Analysis Overview
SHA256
7815ea5f8a696cf2984b02f058c699a3682f9f3aebeb27486e9428194685c3c6
Threat Level: Known bad
The file f61be28bb9b68fecb9551495188f9434_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
ISR Stealer payload
Isrstealer family
ISR Stealer
NirSoft MailPassView
Detected Nirsoft tools
Reads user/profile data of web browsers
Uses the VBS compiler for execution
Executes dropped EXE
Loads dropped DLL
Accesses Microsoft Outlook accounts
UPX packed file
Suspicious use of SetThreadContext
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-15 22:56
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-12-15 22:56
Reported
2024-12-15 22:58
Platform
win7-20241010-en
Max time kernel
72s
Max time network
19s
Command Line
Signatures
ISR Stealer
ISR Stealer payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Isrstealer family
Detected Nirsoft tools
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
NirSoft MailPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\vbc.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\vbc.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\vbc.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\f61be28bb9b68fecb9551495188f9434_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\vbc.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\vbc.exe | N/A |
Reads user/profile data of web browsers
Uses the VBS compiler for execution
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Users\Admin\AppData\Local\Temp\vbc.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1736 set thread context of 2164 | N/A | C:\Users\Admin\AppData\Local\Temp\f61be28bb9b68fecb9551495188f9434_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\vbc.exe |
| PID 2164 set thread context of 2040 | N/A | C:\Users\Admin\AppData\Local\Temp\vbc.exe | C:\Users\Admin\AppData\Local\Temp\vbc.exe |
| PID 2164 set thread context of 3044 | N/A | C:\Users\Admin\AppData\Local\Temp\vbc.exe | C:\Users\Admin\AppData\Local\Temp\vbc.exe |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | 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\vbc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\f61be28bb9b68fecb9551495188f9434_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\vbc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\vbc.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\vbc.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f61be28bb9b68fecb9551495188f9434_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f61be28bb9b68fecb9551495188f9434_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\vbc.exe
C:\Users\Admin\AppData\Local\Temp\vbc.exe
C:\Users\Admin\AppData\Local\Temp\vbc.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\GxbwjoPX8J.ini"
C:\Users\Admin\AppData\Local\Temp\vbc.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\4MYj4tauuV.ini"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | www.chaprinks.com | udp |
Files
memory/1736-0-0x0000000074F01000-0x0000000074F02000-memory.dmp
memory/1736-1-0x0000000074F00000-0x00000000754AB000-memory.dmp
memory/1736-2-0x0000000074F00000-0x00000000754AB000-memory.dmp
\Users\Admin\AppData\Local\Temp\vbc.exe
| MD5 | 34aa912defa18c2c129f1e09d75c1d7e |
| SHA1 | 9c3046324657505a30ecd9b1fdb46c05bde7d470 |
| SHA256 | 6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386 |
| SHA512 | d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98 |
memory/2164-13-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2164-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2164-10-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2164-9-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2164-8-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1736-19-0x0000000074F00000-0x00000000754AB000-memory.dmp
memory/2040-27-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2040-26-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2040-25-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2040-22-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2040-29-0x0000000000400000-0x0000000000453000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\GxbwjoPX8J.ini
| MD5 | d1ea279fb5559c020a1b4137dc4de237 |
| SHA1 | db6f8988af46b56216a6f0daf95ab8c9bdb57400 |
| SHA256 | fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba |
| SHA512 | 720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3 |
memory/3044-32-0x0000000000400000-0x000000000041F000-memory.dmp
memory/3044-38-0x0000000000400000-0x000000000041F000-memory.dmp
memory/3044-37-0x0000000000400000-0x000000000041F000-memory.dmp
memory/3044-36-0x0000000000400000-0x000000000041F000-memory.dmp
memory/3044-39-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2164-40-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2164-42-0x0000000000400000-0x0000000000442000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-15 22:56
Reported
2024-12-15 22:58
Platform
win10v2004-20241007-en
Max time kernel
93s
Max time network
136s
Command Line
Signatures
ISR Stealer
ISR Stealer payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Isrstealer family
Detected Nirsoft tools
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
NirSoft MailPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\vbc.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\vbc.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\vbc.exe | N/A |
Reads user/profile data of web browsers
Uses the VBS compiler for execution
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Users\Admin\AppData\Local\Temp\vbc.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4972 set thread context of 4780 | N/A | C:\Users\Admin\AppData\Local\Temp\f61be28bb9b68fecb9551495188f9434_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\vbc.exe |
| PID 4780 set thread context of 1148 | N/A | C:\Users\Admin\AppData\Local\Temp\vbc.exe | C:\Users\Admin\AppData\Local\Temp\vbc.exe |
| PID 4780 set thread context of 4788 | N/A | C:\Users\Admin\AppData\Local\Temp\vbc.exe | C:\Users\Admin\AppData\Local\Temp\vbc.exe |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | 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\vbc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\vbc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\f61be28bb9b68fecb9551495188f9434_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\vbc.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\vbc.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f61be28bb9b68fecb9551495188f9434_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f61be28bb9b68fecb9551495188f9434_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\vbc.exe
C:\Users\Admin\AppData\Local\Temp\vbc.exe
C:\Users\Admin\AppData\Local\Temp\vbc.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\K3SuF4KoEJ.ini"
C:\Users\Admin\AppData\Local\Temp\vbc.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\tN5LZMIWt0.ini"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.chaprinks.com | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
Files
memory/4972-0-0x0000000075582000-0x0000000075583000-memory.dmp
memory/4972-1-0x0000000075580000-0x0000000075B31000-memory.dmp
memory/4972-2-0x0000000075580000-0x0000000075B31000-memory.dmp
memory/4780-5-0x0000000000400000-0x0000000000442000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\vbc.exe
| MD5 | d881de17aa8f2e2c08cbb7b265f928f9 |
| SHA1 | 08936aebc87decf0af6e8eada191062b5e65ac2a |
| SHA256 | b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0 |
| SHA512 | 5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34 |
memory/4780-10-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4972-13-0x0000000075580000-0x0000000075B31000-memory.dmp
memory/1148-14-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1148-17-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1148-18-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1148-19-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1148-23-0x0000000000400000-0x0000000000453000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\K3SuF4KoEJ.ini
| MD5 | d1ea279fb5559c020a1b4137dc4de237 |
| SHA1 | db6f8988af46b56216a6f0daf95ab8c9bdb57400 |
| SHA256 | fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba |
| SHA512 | 720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3 |
memory/4788-25-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4788-28-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4788-31-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4780-30-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4788-29-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4788-33-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4780-37-0x0000000000400000-0x0000000000442000-memory.dmp