Analysis
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max time kernel
150s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-05-2024 09:55
Static task
static1
Behavioral task
behavioral1
Sample
8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe
Resource
win10v2004-20240508-en
General
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Target
8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe
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Size
4.1MB
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MD5
5a674dad4f34f0655f3f552f3eeca3d0
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SHA1
c7ab98d205ac02f65901bc75ed10d3146078ee18
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SHA256
8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e
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SHA512
20b8f6d7230bab1f6c92f648380ed8895e4db9dd8fae742a18e29d719652ca7a03c81c17706eabd08ca54a7c22389a98a74902772824072c6949d3df8fa1ce1f
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SSDEEP
98304:UhY2qRRjR1paGoDMO/b2fpl9vUYBzPUd5cvaqxgKnFtiaj:qYlRLXY4O+pXvrLaqWucG
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/3472-2-0x0000000004C80000-0x000000000556B000-memory.dmp family_glupteba behavioral2/memory/3472-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3472-24-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3472-55-0x0000000004C80000-0x000000000556B000-memory.dmp family_glupteba behavioral2/memory/3472-53-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3472-77-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/680-73-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/680-129-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2608-205-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2608-216-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2608-218-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2608-221-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2608-224-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2608-228-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2608-230-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2608-233-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2608-236-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2608-240-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 644 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2608 csrss.exe 2840 injector.exe 3288 windefender.exe 1856 windefender.exe -
resource yara_rule behavioral2/files/0x001a00000002ab43-209.dat upx behavioral2/memory/3288-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1856-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3288-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1856-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1856-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.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.
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 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2972 sc.exe -
pid Process 5060 powershell.exe 2596 powershell.exe 3932 powershell.exe 2236 powershell.exe 2560 powershell.exe 4132 powershell.exe 1248 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 4460 schtasks.exe 396 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.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\2a\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-691 = "Tasmania Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.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,-2452 = "Saint Pierre Standard Time" windefender.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,-692 = "Tasmania 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,-2161 = "Altai Daylight Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.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\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.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\2a\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.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\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.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,-742 = "New Zealand Standard Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2560 powershell.exe 2560 powershell.exe 3472 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 3472 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 4132 powershell.exe 4132 powershell.exe 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 1248 powershell.exe 1248 powershell.exe 5060 powershell.exe 5060 powershell.exe 2596 powershell.exe 2596 powershell.exe 3932 powershell.exe 3932 powershell.exe 2236 powershell.exe 2236 powershell.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2608 csrss.exe 2608 csrss.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2608 csrss.exe 2608 csrss.exe 2840 injector.exe 2840 injector.exe 2608 csrss.exe 2608 csrss.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe 2840 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2560 powershell.exe Token: SeDebugPrivilege 3472 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Token: SeImpersonatePrivilege 3472 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe Token: SeDebugPrivilege 4132 powershell.exe Token: SeDebugPrivilege 1248 powershell.exe Token: SeDebugPrivilege 5060 powershell.exe Token: SeDebugPrivilege 2596 powershell.exe Token: SeDebugPrivilege 3932 powershell.exe Token: SeDebugPrivilege 2236 powershell.exe Token: SeSystemEnvironmentPrivilege 2608 csrss.exe Token: SeSecurityPrivilege 2972 sc.exe Token: SeSecurityPrivilege 2972 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3472 wrote to memory of 2560 3472 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 81 PID 3472 wrote to memory of 2560 3472 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 81 PID 3472 wrote to memory of 2560 3472 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 81 PID 680 wrote to memory of 4132 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 86 PID 680 wrote to memory of 4132 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 86 PID 680 wrote