| URL: | https://bitly.cx/57jP |
| Full analysis: | https://app.any.run/tasks/574402d6-f522-48ce-8821-c15f443f9065 |
| Verdict: | Malicious activity |
| Threats: | The Arechclient2 malware is a sophisticated .NET-based Remote Access Trojan (RAT) that collects sensitive information, such as browser credentials, from infected computers. It employs various stealth techniques, including Base64 encoding to obscure its code and the ability to pause activities to evade automated security tools. The malware also can adjust Windows Defender settings and uses code injection to manipulate legitimate processes. |
| Analysis date: | May 16, 2025, 19:30:42 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MD5: | CDB7733DC4B619CA84D3CC0A65EB73F7 |
| SHA1: | 63A1EE0B2C69EA20251A993CB0A590AA112DFCD9 |
| SHA256: | F4273A0291481FAD484438B08C51E512FB78857AAFCC6BF9B4F8AB2164FF8435 |
| SSDEEP: | 3:N8bGun:2bPn |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 444 | "C:\Users\admin\AppData\Local\hosttask_HDG\XPFix.exe" "C:\Users\admin\AppData\Local\hosttask_HDG\XPFix.exe" /update | C:\Users\admin\AppData\Local\hosttask_HDG\XPFix.exe | — | EncodeAdvan16.exe | |||||||||||
User: admin Company: 360.cn Integrity Level: MEDIUM Description: 360安全卫士 安全防护中心模块 Exit code: 0 Version: 1, 0, 0, 1013 Modules
| |||||||||||||||
| 472 | "C:\Program Files\Notepad++\notepad++.exe" "C:\Users\admin\Downloads\EncodeAdvan16.exe" | C:\Program Files\Notepad++\notepad++.exe | — | explorer.exe | |||||||||||
User: admin Company: Don HO don.h@free.fr Integrity Level: MEDIUM Description: Notepad++ : a free (GNU) source code editor Exit code: 0 Version: 7.91 Modules
| |||||||||||||||
| 536 | C:\Users\admin\AppData\Local\Temp\MSBuild.exe | C:\Users\admin\AppData\Local\Temp\MSBuild.exe | EncodeAdvan16.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Office Source Engine Version: 14.0.4730.1010 Modules
| |||||||||||||||
| 644 | "C:\Users\admin\AppData\Local\hosttask_HDG\XPFix.exe" "C:\Users\admin\AppData\Local\hosttask_HDG\XPFix.exe" /update | C:\Users\admin\AppData\Local\hosttask_HDG\XPFix.exe | — | EncodeAdvan16.exe | |||||||||||
User: admin Company: 360.cn Integrity Level: MEDIUM Description: 360安全卫士 安全防护中心模块 Exit code: 0 Version: 1, 0, 0, 1013 Modules
| |||||||||||||||
| 672 | "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --mojo-platform-channel-handle=2904 --field-trial-handle=2196,i,15176136625432002082,3429520328775825656,262144 --variations-seed-version /prefetch:8 | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | — | msedge.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: LOW Description: Microsoft Edge Exit code: 0 Version: 122.0.2365.59 Modules
| |||||||||||||||
| 1012 | "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=5140 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.3636 --no-appcompat-clear --gpu-preferences=WAAAAAAAAADoAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAABEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=7008 --field-trial-handle=2196,i,15176136625432002082,3429520328775825656,262144 --variations-seed-version /prefetch:8 | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | — | msedge.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Edge Exit code: 0 Version: 122.0.2365.59 Modules
| |||||||||||||||
| 1164 | "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --no-appcompat-clear --mojo-platform-channel-handle=5976 --field-trial-handle=2196,i,15176136625432002082,3429520328775825656,262144 --variations-seed-version /prefetch:8 | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | — | msedge.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: LOW Description: Microsoft Edge Exit code: 0 Version: 122.0.2365.59 Modules
| |||||||||||||||
| 1188 | "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --mojo-platform-channel-handle=1576 --field-trial-handle=2196,i,15176136625432002082,3429520328775825656,262144 --variations-seed-version /prefetch:8 | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | — | msedge.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: LOW Description: Microsoft Edge Exit code: 0 Version: 122.0.2365.59 Modules
| |||||||||||||||
| 1196 | "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --no-appcompat-clear --mojo-platform-channel-handle=4400 --field-trial-handle=2196,i,15176136625432002082,3429520328775825656,262144 --variations-seed-version /prefetch:8 | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | — | msedge.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: LOW Description: Microsoft Edge Exit code: 0 Version: 122.0.2365.59 Modules
| |||||||||||||||
| 1228 | "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=2204 --field-trial-handle=2196,i,15176136625432002082,3429520328775825656,262144 --variations-seed-version /prefetch:3 | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | msedge.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Edge Version: 122.0.2365.59 Modules
| |||||||||||||||
| (PID) Process: | (5680) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Edge\BLBeacon |
| Operation: | write | Name: | failed_count |
Value: 0 | |||
| (PID) Process: | (5680) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Edge\BLBeacon |
| Operation: | write | Name: | state |
Value: 2 | |||
| (PID) Process: | (5680) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Edge\BLBeacon |
| Operation: | write | Name: | state |
Value: 1 | |||
| (PID) Process: | (5680) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Edge\StabilityMetrics |
| Operation: | write | Name: | user_experience_metrics.stability.exited_cleanly |
Value: 0 | |||
| (PID) Process: | (5680) msedge.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\EdgeUpdate\ClientStateMedium\{56EB18F8-B008-4CBD-B6D2-8C97FE7E9062}\LastWasDefault |
| Operation: | write | Name: | S-1-5-21-1693682860-607145093-2874071422-1001 |
Value: 8EDC361ADC932F00 | |||
| (PID) Process: | (5680) msedge.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\EdgeUpdate\ClientStateMedium\{56EB18F8-B008-4CBD-B6D2-8C97FE7E9062}\LastWasDefault |
| Operation: | write | Name: | S-1-5-21-1693682860-607145093-2874071422-1001 |
Value: 9A89441ADC932F00 | |||
| (PID) Process: | (5680) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowProperties\393996 |
| Operation: | write | Name: | WindowTabManagerFileMappingId |
Value: {F4D4AE95-6E2A-439D-ACB6-3BFCFA8B54B5} | |||
| (PID) Process: | (5680) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowProperties\393996 |
| Operation: | write | Name: | WindowTabManagerFileMappingId |
Value: {112E004A-7A89-43F1-A8D3-A80AED518624} | |||
| (PID) Process: | (5680) msedge.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\EdgeUpdate\ClientStateMedium\{56EB18F8-B008-4CBD-B6D2-8C97FE7E9062}\LastWasDefault |
| Operation: | write | Name: | S-1-5-21-1693682860-607145093-2874071422-1001 |
Value: 0250AA1ADC932F00 | |||
| (PID) Process: | (8172) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached |
| Operation: | write | Name: | {2781761E-28E0-4109-99FE-B9D127C57AFE} {56FFCC30-D398-11D0-B2AE-00A0C908FA49} 0xFFFF |
Value: 0100000000000000F698260A99C6DB01 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 5680 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\parcel_tracking_db\LOG.old~RF10bba1.TMP | — | |
MD5:— | SHA256:— | |||
| 5680 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\commerce_subscription_db\LOG.old~RF10bba1.TMP | — | |
MD5:— | SHA256:— | |||
| 5680 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\parcel_tracking_db\LOG.old | — | |
MD5:— | SHA256:— | |||
| 5680 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\discounts_db\LOG.old~RF10bba1.TMP | — | |
MD5:— | SHA256:— | |||
