Analysis Overview
SHA256
2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a
Threat Level: Known bad
The file 2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a 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 21:22
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-02-26 21:22
Reported
2025-02-26 21:25
Platform
win7-20241023-en
Max time kernel
149s
Max time network
119s
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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.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\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2600 wrote to memory of 1784 | N/A | C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe | C:\Windows\microsofthelp.exe |
| PID 2600 wrote to memory of 1784 | N/A | C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe | C:\Windows\microsofthelp.exe |
| PID 2600 wrote to memory of 1784 | N/A | C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe | C:\Windows\microsofthelp.exe |
| PID 2600 wrote to memory of 1784 | N/A | C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe
"C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/2600-0-0x0000000000400000-0x000000000040E000-memory.dmp
memory/2600-3-0x0000000000220000-0x000000000022E000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 893466742c79b2c111ed11de2d53eaa9 |
| SHA1 | 211402895946beca762bb5d6461bb82ccbe4274e |
| SHA256 | 19aca5eb431dcd29a5be714db9d4723c13aa180b4fdef0a704644c47093c0586 |
| SHA512 | 4393d917cb4fd3231c42f1df569268395dd281e16833c402fcddbf9c32c3b2364e72e7267e553c5176f86099caf2886e2a8976c8f52d3f37b5e05eab695d29df |
memory/1784-10-0x0000000000400000-0x000000000040E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-02-26 21:22
Reported
2025-02-26 21:25
Platform
win10v2004-20250217-en
Max time kernel
149s
Max time network
140s
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\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.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\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.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 2140 wrote to memory of 4908 | N/A | C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe | C:\Windows\microsofthelp.exe |
| PID 2140 wrote to memory of 4908 | N/A | C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe | C:\Windows\microsofthelp.exe |
| PID 2140 wrote to memory of 4908 | N/A | C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe
"C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.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 | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
Files
memory/2140-0-0x0000000000400000-0x000000000040E000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 893466742c79b2c111ed11de2d53eaa9 |
| SHA1 | 211402895946beca762bb5d6461bb82ccbe4274e |
| SHA256 | 19aca5eb431dcd29a5be714db9d4723c13aa180b4fdef0a704644c47093c0586 |
| SHA512 | 4393d917cb4fd3231c42f1df569268395dd281e16833c402fcddbf9c32c3b2364e72e7267e553c5176f86099caf2886e2a8976c8f52d3f37b5e05eab695d29df |
memory/2140-4-0x0000000000400000-0x000000000040E000-memory.dmp
memory/4908-6-0x0000000000400000-0x000000000040E000-memory.dmp