Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240704-en -
resource tags
arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system -
submitted
06-07-2024 07:48
Static task
static1
Behavioral task
behavioral1
Sample
27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe
Resource
win10v2004-20240704-en
General
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Target
27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe
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Size
256KB
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MD5
27c977ec531488a06df33fdbdb19b04f
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SHA1
d47354595477dbb0f1c49b18b05df80e218877f2
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SHA256
e2e389ab119e5cbde9d055f38362186917d72ccdec03f6e39e1e7aa4fbb10d31
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SHA512
b35b2b878156b43c8dc38ca830d018ede272664b4a213de7ee2df67688049816d39c2565c7aa4479a6f0c6c46f9f096c5907bf3facb8e65646ae14a0a9cbbf99
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SSDEEP
3072:0YcLftDZK8SKMujRWwvZ0JYCB5hrsTK2ACDkm0jKWKC1gRNJ/NJ/EihadevN:jcL0Ruj8wvZ0SksTKjwkm8mf/EwvN
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 firewall policy service 3 TTPs 8 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications wmpsx64.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpsx64.exe = "C:\\Windows\\SysWOW64\\wmpsx64.exe:*:Enabled:Windows Secure Media" wmpsx64.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List wmpsx64.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile wmpsx64.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications wmpsx64.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpsx64.exe = "C:\\Windows\\SysWOW64\\wmpsx64.exe:*:Enabled:Windows Secure Media" wmpsx64.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List wmpsx64.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile wmpsx64.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-771719357-2485960699-3367710044-1000\Control Panel\International\Geo\Nation 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe -
Deletes itself 1 IoCs
pid Process 732 wmpsx64.exe -
Executes dropped EXE 2 IoCs
pid Process 220 wmpsx64.exe 732 wmpsx64.exe -
resource yara_rule behavioral2/memory/4832-0-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/4832-2-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/4832-3-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/4832-4-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/4832-38-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/732-45-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/732-46-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/732-47-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/732-48-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/732-54-0x0000000000400000-0x0000000000465000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Secure Media = "C:\\Windows\\SysWOW64\\wmpsx64.exe" wmpsx64.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum wmpsx64.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 wmpsx64.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe -
Drops file in System32 directory 5 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\ 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe File opened for modification C:\Windows\SysWOW64\wmpsx64.exe 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe File created C:\Windows\SysWOW64\wmpsx64.exe 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe File opened for modification C:\Windows\SysWOW64\ wmpsx64.exe File opened for modification C:\Windows\SysWOW64\wmpsx64.exe wmpsx64.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2344 set thread context of 4832 2344 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe 82 PID 220 set thread context of 732 220 wmpsx64.exe 87 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe -
Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4832 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe 4832 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe 4832 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe 4832 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe 732 wmpsx64.exe 732 wmpsx64.exe 732 wmpsx64.exe 732 wmpsx64.exe 732 wmpsx64.exe 732 wmpsx64.exe 732 wmpsx64.exe 732 wmpsx64.exe 732 wmpsx64.exe 732 wmpsx64.exe 732 wmpsx64.exe 732 wmpsx64.exe 732 wmpsx64.exe 732 wmpsx64.exe 732 wmpsx64.exe 732 wmpsx64.exe 732 wmpsx64.exe 732 wmpsx64.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2344 wrote to memory of 4832 2344 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe 82 PID 2344 wrote to memory of 4832 2344 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe 82 PID 2344 wrote to memory of 4832 2344 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe 82 PID 2344 wrote to memory of 4832 2344 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe 82 PID 2344 wrote to memory of 4832 2344 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe 82 PID 2344 wrote to memory of 4832 2344 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe 82 PID 2344 wrote to memory of 4832 2344 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe 82 PID 2344 wrote to memory of 4832 2344 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe 82 PID 4832 wrote to memory of 220 4832 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe 86 PID 4832 wrote to memory of 220 4832 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe 86 PID 4832 wrote to memory of 220 4832 27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe 86 PID 220 wrote to memory of 732 220 wmpsx64.exe 87 PID 220 wrote to memory of 732 220 wmpsx64.exe 87 PID 220 wrote to memory of 732 220 wmpsx64.exe 87 PID 220 wrote to memory of 732 220 wmpsx64.exe 87 PID 220 wrote to memory of 732 220 wmpsx64.exe 87 PID 220 wrote to memory of 732 220 wmpsx64.exe 87 PID 220 wrote to memory of 732 220 wmpsx64.exe 87 PID 220 wrote to memory of 732 220 wmpsx64.exe 87 PID 732 wrote to memory of 3428 732 wmpsx64.exe 56 PID 732 wrote to memory of 3428 732 wmpsx64.exe 56
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3428
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C:\Users\Admin\AppData\Local\Temp\27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2344 -
C:\Users\Admin\AppData\Local\Temp\27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\27c977ec531488a06df33fdbdb19b04f_JaffaCakes118.exe"3⤵
- Checks computer location settings
- Maps connected drives based on registry
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4832 -
C:\Windows\SysWOW64\wmpsx64.exe"C:\Windows\SysWOW64\wmpsx64.exe" C:\Users\Admin\AppData\Local\Temp\27C977~1.EXE4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:220 -
C:\Windows\SysWOW64\wmpsx64.exe"C:\Windows\SysWOW64\wmpsx64.exe" C:\Users\Admin\AppData\Local\Temp\27C977~1.EXE5⤵
- Modifies firewall policy service
- Deletes itself
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:732
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
256KB
MD527c977ec531488a06df33fdbdb19b04f
SHA1d47354595477dbb0f1c49b18b05df80e218877f2
SHA256e2e389ab119e5cbde9d055f38362186917d72ccdec03f6e39e1e7aa4fbb10d31
SHA512b35b2b878156b43c8dc38ca830d018ede272664b4a213de7ee2df67688049816d39c2565c7aa4479a6f0c6c46f9f096c5907bf3facb8e65646ae14a0a9cbbf99