| 5680 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\discounts_db\LOG.old | — | |
MD5:— | SHA256:— | |||
| 5680 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\EdgePushStorageWithConnectTokenAndKey\LOG.old~RF10bbc0.TMP | — | |
MD5:— | SHA256:— | |||
| 5680 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\EdgePushStorageWithConnectTokenAndKey\LOG.old | — | |
MD5:— | SHA256:— | |||
| 5680 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\commerce_subscription_db\LOG.old | — | |
MD5:— | SHA256:— | |||
| 5680 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\PersistentOriginTrials\LOG.old~RF10bbb1.TMP | — | |
MD5:— | SHA256:— | |||
| 5680 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\PersistentOriginTrials\LOG.old | — | |
MD5:— | SHA256:— | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
5496 | MoUsoCoreWorker.exe | GET | 200 | 23.48.23.147:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
5496 | MoUsoCoreWorker.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
1180 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
6544 | svchost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
— | — | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
1180 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
5244 | svchost.exe | HEAD | 200 | 199.232.214.172:80 | http://msedge.b.tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/9b9f8fb4-8a65-41e4-bda3-5416858f0aeb?P1=1747770960&P2=404&P3=2&P4=CZhltB2ymwvkCvFUnuj%2fpJdvDq5hYOytKQ6PrE9fvvl9H3AI4MTRIkYwmCX81CnsLdi6l%2fx2dGP08eK84X5NhQ%3d%3d | unknown | — | — | whitelisted |
5244 | svchost.exe | GET | 206 | 199.232.214.172:80 | http://msedge.b.tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/9b9f8fb4-8a65-41e4-bda3-5416858f0aeb?P1=1747770960&P2=404&P3=2&P4=CZhltB2ymwvkCvFUnuj%2fpJdvDq5hYOytKQ6PrE9fvvl9H3AI4MTRIkYwmCX81CnsLdi6l%2fx2dGP08eK84X5NhQ%3d%3d | unknown | — | — | whitelisted |
5244 | svchost.exe | GET | 206 | 199.232.214.172:80 | http://msedge.b.tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/9b9f8fb4-8a65-41e4-bda3-5416858f0aeb?P1=1747770960&P2=404&P3=2&P4=CZhltB2ymwvkCvFUnuj%2fpJdvDq5hYOytKQ6PrE9fvvl9H3AI4MTRIkYwmCX81CnsLdi6l%2fx2dGP08eK84X5NhQ%3d%3d | unknown | — | — | whitelisted |
5244 | svchost.exe | GET | 206 | 199.232.214.172:80 | http://msedge.b.tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/9b9f8fb4-8a65-41e4-bda3-5416858f0aeb?P1=1747770960&P2=404&P3=2&P4=CZhltB2ymwvkCvFUnuj%2fpJdvDq5hYOytKQ6PrE9fvvl9H3AI4MTRIkYwmCX81CnsLdi6l%2fx2dGP08eK84X5NhQ%3d%3d | unknown | — | — | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2104 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
5496 | MoUsoCoreWorker.exe | 23.48.23.147:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
5496 | MoUsoCoreWorker.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
— | — | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
7348 | msedge.exe | 188.114.97.3:443 | bitly.cx | — | — | unknown |
7348 | msedge.exe | 13.107.42.16:443 | config.edge.skype.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
5680 | msedge.exe | 239.255.255.250:1900 | — | — | — | whitelisted |
7348 | msedge.exe | 150.171.27.11:443 | edge.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
config.edge.skype.com |
| whitelisted |
bitly.cx |
| unknown |
edge.microsoft.com |
| whitelisted |
business.bing.com |
| whitelisted |
edge-mobile-static.azureedge.net |
| whitelisted |
cromatsfewbears.top |
| malicious |
PID | Process | Class | Message |
|---|---|---|---|
7348 | msedge.exe | Potentially Bad Traffic | ET DNS Query to a *.top domain - Likely Hostile |
536 | MSBuild.exe | A Network Trojan was detected | ET MALWARE Arechclient2 Backdoor/SecTopRAT Related Activity M2 (GET) |
536 | MSBuild.exe | A Network Trojan was detected | ET MALWARE Arechclient2 Backdoor/SecTopRAT Related Activity M3 (GET) |