Analysis
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max time kernel
149s -
max time network
126s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 14:01
Static task
static1
Behavioral task
behavioral1
Sample
8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Resource
win10v2004-20240508-en
General
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Target
8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
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Size
4.1MB
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MD5
d1d665f061f612842c5980585f7c5353
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SHA1
f952aff90ffcf50edd0f0d5e5c90864a861989ce
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SHA256
8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501
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SHA512
1ba8f127644498d96434ee55b28e2989ee06973db9463f3db5d41a0ec313f669ccd74aa8366e70626c4c02b844c1a72d77c6b6e8aba222b2d76511b4ff098c0c
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SSDEEP
98304:8NaXJU8AJvaro5mDbVFqT6QhicqJuM7BOvJODhfBAiYJAl59Wu:8qU8A9EamDpImBOY9f2Nu
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/4472-2-0x0000000004950000-0x000000000523B000-memory.dmp family_glupteba behavioral2/memory/4472-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4472-99-0x0000000004950000-0x000000000523B000-memory.dmp family_glupteba behavioral2/memory/4472-98-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3976-124-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/4472-147-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3516-201-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3516-212-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3516-215-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3516-218-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3516-221-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3516-224-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3516-227-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3516-230-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3516-233-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3516-236-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3516-239-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3516-242-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral2/memory/3516-245-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 1540 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3516 csrss.exe 2060 injector.exe 2508 windefender.exe 2140 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x001a00000002ab2a-205.dat upx behavioral2/memory/2508-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2140-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2508-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2140-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2140-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
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 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.
Processes:
8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe -
Drops file in Windows directory 4 IoCs
Processes:
8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe File created C:\Windows\rss\csrss.exe 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.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 3060 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4892 powershell.exe 2752 powershell.exe 2260 powershell.exe 2296 powershell.exe 2324 powershell.exe 1596 powershell.exe 1352 powershell.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 3256 schtasks.exe 4988 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exewindefender.exe8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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\2a\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs 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,-131 = "US Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA 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,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.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\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.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\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.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,-2452 = "Saint Pierre Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2771 = "Omsk Daylight 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,-2751 = "Tomsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.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,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-352 = "FLE Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exepowershell.exe8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 2324 powershell.exe 2324 powershell.exe 4472 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 4472 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 1596 powershell.exe 1596 powershell.exe 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 1352 powershell.exe 1352 powershell.exe 4892 powershell.exe 4892 powershell.exe 2752 powershell.exe 2752 powershell.exe 2260 powershell.exe 2260 powershell.exe 2296 powershell.exe 2296 powershell.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 3516 csrss.exe 3516 csrss.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 3516 csrss.exe 3516 csrss.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 3516 csrss.exe 3516 csrss.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 2324 powershell.exe Token: SeDebugPrivilege 4472 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Token: SeImpersonatePrivilege 4472 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Token: SeDebugPrivilege 1596 powershell.exe Token: SeDebugPrivilege 1352 powershell.exe Token: SeDebugPrivilege 4892 powershell.exe Token: SeDebugPrivilege 2752 powershell.exe Token: SeDebugPrivilege 2260 powershell.exe Token: SeDebugPrivilege 2296 powershell.exe Token: SeSystemEnvironmentPrivilege 3516 csrss.exe Token: SeSecurityPrivilege 3060 sc.exe Token: SeSecurityPrivilege 3060 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 4472 wrote to memory of 2324 4472 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 83 PID 4472 wrote to memory of 2324 4472 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 83 PID 4472 wrote to memory of 2324 4472 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 83 PID 3976 wrote to memory of 1596 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 88 PID 3976 wrote to memory of 1596 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 88 PID 3976 wrote to memory of 1596 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 88 PID 3976 wrote to memory of 2148 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 90 PID 3976 wrote to memory of 2148 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 90 PID 2148 wrote to memory of 1540 2148 cmd.exe 92 PID 2148 wrote to memory of 1540 2148 cmd.exe 92 PID 3976 wrote to memory of 1352 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 93 PID 3976 wrote to memory of 1352 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 93 PID 3976 wrote to memory of 1352 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 93 PID 3976 wrote to memory of 4892 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 95 PID 3976 wrote to memory of 4892 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 95 PID 3976 wrote to memory of 4892 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 95 PID 3976 wrote to memory of 3516 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 97 PID 3976 wrote to memory of 3516 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 97 PID 3976 wrote to memory of 3516 3976 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 97 PID 3516 wrote to memory of 2752 3516 csrss.exe 98 PID 3516 wrote to memory of 2752 3516 csrss.exe 98 PID 3516 wrote to memory of 2752 3516 csrss.exe 98 PID 3516 wrote to memory of 2260 3516 csrss.exe 104 PID 3516 wrote to memory of 2260 3516 csrss.exe 104 PID 3516 wrote to memory of 2260 3516 csrss.exe 104 PID 3516 wrote to memory of 2296 3516 csrss.exe 106 PID 3516 wrote to memory of 2296 3516 csrss.exe 106 PID 3516 wrote to memory of 2296 3516 csrss.exe 106 PID 3516 wrote to memory of 2060 3516 csrss.exe 108 PID 3516 wrote to memory of 2060 3516 csrss.exe 108 PID 2508 wrote to memory of 4256 2508 windefender.exe 114 PID 2508 wrote to memory of 4256 2508 windefender.exe 114 PID 2508 wrote to memory of 4256 2508 windefender.exe 114 PID 4256 wrote to memory of 3060 4256 cmd.exe 115 PID 4256 wrote to memory of 3060 4256 cmd.exe 115 PID 4256 wrote to memory of 3060 4256 cmd.exe 115 -
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\8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe"C:\Users\Admin\AppData\Local\Temp\8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4472 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2324
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C:\Users\Admin\AppData\Local\Temp\8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe"C:\Users\Admin\AppData\Local\Temp\8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.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:3976 -
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:1596
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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:2148 -
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:1540
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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:1352
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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:4892
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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:3516 -
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:2752
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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:3256
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3780
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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:2260
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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:2296
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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:2060
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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:4988
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2508 -
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:4256 -
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:3060
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2140
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
MD53c148c5222196e1bb5226324a68b0fd8
SHA1537e5519dd27ea975486e8d55f31fd34f6d94963
SHA2563a6817bc2d7d572cfc896d407027ac4f8d35db1563608fa828b155bdb5bb483e
SHA512d94d739194293f0898a2c43a850300adf9de47d8106962dddb5deef2ead84b0e74df4e37289298e9309d96d19c452721fb1ae5a040477bdc1b4dba78a163a1f8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD542632efd8213d15f840f59d3adbad324
SHA1784a276bb96cfa5ec83c23deb82c1ff3ec824c0d
SHA2569a4ceef0bb318b9fdef0cbf9f85e8127ad88bf2944d40ed9074bc4fce6675611
SHA512fcee150fd2cf51b6f4703816dbc211c27b4f74b87186e5da07cb8cfb24e0e65ad7f9b57b409aa0804be083f678a30736e01a9ab3fdd7711d4f8c4317276ffcd6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bb294c2adb125b46b6427587c53e76e1
SHA1adb5f3ad9bec0316bafa1e7cf21c48014c238fd0
SHA256d7c1b6ca0f053bfdf39a4160b0e3b31036ce4c92bde511c0bc13ba624e563996
SHA5127701be3b0f0a1f603951613180606c2b4362c89dadb447b4dd263ccf92d8c5133e1aa2a7a0383d460ce855db7316bf5b9dce9882ea39318a938900c32c247869
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD521b3a7b811132319b3585f295b0c3448
SHA160c30b2db36c4104a1a77c5872c7cee48cf9f2f4
SHA2568af71f99ead5c57a3a59396a08e456b42ddaae54439eca2cb6dc18f260f28406
SHA5127aad7d8b350a95c3abbab56d94167a2789a57949480cd13dffc41bcf5ead1a772f9bcb0e15040cd4ed6fbbea386aefa552715c5b818d8aaf7ce5eb27b93b983f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53763c412dcecf276fea01c410a2a0c92
SHA12cdf993dc7037c85e11ce00e5d5d7c84ef58b820
SHA2569b3a25ba1e8275848f920786d5788f8fdd642f64610748ef8b86b25ab9311775
SHA51218caff9a1d410c41d11d3c6f4390048d24f7595126b421d5465ae6c1c8b9a01d62718f163ee2a72b0d3989249634b04faff17b9e89a7bc7c434727eb6c15ccae
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Filesize
4.1MB
MD5d1d665f061f612842c5980585f7c5353
SHA1f952aff90ffcf50edd0f0d5e5c90864a861989ce
SHA2568c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501
SHA5121ba8f127644498d96434ee55b28e2989ee06973db9463f3db5d41a0ec313f669ccd74aa8366e70626c4c02b844c1a72d77c6b6e8aba222b2d76511b4ff098c0c
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec