Analysis Overview
SHA256
08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e
Threat Level: Shows suspicious behavior
The file 08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e was found to be: Shows suspicious behavior.
Malicious Activity Summary
Loads dropped DLL
Deletes itself
Executes dropped EXE
Adds Run key to start application
Drops file in Windows directory
Unsigned PE
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-07 18:22
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-07 18:22
Reported
2024-04-07 18:25
Platform
win7-20240221-en
Max time kernel
147s
Max time network
149s
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-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e.exe | N/A |
| File created | C:\Windows\HidePlugin.dll | C:\Windows\microsofthelp.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\microsofthelp.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1936 wrote to memory of 1732 | N/A | C:\Users\Admin\AppData\Local\Temp\08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e.exe | C:\Windows\microsofthelp.exe |
| PID 1936 wrote to memory of 1732 | N/A | C:\Users\Admin\AppData\Local\Temp\08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e.exe | C:\Windows\microsofthelp.exe |
| PID 1936 wrote to memory of 1732 | N/A | C:\Users\Admin\AppData\Local\Temp\08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e.exe | C:\Windows\microsofthelp.exe |
| PID 1936 wrote to memory of 1732 | N/A | C:\Users\Admin\AppData\Local\Temp\08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e.exe
"C:\Users\Admin\AppData\Local\Temp\08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
Files
memory/1936-0-0x0000000000400000-0x000000000040C000-memory.dmp
memory/1936-6-0x0000000000400000-0x000000000040C000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 959affcda29e008b757efbf6a3422687 |
| SHA1 | 8abf02c9b094b20e4d86a882a8b75d66af2a64c0 |
| SHA256 | ff00a841055389e867153f99d0fa1c28c401a9250eca63b60ef58917d00a127b |
| SHA512 | ffb1d606ec6dd37a62e010e0c2d8c434cc674c7cf691efe3ab69d42a3d373372d69ac90c4978cd84682b09b7f7db3ec7ce40e93a684e07edd31f802c2154fc4e |
memory/1936-8-0x0000000000020000-0x000000000002C000-memory.dmp
memory/1732-9-0x0000000000400000-0x000000000040C000-memory.dmp
memory/1732-13-0x0000000010000000-0x0000000010005000-memory.dmp
memory/1732-14-0x0000000000400000-0x000000000040C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-07 18:22
Reported
2024-04-07 18:25
Platform
win10v2004-20240226-en
Max time kernel
163s
Max time network
171s
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 |
Loads dropped DLL
| 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-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e.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\08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\microsofthelp.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 316 wrote to memory of 4400 | N/A | C:\Users\Admin\AppData\Local\Temp\08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e.exe | C:\Windows\microsofthelp.exe |
| PID 316 wrote to memory of 4400 | N/A | C:\Users\Admin\AppData\Local\Temp\08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e.exe | C:\Windows\microsofthelp.exe |
| PID 316 wrote to memory of 4400 | N/A | C:\Users\Admin\AppData\Local\Temp\08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e.exe
"C:\Users\Admin\AppData\Local\Temp\08353cc8f2b15c9ad6a1781b9905ad7a354cf33d0db3f076fd4acc47d583328e.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | 17.143.109.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | 216.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | 67.112.168.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
| US | 8.8.8.8:53 | www.cygdy.com | udp |
Files
memory/316-0-0x0000000000400000-0x000000000040C000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 959affcda29e008b757efbf6a3422687 |
| SHA1 | 8abf02c9b094b20e4d86a882a8b75d66af2a64c0 |
| SHA256 | ff00a841055389e867153f99d0fa1c28c401a9250eca63b60ef58917d00a127b |
| SHA512 | ffb1d606ec6dd37a62e010e0c2d8c434cc674c7cf691efe3ab69d42a3d373372d69ac90c4978cd84682b09b7f7db3ec7ce40e93a684e07edd31f802c2154fc4e |
memory/316-4-0x0000000000400000-0x000000000040C000-memory.dmp
C:\Windows\HidePlugin.dll
| MD5 | 4c0b9970f96300dfa1f45afc7539d35f |
| SHA1 | ebbb4ed2003662d78d1f32e7b6da1b6f504ae711 |
| SHA256 | 4e96660cc8be7171a79755a20860366987547322b3a809e78c9850f14c242262 |
| SHA512 | 579f8787b52bf62a0296d8a24753263201fbc84abec5927033e3c97576f965ead0f8422acd3f7af1345b0df0001b0cd68fa971062e21269f6940cf3e1508ca88 |
memory/4400-10-0x0000000010000000-0x0000000010005000-memory.dmp
memory/4400-11-0x0000000000400000-0x000000000040C000-memory.dmp