Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
27-11-2024 19:14
Static task
static1
Behavioral task
behavioral1
Sample
a942e57ad5f91351cc03c6b77b5dd439_JaffaCakes118.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
a942e57ad5f91351cc03c6b77b5dd439_JaffaCakes118.exe
Resource
win10v2004-20241007-en
General
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Target
a942e57ad5f91351cc03c6b77b5dd439_JaffaCakes118.exe
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Size
158KB
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MD5
a942e57ad5f91351cc03c6b77b5dd439
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SHA1
89ea1c58c986f81d01f4da5a2c2917437e7f392a
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SHA256
05aeda20e41ca92a853806bd846b8d1703ae8b36857f2aec62c298feca0624b1
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SHA512
e68cd052a94c31de9bcb49353f6dfb5a250181ba4847f4f542b7f4ab96dbf134597d450527a17b8f4406116f246f511d2799fd2e3d91562b5743c24f5cbcc821
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SSDEEP
3072:doixrduqW9Goin4lZoD9d16zVfMZ2KKNRdTaB:mW5jOA96xrRd
Malware Config
Extracted
metasploit
encoder/call4_dword_xor
Signatures
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MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
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Metasploit family
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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 3 TTPs 8 IoCs
description ioc Process 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 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 -
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 -
Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{103L3C30-C3B3-4130-9363-E59E1375PERM} wmsncs.exe 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 -
Looks for VMWare Tools registry key 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools a942e57ad5f91351cc03c6b77b5dd439_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools wmsncs.exe -
Modifies Windows Firewall 2 TTPs 5 IoCs
pid Process 4960 netsh.exe 3004 netsh.exe 2476 netsh.exe 4992 netsh.exe 2948 netsh.exe -
Deletes itself 1 IoCs
pid Process 540 wmsncs.exe -
Executes dropped EXE 1 IoCs
pid Process 540 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\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 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 -
Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\system32\spool\drivers\wmsncs.exe wmsncs.exe 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 -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Common Files\System wmsncs.exe 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 -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\Fonts\wmsncs.exe a942e57ad5f91351cc03c6b77b5dd439_JaffaCakes118.exe File opened for modification C:\Windows\Fonts\wmsncs.exe a942e57ad5f91351cc03c6b77b5dd439_JaffaCakes118.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Netsh Helper DLL 1 TTPs 15 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe -
System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a942e57ad5f91351cc03c6b77b5dd439_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wmsncs.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe -
Modifies data under HKEY_USERS 19 IoCs
description ioc Process 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 (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" wmsncs.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" wmsncs.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Active Setup\Installed Components\{103L3C30-C3B3-4130-9363-E59E1375PERM} wmsncs.exe Key created \REGISTRY\USER\.DEFAULT\Software wmsncs.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\MaxConnectionsPerServer = "65534" 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\Microsoft\Windows\CurrentVersion\Run\NvidMediaCenter = "C:\\Program Files (x86)\\Common Files\\System\\wmsncs.exe" wmsncs.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Run\Wins Service = "C:\\Windows\\system32\\wins\\wmsncs.exe" wmsncs.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ wmsncs.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Active Setup\Installed Components wmsncs.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings wmsncs.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run wmsncs.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" wmsncs.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Active Setup wmsncs.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\MaxConnectionsPer1_0Server = "65534" wmsncs.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" wmsncs.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft wmsncs.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 -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: 33 3836 a942e57ad5f91351cc03c6b77b5dd439_JaffaCakes118.exe Token: SeIncBasePriorityPrivilege 3836 a942e57ad5f91351cc03c6b77b5dd439_JaffaCakes118.exe Token: 33 540 wmsncs.exe Token: SeIncBasePriorityPrivilege 540 wmsncs.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 540 wrote to memory of 4960 540 wmsncs.exe 87 PID 540 wrote to memory of 4960 540 wmsncs.exe 87 PID 540 wrote to memory of 4960 540 wmsncs.exe 87 PID 540 wrote to memory of 3004 540 wmsncs.exe 89 PID 540 wrote to memory of 3004 540 wmsncs.exe 89 PID 540 wrote to memory of 3004 540 wmsncs.exe 89 PID 540 wrote to memory of 2476 540 wmsncs.exe 91 PID 540 wrote to memory of 2476 540 wmsncs.exe 91 PID 540 wrote to memory of 2476 540 wmsncs.exe 91 PID 540 wrote to memory of 4992 540 wmsncs.exe 93 PID 540 wrote to memory of 4992 540 wmsncs.exe 93 PID 540 wrote to memory of 4992 540 wmsncs.exe 93 PID 540 wrote to memory of 2948 540 wmsncs.exe 95 PID 540 wrote to memory of 2948 540 wmsncs.exe 95 PID 540 wrote to memory of 2948 540 wmsncs.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\a942e57ad5f91351cc03c6b77b5dd439_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\a942e57ad5f91351cc03c6b77b5dd439_JaffaCakes118.exe"1⤵
- Looks for VMWare Tools registry key
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3836
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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
- Boot or Logon Autostart Execution: Active Setup
- Looks for VMWare Tools registry key
- 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
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:540 -
C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" firewall set portopening TCP 1013 BS2⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:4960
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" firewall set portopening TCP 8080 PORT12⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:3004
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" firewall set portopening TCP 8081 PORT22⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2476
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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
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:4992
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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
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2948
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Active Setup
1Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
3Windows Service
3Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
3Active Setup
1Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
3Windows Service
3Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
4Disable or Modify System Firewall
2Disable or Modify Tools
2Modify Registry
7Virtualization/Sandbox Evasion
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
158KB
MD5a942e57ad5f91351cc03c6b77b5dd439
SHA189ea1c58c986f81d01f4da5a2c2917437e7f392a
SHA25605aeda20e41ca92a853806bd846b8d1703ae8b36857f2aec62c298feca0624b1
SHA512e68cd052a94c31de9bcb49353f6dfb5a250181ba4847f4f542b7f4ab96dbf134597d450527a17b8f4406116f246f511d2799fd2e3d91562b5743c24f5cbcc821