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Analysis
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max time kernel
150s -
max time network
122s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
02/05/2024, 16:46
Static task
static1
Behavioral task
behavioral1
Sample
a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe
Resource
win10v2004-20240426-en
General
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Target
a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe
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Size
4.2MB
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MD5
bcce672b9bf60b7d65baed2fec91338c
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SHA1
de2f487f422d070dffca40be4d6cc338ee375de7
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SHA256
a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa
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SHA512
9e336fe670037655e8c9a0b85b1a28334cb68df7ddea1ddf1e5158637ba1a24cd0777ece06da30a9f5b74aa807e0117bcb524ffc887768bb2a18705cd10b5066
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SSDEEP
98304:RaVsjom70ndrBFgOmll6jSga2nxCwdk+mvEBS8Kssb:R+uom74drMJBirk+iEw8W
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/3792-2-0x0000000005230000-0x0000000005B1B000-memory.dmp family_glupteba behavioral2/memory/3792-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3792-43-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/3792-52-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/3792-78-0x0000000005230000-0x0000000005B1B000-memory.dmp family_glupteba behavioral2/memory/3792-79-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4764-75-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/4764-126-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1352-197-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1352-210-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1352-215-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1352-218-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1352-221-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1352-224-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1352-227-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1352-230-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1352-233-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba behavioral2/memory/1352-236-0x0000000000400000-0x0000000002EE9000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3544 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1352 csrss.exe 3448 injector.exe 4624 windefender.exe 572 windefender.exe -
resource yara_rule behavioral2/files/0x001a00000002ab4c-206.dat upx behavioral2/memory/4624-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/572-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4624-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/572-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/572-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-891789021-684472942-1795878712-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-891789021-684472942-1795878712-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.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 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 -
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 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe File created C:\Windows\rss\csrss.exe a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.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 2344 sc.exe -
pid Process 4188 powershell.exe 1644 powershell.exe 4028 powershell.exe 3204 powershell.exe 408 powershell.exe 4932 powershell.exe 4972 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 3028 schtasks.exe 4584 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,-341 = "Egypt Daylight Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs 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\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates 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,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs 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,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2892 = "Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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 powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-172 = "Central Standard Time (Mexico)" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.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" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-501 = "Nepal 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" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\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\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3204 powershell.exe 3204 powershell.exe 3792 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 3792 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 408 powershell.exe 408 powershell.exe 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 4932 powershell.exe 4932 powershell.exe 4972 powershell.exe 4972 powershell.exe 4188 powershell.exe 4188 powershell.exe 1644 powershell.exe 1644 powershell.exe 4028 powershell.exe 4028 powershell.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 1352 csrss.exe 1352 csrss.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 1352 csrss.exe 1352 csrss.exe 3448 injector.exe 3448 injector.exe 1352 csrss.exe 1352 csrss.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe 3448 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3204 powershell.exe Token: SeDebugPrivilege 3792 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Token: SeImpersonatePrivilege 3792 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe Token: SeDebugPrivilege 408 powershell.exe Token: SeDebugPrivilege 4932 powershell.exe Token: SeDebugPrivilege 4972 powershell.exe Token: SeDebugPrivilege 4188 powershell.exe Token: SeDebugPrivilege 1644 powershell.exe Token: SeDebugPrivilege 4028 powershell.exe Token: SeSystemEnvironmentPrivilege 1352 csrss.exe Token: SeSecurityPrivilege 2344 sc.exe Token: SeSecurityPrivilege 2344 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3792 wrote to memory of 3204 3792 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 81 PID 3792 wrote to memory of 3204 3792 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 81 PID 3792 wrote to memory of 3204 3792 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 81 PID 4764 wrote to memory of 408 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 86 PID 4764 wrote to memory of 408 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 86 PID 4764 wrote to memory of 408 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 86 PID 4764 wrote to memory of 428 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 88 PID 4764 wrote to memory of 428 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 88 PID 428 wrote to memory of 3544 428 cmd.exe 90 PID 428 wrote to memory of 3544 428 cmd.exe 90 PID 4764 wrote to memory of 4932 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 91 PID 4764 wrote to memory of 4932 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 91 PID 4764 wrote to memory of 4932 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 91 PID 4764 wrote to memory of 4972 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 93 PID 4764 wrote to memory of 4972 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 93 PID 4764 wrote to memory of 4972 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 93 PID 4764 wrote to memory of 1352 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 95 PID 4764 wrote to memory of 1352 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 95 PID 4764 wrote to memory of 1352 4764 a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe 95 PID 1352 wrote to memory of 4188 1352 csrss.exe 96 PID 1352 wrote to memory of 4188 1352 csrss.exe 96 PID 1352 wrote to memory of 4188 1352 csrss.exe 96 PID 1352 wrote to memory of 1644 1352 csrss.exe 101 PID 1352 wrote to memory of 1644 1352 csrss.exe 101 PID 1352 wrote to memory of 1644 1352 csrss.exe 101 PID 1352 wrote to memory of 4028 1352 csrss.exe 104 PID 1352 wrote to memory of 4028 1352 csrss.exe 104 PID 1352 wrote to memory of 4028 1352 csrss.exe 104 PID 1352 wrote to memory of 3448 1352 csrss.exe 106 PID 1352 wrote to memory of 3448 1352 csrss.exe 106 PID 4624 wrote to memory of 2516 4624 windefender.exe 112 PID 4624 wrote to memory of 2516 4624 windefender.exe 112 PID 4624 wrote to memory of 2516 4624 windefender.exe 112 PID 2516 wrote to memory of 2344 2516 cmd.exe 113 PID 2516 wrote to memory of 2344 2516 cmd.exe 113 PID 2516 wrote to memory of 2344 2516 cmd.exe 113 -
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\a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe"C:\Users\Admin\AppData\Local\Temp\a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3792 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3204
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C:\Users\Admin\AppData\Local\Temp\a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.exe"C:\Users\Admin\AppData\Local\Temp\a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa.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:4764 -
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:408
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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:428 -
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: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:4932
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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:4972
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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:1352 -
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:4188
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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:3028
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2000
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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:1644
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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:4028
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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:3448
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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:4584
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4624 -
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:2516 -
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:2344
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:572
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
MD5bcb1aba955e33b47448f03f0284e5bbf
SHA1ba22b0ba8af1fb8a200f17a916f9b564ef78c066
SHA256f4e1cc211bd873e29c0024891dae1661e445abc4c203aa1c7233fa79d730d441
SHA512a6ac5e03f5d27287e5d314245b816c99a779dac0cf55af651519ad87afd31f76d51618100e7d7d4d1d126fe1169295392a82828ec1c90545d4ccbcee13fd3668
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5918398fad993430a0861b5bb7af4dc26
SHA1e032aca18d953741777c340ab6e5fbd354adcc8f
SHA256cb302c42942ce1611ec901e4c85c171b8cde22fb9cc1e42d1e645e08c3f7520c
SHA51266e87de7930bab2c161b97ab228d2e01d9c8c48700b26c7af118912661380be1133ed8c11a268fd7e45452db4f5034226175a6e70aa675307ee927b9047b0662
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a990fed7fb8d4177ed6e9438573e8bce
SHA14ebb196aff133838f775977fed3eb80f9132d719
SHA256af75b35e5f15bf26ceeec8238358dc691ab5f53e72b4e1300c72d56db6e8bb6d
SHA5126c7fa28c182e846372c633c9cfa029855a050555d553fdd2a81af9834ec123d870beb8b50ec4b85a1510b6b9ce73834fdcbba3e7972bef1d74ea85c89c7a7ea8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d7171be580a5770cebc3afeff5eb7ec1
SHA139e5006de063c2cd49deed5311d53542a5c3f855
SHA256b9ac409327dff5ce6292ca498526990d5781eda62c4062948f5aea80fc79f889
SHA5127b1e3702e9c2ecd905ccf433f12a2b2d6e968a6d964bce8ce608934390e4198e3a39ba7cc8ee447d567aa9e32bf19574755b7a7cb53054a34c625cc3b1b6eb4b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50a034d4274bfcc670fc4566bacc1b167
SHA12c6edca25bc014f295be29e0135b4fd262e8bb24
SHA256dbffa51412dbc3b134183f15f6bd13202f7c2e5bfc1310cd57f35337658b45c9
SHA512a701207107724f226a90fb0ce98b1f1d543620865e66e655b87361de067916fa2092219f7fa837f3453f7d9ea22a766ec1f0fe5bceabf4cb16b693c011d71cc2
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Filesize
4.2MB
MD5bcce672b9bf60b7d65baed2fec91338c
SHA1de2f487f422d070dffca40be4d6cc338ee375de7
SHA256a1dfed167888eb163ca2133c49c8d9bd1fea8c18b8ddcc95f5d6b88cf825a3aa
SHA5129e336fe670037655e8c9a0b85b1a28334cb68df7ddea1ddf1e5158637ba1a24cd0777ece06da30a9f5b74aa807e0117bcb524ffc887768bb2a18705cd10b5066
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec