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Analysis
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max time kernel
150s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
30/04/2024, 12:53
Static task
static1
Behavioral task
behavioral1
Sample
55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe
Resource
win10v2004-20240419-en
General
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Target
55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe
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Size
4.1MB
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MD5
2ef773faaded4cb6c8a7ebb7038a9dd5
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SHA1
c4a25a40b999bce820748fb946c6441d0d14063f
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SHA256
55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8
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SHA512
68965d9a2db2b424f9235e3122d88cb66880353e7fd020c6d1b0300c3f4e7497851c5904a8036c97efa9689774f729e3f519e2b82ba41f1146a64505a9edea69
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SSDEEP
98304:NGYvCLt5aQiAK2wyGz1OLfGENz3JpGXVr8u4xDOwX:sYqL+Qi5Tz1CfhXyt8u4hzX
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/3932-2-0x0000000003F00000-0x00000000047EB000-memory.dmp family_glupteba behavioral2/memory/3932-3-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/3932-55-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/3932-56-0x0000000003F00000-0x00000000047EB000-memory.dmp family_glupteba behavioral2/memory/1876-128-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2988-204-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2988-214-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2988-215-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2988-217-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2988-219-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2988-221-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2988-223-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2988-225-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2988-227-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2988-230-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2988-231-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2988-233-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral2/memory/2988-235-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2144 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2988 csrss.exe 4448 injector.exe 4860 windefender.exe 4708 windefender.exe -
resource yara_rule behavioral2/files/0x001a00000002ab84-207.dat upx behavioral2/memory/4860-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4708-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4860-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4708-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4708-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-734199974-1358367239-436541239-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\S-1-5-21-734199974-1358367239-436541239-1000\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 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe File created C:\Windows\rss\csrss.exe 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.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 4168 sc.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 4436 3932 WerFault.exe 79 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 5028 schtasks.exe 4000 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process 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,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-11 = "Azores Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\2a\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates 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,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-441 = "Arabian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.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,-231 = "Hawaiian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.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,-2322 = "Sakhalin Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust 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,-2772 = "Omsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3916 powershell.exe 3916 powershell.exe 3932 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 3932 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 4448 powershell.exe 4448 powershell.exe 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 2508 powershell.exe 2508 powershell.exe 4640 powershell.exe 4640 powershell.exe 3400 powershell.exe 3400 powershell.exe 2600 powershell.exe 2600 powershell.exe 4672 powershell.exe 4672 powershell.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 2988 csrss.exe 2988 csrss.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 2988 csrss.exe 2988 csrss.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 2988 csrss.exe 2988 csrss.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe 4448 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3916 powershell.exe Token: SeDebugPrivilege 3932 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Token: SeImpersonatePrivilege 3932 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Token: SeDebugPrivilege 4448 powershell.exe Token: SeDebugPrivilege 2508 powershell.exe Token: SeDebugPrivilege 4640 powershell.exe Token: SeDebugPrivilege 3400 powershell.exe Token: SeDebugPrivilege 2600 powershell.exe Token: SeDebugPrivilege 4672 powershell.exe Token: SeSystemEnvironmentPrivilege 2988 csrss.exe Token: SeSecurityPrivilege 4168 sc.exe Token: SeSecurityPrivilege 4168 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3932 wrote to memory of 3916 3932 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 82 PID 3932 wrote to memory of 3916 3932 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 82 PID 3932 wrote to memory of 3916 3932 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 82 PID 1876 wrote to memory of 4448 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 90 PID 1876 wrote to memory of 4448 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 90 PID 1876 wrote to memory of 4448 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 90 PID 1876 wrote to memory of 4108 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 92 PID 1876 wrote to memory of 4108 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 92 PID 4108 wrote to memory of 2144 4108 cmd.exe 94 PID 4108 wrote to memory of 2144 4108 cmd.exe 94 PID 1876 wrote to memory of 2508 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 95 PID 1876 wrote to memory of 2508 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 95 PID 1876 wrote to memory of 2508 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 95 PID 1876 wrote to memory of 4640 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 97 PID 1876 wrote to memory of 4640 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 97 PID 1876 wrote to memory of 4640 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 97 PID 1876 wrote to memory of 2988 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 99 PID 1876 wrote to memory of 2988 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 99 PID 1876 wrote to memory of 2988 1876 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 99 PID 2988 wrote to memory of 3400 2988 csrss.exe 100 PID 2988 wrote to memory of 3400 2988 csrss.exe 100 PID 2988 wrote to memory of 3400 2988 csrss.exe 100 PID 2988 wrote to memory of 2600 2988 csrss.exe 106 PID 2988 wrote to memory of 2600 2988 csrss.exe 106 PID 2988 wrote to memory of 2600 2988 csrss.exe 106 PID 2988 wrote to memory of 4672 2988 csrss.exe 108 PID 2988 wrote to memory of 4672 2988 csrss.exe 108 PID 2988 wrote to memory of 4672 2988 csrss.exe 108 PID 2988 wrote to memory of 4448 2988 csrss.exe 110 PID 2988 wrote to memory of 4448 2988 csrss.exe 110 PID 4860 wrote to memory of 404 4860 windefender.exe 116 PID 4860 wrote to memory of 404 4860 windefender.exe 116 PID 4860 wrote to memory of 404 4860 windefender.exe 116 PID 404 wrote to memory of 4168 404 cmd.exe 117 PID 404 wrote to memory of 4168 404 cmd.exe 117 PID 404 wrote to memory of 4168 404 cmd.exe 117 -
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\55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe"C:\Users\Admin\AppData\Local\Temp\55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3932 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3916
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C:\Users\Admin\AppData\Local\Temp\55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe"C:\Users\Admin\AppData\Local\Temp\55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.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:1876 -
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:4448
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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:4108 -
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:2144
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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:2508
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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:4640
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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:2988 -
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:3400
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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:5028
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4616
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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:2600
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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:4672
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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:4448
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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:4000
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4860 -
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:404 -
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:4168
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3932 -s 8682⤵
- Program crash
PID:4436
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3932 -ip 39321⤵PID:3928
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4708
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
MD5d77aa9d1418ee7a14e85fc7ea609d2dc
SHA125e14f58d55936e5a0d2dae890d9b99c1e3957c1
SHA25616ca7fec13462d36706bb7fdc3233f2679a6593cf1e76f3e4c256ca38ea52dc3
SHA512736c4f9dce337cd742ef1a674f59852b7dbe414ec17cf466ecd574dc3f6868576551f807676c782c12992d8e51716119b5093d64d299ba7d8ebf7c4d13ca7b90
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ef8a9e6671d318a5f1397fa85c66e28f
SHA12896100ae457d9b42318665c47e9521cf97c71a7
SHA2567fb8f28f5c6f9f4d1b49978b3f0061808a4e5a584289931da8a3903b3163fe41
SHA5122321a92173e8354327e06dfab06016b2b2386a4552caba6a156dc2123d8e5d0fdd3d0089a447bdf0e4e5dbb4da4494279019ea1c84476a49286d52f0c8080a2e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c59e82fffb13cd302d8a3f6e4e3897d4
SHA12954ffa0fa52be5b9207721337465bc9c56c8bc2
SHA256b39913000475d23650f1095510e54cd531e16784864eea8dd957be5d7c4f6353
SHA512a69fe0f6986f1844d6111890163e52c6d653b6b207f401b7563bd42ee84c2c429b4425646f853749a951f96eaeef8bb409415725492d72d616bb4c51a3f060de
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD506d0d293d93e386ed7e232e04cb71122
SHA19093cca044da18515cbd01398448ce7fac88a996
SHA256b46643621c850659ea19cb06759288c47faedb3582cce1f75a85599771f401ae
SHA5121cdb07fb93430c3777ebc0400e19ced6e16cfaafe8bc3ec498c55241745b86a15c74da3360049e7397fe0b65fd2bb98c424be79bf6bd8e135a148d1683a01007
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d1b5164a818f682ca24f150a3df92858
SHA166a1dc450535bd0e61416069f26b8a55beec10de
SHA2561088a30f4eee19ee48897aad6c97c98562c71a6e5e32b6580f6328bd5b1b17fb
SHA5124dad7f31f19bde3b4e1fcd3c8a749d6593c6ac89cab609944ca807b4c7b1351a43ddfa483c6e7ce2c4e240a5a3b2e66925c54e416e7b56442f00b7709bfdf38d
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Filesize
4.1MB
MD52ef773faaded4cb6c8a7ebb7038a9dd5
SHA1c4a25a40b999bce820748fb946c6441d0d14063f
SHA25655d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8
SHA51268965d9a2db2b424f9235e3122d88cb66880353e7fd020c6d1b0300c3f4e7497851c5904a8036c97efa9689774f729e3f519e2b82ba41f1146a64505a9edea69
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec