Analysis Overview
SHA256
70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92
Threat Level: Known bad
The file 70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92 was found to be: Known bad.
Malicious Activity Summary
Isrstealer family
ISR Stealer Payload
NirSoft MailPassView
Nirsoft
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
2022-03-08 15:49
Signatures
ISR Stealer Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Isrstealer family
Analysis: behavioral1
Detonation Overview
Submitted
2022-03-08 15:49
Reported
2022-03-08 15:52
Platform
win7-20220223-en
Max time kernel
4294178s
Max time network
121s
Command Line
Signatures
NirSoft MailPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Nirsoft
| Description | Indicator | Process | Target |
| 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 |
Reads user/profile data of web browsers
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1164 set thread context of 908 | N/A | C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe | C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe |
| PID 1164 set thread context of 1924 | N/A | C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe | C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe
"C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe"
C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\ittjL3ZT4L.ini"
C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\j7zKbILom8.ini"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | honda-hcamjlg.com | udp |
Files
memory/908-56-0x0000000000400000-0x0000000000453000-memory.dmp
memory/908-58-0x0000000075BD1000-0x0000000075BD3000-memory.dmp
memory/908-59-0x0000000000400000-0x0000000000453000-memory.dmp
memory/908-60-0x0000000000400000-0x0000000000453000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\ittjL3ZT4L.ini
| MD5 | d1ea279fb5559c020a1b4137dc4de237 |
| SHA1 | db6f8988af46b56216a6f0daf95ab8c9bdb57400 |
| SHA256 | fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba |
| SHA512 | 720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3 |
memory/1924-63-0x0000000000400000-0x000000000041F000-memory.dmp
memory/1924-66-0x0000000000400000-0x000000000041F000-memory.dmp
memory/1924-67-0x0000000000400000-0x000000000041F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-03-08 15:49
Reported
2022-03-08 15:52
Platform
win10v2004-en-20220113
Max time kernel
129s
Max time network
152s
Command Line
Signatures
NirSoft MailPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Nirsoft
| Description | Indicator | Process | Target |
| 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 |
Reads user/profile data of web browsers
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4140 set thread context of 820 | N/A | C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe | C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe |
| PID 4140 set thread context of 2800 | N/A | C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe | C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe
"C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe"
C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\33w0KjZOZz.ini"
C:\Users\Admin\AppData\Local\Temp\70f9b8047dc6aa80015da0fc8523f48d578a878485ddd1e24344a634ed47bc92.exe
/scomma "C:\Users\Admin\AppData\Local\Temp\zi8yPkR59M.ini"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | honda-hcamjlg.com | udp |
| US | 8.8.8.8:53 | oneocsp.microsoft.com | udp |
| US | 204.79.197.203:80 | oneocsp.microsoft.com | tcp |
| US | 8.8.8.8:53 | www.microsoft.com | udp |
| NL | 104.85.1.163:80 | www.microsoft.com | tcp |
Files
memory/820-132-0x0000000000400000-0x0000000000453000-memory.dmp
memory/820-134-0x0000000000400000-0x0000000000453000-memory.dmp
memory/820-135-0x0000000000400000-0x0000000000453000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\33w0KjZOZz.ini
| MD5 | d1ea279fb5559c020a1b4137dc4de237 |
| SHA1 | db6f8988af46b56216a6f0daf95ab8c9bdb57400 |
| SHA256 | fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba |
| SHA512 | 720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3 |
memory/2800-137-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2800-139-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2800-140-0x0000000000400000-0x000000000041F000-memory.dmp