Analysis Overview
SHA256
1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3
Threat Level: Shows suspicious behavior
The file 1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Deletes itself
Executes dropped EXE
Adds Run key to start application
Drops file in Windows directory
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-09 20:21
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-09 20:21
Reported
2024-11-09 20:24
Platform
win7-20240903-en
Max time kernel
149s
Max time network
120s
Command Line
Signatures
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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.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\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2756 wrote to memory of 2720 | N/A | C:\Users\Admin\AppData\Local\Temp\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.exe | C:\Windows\microsofthelp.exe |
| PID 2756 wrote to memory of 2720 | N/A | C:\Users\Admin\AppData\Local\Temp\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.exe | C:\Windows\microsofthelp.exe |
| PID 2756 wrote to memory of 2720 | N/A | C:\Users\Admin\AppData\Local\Temp\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.exe | C:\Windows\microsofthelp.exe |
| PID 2756 wrote to memory of 2720 | N/A | C:\Users\Admin\AppData\Local\Temp\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.exe
"C:\Users\Admin\AppData\Local\Temp\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/2756-0-0x0000000000400000-0x000000000040E000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | d85cb77ae766a7c7e7506fb81da3dc40 |
| SHA1 | 74685be2a9431ad9c951fc0fbbf70fa35fc6f485 |
| SHA256 | cf28d9cfae7da3305c1d01419aea54224dfb7e578ecc56b1c49a33436391032a |
| SHA512 | 31d19a41efa45935b267d4f2459e4b1497a7483e3fb3267cb72b5e558dbd9a8a6d20588e240f75d587f7166414025da0de49210c19f137fb029726ea988f8d6f |
memory/2756-7-0x00000000001B0000-0x00000000001BE000-memory.dmp
memory/2720-10-0x0000000000400000-0x000000000040E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-09 20:21
Reported
2024-11-09 20:24
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
156s
Command Line
Signatures
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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.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\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.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 3976 wrote to memory of 648 | N/A | C:\Users\Admin\AppData\Local\Temp\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.exe | C:\Windows\microsofthelp.exe |
| PID 3976 wrote to memory of 648 | N/A | C:\Users\Admin\AppData\Local\Temp\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.exe | C:\Windows\microsofthelp.exe |
| PID 3976 wrote to memory of 648 | N/A | C:\Users\Admin\AppData\Local\Temp\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.exe
"C:\Users\Admin\AppData\Local\Temp\1ecdb27c6902e23d4ef5be1a46c3bd76e3e9771116b6e01e38a5232399d218a3.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 70.208.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.179.89.13.in-addr.arpa | udp |
Files
memory/3976-0-0x0000000000400000-0x000000000040E000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | d85cb77ae766a7c7e7506fb81da3dc40 |
| SHA1 | 74685be2a9431ad9c951fc0fbbf70fa35fc6f485 |
| SHA256 | cf28d9cfae7da3305c1d01419aea54224dfb7e578ecc56b1c49a33436391032a |
| SHA512 | 31d19a41efa45935b267d4f2459e4b1497a7483e3fb3267cb72b5e558dbd9a8a6d20588e240f75d587f7166414025da0de49210c19f137fb029726ea988f8d6f |
memory/3976-4-0x0000000000400000-0x000000000040E000-memory.dmp
memory/648-6-0x0000000000400000-0x000000000040E000-memory.dmp