Analysis
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max time kernel
149s -
max time network
145s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
15/05/2024, 19:22
Static task
static1
Behavioral task
behavioral1
Sample
45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe
Resource
win10v2004-20240508-en
General
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Target
45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe
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Size
4.1MB
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MD5
e285774ca0642cd61c42dfffd04ed622
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SHA1
87a9760f8f962ba675a5fe77ec70d3d1409619e1
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SHA256
45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c
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SHA512
0f0a5f76ab39aebf688b3cd9b9c7e2abc5b4a1db64f906b0a9295b3d9410a18574b1da628a4695d4c74c2a37a70c740bc818a8e4b2de474d271233edfbab5132
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SSDEEP
98304:XvKhyQu49tHH7DRYDff1lXFitQcJyMhd8Y13:Xv8u49ZH7eDfxu9yMsE3
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/412-2-0x0000000004CB0000-0x000000000559B000-memory.dmp family_glupteba behavioral2/memory/412-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/412-24-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/412-55-0x0000000004CB0000-0x000000000559B000-memory.dmp family_glupteba behavioral2/memory/412-54-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/412-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4500-66-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4500-125-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/4500-131-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3188-200-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3188-208-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3188-219-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3188-222-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3188-225-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3188-228-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3188-231-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3188-234-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba behavioral2/memory/3188-237-0x0000000000400000-0x0000000002B0B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1048 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3188 csrss.exe 3368 injector.exe 3116 windefender.exe 4576 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa5e-211.dat upx behavioral2/memory/3116-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4576-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3116-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4576-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4576-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe File created C:\Windows\rss\csrss.exe 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.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 1840 sc.exe -
pid Process 4372 powershell.exe 3580 powershell.exe 4944 powershell.exe 1424 powershell.exe 1696 powershell.exe 2164 powershell.exe 2276 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3816 schtasks.exe 1136 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.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" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 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,-1831 = "Russia TZ 2 Daylight Time" windefender.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,-448 = "Azerbaijan Daylight Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.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\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\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,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.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\@tzres.dll,-751 = "Tonga Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs 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,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.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" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.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,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-52 = "Greenland Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4372 powershell.exe 4372 powershell.exe 412 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 412 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 3580 powershell.exe 3580 powershell.exe 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 4944 powershell.exe 4944 powershell.exe 1424 powershell.exe 1424 powershell.exe 1696 powershell.exe 1696 powershell.exe 2164 powershell.exe 2164 powershell.exe 2276 powershell.exe 2276 powershell.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3188 csrss.exe 3188 csrss.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3188 csrss.exe 3188 csrss.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3188 csrss.exe 3188 csrss.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe 3368 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4372 powershell.exe Token: SeDebugPrivilege 412 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Token: SeImpersonatePrivilege 412 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe Token: SeDebugPrivilege 3580 powershell.exe Token: SeDebugPrivilege 4944 powershell.exe Token: SeDebugPrivilege 1424 powershell.exe Token: SeDebugPrivilege 1696 powershell.exe Token: SeDebugPrivilege 2164 powershell.exe Token: SeDebugPrivilege 2276 powershell.exe Token: SeSystemEnvironmentPrivilege 3188 csrss.exe Token: SeSecurityPrivilege 1840 sc.exe Token: SeSecurityPrivilege 1840 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 412 wrote to memory of 4372 412 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 82 PID 412 wrote to memory of 4372 412 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 82 PID 412 wrote to memory of 4372 412 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 82 PID 4500 wrote to memory of 3580 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 87 PID 4500 wrote to memory of 3580 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 87 PID 4500 wrote to memory of 3580 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 87 PID 4500 wrote to memory of 4156 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 89 PID 4500 wrote to memory of 4156 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 89 PID 4156 wrote to memory of 1048 4156 cmd.exe 91 PID 4156 wrote to memory of 1048 4156 cmd.exe 91 PID 4500 wrote to memory of 4944 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 92 PID 4500 wrote to memory of 4944 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 92 PID 4500 wrote to memory of 4944 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 92 PID 4500 wrote to memory of 1424 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 94 PID 4500 wrote to memory of 1424 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 94 PID 4500 wrote to memory of 1424 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 94 PID 4500 wrote to memory of 3188 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 96 PID 4500 wrote to memory of 3188 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 96 PID 4500 wrote to memory of 3188 4500 45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe 96 PID 3188 wrote to memory of 1696 3188 csrss.exe 97 PID 3188 wrote to memory of 1696 3188 csrss.exe 97 PID 3188 wrote to memory of 1696 3188 csrss.exe 97 PID 3188 wrote to memory of 2164 3188 csrss.exe 102 PID 3188 wrote to memory of 2164 3188 csrss.exe 102 PID 3188 wrote to memory of 2164 3188 csrss.exe 102 PID 3188 wrote to memory of 2276 3188 csrss.exe 105 PID 3188 wrote to memory of 2276 3188 csrss.exe 105 PID 3188 wrote to memory of 2276 3188 csrss.exe 105 PID 3188 wrote to memory of 3368 3188 csrss.exe 107 PID 3188 wrote to memory of 3368 3188 csrss.exe 107 PID 3116 wrote to memory of 3892 3116 windefender.exe 113 PID 3116 wrote to memory of 3892 3116 windefender.exe 113 PID 3116 wrote to memory of 3892 3116 windefender.exe 113 PID 3892 wrote to memory of 1840 3892 cmd.exe 114 PID 3892 wrote to memory of 1840 3892 cmd.exe 114 PID 3892 wrote to memory of 1840 3892 cmd.exe 114 -
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\45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe"C:\Users\Admin\AppData\Local\Temp\45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:412 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4372
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C:\Users\Admin\AppData\Local\Temp\45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.exe"C:\Users\Admin\AppData\Local\Temp\45fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c.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:4500 -
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:3580
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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:4156 -
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:1048
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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:4944
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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:1424
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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:3188 -
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:1696
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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:3816
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1544
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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:2164
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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:2276
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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:3368
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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:1136
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3116 -
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:3892 -
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:1840
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4576
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
MD54546bfaf8d0b41fe8c039e3189e45b89
SHA1352f707a9eef460c137bdcfca498c731339342ce
SHA256944f45c8f83b24618c28191a1fea3aa7a0b1c832222a138d78e065eaaea726a1
SHA512b248f597beeab925155bcb254f45c3ebeb70faae425a3b8cc1b105bd91690c9faf8eb55bef2eae38f72ba64d479472a9e52e0b0acf5bb8ec98987321125b144f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56aef1ca3297456d7446273c7c4615d54
SHA1c9f1ac1951bc574c6c3d115e877177edee024f42
SHA25605764bbff43e838e6446fea94f0e2f64d3e52b33396df0f3b9ed57234ba6e777
SHA512efe1482cd3731a22b548bb43ed85b508f1babcee7c54b59c744b412b858ecce81ab76267eee353d92a3ae14900f716a48a5c3cd12bc6907579c303d97ef38beb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b8f8a28f29e651ae1073ce1450d7a450
SHA161e59e45bf19e35ab1bd54ba45374e3fbded1e73
SHA2561a1d38179ee7d2183530d452e23f33a17c65de3f3d4e19f64bf22f661a7c4a76
SHA512e05d2ee19308258cac6161c398a44c4a00f4289bae64b06ec3f6d87dc0e5867a9b8ce01472a5fd2f4d3eead996f924503a48a50d6b746dce19159af9e4e0d14d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50af729fa813acf5ec3575f39325f0040
SHA1690af4aa991290eae55af0bbeff431e615dad54a
SHA256eb0afcf69c5bb0a04b426d8017796d6d1bfc10f3f8efecb35f867b0ac27131f3
SHA512055b59e29800b63991beb668312660c02ed41873d57e9be86aa6cc6c06170c85b55d13fcff0043294b314b595a9e416518ab0a2953b021b891a2649ac58b1dbb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD514a50b5601b491a916d17a1f78bd808b
SHA1649d75eac252778cd9b2dabc9fc20e00acd96eaf
SHA25607c04325c68a24b0b37fffb467e432c21f296fe17e1cbb09a423b6a9af9c93d4
SHA512102c5ac5fef9e98aeb9652c3b775d61a601308af9f9057ca1ed78da08b77ab2f837c5d90d7ea0994ae363e1ac5b30ea9b0b1216fec88c06e7b224832fd394db3
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Filesize
4.1MB
MD5e285774ca0642cd61c42dfffd04ed622
SHA187a9760f8f962ba675a5fe77ec70d3d1409619e1
SHA25645fc5537e7dd996052373650e8fd956df3426fbb253d31d56d2597a3eb44ac9c
SHA5120f0a5f76ab39aebf688b3cd9b9c7e2abc5b4a1db64f906b0a9295b3d9410a18574b1da628a4695d4c74c2a37a70c740bc818a8e4b2de474d271233edfbab5132
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec