| File name: | Client-built.exe |
| Full analysis: | https://app.any.run/tasks/a761a2a3-6ff0-43f3-902d-eb098ae9349e |
| 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: | May 19, 2025, 04:46:54 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows, 3 sections |
| MD5: | BB44C9F1AB8FBB15B5D6F59D63272C96 |
| SHA1: | C4E405AE6EB3695B3B15426187756B0AD31C866C |
| SHA256: | 34D3F2737994C284707F9CA78B87BB9BBA8896E7CA2355DA7777342BEB71E8F0 |
| SSDEEP: | 49152:hfEcsT90z2NkvSCmRf7uY1+DVlYZ+hHjGmt/3Dg9mT9xgV9tkZmlt+crReujV/PZ:x2NkKCmRf7uY1+DVlYZ+hHaIDghcVW |
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (56.7) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (21.3) |
| .scr | | | Windows screen saver (10.1) |
| .dll | | | Win32 Dynamic Link Library (generic) (5) |
| .exe | | | Win32 Executable (generic) (3.4) |
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2023:03:12 16:16:39+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 3261952 |
| InitializedDataSize: | 3584 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x31e42e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.4.1.0 |
| ProductVersionNumber: | 1.4.1.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | Quasar Client |
| FileVersion: | 1.4.1 |
| InternalName: | Client.exe |
| LegalCopyright: | Copyright © MaxXor 2023 |
| LegalTrademarks: | - |
| OriginalFileName: | Client.exe |
| ProductName: | Quasar |
| ProductVersion: | 1.4.1 |
| AssemblyVersion: | 1.4.1.0 |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7468 | "C:\Users\admin\Desktop\Client-built.exe" | C:\Users\admin\Desktop\Client-built.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Quasar Client Exit code: 3 Version: 1.4.1 Modules
| |||||||||||||||
| 7504 | "C:\Users\admin\AppData\Roaming\SubDir\Virgin.exe" | C:\Users\admin\AppData\Roaming\SubDir\Virgin.exe | Client-built.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Quasar Client Version: 1.4.1 Modules
Quasar(PID) Process(7504) Virgin.exe Version1.4.1 C2 (2)176.63.22.93:4782 Sub_DirSubDir Install_NameVirgin.exe Mutexa8c9cc02-7855-4abc-8557-e91f373e2c3b StartupQuasar Client Startup TagClient LogDirLogs SignatureQMXTQCw5/UN63CamIgHG69bIC3SOvKRCkyg7sz+D/iHTd+yPqZI8YRV/3V7SwMQpkqbd8LfsJ7RyRfxhFR2M21QKNv6aLDsftoTuVd5EfSc4szAbi13qirLiAEnMsXN1cDqT0+Tw8NE6606sJrZxPTQjwW3zg134jPCBFhSoLBaKVHK8ZAWVrLaLo0RIevwoRF1tkzN28yL3d/QzZturEkbr04b9DB55obQGxqBWBH+IHSzuVjR4xsPby4ymJcFtpodGdjbm91gqkXsDPptmcn5RfFnWLRKWneOQUAgSThWP... CertificateMIIE9DCCAtygAwIBAgIQAIq7EOK94/H/lPNccgl+uTANBgkqhkiG9w0BAQ0FADAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMCAXDTI1MDUxMTE0MjUyOFoYDzk5OTkxMjMxMjM1OTU5WjAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAjAwyJfnFPrgW/lWDOkhrLLUZnNqW0ljkQMLgLBu4hX54fJn+4V2bqDDwhVUOq48pLx+kEp4E... | |||||||||||||||
| 7972 | C:\WINDOWS\System32\slui.exe -Embedding | C:\Windows\System32\slui.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Activation Client Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 7468 | Client-built.exe | C:\Users\admin\AppData\Roaming\SubDir\Virgin.exe | executable | |
MD5:BB44C9F1AB8FBB15B5D6F59D63272C96 | SHA256:34D3F2737994C284707F9CA78B87BB9BBA8896E7CA2355DA7777342BEB71E8F0 | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
6724 | RUXIMICS.exe | GET | 200 | 2.20.245.137:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
7792 | SIHClient.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20Update%20Signing%20CA%202.1.crl | unknown | — | — | whitelisted |
6724 | RUXIMICS.exe | GET | 200 | 23.219.150.101:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
7792 | SIHClient.exe | GET | 200 | 23.216.77.28:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut_2010-06-23.crl | unknown | — | — | whitelisted |
7792 | 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 |
7792 | SIHClient.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Signing%20CA%202.1.crl | unknown | — | — | whitelisted |
7792 | SIHClient.exe | GET | 200 | 23.216.77.28:80 | http://crl.microsoft.com/pki/crl/products/MicTimStaPCA_2010-07-01.crl | unknown | — | — | whitelisted |
7792 | SIHClient.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20Update%20Signing%20CA%202.2.crl | unknown | — | — | whitelisted |
7792 | SIHClient.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Signing%20CA%202.2.crl | unknown | — | — | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
6724 | RUXIMICS.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
— | — | 172.211.123.248:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
6544 | svchost.exe | 20.190.160.2:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
6724 | RUXIMICS.exe | 2.20.245.137:80 | crl.microsoft.com | Akamai International B.V. | NL | whitelisted |
6724 | RUXIMICS.exe | 23.219.150.101:80 | www.microsoft.com | AKAMAI-AS | CL | whitelisted |
7504 | Virgin.exe | 176.63.22.93:4782 | — | Vodafone Hungary Ltd. | HU | malicious |
2104 | svchost.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
3216 | svchost.exe | 172.211.123.248:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
google.com |
| whitelisted |
login.live.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |
activation-v2.sls.microsoft.com |
| whitelisted |
nexusrules.officeapps.live.com |
| whitelisted |