Analysis Overview
SHA256
0a7d70527905957f57ef2b03eedceb93a55dfc626e6eee86bf9b7b184af1a390
Threat Level: Known bad
The file e0b8ddf70d7ab115a8bfa5b49f285a5d was found to be: Known bad.
Malicious Activity Summary
ISR Stealer
ISR Stealer payload
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Writes to the Master Boot Record (MBR)
Suspicious use of SetThreadContext
Enumerates physical storage devices
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-27 04:03
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-27 04:03
Reported
2024-03-27 04:06
Platform
win7-20240319-en
Max time kernel
118s
Max time network
122s
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 |
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2228 set thread context of 2328 | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe |
| PID 2328 set thread context of 2552 | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe
"C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe"
C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe
"C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe"
C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe
"C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe"
Network
Files
memory/2328-2-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2328-4-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2328-6-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2328-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2328-12-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2328-14-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2552-17-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2552-19-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2552-21-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2552-25-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2328-26-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2552-32-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2552-33-0x0000000000400000-0x0000000000414000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-27 04:03
Reported
2024-03-27 04:06
Platform
win10v2004-20240226-en
Max time kernel
147s
Max time network
155s
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 |
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4436 set thread context of 1420 | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe |
| PID 1420 set thread context of 1696 | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe
"C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe"
C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe
"C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe"
C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe
"C:\Users\Admin\AppData\Local\Temp\e0b8ddf70d7ab115a8bfa5b49f285a5d.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| N/A | 224.0.0.251:5353 | udp | |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.241.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 176.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 174.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 224.162.46.104.in-addr.arpa | udp |
Files
memory/1420-2-0x0000000000400000-0x000000000041E000-memory.dmp
memory/1420-4-0x0000000000400000-0x000000000041E000-memory.dmp
memory/1696-7-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1696-9-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1420-11-0x0000000000400000-0x000000000041E000-memory.dmp
memory/1696-14-0x0000000000400000-0x0000000000414000-memory.dmp