Analysis Overview
SHA256
cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686
Threat Level: Known bad
The file cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686 was found to be: Known bad.
Malicious Activity Summary
ISR Stealer payload
Isrstealer family
Nirsoft
NirSoft MailPassView
UPX packed file
Reads user/profile data of web browsers
Accesses Microsoft Outlook accounts
Suspicious use of SetThreadContext
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-01 20:40
Signatures
ISR Stealer payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Isrstealer family
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-01 20:40
Reported
2022-10-01 22:14
Platform
win10v2004-20220812-en
Max time kernel
92s
Max time network
154s
Command Line
Signatures
NirSoft MailPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Nirsoft
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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 |
Reads user/profile data of web browsers
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 396 set thread context of 4944 | N/A | C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe | C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe |
| PID 396 set thread context of 560 | N/A | C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe | C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe
"C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe"
C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\bushkzJgEV.ini"
C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\JUZOs3FOye.ini"
Network
| Country | Destination | Domain | Proto |
| US | 67.27.154.126:80 | tcp | |
| US | 67.27.154.126:80 | tcp | |
| US | 8.8.8.8:53 | lightplanetltd.com | udp |
| US | 20.189.173.15:443 | tcp | |
| US | 67.27.154.126:80 | tcp | |
| US | 67.27.154.126:80 | tcp | |
| US | 67.27.154.126:80 | tcp |
Files
memory/4944-134-0x0000000000000000-mapping.dmp
memory/4944-135-0x0000000000400000-0x0000000000453000-memory.dmp
memory/4944-137-0x0000000000400000-0x0000000000453000-memory.dmp
memory/4944-138-0x0000000000400000-0x0000000000453000-memory.dmp
memory/4944-139-0x0000000000400000-0x0000000000453000-memory.dmp
memory/4944-140-0x0000000000400000-0x0000000000453000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\bushkzJgEV.ini
| MD5 | d1ea279fb5559c020a1b4137dc4de237 |
| SHA1 | db6f8988af46b56216a6f0daf95ab8c9bdb57400 |
| SHA256 | fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba |
| SHA512 | 720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3 |
memory/560-142-0x0000000000000000-mapping.dmp
memory/560-143-0x0000000000400000-0x000000000041F000-memory.dmp
memory/560-145-0x0000000000400000-0x000000000041F000-memory.dmp
memory/560-146-0x0000000000400000-0x000000000041F000-memory.dmp
memory/560-147-0x0000000000400000-0x000000000041F000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-01 20:40
Reported
2022-10-01 22:15
Platform
win7-20220812-en
Max time kernel
24s
Max time network
54s
Command Line
Signatures
NirSoft MailPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Nirsoft
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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 |
Reads user/profile data of web browsers
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1912 set thread context of 1564 | N/A | C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe | C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe |
| PID 1912 set thread context of 904 | N/A | C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe | C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe
"C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe"
C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\bV9dcGoBeO.ini"
C:\Users\Admin\AppData\Local\Temp\cf0c28083b79bae3c646a81a340229ec12a10ab6dfbd557d2bf2676d8eb45686.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\FLyFAcKys7.ini"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | lightplanetltd.com | udp |
Files
memory/1564-56-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1564-57-0x00000000004512E0-mapping.dmp
memory/1564-59-0x0000000076031000-0x0000000076033000-memory.dmp
memory/1564-60-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1564-61-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1564-62-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1564-63-0x0000000000400000-0x0000000000453000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\bV9dcGoBeO.ini
| MD5 | d1ea279fb5559c020a1b4137dc4de237 |
| SHA1 | db6f8988af46b56216a6f0daf95ab8c9bdb57400 |
| SHA256 | fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba |
| SHA512 | 720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3 |
memory/904-66-0x0000000000400000-0x000000000041F000-memory.dmp
memory/904-67-0x000000000041C410-mapping.dmp
memory/904-70-0x0000000000400000-0x000000000041F000-memory.dmp
memory/904-71-0x0000000000400000-0x000000000041F000-memory.dmp
memory/904-72-0x0000000000400000-0x000000000041F000-memory.dmp