Analysis
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max time kernel
149s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
18/08/2024, 08:45
Static task
static1
Behavioral task
behavioral1
Sample
a61e41bf23d358c06b49ed609769b908_JaffaCakes118.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
a61e41bf23d358c06b49ed609769b908_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
a61e41bf23d358c06b49ed609769b908_JaffaCakes118.exe
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Size
148KB
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MD5
a61e41bf23d358c06b49ed609769b908
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SHA1
d217a18a4f87562d2bc9e944a4c4c76284b06c3b
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SHA256
0ec1d093cfdeffaef6247a6afaf4bc0429a1d9e2ea3319390cff7b1915f9b73c
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SHA512
2053197f329b53bcef1be7ac9175926ba57a5cc9c40a010eefab036fa8203df14bf4c9acfdddf058eb9d259bd73919544b93c5345249e2d9e0ec91fb3838fdfb
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SSDEEP
3072:LoixrduqW9Goin4lZoD9d16zVfMZ2KKNRdTaB:0W5jOA96xrRd
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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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\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 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 -
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\AntiVirusDisableNotify = "1" wmsncs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "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\FirewallOverride = "1" wmsncs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "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 a61e41bf23d358c06b49ed609769b908_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools wmsncs.exe -
Modifies Windows Firewall 2 TTPs 5 IoCs
pid Process 5048 netsh.exe 3564 netsh.exe 3364 netsh.exe 2292 netsh.exe 4248 netsh.exe -
Deletes itself 1 IoCs
pid Process 3976 wmsncs.exe -
Executes dropped EXE 1 IoCs
pid Process 3976 wmsncs.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" wmsncs.exe 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\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\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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Wins Service = "C:\\Windows\\system32\\wins\\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 a61e41bf23d358c06b49ed609769b908_JaffaCakes118.exe File opened for modification C:\Windows\Fonts\wmsncs.exe a61e41bf23d358c06b49ed609769b908_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 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 opened \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 opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \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 opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \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 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a61e41bf23d358c06b49ed609769b908_JaffaCakes118.exe -
Modifies data under HKEY_USERS 19 IoCs
description ioc Process 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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings 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\Active Setup\Installed Components\{103L3C30-C3B3-4130-9363-E59E1375PERM} wmsncs.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft wmsncs.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run wmsncs.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\MaxConnectionsPerServer = "65534" 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 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" wmsncs.exe Key created \REGISTRY\USER\.DEFAULT\Software wmsncs.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Active Setup 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 (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 wmsncs.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Run\Wmsncs Service = "C:\\Windows\\Fonts\\wmsncs.exe" wmsncs.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: 33 1136 a61e41bf23d358c06b49ed609769b908_JaffaCakes118.exe Token: SeIncBasePriorityPrivilege 1136 a61e41bf23d358c06b49ed609769b908_JaffaCakes118.exe Token: 33 3976 wmsncs.exe Token: SeIncBasePriorityPrivilege 3976 wmsncs.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 3976 wrote to memory of 5048 3976 wmsncs.exe 93 PID 3976 wrote to memory of 5048 3976 wmsncs.exe 93 PID 3976 wrote to memory of 5048 3976 wmsncs.exe 93 PID 3976 wrote to memory of 3564 3976 wmsncs.exe 95 PID 3976 wrote to memory of 3564 3976 wmsncs.exe 95 PID 3976 wrote to memory of 3564 3976 wmsncs.exe 95 PID 3976 wrote to memory of 3364 3976 wmsncs.exe 97 PID 3976 wrote to memory of 3364 3976 wmsncs.exe 97 PID 3976 wrote to memory of 3364 3976 wmsncs.exe 97 PID 3976 wrote to memory of 2292 3976 wmsncs.exe 99 PID 3976 wrote to memory of 2292 3976 wmsncs.exe 99 PID 3976 wrote to memory of 2292 3976 wmsncs.exe 99 PID 3976 wrote to memory of 4248 3976 wmsncs.exe 101 PID 3976 wrote to memory of 4248 3976 wmsncs.exe 101 PID 3976 wrote to memory of 4248 3976 wmsncs.exe 101
Processes
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C:\Users\Admin\AppData\Local\Temp\a61e41bf23d358c06b49ed609769b908_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\a61e41bf23d358c06b49ed609769b908_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:1136
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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:3976 -
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:5048
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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:3564
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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:3364
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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:2292
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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:4248
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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
148KB
MD5a61e41bf23d358c06b49ed609769b908
SHA1d217a18a4f87562d2bc9e944a4c4c76284b06c3b
SHA2560ec1d093cfdeffaef6247a6afaf4bc0429a1d9e2ea3319390cff7b1915f9b73c
SHA5122053197f329b53bcef1be7ac9175926ba57a5cc9c40a010eefab036fa8203df14bf4c9acfdddf058eb9d259bd73919544b93c5345249e2d9e0ec91fb3838fdfb