Analysis
- max time kernel
148s - max time network
147s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system - submitted
25/02/2024, 22:23
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
a4bdf08099f23da066d81eddb1c229d1.exe
Resource
win7-20240221-en
windows7-x64
21 signatures
150 seconds
Behavioral task
behavioral2
Sample
a4bdf08099f23da066d81eddb1c229d1.exe
Resource
win10v2004-20240221-en
windows10-2004-x64
21 signatures
150 seconds
General
- Target a4bdf08099f23da066d81eddb1c229d1.exe
- Size 119KB
- Sample240225-2a4yfaea97
- SHA256 6a3faf643c2c33f48b0e59c9edb14baebbf9ce1678aed83727106b739f0cafcb
- MD5 a4bdf08099f23da066d81eddb1c229d1
- SHA1 bcd16532c813e5ba009d4d3cd246796d3ffb7a45
- SHA512 b5cca53eab5ff8db14cb53262de2dda2730f8149b51366a55bd4bef3c4501e594000edc4695ca61154e768609be0333898a9586f2840df6a23aaa54cd0abc69e
- SSDEEP 3072:hIZopSB/iLm7CEdYVgfIYCBP04+i6Hz3qFlhH0ytpAGf:VpSBt7CE+gfIhM4l6Hz3qFlJ0cei
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
metasploit
Version
-
encoder/call4_dword_xor
Signatures
- Detect Lumma Stealer payload V4 13 IoCs
resource yara_rule behavioral1/memory/2924-7-0x0000000000400000-0x000000000064D000-memory.dmp family_lumma_v4 behavioral1/memory/3044-24-0x0000000000400000-0x000000000064D000-memory.dmp family_lumma_v4 behavioral1/memory/3044-31-0x0000000000400000-0x000000000064D000-memory.dmp family_lumma_v4 behavioral1/memory/3044-35-0x0000000000400000-0x000000000064D000-memory.dmp family_lumma_v4 behavioral1/memory/3044-58-0x0000000000400000-0x000000000064D000-memory.dmp family_lumma_v4 behavioral1/memory/3044-68-0x0000000000400000-0x000000000064D000-memory.dmp family_lumma_v4 behavioral1/memory/3044-92-0x0000000000400000-0x000000000064D000-memory.dmp family_lumma_v4 behavioral1/memory/3044-115-0x0000000000400000-0x000000000064D000-memory.dmp family_lumma_v4 behavioral1/memory/3044-125-0x0000000000400000-0x000000000064D000-memory.dmp family_lumma_v4 behavioral1/memory/3044-135-0x0000000000400000-0x000000000064D000-memory.dmp family_lumma_v4 behavioral1/memory/3044-148-0x0000000000400000-0x000000000064D000-memory.dmp family_lumma_v4 behavioral1/memory/3044-158-0x0000000000400000-0x000000000064D000-memory.dmp family_lumma_v4 behavioral1/memory/3044-168-0x0000000000400000-0x000000000064D000-memory.dmp family_lumma_v4 - MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe \"C:\\Windows\\Fonts\\wmsncs.exe\"" wmsncs.exe - Modifies firewall policy service 2 TTPs 8 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\EnableFirewall = "0" wmsncs.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\DoNotAllowExceptions = "0" wmsncs.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\DisableNotifications = "1" wmsncs.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile wmsncs.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" wmsncs.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" wmsncs.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" wmsncs.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile wmsncs.exe - Modifies security service 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" wmsncs.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" wmsncs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" wmsncs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" wmsncs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" wmsncs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" wmsncs.exe - Looks for VMWare Tools registry key 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools a4bdf08099f23da066d81eddb1c229d1.exe Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools wmsncs.exe - Modifies Installed Components in the registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{103L3C30-C3B3-4130-9363-E59E1375PERM}\StubPath = "C:\\Windows\\Fonts\\wmsncs.exe" wmsncs.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{103L3C30-C3B3-4130-9363-E59E1375PERM} wmsncs.exe - Modifies Windows Firewall 2 TTPs 5 IoCs
pid Process 2748 netsh.exe 2580 netsh.exe 2888 netsh.exe 2696 netsh.exe 2464 netsh.exe - Deletes itself 1 IoCs
pid Process 3044 wmsncs.exe - Executes dropped EXE 1 IoCs
pid Process 3044 wmsncs.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" wmsncs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" wmsncs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" wmsncs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" wmsncs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" wmsncs.exe - Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\NvidMediaCenter = "C:\\Program Files (x86)\\Common Files\\System\\wmsncs.exe" wmsncs.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Spool Driver Service = "C:\\Windows\\system32\\spool\\drivers\\wmsncs.exe" wmsncs.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Wins Service = "C:\\Windows\\system32\\wins\\wmsncs.exe" wmsncs.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Wmsncs Service = "C:\\Windows\\Fonts\\wmsncs.exe" wmsncs.exe - Drops file in System32 directory 5 IoCs
description ioc Process File opened for modification C:\Windows\system32\spool\drivers\wmsncs.exe wmsncs.exe File created C:\Windows\SysWOW64\wins\wmsncs.exe wmsncs.exe File opened for modification C:\Windows\SysWOW64\wins\wmsncs.exe wmsncs.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat wmsncs.exe File created C:\Windows\system32\spool\drivers\wmsncs.exe wmsncs.exe - Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files (x86)\Common Files\System\wmsncs.exe wmsncs.exe File opened for modification C:\Program Files (x86)\Common Files\System\wmsncs.exe wmsncs.exe File opened for modification C:\Program Files (x86)\Common Files\System wmsncs.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\Fonts\wmsncs.exe a4bdf08099f23da066d81eddb1c229d1.exe File opened for modification C:\Windows\Fonts\wmsncs.exe a4bdf08099f23da066d81eddb1c229d1.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-4 = "1.0" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-101 = "Provides Network Access Protection enforcement for EAP authenticated network connections, such as those used with 802.1X and VPN technologies." netsh.exe Key created \REGISTRY\USER\.DEFAULT\Software wmsncs.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" wmsncs.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-102 = "Microsoft Corporation" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-100 = "EAP Quarantine Enforcement Client" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-102 = "1.0" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-102 = "Microsoft Corporation" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-1 = "IPsec Relying Party" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-3 = "Microsoft Corporation" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-101 = "Provides RD Gateway enforcement for NAP" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-102 = "1.0" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-103 = "Microsoft Corporation" netsh.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings wmsncs.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 wmsncs.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-2 = "Provides IPsec based enforcement for Network Access Protection" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-101 = "Provides RD Gateway enforcement for NAP" netsh.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Active Setup\Installed Components wmsncs.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Spool Driver Service = "C:\\Windows\\system32\\spool\\drivers\\wmsncs.exe" wmsncs.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-4 = "1.0" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-1 = "IPsec Relying Party" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-100 = "RD Gateway Quarantine Enforcement Client" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-102 = "1.0" netsh.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Active Setup\Installed Components\{103L3C30-C3B3-4130-9363-E59E1375PERM} wmsncs.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Wins Service = "C:\\Windows\\system32\\wins\\wmsncs.exe" wmsncs.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-103 = "1.0" netsh.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections wmsncs.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 netsh.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 netsh.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-100 = "DHCP Quarantine Enforcement Client" netsh.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings wmsncs.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Active Setup wmsncs.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Wmsncs Service = "C:\\Windows\\Fonts\\wmsncs.exe" wmsncs.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-101 = "Provides DHCP based enforcement for NAP" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-101 = "Provides Network Access Protection enforcement for EAP authenticated network connections, such as those used with 802.1X and VPN technologies." netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-101 = "Provides Network Access Protection enforcement for EAP authenticated network connections, such as those used with 802.1X and VPN technologies." netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-1 = "IPsec Relying Party" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-3 = "Microsoft Corporation" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-101 = "Provides Network Access Protection enforcement for EAP authenticated network connections, such as those used with 802.1X and VPN technologies." netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Active Setup\Installed Components\{103L3C30-C3B3-4130-9363-E59E1375PERM}\StubPath = "C:\\Windows\\Fonts\\wmsncs.exe" wmsncs.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-101 = "Provides DHCP based enforcement for NAP" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-3 = "Microsoft Corporation" netsh.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ wmsncs.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-2 = "Provides IPsec based enforcement for Network Access Protection" netsh.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\MaxConnectionsPerServer = "65534" wmsncs.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 wmsncs.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-2 = "Provides IPsec based enforcement for Network Access Protection" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-102 = "1.0" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-100 = "EAP Quarantine Enforcement Client" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-100 = "EAP Quarantine Enforcement Client" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-100 = "EAP Quarantine Enforcement Client" netsh.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\MaxConnectionsPer1_0Server = "65534" wmsncs.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-103 = "1.0" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-1 = "IPsec Relying Party" netsh.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" wmsncs.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-100 = "RD Gateway Quarantine Enforcement Client" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-101 = "Provides Network Access Protection enforcement for EAP authenticated network connections, such as those used with 802.1X and VPN technologies." netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NvidMediaCenter = "C:\\Program Files (x86)\\Common Files\\System\\wmsncs.exe" wmsncs.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-100 = "RD Gateway Quarantine Enforcement Client" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-103 = "Microsoft Corporation" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-100 = "EAP Quarantine Enforcement Client" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-102 = "1.0" netsh.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: 33 2924 a4bdf08099f23da066d81eddb1c229d1.exe Token: SeIncBasePriorityPrivilege 2924 a4bdf08099f23da066d81eddb1c229d1.exe Token: 33 3044 wmsncs.exe Token: SeIncBasePriorityPrivilege 3044 wmsncs.exe - Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 3044 wrote to memory of 2580 3044 wmsncs.exe 29 PID 3044 wrote to memory of 2580 3044 wmsncs.exe 29 PID 3044 wrote to memory of 2580 3044 wmsncs.exe 29 PID 3044 wrote to memory of 2580 3044 wmsncs.exe 29 PID 3044 wrote to memory of 2888 3044 wmsncs.exe 31 PID 3044 wrote to memory of 2888 3044 wmsncs.exe 31 PID 3044 wrote to memory of 2888 3044 wmsncs.exe 31 PID 3044 wrote to memory of 2888 3044 wmsncs.exe 31 PID 3044 wrote to memory of 2696 3044 wmsncs.exe 33 PID 3044 wrote to memory of 2696 3044 wmsncs.exe 33 PID 3044 wrote to memory of 2696 3044 wmsncs.exe 33 PID 3044 wrote to memory of 2696 3044 wmsncs.exe 33 PID 3044 wrote to memory of 2464 3044 wmsncs.exe 35 PID 3044 wrote to memory of 2464 3044 wmsncs.exe 35 PID 3044 wrote to memory of 2464 3044 wmsncs.exe 35 PID 3044 wrote to memory of 2464 3044 wmsncs.exe 35 PID 3044 wrote to memory of 2748 3044 wmsncs.exe 37 PID 3044 wrote to memory of 2748 3044 wmsncs.exe 37 PID 3044 wrote to memory of 2748 3044 wmsncs.exe 37 PID 3044 wrote to memory of 2748 3044 wmsncs.exe 37
Processes
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C:\Users\Admin\AppData\Local\Temp\a4bdf08099f23da066d81eddb1c229d1.exe"C:\Users\Admin\AppData\Local\Temp\a4bdf08099f23da066d81eddb1c229d1.exe"1⤵
- Looks for VMWare Tools registry key
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2924
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C:\Windows\Fonts\wmsncs.exe"C:\Windows\Fonts\wmsncs.exe"1⤵
- Modifies WinLogon for persistence
- Modifies firewall policy service
- Modifies security service
- Windows security bypass
- Looks for VMWare Tools registry key
- Modifies Installed Components in the registry
- Deletes itself
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Program Files directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3044 -
C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" firewall set portopening TCP 1013 BS2⤵
- Modifies Windows Firewall
- Modifies data under HKEY_USERS
PID:2580
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" firewall set portopening TCP 8080 PORT12⤵
- Modifies Windows Firewall
- Modifies data under HKEY_USERS
PID:2888
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" firewall set portopening TCP 8081 PORT22⤵
- Modifies Windows Firewall
- Modifies data under HKEY_USERS
PID:2696
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" firewall add allowedprogram "C:\Windows\Fonts\wmsncs.exe" workstation ENABLE ALL2⤵
- Modifies Windows Firewall
- Modifies data under HKEY_USERS
PID:2464
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" firewall set allowedprogram "C:\Windows\Fonts\wmsncs.exe" workstation ENABLE ALL2⤵
- Modifies Windows Firewall
- Modifies data under HKEY_USERS
PID:2748
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Create or Modify System Process
3Windows Service
3Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Create or Modify System Process
3Windows Service
3Defense Evasion
Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
2Modify Registry
7Virtualization/Sandbox Evasion
1Replay Monitor
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Downloads
- Path C:\Windows\Fonts\wmsncs.exe
- Size 119KB
- SHA256 6a3faf643c2c33f48b0e59c9edb14baebbf9ce1678aed83727106b739f0cafcb
- MD5 a4bdf08099f23da066d81eddb1c229d1
- SHA1 bcd16532c813e5ba009d4d3cd246796d3ffb7a45
- SHA512 b5cca53eab5ff8db14cb53262de2dda2730f8149b51366a55bd4bef3c4501e594000edc4695ca61154e768609be0333898a9586f2840df6a23aaa54cd0abc69e
- SSDEEP 3072:hIZopSB/iLm7CEdYVgfIYCBP04+i6Hz3qFlhH0ytpAGf:VpSBt7CE+gfIhM4l6Hz3qFlJ0cei
- MD5 SHA1 SHA512 SSDEEP