| File name: | certificado2024.rar |
| Full analysis: | https://app.any.run/tasks/598d137c-bd96-4f8a-a147-f0e446929ceb |
| Verdict: | Malicious activity |
| Analysis date: | April 16, 2024, 20:40:21 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/x-rar |
| File info: | RAR archive data, v5 |
| MD5: | DD498F703860AA5430AD8CC769183C18 |
| SHA1: | 5D5284ECDCADEEF0084CB91CDE1D506DFAB960B1 |
| SHA256: | BB0576EE9672AAC31413A7C5912BC25E44AC10A0B8F1882F455C1DA83845D16F |
| SSDEEP: | 768:TOkLyZWtZcwMyOvxOv9gPGkXQGkXggmg3o7ohow8wXqpY:TOkOY0wmvcvjf3C0h5wY |
MALICIOUS
Unusual connection from system programs
- rundll32.exe (PID: 1820)
SUSPICIOUS
Reads security settings of Internet Explorer
- WinRAR.exe (PID: 2308)
- WinRAR.exe (PID: 2344)
Reads settings of System Certificates
- rundll32.exe (PID: 3272)
- rundll32.exe (PID: 1820)
Uses RUNDLL32.EXE to load library
- WinRAR.exe (PID: 2344)
Application launched itself
- WinRAR.exe (PID: 2308)
Adds/modifies Windows certificates
- rundll32.exe (PID: 1820)
Reads the Internet Settings
- rundll32.exe (PID: 1820)
INFO
Reads security settings of Internet Explorer
- rundll32.exe (PID: 3272)
- rundll32.exe (PID: 1820)
Reads the software policy settings
- rundll32.exe (PID: 3272)
- rundll32.exe (PID: 1820)
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) |
Total processes
40
Monitored processes
5
Malicious processes
4
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1820 | "C:\Windows\system32\rundll32.exe" cryptext.dll,CryptExtOpenCER C:\Users\admin\AppData\Local\Temp\Rar$DIa2344.37951\AAACertificateServices.crt | C:\Windows\System32\rundll32.exe | WinRAR.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2308 | "C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\AppData\Local\Temp\certificado2024.rar | C:\Program Files\WinRAR\WinRAR.exe | — | explorer.exe | |||||||||||
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Version: 5.91.0 Modules
| |||||||||||||||
| 2344 | "C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\AppData\Local\Temp\Rar$DIa2308.35638\2168915203.zip | C:\Program Files\WinRAR\WinRAR.exe | — | WinRAR.exe | |||||||||||
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Version: 5.91.0 Modules
| |||||||||||||||
| 3192 | "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\admin\AppData\Local\Temp\Rar$DIa2344.37470\My_CA_Bundle.ca-bundle | C:\Windows\System32\rundll32.exe | — | WinRAR.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3272 | "C:\Windows\system32\rundll32.exe" cryptext.dll,CryptExtOpenCER C:\Users\admin\AppData\Local\Temp\Rar$DIa2344.36882\AAACertificateServices.crt | C:\Windows\System32\rundll32.exe | — | WinRAR.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
14 238
Read events
14 154
Write events
75
Delete events
9
Modification events
| (PID) Process: | (2308) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes |
| Operation: | write | Name: | ShellExtBMP |
Value: | |||
| (PID) Process: | (2308) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes |
| Operation: | write | Name: | ShellExtIcon |
Value: | |||
| (PID) Process: | (2308) WinRAR.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2308) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 3 |
Value: C:\Users\admin\Desktop\phacker.zip | |||
| (PID) Process: | (2308) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 2 |
Value: C:\Users\admin\Desktop\Win7-KB3191566-x86.zip | |||
| (PID) Process: | (2308) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 1 |
Value: C:\Users\admin\Desktop\curl-8.5.0_1-win32-mingw.zip | |||
| (PID) Process: | (2308) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\AppData\Local\Temp\certificado2024.rar | |||
| (PID) Process: | (2308) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (2308) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (2308) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
Executable files
0
Suspicious files
2
Text files
3
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2308 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$DIa2308.35638\2168915203.zip | compressed | |
MD5:— | SHA256:— | |||
| 2344 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$DIa2344.36882\AAACertificateServices.crt | text | |
MD5:— | SHA256:— | |||
| 2344 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$DIa2344.37470\My_CA_Bundle.ca-bundle | text | |
MD5:— | SHA256:— | |||
| 2344 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$DIa2344.37951\AAACertificateServices.crt | text | |
MD5:— | SHA256:— | |||
| 1820 | rundll32.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 | binary | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
5
DNS requests
2
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
1820 | rundll32.exe | GET | 304 | 2.23.81.40:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?8046d414a664c5c7 | DE | — | — | unknown |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
— | — | 224.0.0.252:5355 | — | — | — | unknown |
1080 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
1820 | rundll32.exe | 2.23.81.40:80 | ctldl.windowsupdate.com | Akamai International B.V. | DE | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
dns.msftncsi.com |
| shared |
ctldl.windowsupdate.com |
| whitelisted |