Analysis
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max time kernel
149s -
max time network
146s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 01:42
Static task
static1
Behavioral task
behavioral1
Sample
fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe
Resource
win10v2004-20240508-en
General
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Target
fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe
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Size
4.1MB
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MD5
1d376613cf4eaa65ecfb1c8fc808cb56
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SHA1
4145872c7772abd537e707d2217cd71010140bae
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SHA256
fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336
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SHA512
262d3c00e2f28c65b73814bb28787b8fd00461162edf58bb5a6d35dd0e91706becc0841898597b25d6985895cb1b1313581413517be00d5002e683c7a11ca88d
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SSDEEP
98304:CQGLdTw13YmTlGi/xMFRAVNS6wnhY59m5e0z8345g:CLpT0YNaxn5wu5s59YF
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/4552-2-0x0000000004A50000-0x000000000533B000-memory.dmp family_glupteba behavioral2/memory/4552-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4688-122-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4552-135-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4552-171-0x0000000004A50000-0x000000000533B000-memory.dmp family_glupteba behavioral2/memory/4552-194-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3216-201-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3216-211-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3216-214-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3216-217-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3216-220-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3216-223-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3216-226-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3216-229-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3216-232-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3216-235-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3216-238-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3216-241-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3216-244-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1088 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3216 csrss.exe 3424 injector.exe 2488 windefender.exe 412 windefender.exe -
resource yara_rule behavioral2/memory/2488-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/files/0x000200000002aa0b-205.dat upx behavioral2/memory/2488-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/412-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/412-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/412-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\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 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 -
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 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe File created C:\Windows\rss\csrss.exe fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.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 2400 sc.exe -
pid Process 1388 powershell.exe 952 powershell.exe 4024 powershell.exe 1784 powershell.exe 1960 powershell.exe 860 powershell.exe 1680 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 4828 schtasks.exe 2088 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2181 = "Astrakhan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.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,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-441 = "Arabian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "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,-731 = "Fiji Daylight Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA 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\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-231 = "Hawaiian Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs 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,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 860 powershell.exe 860 powershell.exe 4552 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 4552 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 1680 powershell.exe 1680 powershell.exe 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 1388 powershell.exe 1388 powershell.exe 952 powershell.exe 952 powershell.exe 4024 powershell.exe 4024 powershell.exe 1784 powershell.exe 1784 powershell.exe 1960 powershell.exe 1960 powershell.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3216 csrss.exe 3216 csrss.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3216 csrss.exe 3216 csrss.exe 3424 injector.exe 3424 injector.exe 3216 csrss.exe 3216 csrss.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe 3424 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 860 powershell.exe Token: SeDebugPrivilege 4552 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Token: SeImpersonatePrivilege 4552 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe Token: SeDebugPrivilege 1680 powershell.exe Token: SeDebugPrivilege 1388 powershell.exe Token: SeDebugPrivilege 952 powershell.exe Token: SeDebugPrivilege 4024 powershell.exe Token: SeDebugPrivilege 1784 powershell.exe Token: SeDebugPrivilege 1960 powershell.exe Token: SeSystemEnvironmentPrivilege 3216 csrss.exe Token: SeSecurityPrivilege 2400 sc.exe Token: SeSecurityPrivilege 2400 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4552 wrote to memory of 860 4552 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 81 PID 4552 wrote to memory of 860 4552 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 81 PID 4552 wrote to memory of 860 4552 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 81 PID 4688 wrote to memory of 1680 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 86 PID 4688 wrote to memory of 1680 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 86 PID 4688 wrote to memory of 1680 