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Analysis
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max time kernel
150s -
max time network
155s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
27/03/2024, 22:04
Static task
static1
Behavioral task
behavioral1
Sample
337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe
Resource
win10v2004-20240226-en
General
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Target
337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe
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Size
4.1MB
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MD5
736c06a9e18f2c622a4fddf636f61b2a
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SHA1
a46b7beb104f0f3f89744bacfbd74785a878ae75
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SHA256
337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3
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SHA512
aeb651c1342668f22411f71f4cd791ace1ecf45a642343c8c9f7ed51cf9d6e754edca9b7291f666c5aa65886536cd0d7d3c54893f08a2659113d449c315cde3d
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SSDEEP
98304:h7zJ39IX2U7X1+K7Ux/HsIRAXi7v0sWM34I+aATyCWf/EKmgc/mKdOC:Vl9IX2QX1hUiXi7fN/+aAOfilcC
Malware Config
Signatures
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Glupteba payload 22 IoCs
resource yara_rule behavioral2/memory/360-2-0x0000000003290000-0x0000000003B7B000-memory.dmp family_glupteba behavioral2/memory/360-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/360-47-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1316-55-0x0000000002F30000-0x000000000381B000-memory.dmp family_glupteba behavioral2/memory/360-56-0x0000000003290000-0x0000000003B7B000-memory.dmp family_glupteba behavioral2/memory/1316-57-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/360-58-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1316-90-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1316-118-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1316-143-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1316-211-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4204-212-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4204-245-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4204-256-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4204-260-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4204-264-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4204-268-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4204-272-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4204-276-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4204-280-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4204-284-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4204-288-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1620 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4204 csrss.exe 1072 injector.exe 1820 windefender.exe 2072 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a7ee-248.dat upx behavioral2/memory/1820-253-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2072-257-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2072-266-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3084248216-1643706459-906455512-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\S-1-5-21-3084248216-1643706459-906455512-1000\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 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 File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log 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 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe File created C:\Windows\rss\csrss.exe 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe File created 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 2372 sc.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 2860 schtasks.exe 128 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-351 = "FLE Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates 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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs 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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.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\22\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates 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\22\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1644 powershell.exe 1644 powershell.exe 360 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 360 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 3356 powershell.exe 3356 powershell.exe 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 4700 powershell.exe 4700 powershell.exe 5080 powershell.exe 5080 powershell.exe 3128 powershell.exe 3128 powershell.exe 2324 powershell.exe 2324 powershell.exe 792 powershell.exe 792 powershell.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 4204 csrss.exe 4204 csrss.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 4204 csrss.exe 4204 csrss.exe 1072 injector.exe 1072 injector.exe 4204 csrss.exe 4204 csrss.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe 1072 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1644 powershell.exe Token: SeDebugPrivilege 360 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Token: SeImpersonatePrivilege 360 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe Token: SeDebugPrivilege 3356 powershell.exe Token: SeDebugPrivilege 4700 powershell.exe Token: SeDebugPrivilege 5080 powershell.exe Token: SeDebugPrivilege 3128 powershell.exe Token: SeDebugPrivilege 2324 powershell.exe Token: SeDebugPrivilege 792 powershell.exe Token: SeSystemEnvironmentPrivilege 4204 csrss.exe Token: SeSecurityPrivilege 2372 sc.exe Token: SeSecurityPrivilege 2372 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 360 wrote to memory of 1644 360 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 81 PID 360 wrote to memory of 1644 360 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 81 PID 360 wrote to memory of 1644 360 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 81 PID 1316 wrote to memory of 3356 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 86 PID 1316 wrote to memory of 3356 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 86 PID 1316 wrote to memory of 3356 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 86 PID 1316 wrote to memory of 3992 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 88 PID 1316 wrote to memory of 3992 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 88 PID 3992 wrote to memory of 1620 3992 cmd.exe 90 PID 3992 wrote to memory of 1620 3992 cmd.exe 90 PID 1316 wrote to memory of 4700 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 91 PID 1316 wrote to memory of 4700 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 91 PID 1316 wrote to memory of 4700 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 91 PID 1316 wrote to memory of 5080 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 93 PID 1316 wrote to memory of 5080 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 93 PID 1316 wrote to memory of 5080 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 93 PID 1316 wrote to memory of 4204 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 95 PID 1316 wrote to memory of 4204 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 95 PID 1316 wrote to memory of 4204 1316 337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe 95 PID 4204 wrote to memory of 3128 4204 csrss.exe 96 PID 4204 wrote to memory of 3128 4204 csrss.exe 96 PID 4204 wrote to memory of 3128 4204 csrss.exe 96 PID 4204 wrote to memory of 2324 4204 csrss.exe 102 PID 4204 wrote to memory of 2324 4204 csrss.exe 102 PID 4204 wrote to memory of 2324 4204 csrss.exe 102 PID 4204 wrote to memory of 792 4204 csrss.exe 104 PID 4204 wrote to memory of 792 4204 csrss.exe 104 PID 4204 wrote to memory of 792 4204 csrss.exe 104 PID 4204 wrote to memory of 1072 4204 csrss.exe 106 PID 4204 wrote to memory of 1072 4204 csrss.exe 106 PID 1820 wrote to memory of 4472 1820 windefender.exe 112 PID 1820 wrote to memory of 4472 1820 windefender.exe 112 PID 1820 wrote to memory of 4472 1820 windefender.exe 112 PID 4472 wrote to memory of 2372 4472 cmd.exe 113 PID 4472 wrote to memory of 2372 4472 cmd.exe 113 PID 4472 wrote to memory of 2372 4472 cmd.exe 113 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe"C:\Users\Admin\AppData\Local\Temp\337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:360 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1644
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C:\Users\Admin\AppData\Local\Temp\337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.exe"C:\Users\Admin\AppData\Local\Temp\337271e88113365bbe1dec42d11bff965649a190835cb44cdf8eed10451c6ab3.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:1316 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3356
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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:3992 -
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:1620
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4700
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5080
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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:4204 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3128
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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:2860
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4284
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2324
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:792
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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:1072
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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:128
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1820 -
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:4472 -
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:2372
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2072
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
MD5647ab47a0b906789e6ab6d6047467e99
SHA19044e03ac10e38815d3be5181ef91a558129a280
SHA25639553c659b50b2397da5097d93aac869e43bc38a00079d1c4eeb8d00961b839a
SHA5123ab2ffbe5c3e1aac5900278d2b50b809b0c709761a3677e39bc095f456764409af7c20c7954a64fef1ef145a007771bcfe880d8461cc076aab888522ef4d69e7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59218a586c49010d5363eab56d4f3bb96
SHA1d669aa9e0222c35ee885917321d8066adf9b80f1
SHA256ed7801b949a3f4ea1c24dd9fb24abd6931b935762517684561c5f101d742afd8
SHA512d1b293db624f1ddbcf3f1e01e3f992bdf2c96b30691e172e487c92fe82d55aafcd288e75074df3b150f07ed35f04a9c27be1a348393f8692ce91d96122854549
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5863defb986fce4a54b0dd8c96fb22c8f
SHA1ea99f5bca89dbb46ec48dcc220dc1e6e9ea3f3c4
SHA256e5bec6cbf6055c577a1f1d354c9f261171ea58193c8c93b2d2b63b680d6558cd
SHA5121e88df85070735d01df528956c109f9b89cfb5609ad9074218c7821facd181d83b3979517b9358dc6587530958b26e38b9ee84ab13c5dfbc704cc67748ef9669
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e19eec1e75654677adfcc5bf495a5b16
SHA1435674d4d501c0dd6481adebfad35f3acb1daf66
SHA2564f9bcc7ec0163ffa2a579b0c2aaa66d4fe817579dd4309d253e7c49313067d57
SHA512e93cbbec741c4234c9ec16d6b8990d6a9d6dff5f45a858e089f7aa133eaaaa21d971c88b573f7f218e0e4070fc38071fc1a7aab58423572fef3c3da9df8fc039
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50b8ec019cbea865424ef1a24942cd7a4
SHA12db9fb74031ce230579e637b66d4f6864d19e64d
SHA2560ef737284c92576f975e54082a91b6c40d67a6d65a4a70e8dc6c8e3f8f57399d
SHA512bcfef1e18f897bcc0d49dc0e2d07106535a78d8ff88c15ccbf9cadd9882a33d2c1f1ff2b628b6b6ae83d291821ab64456b468a0b4ba299b5c38567896872af4a
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Filesize
2.8MB
MD5a95ea620e8f1f3aadfc4cab3ec3a0dd4
SHA16324d852f7badffced52ae4b3d0f40173603e82b
SHA256842f120fcbeb8eaf9eb173e7da2d1630388d1085297caa1bb9d024fc3be63e7b
SHA512fc78b429b538a918a46218f14937552ddb713c0dca08cbf1b820491652ef5b5c4733893848d13e082743c387ac7504731a2c2c8bdd0741cbbd7564e05481f76c
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Filesize
3.1MB
MD560c3732c430eb7a75caffff5e17aef92
SHA188e35b76b130e01855587fbcff7caa5214c77b93
SHA25624f1135ebbf38abbcd2b866099e9a6b7bb1da071651c5f3b05c6113ec7b4eb60
SHA5126a3b2353a3d4b50141b1f1208a16f52fef15209ae483b9e9afa2831ba264492eb08c9d701e7ab0dbdc445433301bdaea63405c02ca564ee9ea14b21dab52dbaa
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec