| File name: | Guia16787089459630862835019213430017818401184267324347636354.rar |
| Full analysis: | https://app.any.run/tasks/743204bd-13eb-4373-baaf-d4e9eb9f7b12 |
| 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 14, 2024, 02:14:59 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-rar |
| File info: | RAR archive data, v5 |
| MD5: | 83CCF0B53CCE26F4CD12B1D2A9F4EB44 |
| SHA1: | C4AC48E38F3ABD84F3E0E6486C3C45DF364D18DC |
| SHA256: | BEA58F304401F560795D9041CE182E31A570E136C48DACBAB20214DA0D80AA95 |
| SSDEEP: | 49152:JsXuY8M4VJLQ2qLan6JKoL98b03vBxZoMI0xNgWZWHrfQuXur5GOuLSFA4jWsJBX:JXvPM26UoL98b0ZvZxdZWLYuC5W+FA4L |
MALICIOUS
Create files in the Startup directory
- Guia16787089459630862835019213430017818401184267324347636354.exe (PID: 6308)
REMCOS has been detected (SURICATA)
- InstallUtil.exe (PID: 2792)
REMCOS has been detected (YARA)
- InstallUtil.exe (PID: 2792)
REMCOS has been detected
- InstallUtil.exe (PID: 2792)
SUSPICIOUS
Reads security settings of Internet Explorer
- InstallUtil.exe (PID: 2792)
- WinRAR.exe (PID: 6356)
Executable content was dropped or overwritten
- Guia16787089459630862835019213430017818401184267324347636354.exe (PID: 6308)
Connects to unusual port
- InstallUtil.exe (PID: 2792)
Contacting a server suspected of hosting an CnC
- InstallUtil.exe (PID: 2792)
There is functionality for taking screenshot (YARA)
- InstallUtil.exe (PID: 2792)
Checks for external IP
- InstallUtil.exe (PID: 2792)
INFO
Executable content was dropped or overwritten
- WinRAR.exe (PID: 6356)
Manual execution by a user
- InstallUtil.exe (PID: 2792)
Creates files or folders in the user directory
- Guia16787089459630862835019213430017818401184267324347636354.exe (PID: 6308)
- InstallUtil.exe (PID: 2792)
Checks proxy server information
- InstallUtil.exe (PID: 2792)
Reads the machine GUID from the registry
- InstallUtil.exe (PID: 2792)
- Guia16787089459630862835019213430017818401184267324347636354.exe (PID: 6308)
The process uses the downloaded file
- WinRAR.exe (PID: 6356)
Checks supported languages
- InstallUtil.exe (PID: 2792)
- Guia16787089459630862835019213430017818401184267324347636354.exe (PID: 6308)
Reads the computer name
- InstallUtil.exe (PID: 2792)
- Guia16787089459630862835019213430017818401184267324347636354.exe (PID: 6308)
Creates files in the program directory
- InstallUtil.exe (PID: 2792)
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
4
Malicious processes
1
Suspicious processes
1
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
| |||||||||||||||
| 6356 | "C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\AppData\Local\Temp\Guia16787089459630862835019213430017818401184267324347636354.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
| |||||||||||||||
| 6308 | "C:\Users\admin\AppData\Local\Temp\Rar$EXb6356.34137\Guia16787089459630862835019213430017818401184267324347636354.exe" | C:\Users\admin\AppData\Local\Temp\Rar$EXb6356.34137\Guia16787089459630862835019213430017818401184267324347636354.exe | WinRAR.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: CANDELA Exit code: 4294967295 Version: 1.0.0.0 Modules
| |||||||||||||||
| 2792 | "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
| |||||||||||||||
Total events
2 606
Read events
2 591
Write events
15
Delete events
0
Modification events
| (PID) Process: | (6356) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\Interface |
| Operation: | write | Name: | ShowPassword |
Value: 0 | |||
| (PID) Process: | (6356) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 3 |
Value: C:\Users\admin\Desktop\preferences.zip | |||
| (PID) Process: | (6356) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 2 |
Value: C:\Users\admin\Desktop\chromium_ext.zip | |||
| (PID) Process: | (6356) 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: | (6356) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\AppData\Local\Temp\Guia16787089459630862835019213430017818401184267324347636354.rar | |||
| (PID) Process: | (6356) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (6356) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (6356) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
| (PID) Process: | (6356) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | mtime |
Value: 100 | |||
| (PID) Process: | (2792) InstallUtil.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\viverrmcgirasol-G9OH11 |
| Operation: | write | Name: | exepath |
Value: 9D1F320B82C1256E6D1303D699C3D5B1690882D8024FBA2EBF6A1B5039693CB747A603A6D101787D0065141ECB3E3267A8A914F6DA16546336CD852950FFF87543D6F7E53E62A2130F67419831F60AEB3D7A4B8A4B14C4268E48C15C9E287354A539BA34A7B520C5EB2AE2A7A00D64EBF92810F25E0EC24EE023943C | |||
Executable files
2
Suspicious files
2
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 6308 | Guia16787089459630862835019213430017818401184267324347636354.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Operations.vbs | text | |
MD5:3450EF399A5C9B7F7A0E3A394BA18FC1 | SHA256:CB4A93BA68CB5553D4D22FBDA17041D573CBEB8739792322974ED4F5235ED0B9 | |||
| 6308 | Guia16787089459630862835019213430017818401184267324347636354.exe | C:\Users\admin\AppData\Roaming\Operations.exe | executable | |
MD5:7719CFC40CB51C009085D279860A2F10 | SHA256:597768D9A6162EAA664D88772EF66A203147A4A76AE6CFDA427D1B9EAF88665F | |||
| 6356 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$EXb6356.34137\Guia16787089459630862835019213430017818401184267324347636354.exe | executable | |
MD5:7719CFC40CB51C009085D279860A2F10 | SHA256:597768D9A6162EAA664D88772EF66A203147A4A76AE6CFDA427D1B9EAF88665F | |||
| 2792 | InstallUtil.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\INetCache\IE\RR3E01RZ\json[1].json | binary | |
MD5:8B73CF86D05B6679C7005386238161E1 | SHA256:F5B9FF51770856D3FD1862F4B901F12069357A263DF3740D0CE229C1B3435227 | |||
| 2792 | InstallUtil.exe | C:\ProgramData\remcos\logs.dat | binary | |
MD5:483ADF3ED04069F5A9D63A367275EDF3 | SHA256:956B1976EB59154E77D34AC68AB7A7224CA9D40D56CAFD7A9EF8F1B7653C4784 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
9
TCP/UDP connections
34
DNS requests
20
Threats
3
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2792 | InstallUtil.exe | GET | 200 | 178.237.33.50:80 | http://geoplugin.net/json.gp | unknown | — | — | malicious |
6616 | backgroundTaskHost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D | unknown | — | — | whitelisted |
4712 | MoUsoCoreWorker.exe | GET | 200 | 2.16.164.49:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
5064 | SearchApp.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | unknown | — | — | whitelisted |
6616 | backgroundTaskHost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D | unknown | — | — | whitelisted |
1176 | svchost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
4712 | MoUsoCoreWorker.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
6260 | 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 |
6260 | 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 |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2624 | svchost.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4712 | MoUsoCoreWorker.exe | 2.16.164.49:80 | crl.microsoft.com | Akamai International B.V. | NL | whitelisted |
4712 | MoUsoCoreWorker.exe | 95.101.149.131:80 | www.microsoft.com | Akamai International B.V. | NL | whitelisted |
3976 | svchost.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 |
5064 | SearchApp.exe | 2.23.209.149:443 | www.bing.com | Akamai International B.V. | GB | whitelisted |
1176 | svchost.exe | 40.126.32.134:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
1176 | svchost.exe | 192.229.221.95:80 | ocsp.digicert.com | EDGECAST | US | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
www.bing.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.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