to memory of 4132 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 86 PID 680 wrote to memory of 4592 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 88 PID 680 wrote to memory of 4592 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 88 PID 4592 wrote to memory of 644 4592 cmd.exe 90 PID 4592 wrote to memory of 644 4592 cmd.exe 90 PID 680 wrote to memory of 1248 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 91 PID 680 wrote to memory of 1248 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 91 PID 680 wrote to memory of 1248 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 91 PID 680 wrote to memory of 5060 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 93 PID 680 wrote to memory of 5060 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 93 PID 680 wrote to memory of 5060 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 93 PID 680 wrote to memory of 2608 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 95 PID 680 wrote to memory of 2608 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 95 PID 680 wrote to memory of 2608 680 8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe 95 PID 2608 wrote to memory of 2596 2608 csrss.exe 96 PID 2608 wrote to memory of 2596 2608 csrss.exe 96 PID 2608 wrote to memory of 2596 2608 csrss.exe 96 PID 2608 wrote to memory of 3932 2608 csrss.exe 101 PID 2608 wrote to memory of 3932 2608 csrss.exe 101 PID 2608 wrote to memory of 3932 2608 csrss.exe 101 PID 2608 wrote to memory of 2236 2608 csrss.exe 104 PID 2608 wrote to memory of 2236 2608 csrss.exe 104 PID 2608 wrote to memory of 2236 2608 csrss.exe 104 PID 2608 wrote to memory of 2840 2608 csrss.exe 106 PID 2608 wrote to memory of 2840 2608 csrss.exe 106 PID 3288 wrote to memory of 2288 3288 windefender.exe 112 PID 3288 wrote to memory of 2288 3288 windefender.exe 112 PID 3288 wrote to memory of 2288 3288 windefender.exe 112 PID 2288 wrote to memory of 2972 2288 cmd.exe 113 PID 2288 wrote to memory of 2972 2288 cmd.exe 113 PID 2288 wrote to memory of 2972 2288 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\8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe"C:\Users\Admin\AppData\Local\Temp\8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3472 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2560
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C:\Users\Admin\AppData\Local\Temp\8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.exe"C:\Users\Admin\AppData\Local\Temp\8139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e.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:680 -
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:4132
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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:4592 -
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:644
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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:1248
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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:5060
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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:2608 -
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:2596
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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:4460
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1920
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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:3932
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2236
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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:2840
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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:396
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3288 -
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:2288 -
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:2972
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1856
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
MD53f8ada01d7e00504bcbb5883c04ebf1d
SHA15161ef93af1a3404586b46bdb4c6af364c1dfeca
SHA256c6796d951bb02a72b06c7c19a021d7b3655e8266d73b2fb4ffbbe3fa48f3c2e1
SHA512fbecff88ca8d23e19280f2c1661147dfaaabf06d95102fe3fd02cc8d0bd677b18ff91731ffcf351c7b5442353cf838e9634ae6034107789b85c439b5f2ef2a8c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5aad91554e70a0c8c9300e2fb056856fd
SHA1fdac4244758652fc27927a1591c0061acff2c6bc
SHA256d99b4fc7e60b58005ce83630498774f982d1f7196bfeeaa3ae1b809059b657af
SHA512704e106aa374bc88e2c3f05a3fee7f27b0f8620b3e44aa085c31151ee3bcb6c898a30e1934052b1e28585157650beaa722880d4c7a4163a3d75f159900351b7a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD504b551f0e82a63e546cc6aa7a949a6ea
SHA1c0a405cd6b7341e3b3d63766ca59d89c274f5bb1
SHA25698e58e9005cb213a9716b9c17aa9c88ebc03f41c82a7e6d09e46da3a9e4b54aa
SHA5126ef9d0512ed12edcc01756229e7fd7153a870922614f3cbc15d91872cd519cdac6fd6abf930c33fe8648e954ebc33b9eee9decdc955175ab672ab075452310e9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50656e84fd73beb1349069cf77447b00c
SHA1b5c1453b8d5b8f541e544c2da59ced92e8a837cc
SHA2564486173baded63d9fefd16b416f3b344444292d0d5f8ed24c24e13bfd4754661
SHA512f4258e637404e628c25927c7a1c17083bbe46e578e7db1e3233577fd450ef8883e9e0ec6f72748e5dedcd6c343bde64011a1df770f92b0a8234fbec8fb4afedd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c93b72f9b80b909a3df9862acaef7a71
SHA1c22724051e32221079d6cc647ebd73c4bc38c962
SHA256a04166db6762d322b6c9cc7c16fc0e2e95e4d04f4ad0adebe747f04e7ccbdd3f
SHA512f8c84546df576b88e33652bd705f747749df957840aca9211335161e7ac838c47d6d97caa5f6365108b02aafb0efd2f7e2e8574c4816b6d7431382671ee80506
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Filesize
4.1MB
MD55a674dad4f34f0655f3f552f3eeca3d0
SHA1c7ab98d205ac02f65901bc75ed10d3146078ee18
SHA2568139bbb77f31c06c640019c849c3a13a3c5857c94286d0f36e6de0e4754a495e
SHA51220b8f6d7230bab1f6c92f648380ed8895e4db9dd8fae742a18e29d719652ca7a03c81c17706eabd08ca54a7c22389a98a74902772824072c6949d3df8fa1ce1f
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec