Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
19/04/2024, 16:06
Static task
static1
Behavioral task
behavioral1
Sample
6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe
Resource
win10v2004-20240412-en
General
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Target
6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe
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Size
4.2MB
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MD5
85bc2f079b47f406d74c485dd68f9110
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SHA1
8184fa10ef42d63726089807493174b521caec10
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SHA256
6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca
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SHA512
ab4b8acbbe8d4564df8ce0bc0aa98bd467cd419099d1c3f6579927118d2bd3df02bad0378d09f0151d40349527ed16206f85f9eeafa6224e549728aca24d77b1
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SSDEEP
98304:noZCtMNcIJm/Wi5iI7vKblq/qDx6472PxO1xv/KiJe7:n3OuIEug7vwUGt7S+nKx
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/3176-2-0x0000000004040000-0x000000000492B000-memory.dmp family_glupteba behavioral2/memory/3176-3-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1032-54-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/3176-65-0x0000000004040000-0x000000000492B000-memory.dmp family_glupteba behavioral2/memory/3176-79-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1032-137-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1032-206-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4612-239-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4612-250-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4612-254-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4612-258-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4612-262-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4612-266-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4612-270-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4612-274-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4612-278-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4612-282-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4612-286-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4612-290-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4612-294-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2008 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4612 csrss.exe 4272 injector.exe 2004 windefender.exe 4584 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9b4-244.dat upx behavioral2/memory/2004-248-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4584-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4584-260-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe File created C:\Windows\rss\csrss.exe 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.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 2644 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 4968 schtasks.exe 1764 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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\26\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-261 = "GMT Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-302 = "Romance Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\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\26\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-691 = "Tasmania Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.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\26\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs 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\26\52C64B7E\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2571 = "Turks and Caicos Daylight Time" windefender.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\26\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2984 powershell.exe 2984 powershell.exe 3176 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 3176 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 2136 powershell.exe 2136 powershell.exe 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 2760 powershell.exe 2760 powershell.exe 2728 powershell.exe 2728 powershell.exe 3068 powershell.exe 3068 powershell.exe 4884 powershell.exe 4884 powershell.exe 4552 powershell.exe 4552 powershell.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4612 csrss.exe 4612 csrss.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4612 csrss.exe 4612 csrss.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4612 csrss.exe 4612 csrss.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe 4272 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2984 powershell.exe Token: SeDebugPrivilege 3176 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Token: SeImpersonatePrivilege 3176 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe Token: SeDebugPrivilege 2136 powershell.exe Token: SeDebugPrivilege 2760 powershell.exe Token: SeDebugPrivilege 2728 powershell.exe Token: SeDebugPrivilege 3068 powershell.exe Token: SeDebugPrivilege 4884 powershell.exe Token: SeDebugPrivilege 4552 powershell.exe Token: SeSystemEnvironmentPrivilege 4612 csrss.exe Token: SeSecurityPrivilege 2644 sc.exe Token: SeSecurityPrivilege 2644 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3176 wrote to memory of 2984 3176 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 82 PID 3176 wrote to memory of 2984 3176 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 82 PID 3176 wrote to memory of 2984 3176 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 82 PID 1032 wrote to memory of 2136 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 88 PID 1032 wrote to memory of 2136 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 88 PID 1032 wrote to memory of 2136 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 88 PID 1032 wrote to memory of 4272 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 108 PID 1032 wrote to memory