Analysis Overview
SHA256
5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95
Threat Level: Known bad
The file 5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95 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 23:48
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-02-26 23:48
Reported
2025-02-26 23:51
Platform
win7-20241010-en
Max time kernel
149s
Max time network
19s
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\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.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\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1492 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.exe | C:\Windows\microsofthelp.exe |
| PID 1492 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.exe | C:\Windows\microsofthelp.exe |
| PID 1492 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.exe | C:\Windows\microsofthelp.exe |
| PID 1492 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.exe
"C:\Users\Admin\AppData\Local\Temp\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/1492-0-0x0000000000400000-0x000000000040E000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | dee538b4b7bb54c57dbbde2279d3453c |
| SHA1 | fcd1c75fd1ab87880c16ae2a3ceb461504a2da15 |
| SHA256 | 936551fb68eac38bbbd2708440b0f43718fbfc672ec6ab67faaca15518cde118 |
| SHA512 | 83906d8517ce6e4c97cd8ccd801287577ccd430b6f8eda28c0ef4e461079d6fd7ad16fe7bff0a8d05f4f58f7ffca7e4274790597a6e8f66689ae2ab4b2fdc762 |
memory/1492-8-0x0000000000400000-0x000000000040E000-memory.dmp
memory/1492-3-0x0000000000220000-0x000000000022E000-memory.dmp
memory/2616-10-0x0000000000400000-0x000000000040E000-memory.dmp
memory/2616-12-0x0000000000400000-0x000000000040E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-02-26 23:48
Reported
2025-02-26 23:51
Platform
win10v2004-20250217-en
Max time kernel
149s
Max time network
142s
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-1-5-21-3181990009-820930284-137514597-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.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\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.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 2276 wrote to memory of 2180 | N/A | C:\Users\Admin\AppData\Local\Temp\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.exe | C:\Windows\microsofthelp.exe |
| PID 2276 wrote to memory of 2180 | N/A | C:\Users\Admin\AppData\Local\Temp\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.exe | C:\Windows\microsofthelp.exe |
| PID 2276 wrote to memory of 2180 | N/A | C:\Users\Admin\AppData\Local\Temp\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.exe
"C:\Users\Admin\AppData\Local\Temp\5cc49234d51df387b800e016cef07a70188f1c13bd8530083e2a566b40384c95.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 | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| 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/2276-0-0x0000000000400000-0x000000000040E000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | dee538b4b7bb54c57dbbde2279d3453c |
| SHA1 | fcd1c75fd1ab87880c16ae2a3ceb461504a2da15 |
| SHA256 | 936551fb68eac38bbbd2708440b0f43718fbfc672ec6ab67faaca15518cde118 |
| SHA512 | 83906d8517ce6e4c97cd8ccd801287577ccd430b6f8eda28c0ef4e461079d6fd7ad16fe7bff0a8d05f4f58f7ffca7e4274790597a6e8f66689ae2ab4b2fdc762 |
memory/2276-5-0x0000000000400000-0x000000000040E000-memory.dmp
memory/2180-7-0x0000000000400000-0x000000000040E000-memory.dmp