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 86 PID 4688 wrote to memory of 3044 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 88 PID 4688 wrote to memory of 3044 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 88 PID 3044 wrote to memory of 1088 3044 cmd.exe 90 PID 3044 wrote to memory of 1088 3044 cmd.exe 90 PID 4688 wrote to memory of 1388 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 91 PID 4688 wrote to memory of 1388 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 91 PID 4688 wrote to memory of 1388 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 91 PID 4688 wrote to memory of 952 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 93 PID 4688 wrote to memory of 952 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 93 PID 4688 wrote to memory of 952 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 93 PID 4688 wrote to memory of 3216 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 95 PID 4688 wrote to memory of 3216 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 95 PID 4688 wrote to memory of 3216 4688 fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe 95 PID 3216 wrote to memory of 4024 3216 csrss.exe 96 PID 3216 wrote to memory of 4024 3216 csrss.exe 96 PID 3216 wrote to memory of 4024 3216 csrss.exe 96 PID 3216 wrote to memory of 1784 3216 csrss.exe 102 PID 3216 wrote to memory of 1784 3216 csrss.exe 102 PID 3216 wrote to memory of 1784 3216 csrss.exe 102 PID 3216 wrote to memory of 1960 3216 csrss.exe 104 PID 3216 wrote to memory of 1960 3216 csrss.exe 104 PID 3216 wrote to memory of 1960 3216 csrss.exe 104 PID 3216 wrote to memory of 3424 3216 csrss.exe 106 PID 3216 wrote to memory of 3424 3216 csrss.exe 106 PID 2488 wrote to memory of 1256 2488 windefender.exe 112 PID 2488 wrote to memory of 1256 2488 windefender.exe 112 PID 2488 wrote to memory of 1256 2488 windefender.exe 112 PID 1256 wrote to memory of 2400 1256 cmd.exe 113 PID 1256 wrote to memory of 2400 1256 cmd.exe 113 PID 1256 wrote to memory of 2400 1256 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\fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe"C:\Users\Admin\AppData\Local\Temp\fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4552 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:860
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C:\Users\Admin\AppData\Local\Temp\fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.exe"C:\Users\Admin\AppData\Local\Temp\fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336.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:4688 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1680
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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:3044 -
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:1088
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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:1388
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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:952
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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:3216 -
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:4024
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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:4828
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3160
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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:1784
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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:1960
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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:3424
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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:2088
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2488 -
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:1256 -
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:2400
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:412
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
MD515db4618b715cbde3c64c6cce31beeb3
SHA12fcd9fd44cbb43df66d1f7966d262728417be604
SHA25662370d8837a0f2c473d0a8f1fda455efa2ea2927639b66f62afd066b29311cad
SHA512f23d584be707ab3080dc2b56f4912a0d5989f151ed21b29e534652167e5c38e871eb129c58dafe1c448af89fa56210d1390f97d605aae31573a31e2d18386287
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57077f5aa2984cf3e6b7ee2f7291010fd
SHA1aa797e846c3739c0a8dba7ad45da0e963c8f6daf
SHA256c64205b74215f638acf9562668c58f33ec95ce23cfbb8913c1b930ed454701b3
SHA51216d338bdc7f96ce39d9270b292c4d239fe492e46e1fa0dc97920f1827fc055038e4ee185facc345af34dad121593fd9890a346dfd5ac5cf7840e3439ebcbf6d9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD511604a0cd7916aef49d9adea150ca573
SHA1113a4dc4a84d84fa37c7c530ba7241e0fc43d023
SHA256e77e4ee24ceb7c777b46a9890ef6d85ac09e72388f6d37b1a871e58a6719c70a
SHA51250902d227590a646573d13de80f5db5feb45f12f55dd1fa6bff2fef4f02339e1cedbdec54898e04c04371c45a0accb345cc127c92e5a8b94fdcc1277daf4233d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fd9a3324f4a6cdc2745489b88f5ea53a
SHA1807f7427075a48042cc06915070b58725028b46d
SHA256fe46d2c3f8b0ba0713b2e25d982b24f1462cad1b0f2b7859a3aa8a2256a9a42d
SHA512ad382fc681e939cb138ea46dc27d4549e1da184dedb82b5a45974f9673dfc5da34c131a49ab1681520cc25915d8aa74eeb7166ed9ee30a2dc216d39cc0709276
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5106226c72bfdf0876d6a17e78a038b25
SHA1544ea0828035d2305cef8856bbc4cb0928d63db5
SHA256c316c9ad3b526c9979d43d195439e9ff2f0815d36182cfcc7fb1f0b95411a6c1
SHA51250b2af079170caa40fe1593e1f0d3cb0e40b16c9e8f7657337e8c526a43fca47432c04432eccdbcb0976470771e8d9ee740be9d27adf6e31777068acb05ca150
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Filesize
4.1MB
MD51d376613cf4eaa65ecfb1c8fc808cb56
SHA14145872c7772abd537e707d2217cd71010140bae
SHA256fb5c5eb64b94fc54f3d3dc7e4aa3b814c471088b16dd3a9c95a9a5b7a3619336
SHA512262d3c00e2f28c65b73814bb28787b8fd00461162edf58bb5a6d35dd0e91706becc0841898597b25d6985895cb1b1313581413517be00d5002e683c7a11ca88d
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec