Analysis
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max time kernel
149s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-05-2024 13:24
Static task
static1
Behavioral task
behavioral1
Sample
04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe
Resource
win10v2004-20240426-en
General
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Target
04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe
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Size
4.1MB
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MD5
38989c9d938dd8be683d4ab11f1cda25
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SHA1
081a6ba84933c8a544556ed2e6098693439f3386
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SHA256
04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7
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SHA512
e54564fb34014a5cd96fcde64c68161efa8c3790636550c0a0977645ea0b7bc4addb069227b8d18f709f2ca03956cd6071fbd32935015f108f7b08fb0618b200
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SSDEEP
98304:sQJMl/iXMhTmfDhNRe9xfYVEx7xkD10HZd3scl3XzHAtmo0FM:nb8hTmbBIxHPR3rn3oKM
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1532-2-0x0000000004DB0000-0x000000000569B000-memory.dmp family_glupteba behavioral2/memory/1532-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1532-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1532-54-0x0000000004DB0000-0x000000000569B000-memory.dmp family_glupteba behavioral2/memory/1532-52-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3804-80-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3804-128-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1872-152-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1872-206-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1872-216-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1872-218-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1872-220-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1872-222-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1872-224-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1872-226-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1872-228-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1872-230-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1872-232-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1872-234-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4688 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1872 csrss.exe 1952 injector.exe 2756 windefender.exe 1572 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9d0-209.dat upx behavioral2/memory/2756-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1572-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2756-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1572-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1572-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Set value (str) \REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\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 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe File created C:\Windows\rss\csrss.exe 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.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 4360 sc.exe -
pid Process 3268 powershell.exe 2672 powershell.exe 1956 powershell.exe 5112 powershell.exe 3832 powershell.exe 4936 powershell.exe 2324 powershell.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 1628 1532 WerFault.exe 77 3044 3804 WerFault.exe 83 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3032 schtasks.exe 2596 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.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\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates 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\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.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" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.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,-381 = "South Africa Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA 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\@tzres.dll,-151 = "Central America 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\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA 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,-1971 = "Belarus Daylight Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.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\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-172 = "Central Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4936 powershell.exe 4936 powershell.exe 1532 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 1532 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 2324 powershell.exe 2324 powershell.exe 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 3268 powershell.exe 3268 powershell.exe 2672 powershell.exe 2672 powershell.exe 1956 powershell.exe 1956 powershell.exe 5112 powershell.exe 5112 powershell.exe 3832 powershell.exe 3832 powershell.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1872 csrss.exe 1872 csrss.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1872 csrss.exe 1872 csrss.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1872 csrss.exe 1872 csrss.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe 1952 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4936 powershell.exe Token: SeDebugPrivilege 1532 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Token: SeImpersonatePrivilege 1532 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe Token: SeDebugPrivilege 2324 powershell.exe Token: SeDebugPrivilege 3268 powershell.exe Token: SeDebugPrivilege 2672 powershell.exe Token: SeDebugPrivilege 1956 powershell.exe Token: SeDebugPrivilege 5112 powershell.exe Token: SeDebugPrivilege 3832 powershell.exe Token: SeSystemEnvironmentPrivilege 1872 csrss.exe Token: SeSecurityPrivilege 4360 sc.exe Token: SeSecurityPrivilege 4360 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1532 wrote to memory of 4936 1532 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 79 PID 1532 wrote to memory of 4936 1532 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 79 PID 1532 wrote to memory of 4936 1532 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 79 PID 3804 wrote to memory of 2324 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 87 PID 3804 wrote to memory of 2324 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 87 PID 3804 wrote to memory of 2324 