| File name: | Guia57873839193544757604210857499159499458374403557520519721.rar |
| Full analysis: | https://app.any.run/tasks/251a9ccb-e684-4157-b2be-fb63d5d07389 |
| Verdict: | Malicious activity |
| Threats: | Remote access trojans (RATs) are a type of malware that enables attackers to establish complete to partial control over infected computers. Such malicious programs often have a modular design, offering a wide range of functionalities for conducting illicit activities on compromised systems. Some of the most common features of RATs include access to the users’ data, webcam, and keystrokes. This malware is often distributed through phishing emails and links. |
| Analysis date: | December 13, 2024, 21:03:05 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-rar |
| File info: | RAR archive data, v5 |
| MD5: | 28FA1239C907F107E6ACCFF9998F1FB9 |
| SHA1: | BD283AAF728D4CB9429307C51124A1EC0BAE378E |
| SHA256: | 6D7A598AC82D34DB46D8131A69F6196EABAB5347626D45AF438078B80BF7119F |
| SSDEEP: | 49152:03ZnD9ocVIScRVBWMxNdeponM59mQE4gMC/4ZOCwdVJJEMOQpwW3GavC+GDRgnwL:JcFCx7eKnw8cS/0nwIM1GtDRgpnAa8sg |
MALICIOUS
REMCOS has been detected (SURICATA)
- InstallUtil.exe (PID: 7160)
REMCOS has been detected (YARA)
- InstallUtil.exe (PID: 7160)
SUSPICIOUS
Reads security settings of Internet Explorer
- WinRAR.exe (PID: 6524)
- InstallUtil.exe (PID: 7160)
Contacting a server suspected of hosting an CnC
- InstallUtil.exe (PID: 7160)
Connects to unusual port
- InstallUtil.exe (PID: 7160)
There is functionality for taking screenshot (YARA)
- InstallUtil.exe (PID: 7160)
Checks for external IP
- InstallUtil.exe (PID: 7160)
INFO
Manual execution by a user
- InstallUtil.exe (PID: 7160)
- Guia57873839193544757604210857499159499458374403557520519721.exe (PID: 3620)
- InstallUtil.exe (PID: 3544)
The process uses the downloaded file
- WinRAR.exe (PID: 6524)
Reads the computer name
- Guia57873839193544757604210857499159499458374403557520519721.exe (PID: 7116)
- InstallUtil.exe (PID: 7160)
Executable content was dropped or overwritten
- WinRAR.exe (PID: 6524)
Reads the machine GUID from the registry
- Guia57873839193544757604210857499159499458374403557520519721.exe (PID: 7116)
- InstallUtil.exe (PID: 7160)
- Guia57873839193544757604210857499159499458374403557520519721.exe (PID: 3620)
Checks supported languages
- Guia57873839193544757604210857499159499458374403557520519721.exe (PID: 7116)
- InstallUtil.exe (PID: 7160)
- Guia57873839193544757604210857499159499458374403557520519721.exe (PID: 3620)
Checks proxy server information
- InstallUtil.exe (PID: 7160)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .rar | | | RAR compressed archive (v5.0) (61.5) |
|---|---|---|
| .rar | | | RAR compressed archive (gen) (38.4) |
EXIF
ZIP
| FileVersion: | RAR v5 |
|---|
Total processes
128
Monitored processes
6
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2192 | C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s Dnscache | C:\Windows\System32\svchost.exe | services.exe | ||||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Host Process for Windows Services Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6524 | "C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\AppData\Local\Temp\Guia57873839193544757604210857499159499458374403557520519721.rar | C:\Program Files\WinRAR\WinRAR.exe | explorer.exe | ||||||||||||
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Version: 5.91.0 Modules
| |||||||||||||||
| 7116 | "C:\Users\admin\AppData\Local\Temp\Rar$EXb6524.12898\Guia57873839193544757604210857499159499458374403557520519721.exe" | C:\Users\admin\AppData\Local\Temp\Rar$EXb6524.12898\Guia57873839193544757604210857499159499458374403557520519721.exe | — | WinRAR.exe | |||||||||||
User: admin Integrity Level: MEDIUM Description: CANDELA Exit code: 4294967295 Version: 1.0.0.0 Modules
| |||||||||||||||
| 7160 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: .NET Framework installation utility Version: 4.8.9037.0 built by: NET481REL1 Modules
| |||||||||||||||
| 3620 | "C:\Users\admin\Desktop\Guia57873839193544757604210857499159499458374403557520519721.exe" | C:\Users\admin\Desktop\Guia57873839193544757604210857499159499458374403557520519721.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Description: CANDELA Exit code: 4294967295 Version: 1.0.0.0 Modules
| |||||||||||||||
| 3544 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: .NET Framework installation utility Exit code: 2 Version: 4.8.9037.0 built by: NET481REL1 Modules
| |||||||||||||||
Total events
2 641
Read events
2 626
Write events
15
Delete events
0
Modification events
| (PID) Process: | (6524) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\Interface |
| Operation: | write | Name: | ShowPassword |
Value: 0 | |||
| (PID) Process: | (6524) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 3 |
Value: C:\Users\admin\Desktop\preferences.zip | |||
| (PID) Process: | (6524) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 2 |
Value: C:\Users\admin\Desktop\chromium_ext.zip | |||
| (PID) Process: | (6524) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 1 |
Value: C:\Users\admin\Desktop\omni_23_10_2024_.zip | |||
| (PID) Process: | (6524) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\AppData\Local\Temp\Guia57873839193544757604210857499159499458374403557520519721.rar | |||
| (PID) Process: | (6524) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (6524) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (6524) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
| (PID) Process: | (6524) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | mtime |
Value: 100 | |||
| (PID) Process: | (7160) InstallUtil.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\viverrmcgirasol-G9OH11 |
| Operation: | write | Name: | licence |
Value: 235511DFBF3D87AB1E9122AA0A6D3919 | |||
Executable files
2
Suspicious files
2
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 7116 | Guia57873839193544757604210857499159499458374403557520519721.exe | C:\Users\admin\AppData\Roaming\Operations.exe | — | |
MD5:— | SHA256:— | |||
| 7116 | Guia57873839193544757604210857499159499458374403557520519721.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Operations.vbs | text | |
MD5:3450EF399A5C9B7F7A0E3A394BA18FC1 | SHA256:CB4A93BA68CB5553D4D22FBDA17041D573CBEB8739792322974ED4F5235ED0B9 | |||
| 6524 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$EXb6524.12898\Guia57873839193544757604210857499159499458374403557520519721.exe | executable | |
MD5:7719CFC40CB51C009085D279860A2F10 | SHA256:597768D9A6162EAA664D88772EF66A203147A4A76AE6CFDA427D1B9EAF88665F | |||
| 6524 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$DRb6524.13805\Guia57873839193544757604210857499159499458374403557520519721.exe | executable | |
MD5:7719CFC40CB51C009085D279860A2F10 | SHA256:597768D9A6162EAA664D88772EF66A203147A4A76AE6CFDA427D1B9EAF88665F | |||
| 7160 | InstallUtil.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\INetCache\IE\RR3E01RZ\json[1].json | binary | |
MD5:91F6EC7F70629242940860172E13DFA5 | SHA256:711BB9512484FC5A41FFD7360D111876F5ADA013FCB93EAC0D64125494D7BEB9 | |||
| 7160 | InstallUtil.exe | C:\ProgramData\remcos\logs.dat | binary | |
MD5:06DB4756D95EA78274E9B918FE0F9923 | SHA256:FFEE626B896834CB73EE4540D2A666B844167FBDD2E9EFBE2502AFC1521A59E8 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
9
TCP/UDP connections
33
DNS requests
21
Threats
3
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 2.16.241.12:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 88.221.169.152:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
3732 | backgroundTaskHost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D | unknown | — | — | whitelisted |
3732 | backgroundTaskHost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D | unknown | — | — | whitelisted |
6920 | SIHClient.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | unknown | — | — | whitelisted |
7160 | InstallUtil.exe | GET | 200 | 178.237.33.50:80 | http://geoplugin.net/json.gp | unknown | — | — | malicious |
6920 | SIHClient.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4712 | MoUsoCoreWorker.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 2.16.241.12:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
— | — | 88.221.169.152:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
— | — | 2.23.209.179:443 | www.bing.com | Akamai International B.V. | GB | whitelisted |
— | — | 192.168.100.255:138 | — | — | — | whitelisted |
— | — | 192.229.221.95:80 | ocsp.digicert.com | EDGECAST | US | whitelisted |
1176 | svchost.exe | 20.190.159.64:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 184.28.89.167:443 | go.microsoft.com | AKAMAI-AS | US | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
www.bing.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
login.live.com |
| whitelisted |
go.microsoft.com |
| whitelisted |
arc.msn.com |
| whitelisted |
fd.api.iris.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | A Network Trojan was detected | REMOTE [ANY.RUN] REMCOS TLS Connection JA3 Hash |
— | — | Malware Command and Control Activity Detected | ET JA3 Hash - Remcos 3.x/4.x TLS Connection |
1 ETPRO signatures available at the full report