Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
10/05/2024, 09:45
Static task
static1
Behavioral task
behavioral1
Sample
db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe
Resource
win10v2004-20240426-en
General
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Target
db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe
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Size
4.1MB
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MD5
4bd3cff685df35bb216ef1f92e9b41cc
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SHA1
284467d3e5c7bf6355be18a4170ecc5b026b288b
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SHA256
db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2
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SHA512
6eab90673bf3f48e8784981626d3803594079eaf7509f885802b7a814724ea82c966637e89ca453585175102e8a29f984b54d24fbde81d86afdf90b10a58f2c2
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SSDEEP
98304:h7K5Vl8ZqE20RUOYSTpt3v3LmeLqNDCMYVmo+6gmCPLhQD6SI84:ciZ6oxTpt3fKacDClMdRZ1gw84
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/1544-2-0x0000000004AB0000-0x000000000539B000-memory.dmp family_glupteba behavioral2/memory/1544-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1544-51-0x0000000000400000-0x0000000002958000-memory.dmp family_glupteba behavioral2/memory/1544-54-0x0000000004AB0000-0x000000000539B000-memory.dmp family_glupteba behavioral2/memory/1544-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1544-52-0x0000000000400000-0x0000000002958000-memory.dmp family_glupteba behavioral2/memory/4392-123-0x0000000000400000-0x0000000002958000-memory.dmp family_glupteba behavioral2/memory/4392-129-0x0000000000400000-0x0000000002958000-memory.dmp family_glupteba behavioral2/memory/2196-207-0x0000000000400000-0x0000000002958000-memory.dmp family_glupteba behavioral2/memory/2196-217-0x0000000000400000-0x0000000002958000-memory.dmp family_glupteba behavioral2/memory/2196-218-0x0000000000400000-0x0000000002958000-memory.dmp family_glupteba behavioral2/memory/2196-220-0x0000000000400000-0x0000000002958000-memory.dmp family_glupteba behavioral2/memory/2196-222-0x0000000000400000-0x0000000002958000-memory.dmp family_glupteba behavioral2/memory/2196-224-0x0000000000400000-0x0000000002958000-memory.dmp family_glupteba behavioral2/memory/2196-226-0x0000000000400000-0x0000000002958000-memory.dmp family_glupteba behavioral2/memory/2196-228-0x0000000000400000-0x0000000002958000-memory.dmp family_glupteba behavioral2/memory/2196-230-0x0000000000400000-0x0000000002958000-memory.dmp family_glupteba behavioral2/memory/2196-232-0x0000000000400000-0x0000000002958000-memory.dmp family_glupteba behavioral2/memory/2196-234-0x0000000000400000-0x0000000002958000-memory.dmp family_glupteba behavioral2/memory/2196-236-0x0000000000400000-0x0000000002958000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 704 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2196 csrss.exe 4880 injector.exe 1468 windefender.exe 2140 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa65-210.dat upx behavioral2/memory/1468-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2140-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1468-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2140-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2140-223-0x0000000000400000-0x00000000008DF000-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\"" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.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\"" 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\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 File created 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 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe File created C:\Windows\rss\csrss.exe db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 5004 sc.exe -
pid Process 4944 powershell.exe 4060 powershell.exe 3604 powershell.exe 1320 powershell.exe 2740 powershell.exe 3468 powershell.exe 3544 powershell.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 3624 1544 WerFault.exe 79 4088 4392 WerFault.exe 89 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 384 schtasks.exe 3588 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-334 = "Jordan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-532 = "Sri Lanka Standard 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" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs 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,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 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\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\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\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.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,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.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,-281 = "Central Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-351 = "FLE Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.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\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2740 powershell.exe 2740 powershell.exe 1544 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 1544 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 3468 powershell.exe 3468 powershell.exe 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 3544 powershell.exe 3544 powershell.exe 4944 powershell.exe 4944 powershell.exe 4060 powershell.exe 4060 powershell.exe 3604 powershell.exe 3604 powershell.exe 1320 powershell.exe 1320 powershell.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 2196 csrss.exe 2196 csrss.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 2196 csrss.exe 2196 csrss.exe 4880 injector.exe 4880 injector.exe 2196 csrss.exe 2196 csrss.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe 4880 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2740 powershell.exe Token: SeDebugPrivilege 1544 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Token: SeImpersonatePrivilege 1544 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe Token: SeDebugPrivilege 3468 powershell.exe Token: SeDebugPrivilege 3544 powershell.exe Token: SeDebugPrivilege 4944 powershell.exe Token: SeDebugPrivilege 4060 powershell.exe Token: SeDebugPrivilege 3604 powershell.exe Token: SeDebugPrivilege 1320 powershell.exe Token: SeSystemEnvironmentPrivilege 2196 csrss.exe Token: SeSecurityPrivilege 5004 sc.exe Token: SeSecurityPrivilege 5004 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1544 wrote to memory of 2740 1544 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 85 PID 1544 wrote to memory of 2740 1544 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 85 PID 1544 wrote to memory of 2740 1544 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 85 PID 4392 wrote to memory of 3468 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 93 PID 4392 wrote to memory of 3468 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 93 PID 4392 wrote to memory of 3468 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 93 PID 4392 wrote to memory of 2696 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 95 PID 4392 wrote to memory of 2696 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 95 PID 2696 wrote to memory of 704 2696 cmd.exe 97 PID 2696 wrote to memory of 704 2696 cmd.exe 97 PID 4392 wrote to memory of 3544 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 98 PID 4392 wrote to memory of 3544 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 98 PID 4392 wrote to memory of 3544 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 98 PID 4392 wrote to memory of 4944 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 100 PID 4392 wrote to memory of 4944 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 100 PID 4392 wrote to memory of 4944 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 100 PID 4392 wrote to memory of 2196 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 102 PID 4392 wrote to memory of 2196 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 102 PID 4392 wrote to memory of 2196 4392 db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe 102 PID 2196 wrote to memory of 4060 2196 csrss.exe 105 PID 2196 wrote to memory of 4060 2196 csrss.exe 105 PID 2196 wrote to memory of 4060 2196 csrss.exe 105 PID 2196 wrote to memory of 3604 2196 csrss.exe 111 PID 2196 wrote to memory of 3604 2196 csrss.exe 111 PID 2196 wrote to memory of 3604 2196 csrss.exe 111 PID 2196 wrote to memory of 1320 2196 csrss.exe 114 PID 2196 wrote to memory of 1320 2196 csrss.exe 114 PID 2196 wrote to memory of 1320 2196 csrss.exe 114 PID 2196 wrote to memory of 4880 2196 csrss.exe 116 PID 2196 wrote to memory of 4880 2196 csrss.exe 116 PID 1468 wrote to memory of 3420 1468 windefender.exe 122 PID 1468 wrote to memory of 3420 1468 windefender.exe 122 PID 1468 wrote to memory of 3420 1468 windefender.exe 122 PID 3420 wrote to memory of 5004 3420 cmd.exe 123 PID 3420 wrote to memory of 5004 3420 cmd.exe 123 PID 3420 wrote to memory of 5004 3420 cmd.exe 123 -
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\db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe"C:\Users\Admin\AppData\Local\Temp\db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1544 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2740
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C:\Users\Admin\AppData\Local\Temp\db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.exe"C:\Users\Admin\AppData\Local\Temp\db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2.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:4392 -
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:3468
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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:2696 -
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:704
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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:3544
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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\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:2196 -
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:4060
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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:384
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3880
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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:3604
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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:1320
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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:4880
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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:3588
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1468 -
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:3420 -
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:5004
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4392 -s 6083⤵
- Program crash
PID:4088
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1544 -s 9482⤵
- Program crash
PID:3624
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1544 -ip 15441⤵PID:2116
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4392 -ip 43921⤵PID:3960
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2140
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
MD5d42a4296bd31197d41fbf23ad85c1584
SHA18ee41aa4d88b7e2170e1d33c3e7c8ca7cd784466
SHA256930575339f5f276c59b40dd7ae34526414a8f291ba3ab3feb31c448865a2ec12
SHA5129e9574f7ebffa8829dc31b4a67e855abd039defa894fa033592fc2469da41c51f188a6c02d9a2a2025dbbf1789f0e69b901d5340ed552fb5b9e81a867591827b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ea2f740cf4acc77f156523fa19573b46
SHA15faea452e78365ab838495c90e2d24fda4b6e114
SHA2567258452c07d75902db8d654e068e3bffe96b6aff73542e1dcdc3a29bdddd78af
SHA51272cfd8c8b0505f598f2df22ef378345f64a3368c72a7298b4c825b39bc5940e311316591e6aeb40bdf982b06816548218d2b2c47de1263cfb9642c33c56349b4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50d13544b4325662af2b1b904b24a083f
SHA1f0e1860f4849ec574b37c0bb20656c98e2201a77
SHA25669126f1d81585a98c739bc5f65d64a4905645a9a81dbe338c776a9db3ba38670
SHA512d86c36c87facc6432b2725461922f778e31cf7694254d5e59148a6da9541395e28538cdb96fa22c71065b3605279f65b651b3b1c07498f93874247c2d8ee562d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55ec32a8cac82288f3596de4d0fafe571
SHA169e380f0161d084cbd42f7f4ad6e50e3526c9d2e
SHA25688bf677e4df96aa124822d83b13ad6ccab06133263735ec71a2f68b3c29ea9ad
SHA5124e277d63052b553fcc2402c6fdc60bfa5b409396826add4e973d232d9f9f53dd6297716a0cb050c726f7bcbd4e4d80edac4f53e22d4ba0611bda922842436de2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50d973bcbcca90a4eceb16bb11332c812
SHA1bb728b478de85f4a00c84b5933f04bede9f4dce1
SHA256283df79448c623f5abf5d9f588929cca896aa6188c38028512d894fc9cb721e6
SHA512b37bb99a757e282aa5f1b87401ce9e1241eb95186e648c29a5e60d5a45eb407f5783156a72060e32338f9d6be2ff0919782fd9d8fc945c0e8af611c07c32e962
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Filesize
4.1MB
MD54bd3cff685df35bb216ef1f92e9b41cc
SHA1284467d3e5c7bf6355be18a4170ecc5b026b288b
SHA256db85f353e4d764abd792b9cea28c600791e1e48b9c253ff4f7d577fff5c9ade2
SHA5126eab90673bf3f48e8784981626d3803594079eaf7509f885802b7a814724ea82c966637e89ca453585175102e8a29f984b54d24fbde81d86afdf90b10a58f2c2
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec