Analysis Overview
SHA256
656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f
Threat Level: Shows suspicious behavior
The file 656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f 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
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-06 21:47
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-06 21:47
Reported
2024-04-06 21:49
Platform
win7-20240220-en
Max time kernel
149s
Max time network
121s
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-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1992 wrote to memory of 2224 | N/A | C:\Users\Admin\AppData\Local\Temp\656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f.exe | C:\Windows\microsofthelp.exe |
| PID 1992 wrote to memory of 2224 | N/A | C:\Users\Admin\AppData\Local\Temp\656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f.exe | C:\Windows\microsofthelp.exe |
| PID 1992 wrote to memory of 2224 | N/A | C:\Users\Admin\AppData\Local\Temp\656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f.exe | C:\Windows\microsofthelp.exe |
| PID 1992 wrote to memory of 2224 | N/A | C:\Users\Admin\AppData\Local\Temp\656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f.exe
"C:\Users\Admin\AppData\Local\Temp\656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/1992-0-0x0000000000400000-0x0000000000402000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | b9fb2d539b472530046f6725ff1db1f9 |
| SHA1 | 0c1db7b2e280c697e7595403ca5488a2fde6077f |
| SHA256 | d1477d930f1086f1a5771cd5f07acbe450d0a7262e488315124669a1afed54e0 |
| SHA512 | 06ddddbb90ed851eb0962a08fd4824e717ef8d796d80c11c4bb54cd125631c50ec94dee17472426b8f421b29a823bc715df9a6cd39a0aa434e8ed54f8ef8ce4d |
memory/1992-3-0x0000000000220000-0x0000000000222000-memory.dmp
memory/2224-8-0x0000000000400000-0x0000000000402000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-06 21:47
Reported
2024-04-06 21:49
Platform
win10v2004-20240319-en
Max time kernel
151s
Max time network
151s
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-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2052 wrote to memory of 1420 | N/A | C:\Users\Admin\AppData\Local\Temp\656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f.exe | C:\Windows\microsofthelp.exe |
| PID 2052 wrote to memory of 1420 | N/A | C:\Users\Admin\AppData\Local\Temp\656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f.exe | C:\Windows\microsofthelp.exe |
| PID 2052 wrote to memory of 1420 | N/A | C:\Users\Admin\AppData\Local\Temp\656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f.exe
"C:\Users\Admin\AppData\Local\Temp\656d295e68695517914de279cc91e877a1382481615e3f809686aed94a96922f.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4080 --field-trial-handle=2244,i,11986678581565715302,451159359636456336,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| DE | 172.217.18.106:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 106.18.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.71.91.104.in-addr.arpa | udp |
| US | 13.107.246.64:443 | tcp | |
| US | 8.8.8.8:53 | 202.77.24.184.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
Files
memory/2052-0-0x0000000000400000-0x0000000000402000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | b9fb2d539b472530046f6725ff1db1f9 |
| SHA1 | 0c1db7b2e280c697e7595403ca5488a2fde6077f |
| SHA256 | d1477d930f1086f1a5771cd5f07acbe450d0a7262e488315124669a1afed54e0 |
| SHA512 | 06ddddbb90ed851eb0962a08fd4824e717ef8d796d80c11c4bb54cd125631c50ec94dee17472426b8f421b29a823bc715df9a6cd39a0aa434e8ed54f8ef8ce4d |