Analysis Overview
SHA256
d2aa76c69ea80d9dc95b60a8ab00c079322f8a1ce2b65826ee180d5f8a07dcfd
Threat Level: Shows suspicious behavior
The file 4328250444d67d911f0108e2cbea1531_JaffaCakes118 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Reads data files stored by FTP clients
Unsecured Credentials: Credentials In Files
Installs/modifies Browser Helper Object
Drops file in Windows directory
System Location Discovery: System Language Discovery
Unsigned PE
Modifies registry class
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-14 16:41
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-14 16:41
Reported
2024-10-14 16:44
Platform
win7-20240903-en
Max time kernel
117s
Max time network
118s
Command Line
Signatures
Reads data files stored by FTP clients
Unsecured Credentials: Credentials In Files
Installs/modifies Browser Helper Object
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\ | C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\ | C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\npbg8573.dll | C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\reg.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\REGSVR32.EXE | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Carter.clsCarter\Clsid | C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Carter.clsCarter | C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe
"C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\System32\cmd.exe /k %windir%\System32\reg.exe ADDHKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System/v EnableLUA /t REG_DWORD /d 0 /f
C:\Windows\SysWOW64\reg.exe
C:\Windows\System32\reg.exe ADDHKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System/v EnableLUA /t REG_DWORD /d 0 /f
C:\Windows\SysWOW64\REGSVR32.EXE
C:\Windows\system32\REGSVR32.EXE /s C:\Windows\npbg8573.dll
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | vivachistyle.com | udp |
| US | 8.8.8.8:53 | foxpremier2.web101.f1.k8.com.br | udp |
| BR | 187.73.33.43:80 | foxpremier2.web101.f1.k8.com.br | tcp |
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-14 16:41
Reported
2024-10-14 16:44
Platform
win10v2004-20241007-en
Max time kernel
141s
Max time network
135s
Command Line
Signatures
Reads data files stored by FTP clients
Unsecured Credentials: Credentials In Files
Installs/modifies Browser Helper Object
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\ | C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\ | C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\ealm4503.dll | C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\REGSVR32.EXE | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\reg.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Carter.clsCarter | C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Carter.clsCarter\Clsid | C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe
"C:\Users\Admin\AppData\Local\Temp\cartao.petrobras.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\System32\cmd.exe /k %windir%\System32\reg.exe ADDHKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System/v EnableLUA /t REG_DWORD /d 0 /f
C:\Windows\SysWOW64\reg.exe
C:\Windows\System32\reg.exe ADDHKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System/v EnableLUA /t REG_DWORD /d 0 /f
C:\Windows\SysWOW64\REGSVR32.EXE
C:\Windows\system32\REGSVR32.EXE /s C:\Windows\ealm4503.dll
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.28.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | foxpremier2.web101.f1.k8.com.br | udp |
| BR | 187.73.33.43:80 | foxpremier2.web101.f1.k8.com.br | tcp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |