Analysis Overview
SHA256
0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7
Threat Level: Known bad
The file 0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7 was found to be: Known bad.
Malicious Activity Summary
BlihanStealer
Blihanstealer family
Executes dropped EXE
Deletes itself
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 19:11
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-02-26 19:11
Reported
2025-02-26 19:13
Platform
win7-20240729-en
Max time kernel
149s
Max time network
121s
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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.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\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2016 wrote to memory of 2564 | N/A | C:\Users\Admin\AppData\Local\Temp\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.exe | C:\Windows\microsofthelp.exe |
| PID 2016 wrote to memory of 2564 | N/A | C:\Users\Admin\AppData\Local\Temp\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.exe | C:\Windows\microsofthelp.exe |
| PID 2016 wrote to memory of 2564 | N/A | C:\Users\Admin\AppData\Local\Temp\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.exe | C:\Windows\microsofthelp.exe |
| PID 2016 wrote to memory of 2564 | N/A | C:\Users\Admin\AppData\Local\Temp\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.exe
"C:\Users\Admin\AppData\Local\Temp\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/2016-0-0x0000000000400000-0x000000000040E000-memory.dmp
memory/2016-7-0x0000000000400000-0x000000000040E000-memory.dmp
memory/2564-9-0x0000000000400000-0x000000000040E000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 1a93dc47ec40eb51478071b01b600637 |
| SHA1 | beb6350591732a7658a538508f28fe737a8003fd |
| SHA256 | f2298556d4ae0150e7258cffee5a731769a4b35a069beed668ae7f07474520f2 |
| SHA512 | e51263914e298e8fad0cafff3f5414ecbb373438aae633bef48d8738821119acae5de79a85a0c19e0935c30be42a747aed6953faf1582335378c833780d9bcd0 |
memory/2564-11-0x0000000000400000-0x000000000040E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-02-26 19:11
Reported
2025-02-26 19:13
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-1-5-21-100612193-3312047696-905266872-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\HidePlugin.dll | C:\Windows\microsofthelp.exe | N/A |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\microsofthelp.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2712 wrote to memory of 4656 | N/A | C:\Users\Admin\AppData\Local\Temp\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.exe | C:\Windows\microsofthelp.exe |
| PID 2712 wrote to memory of 4656 | N/A | C:\Users\Admin\AppData\Local\Temp\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.exe | C:\Windows\microsofthelp.exe |
| PID 2712 wrote to memory of 4656 | N/A | C:\Users\Admin\AppData\Local\Temp\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.exe
"C:\Users\Admin\AppData\Local\Temp\0134f92d338561958877d48fa9497edf47f33b94392cf0b70bc682460f762fa7.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 150.171.28.10:443 | tcp | |
| US | 150.171.28.10:443 | tcp | |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| 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 | 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 | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
Files
memory/2712-0-0x0000000000400000-0x000000000040E000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 1a93dc47ec40eb51478071b01b600637 |
| SHA1 | beb6350591732a7658a538508f28fe737a8003fd |
| SHA256 | f2298556d4ae0150e7258cffee5a731769a4b35a069beed668ae7f07474520f2 |
| SHA512 | e51263914e298e8fad0cafff3f5414ecbb373438aae633bef48d8738821119acae5de79a85a0c19e0935c30be42a747aed6953faf1582335378c833780d9bcd0 |
memory/2712-7-0x0000000000400000-0x000000000040E000-memory.dmp
memory/4656-6-0x0000000000400000-0x000000000040E000-memory.dmp
memory/4656-8-0x0000000000400000-0x000000000040E000-memory.dmp