of 4272 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 108 PID 4272 wrote to memory of 2008 4272 cmd.exe 92 PID 4272 wrote to memory of 2008 4272 cmd.exe 92 PID 1032 wrote to memory of 2760 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 93 PID 1032 wrote to memory of 2760 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 93 PID 1032 wrote to memory of 2760 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 93 PID 1032 wrote to memory of 2728 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 95 PID 1032 wrote to memory of 2728 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 95 PID 1032 wrote to memory of 2728 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 95 PID 1032 wrote to memory of 4612 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 97 PID 1032 wrote to memory of 4612 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 97 PID 1032 wrote to memory of 4612 1032 6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe 97 PID 4612 wrote to memory of 3068 4612 csrss.exe 98 PID 4612 wrote to memory of 3068 4612 csrss.exe 98 PID 4612 wrote to memory of 3068 4612 csrss.exe 98 PID 4612 wrote to memory of 4884 4612 csrss.exe 104 PID 4612 wrote to memory of 4884 4612 csrss.exe 104 PID 4612 wrote to memory of 4884 4612 csrss.exe 104 PID 4612 wrote to memory of 4552 4612 csrss.exe 106 PID 4612 wrote to memory of 4552 4612 csrss.exe 106 PID 4612 wrote to memory of 4552 4612 csrss.exe 106 PID 4612 wrote to memory of 4272 4612 csrss.exe 108 PID 4612 wrote to memory of 4272 4612 csrss.exe 108 PID 2004 wrote to memory of 1552 2004 windefender.exe 114 PID 2004 wrote to memory of 1552 2004 windefender.exe 114 PID 2004 wrote to memory of 1552 2004 windefender.exe 114 PID 1552 wrote to memory of 2644 1552 cmd.exe 115 PID 1552 wrote to memory of 2644 1552 cmd.exe 115 PID 1552 wrote to memory of 2644 1552 cmd.exe 115 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe"C:\Users\Admin\AppData\Local\Temp\6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3176 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2984
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C:\Users\Admin\AppData\Local\Temp\6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.exe"C:\Users\Admin\AppData\Local\Temp\6aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca.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:1032 -
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:2136
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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:4272 -
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:2008
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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:2760
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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:2728
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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:4612 -
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:3068
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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:4968
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:792
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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:4884
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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:4552
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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:4272
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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:1764
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2004 -
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:1552 -
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:2644
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4584
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a91ef50b88d3c7dd689d6435f8322b11
SHA159e1e900589aa94c1ee963ade8a449f819ac87e1
SHA25647ac76a0c88468246e03c0472bfd9f5c779e8197678b919af7ff1c41c67fb0a9
SHA512ceb7eb4f52158daabbe65f76c8bb800cbf9af8821df9982fc287ced07502a70e88408edb06f411f32bcae07b33145cde080c43a32469b700f71c049f40c9dd02
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f72855e5576b751c67f5ebbc077b9053
SHA16a9b19e1bf1dcaa69d9d99658cf2e885a51cc504
SHA25625693f7436408183a2f345ec9d016ea890f6efba47a8d79e27426fe0951eff0a
SHA512fdb7ea39c4e8b7eb581510d2af31f37c5341579218f090ceff91b8efef876ada9c00bfbab177a305bf8704a8063dced8cbcfc935eb60f6beab24c6c298079886
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c307aabd5b10c710993495974b522d4e
SHA11fbaaf08ef5f819a8a24fb8ecd72b87eaf44ac1b
SHA25678062808648b657b0fbb3d7ba135cb6b5042bf02af0e76c3edb35098e371dd39
SHA51216a3419ee961b34d92ed89593e15c6aea4f01ad2b9683f5c1df62f220be45a827023f8081cfeceb63024c8ad698047f20935c9802cccf5518016ce7eeabd1513
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54d96952174535c8e9810f228d970481f
SHA1ad167bf0bfa4f673939e0c0a835c10b0a1483e7e
SHA2566a92e3cb614474ae024f07342da294002814f93a38b59db0c7e3912576bd0017
SHA512cdc6b50154d58a8103299e661779292ddd0e864f22fb477ee69cb25702bd5d56a73191b91d766610fc34e1d5dab27c1768c0f3edf0f4e460c286f04e06dd70b9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5977ec9c09bfb3b9477ad38d4aa2e7895
SHA12ca1703049044330f0a7b70635915f242ade3f0c
SHA256a4b3f1dde5aa1b63e867c19fddedadab503a1314d388ec0696ece2dc322d74f4
SHA5129202b9512a788162fa23cb28a731ce1c4825c80a016bb7c03c50bb2d79cd07afc456a81ffe4789f1d094181213138ef803d60cee7efab91d62fd6fa82bb14e14
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Filesize
4.2MB
MD585bc2f079b47f406d74c485dd68f9110
SHA18184fa10ef42d63726089807493174b521caec10
SHA2566aa68399ff3bbc800cd474330a4830c7aa03d9295c33fe1b05b2c1b17322f1ca
SHA512ab4b8acbbe8d4564df8ce0bc0aa98bd467cd419099d1c3f6579927118d2bd3df02bad0378d09f0151d40349527ed16206f85f9eeafa6224e549728aca24d77b1
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec