 4976 csrss.exe 114 PID 4976 wrote to memory of 3660 4976 csrss.exe 114 PID 4976 wrote to memory of 3660 4976 csrss.exe 114 PID 4976 wrote to memory of 1572 4976 csrss.exe 117 PID 4976 wrote to memory of 1572 4976 csrss.exe 117 PID 3968 wrote to memory of 4936 3968 windefender.exe 124 PID 3968 wrote to memory of 4936 3968 windefender.exe 124 PID 3968 wrote to memory of 4936 3968 windefender.exe 124 PID 4936 wrote to memory of 3780 4936 cmd.exe 125 PID 4936 wrote to memory of 3780 4936 cmd.exe 125 PID 4936 wrote to memory of 3780 4936 cmd.exe 125 -
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:1276 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2408
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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:3988 -
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:4072
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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:2784 -
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:3548
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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:4360
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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:3624
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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:4976 -
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:792
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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:116
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3932
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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:4284
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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:3660
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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:1572
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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:4264
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3968 -
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:4936 -
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:3780
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3620
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55d9a7a9bf9d7ba8830a733d0f8d530f4
SHA164b73d237f9ebcc9910054d5ce307a81fb442bb9
SHA256b01cb61d1322e45d8c76a5f62956d85a3ba48e50b83b3bc0ad9128d0aa79b29c
SHA5121c692fa5441d9d0d66bd67c9f97fb8aed738f1f4da1db56c6fe476c66de4945203379a6b4c19848e80e381fe6352f118f6f156488d3814b27ea6bb6a2b1b82f3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5955a4d94718ee3f933de2ba4d42795cb
SHA16874b2b7f04f253fd9da4a5bef6ecad05891bdfe
SHA256a97fa14ee98d8a450a2805ff8e34b47efdaf06d6172e50a74caa690daebc5c93
SHA51240323f937d8f40f5cc4c94c00d430f54bf2b31f4caeefaddb7e9f135cf34e3061a3646809734d7d44131e36f7c49925cfc5db05a80c18e33d4c6755e19a7ec6c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b7c51a2da1a7ebe845282c92d23d8f86
SHA1781da42b5ed25b555b0b623152e7fe889fb58bc3
SHA256a0dc88e93d79c144650627f61463ef3e0582d5960d73dc2822691cccb0e8a2a2
SHA512fd827f4ce3d43d017ac7baeabea4c63e1cdb14101c02204ed4f193fab8b7349add9c0a9e7acaffc2e044c092f658146f7a260f04a6db9adc6cc99b748405e615
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d7793d478d0b1f30e85635851bc9354d
SHA14821a385ffbecd737694571b19d7cc3446d32965
SHA256a9c331f92e950eada338b88e4d8cb4a97236a75983f01b0851a96484f438d4c7
SHA512192e8215580c918de1b7b2339736267a4021f6f8e76710568996b20cf09342c2d9d1dd1f6b8958c5690584d5771d54fea09ffaf5520aa5f9201da7c35722dfdf
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52a606c8a55fc6abbd4869b2cb9befea7
SHA13cd3a89f5b58cd9c16e3b6fc2f3f2790ff555c63
SHA2565fcf085c6942718b698d7a88f28c49dd79785f9a4060035f272005c01eb21f07
SHA512d54ace55468c346a671a2e094fd806020f20437e32212be95f01ceb3c21bf458f245aa95096b22819fe57b14c63f35b3710cf3e7cf1d98c467999cb57bc4198c
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Filesize
4.1MB
MD5eb49dffeab4ef8d5c3824aca23359ef2
SHA1c1433b8a5b533b0b39114e4cacad51b303830774
SHA256bfb2f53c88ceb3917a5a3d0b0a691a2ed11c8f86d7c8b8353e6d4d69ebfe445f
SHA51225e33b6e6d2b18a3c7bfc399a2bfe67222897c76e39e65076d72a663f8fdc5fca944d68bc96d622d897da01f4fd96e95d16f3434684af10b97dd08dee5334456
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec