Analysis Overview
SHA256
1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07
Threat Level: Known bad
The file 1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07 was found to be: Known bad.
Malicious Activity Summary
BlihanStealer
Blihanstealer family
Deletes itself
Executes dropped EXE
Adds Run key to start application
Drops file in Windows directory
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-02-26 20:01
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-02-26 20:01
Reported
2025-02-26 20:03
Platform
win7-20241010-en
Max time kernel
149s
Max time network
20s
Command Line
Signatures
BlihanStealer
Blihanstealer family
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\microsofthelp.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\microsofthelp.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe | N/A |
| File created | C:\Windows\HidePlugin.dll | C:\Windows\microsofthelp.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\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2124 wrote to memory of 3012 | N/A | C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe | C:\Windows\microsofthelp.exe |
| PID 2124 wrote to memory of 3012 | N/A | C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe | C:\Windows\microsofthelp.exe |
| PID 2124 wrote to memory of 3012 | N/A | C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe | C:\Windows\microsofthelp.exe |
| PID 2124 wrote to memory of 3012 | N/A | C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe
"C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/2124-0-0x0000000000400000-0x000000000040E000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | cd1eefb2a6547427c5eaa029372491b6 |
| SHA1 | b7e73144e8a8c7d8acc2cc35c501d2f0bb81f10f |
| SHA256 | f9949e8d80ce3e6a6254ec4ca192d1eb219d886bd10f4592e8836c2f9f2251aa |
| SHA512 | 117da656f96ee06e3855c17c8dfc2c38f0748f4acda87863b6776e27c909005d19ef058c21c9189366f8bafd3fae6876a963c794fe5c785b67e186076142ade0 |
memory/2124-8-0x0000000000220000-0x000000000022E000-memory.dmp
memory/2124-7-0x0000000000400000-0x000000000040E000-memory.dmp
memory/3012-11-0x0000000000400000-0x000000000040E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-02-26 20:01
Reported
2025-02-26 20:03
Platform
win10v2004-20250217-en
Max time kernel
149s
Max time network
151s
Command Line
Signatures
BlihanStealer
Blihanstealer family
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\microsofthelp.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\microsofthelp.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe | N/A |
| File created | C:\Windows\HidePlugin.dll | C:\Windows\microsofthelp.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\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\microsofthelp.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4072 wrote to memory of 2144 | N/A | C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe | C:\Windows\microsofthelp.exe |
| PID 4072 wrote to memory of 2144 | N/A | C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe | C:\Windows\microsofthelp.exe |
| PID 4072 wrote to memory of 2144 | N/A | C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe
"C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
| Country | Destination | Domain | Proto |
| 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 |
Files
memory/4072-0-0x0000000000400000-0x000000000040E000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | cd1eefb2a6547427c5eaa029372491b6 |
| SHA1 | b7e73144e8a8c7d8acc2cc35c501d2f0bb81f10f |
| SHA256 | f9949e8d80ce3e6a6254ec4ca192d1eb219d886bd10f4592e8836c2f9f2251aa |
| SHA512 | 117da656f96ee06e3855c17c8dfc2c38f0748f4acda87863b6776e27c909005d19ef058c21c9189366f8bafd3fae6876a963c794fe5c785b67e186076142ade0 |
memory/4072-6-0x0000000000400000-0x000000000040E000-memory.dmp
memory/2144-7-0x0000000000400000-0x000000000040E000-memory.dmp