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 87 PID 3804 wrote to memory of 1160 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 89 PID 3804 wrote to memory of 1160 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 89 PID 1160 wrote to memory of 4688 1160 cmd.exe 91 PID 1160 wrote to memory of 4688 1160 cmd.exe 91 PID 3804 wrote to memory of 3268 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 92 PID 3804 wrote to memory of 3268 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 92 PID 3804 wrote to memory of 3268 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 92 PID 3804 wrote to memory of 2672 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 94 PID 3804 wrote to memory of 2672 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 94 PID 3804 wrote to memory of 2672 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 94 PID 3804 wrote to memory of 1872 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 96 PID 3804 wrote to memory of 1872 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 96 PID 3804 wrote to memory of 1872 3804 04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe 96 PID 1872 wrote to memory of 1956 1872 csrss.exe 99 PID 1872 wrote to memory of 1956 1872 csrss.exe 99 PID 1872 wrote to memory of 1956 1872 csrss.exe 99 PID 1872 wrote to memory of 5112 1872 csrss.exe 105 PID 1872 wrote to memory of 5112 1872 csrss.exe 105 PID 1872 wrote to memory of 5112 1872 csrss.exe 105 PID 1872 wrote to memory of 3832 1872 csrss.exe 107 PID 1872 wrote to memory of 3832 1872 csrss.exe 107 PID 1872 wrote to memory of 3832 1872 csrss.exe 107 PID 1872 wrote to memory of 1952 1872 csrss.exe 109 PID 1872 wrote to memory of 1952 1872 csrss.exe 109 PID 2756 wrote to memory of 4788 2756 windefender.exe 115 PID 2756 wrote to memory of 4788 2756 windefender.exe 115 PID 2756 wrote to memory of 4788 2756 windefender.exe 115 PID 4788 wrote to memory of 4360 4788 cmd.exe 116 PID 4788 wrote to memory of 4360 4788 cmd.exe 116 PID 4788 wrote to memory of 4360 4788 cmd.exe 116 -
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\04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe"C:\Users\Admin\AppData\Local\Temp\04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1532 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4936
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C:\Users\Admin\AppData\Local\Temp\04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.exe"C:\Users\Admin\AppData\Local\Temp\04a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7.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:3804 -
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:2324
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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:1160 -
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:4688
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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:3268
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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:2672
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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:1872 -
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:1956
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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:3032
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2024
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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:5112
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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:3832
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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:1952
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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:2596
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2756 -
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:4788 -
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:4360
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3804 -s 7683⤵
- Program crash
PID:3044
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1532 -s 7522⤵
- Program crash
PID:1628
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1532 -ip 15321⤵PID:5028
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3804 -ip 38041⤵PID:4728
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1572
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
MD536426c75451ec349acdd2159b83d22a2
SHA1878eec381f4633c0feba2457099aee94b0935177
SHA25681f44135fc6d5ea57d3fc27a4c2e2ae3d9fb395f29e5835726e5b4ecb8683f2c
SHA512fb97b222897c2be5cf5be8d47e96cb2e91a0f4222351c7a12da9897f28f8d7835b8fda61f2233191341c37586c5f2f81cbf2a9636c4a2398b93ef641a8b124cf
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD506a0a61793c338fc061651000f64d055
SHA196eecc8811b49a3b873e96817a3a6906ec543d65
SHA25657caf29f4b99c4abe69932e064761d5c07dc91d6e74def80162b3ae0d36cef77
SHA51254b0237fe636b72cb3d40da0d16052866f893deab5d4d5889ebf463f49e76009db9f0007c61fec4e7b0d3910bb1521f67ecfcba53b885450ec0e5ac621d9647a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f8d9470ab204c64f8fea3d961783a76c
SHA1947b9f37984d5d59285c2fe8f20b705631adf3bb
SHA256b4263244f3b365852c77c96d214d113472992064b4312c405180f71c12bb0fc1
SHA512528c516b06fd8d8b3dcb6a81a9d733af4d0a1428f0ec49471e5c1d1165300b54924541fa6d2412ab4afc87fdcebefd0b8c72e2a9fb66b5f6e8a119ed2cb09a01
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5501d0bf33690e0a469da6bd91f2516fe
SHA12b93d2ffe9afd686a7edd950c15a27c252fc4dcd
SHA256b71e2fc3b6d10d0663681e6a344571b01b3dc8ac3546925ce8aae45193f81b0f
SHA5122de45440bb73807ffbec123e84e2561824ef0da0d1473e869457e999f602a8a056a5bbaa9b1c3ef5ad4bb33472d51f2fca52b0d042edd29d878e51d785926982
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD539e0754df4abee64ac2dfe33f5ba6261
SHA16a86bac7179fb94cd270750d793354f68c1c0e6a
SHA2566b0b83789978b2465eaab29346a5e22c1f6f57ec892207e997906bead2a259dc
SHA5123922027ab036564dd77598150397ee5615536c6225c69374ed4b410c2d107b1f408a68f95df6026be8a476f5be303319777914c5955efb85d20465c93f5a097e
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Filesize
4.1MB
MD538989c9d938dd8be683d4ab11f1cda25
SHA1081a6ba84933c8a544556ed2e6098693439f3386
SHA25604a6fdf28550311c1486c787ca593d1bc63db2598d6d4dfbf0b72857d15ac8a7
SHA512e54564fb34014a5cd96fcde64c68161efa8c3790636550c0a0977645ea0b7bc4addb069227b8d18f709f2ca03956cd6071fbd32935015f108f7b08fb0618b200
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec