| download: | ExpressGen.rar |
| Full analysis: | https://app.any.run/tasks/71430c0f-88a0-44e2-bced-16859d4ebaec |
| Verdict: | Malicious activity |
| Threats: | Quasar is a very popular RAT in the world thanks to its code being available in open-source. This malware can be used to control the victim’s computer remotely. |
| Analysis date: | January 10, 2019, 19:08:36 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-rar |
| File info: | RAR archive data, v5 |
| MD5: | 49D834E1F9F733C9F3F7256216BA2B1F |
| SHA1: | E453E7750A283DF64D1D9EDB73FDABAD3BF77B6F |
| SHA256: | 3CB2802B37C8060A433FAFF56BC1E92EB19DF44E514F94679A430FDBEB6844C6 |
| SSDEEP: | 12288:9e5XWBtzrbtQhLmjGbDIOGj8qrf5rp/irs09ijfPe5XWBtzrD:9KWnIsCIoqr2sHjHKWnD |
MALICIOUS
Loads dropped or rewritten executable
- SearchProtocolHost.exe (PID: 1376)
Application was dropped or rewritten from another process
- ExpressGen.exe (PID: 3564)
- WindowsDefender.exe (PID: 2860)
- ExpressGen.exe (PID: 460)
- WindowsDefender.exe (PID: 3508)
Changes the autorun value in the registry
- Regasm.exe (PID: 2836)
QUASAR was detected
- Regasm.exe (PID: 2836)
SUSPICIOUS
Executable content was dropped or overwritten
- WinRAR.exe (PID: 2852)
- ExpressGen.exe (PID: 3564)
- ExpressGen.exe (PID: 460)
Checks for external IP
- Regasm.exe (PID: 2836)
Starts itself from another location
- ExpressGen.exe (PID: 3564)
- ExpressGen.exe (PID: 460)
Creates files in the user directory
- Regasm.exe (PID: 2836)
Connects to unusual port
- Regasm.exe (PID: 2836)
INFO
No info indicators.
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
39
Monitored processes
10
Malicious processes
4
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 336 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe | — | WindowsDefender.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Exit code: 0 Version: 4.6.1055.0 built by: NETFXREL2 Modules
| |||||||||||||||
| 460 | "C:\Users\admin\Desktop\ExpressGen.exe" | C:\Users\admin\Desktop\ExpressGen.exe | explorer.exe | ||||||||||||
User: admin Company: Update Integrity Level: MEDIUM Description: Update.exe Exit code: 0 Version: 1.1.1.0 Modules
| |||||||||||||||
| 1376 | "C:\Windows\system32\SearchProtocolHost.exe" Global\UsGthrFltPipeMssGthrPipe6_ Global\UsGthrCtrlFltPipeMssGthrPipe6 1 -2147483646 "Software\Microsoft\Windows Search" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)" "C:\ProgramData\Microsoft\Search\Data\Temp\usgthrsvc" "DownLevelDaemon" | C:\Windows\System32\SearchProtocolHost.exe | — | SearchIndexer.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Microsoft Windows Search Protocol Host Exit code: 0 Version: 7.00.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2784 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe | — | WindowsDefender.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Exit code: 0 Version: 4.6.1055.0 built by: NETFXREL2 Modules
| |||||||||||||||
| 2836 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe | ExpressGen.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Exit code: 0 Version: 4.6.1055.0 built by: NETFXREL2 Modules
| |||||||||||||||
| 2852 | "C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\ExpressGen.rar" | C:\Program Files\WinRAR\WinRAR.exe | explorer.exe | ||||||||||||
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Exit code: 0 Version: 5.60.0 Modules
| |||||||||||||||
| 2860 | "C:\Users\admin\AppData\Local\Temp\WindowsDefender.exe" | C:\Users\admin\AppData\Local\Temp\WindowsDefender.exe | — | ExpressGen.exe | |||||||||||
User: admin Company: Update Integrity Level: MEDIUM Description: Update.exe Exit code: 0 Version: 1.1.1.0 Modules
| |||||||||||||||
| 3460 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe | — | ExpressGen.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Exit code: 0 Version: 4.6.1055.0 built by: NETFXREL2 Modules
| |||||||||||||||
| 3508 | "C:\Users\admin\AppData\Local\Temp\WindowsDefender.exe" | C:\Users\admin\AppData\Local\Temp\WindowsDefender.exe | — | ExpressGen.exe | |||||||||||
User: admin Company: Update Integrity Level: MEDIUM Description: Update.exe Exit code: 0 Version: 1.1.1.0 Modules
| |||||||||||||||
| 3564 | "C:\Users\admin\Desktop\ExpressGen.exe" | C:\Users\admin\Desktop\ExpressGen.exe | explorer.exe | ||||||||||||
User: admin Company: Update Integrity Level: MEDIUM Description: Update.exe Exit code: 0 Version: 1.1.1.0 Modules
| |||||||||||||||
Total events
1 600
Read events
1 556
Write events
44
Delete events
0
Modification events
| (PID) Process: | (2852) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes |
| Operation: | write | Name: | ShellExtBMP |
Value: | |||
| (PID) Process: | (2852) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes |
| Operation: | write | Name: | ShellExtIcon |
Value: | |||
| (PID) Process: | (2852) WinRAR.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2852) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\AppData\Local\Temp\ExpressGen.rar | |||
| (PID) Process: | (2852) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (2852) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (2852) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
| (PID) Process: | (2852) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | mtime |
Value: 100 | |||
| (PID) Process: | (2852) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\DialogEditHistory\ExtrPath |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\Desktop | |||
| (PID) Process: | (2852) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\MainWin |
| Operation: | write | Name: | Placement |
Value: 2C0000000000000001000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF42000000420000000204000037020000 | |||
Executable files
6
Suspicious files
1
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2852 | WinRAR.exe | C:\Users\admin\Desktop\ExpressGen.exe | executable | |
MD5:— | SHA256:— | |||
| 2836 | Regasm.exe | C:\Users\admin\AppData\Roaming\Logs\01-10-2019 | binary | |
MD5:— | SHA256:— | |||
| 3564 | ExpressGen.exe | C:\Users\admin\AppData\Local\Temp\WindowsDefender.exe | executable | |
MD5:— | SHA256:— | |||
| 460 | ExpressGen.exe | C:\Users\admin\AppData\Local\Temp\WindowsDefender.exe | executable | |
MD5:— | SHA256:— | |||
| 2852 | WinRAR.exe | C:\Users\admin\Desktop\xNet.dll | executable | |
MD5:612080028164B12939751DCCCBB68D4A | SHA256:E96030FDDAF7E78401567EE82480AD75EE48D3556199A3F85C0EC669EDAC2EF4 | |||
| 2852 | WinRAR.exe | C:\Users\admin\Desktop\MetroFramework.dll | executable | |
MD5:44538B311E9EC2BCF0A6452702628D99 | SHA256:BAF326F52D39155D722465947F4CC67E6E90CFD0F89954EAB959568E9BC342AA | |||
| 2852 | WinRAR.exe | C:\Users\admin\Desktop\DeathByCaptcha.dll | executable | |
MD5:612080028164B12939751DCCCBB68D4A | SHA256:E96030FDDAF7E78401567EE82480AD75EE48D3556199A3F85C0EC669EDAC2EF4 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
2
DNS requests
1
Threats
5
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2836 | Regasm.exe | GET | 200 | 185.194.141.58:80 | http://ip-api.com/json/ | DE | text | 300 b | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2836 | Regasm.exe | 185.194.141.58:80 | ip-api.com | netcup GmbH | DE | unknown |
2836 | Regasm.exe | 193.56.28.121:5431 | — | — | — | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
ip-api.com |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2836 | Regasm.exe | Potential Corporate Privacy Violation | ET POLICY External IP Lookup ip-api.com |
2836 | Regasm.exe | A Network Trojan was detected | MALWARE [PTsecurity] Quasar 1.3 RAT IP Lookup ip-api.com (HTTP headeer) |
2836 | Regasm.exe | A Network Trojan was detected | MALWARE [PTsecurity] Quasar RAT |
2836 | Regasm.exe | A Network Trojan was detected | MALWARE [PTsecurity] Quasar RAT |
1 ETPRO signatures available at the full report