| File name: | Payload.exe |
| Full analysis: | https://app.any.run/tasks/20b6a578-3e7c-419e-bfb9-311e6bd82ea6 |
| 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: | December 13, 2024, 20:59:17 |
| OS: | Windows 10 Professional (build: 19045, 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: | B0F4CCDBA9627855A58B6F2F1673A3DA |
| SHA1: | BB39BBD34084EFDF4D0A994FBA6419819D68C766 |
| SHA256: | EF33AF6A7F06D5DAE8DD1DA0412B795E1222BFD6CE447614C5CAC912BCD3374D |
| SSDEEP: | 49152:EPEcsT90z2NkvSCmRf7uY1+DVlYZ+hHjGmt/3Dgf0P9SCD42pUekNM7W92Nf7FsX:G2NkKCmRf7uY1+DVlYZ+hHaIDgZgcsa |
MALICIOUS
Changes the autorun value in the registry
- Payload.exe (PID: 6204)
- Client.exe (PID: 6244)
QUASAR has been detected (YARA)
- Client.exe (PID: 6244)
SUSPICIOUS
Executable content was dropped or overwritten
- Payload.exe (PID: 6204)
Starts itself from another location
- Payload.exe (PID: 6204)
Reads security settings of Internet Explorer
- Client.exe (PID: 6244)
Connects to unusual port
- Client.exe (PID: 6244)
INFO
Reads the computer name
- Payload.exe (PID: 6204)
- Client.exe (PID: 6244)
Creates files or folders in the user directory
- Payload.exe (PID: 6204)
Checks supported languages
- Payload.exe (PID: 6204)
- Client.exe (PID: 6244)
Reads Environment values
- Payload.exe (PID: 6204)
- Client.exe (PID: 6244)
Reads the machine GUID from the registry
- Payload.exe (PID: 6204)
- Client.exe (PID: 6244)
The process uses the downloaded file
- Payload.exe (PID: 6204)
Reads the software policy settings
- Client.exe (PID: 6244)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
Quasar
(PID) Process(6244) Client.exe
Version1.4.1
C2 (2)ukrainian.zapto.org:5552
Sub_DirSubDir
Install_NameClient.exe
Mutex951dc75d-80db-463e-bcd9-8d5e9db51950
StartupQuasar Client Startup
TagOffice04
LogDirLogs
SignatureSIHQHI9wawX7IYgU4gD2uJw+8kXSowINekjQpNJJ1uq2kqlUl6EjK6xtVKezLKBollaRuAmMbDEx3qaT6bkBQlq9MFS7oGlculNLkgWJmUHD1snxVbJz1zlbZ1+AnuKDjLCbptVaU4CK4RONVuby5w6oeYg/dq5v4YZz3bHgUbwPUU8nqm/FYKf5iDPT42oC2t6scmWfofciJNFvR617kHiBT7f1BHFZnWbZjdRZEc4Q4XY3ghH3nR/NZGalI4nircZONAmTaphJIo30UiMzZD7iAnz4Gpaw7CS1k9eYmhtF...
CertificateMIIE9DCCAtygAwIBAgIQALnI2G5kMFs5x3ZUG5dNxzANBgkqhkiG9w0BAQ0FADAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMCAXDTI0MTIxMTIwNDgzNloYDzk5OTkxMjMxMjM1OTU5WjAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAyT2g+3mQEmW2jtnuIS9W96TfaPTU1RZdDVU2UV/xHJjmGYZYxmmljnFdpSPxhwjakDbJrJKP...
TRiD
| .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) |
EXIF
EXE
| 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: | 3261440 |
| InitializedDataSize: | 3584 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x31e3ee |
| 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 |
Total processes
120
Monitored processes
3
Malicious processes
2
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
| |||||||||||||||
| 6204 | "C:\Users\admin\Desktop\Payload.exe" | C:\Users\admin\Desktop\Payload.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Quasar Client Exit code: 3 Version: 1.4.1 Modules
| |||||||||||||||
| 6244 | "C:\Users\admin\AppData\Roaming\SubDir\Client.exe" | C:\Users\admin\AppData\Roaming\SubDir\Client.exe | Payload.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Quasar Client Version: 1.4.1 Modules
Quasar(PID) Process(6244) Client.exe Version1.4.1 C2 (2)ukrainian.zapto.org:5552 Sub_DirSubDir Install_NameClient.exe Mutex951dc75d-80db-463e-bcd9-8d5e9db51950 StartupQuasar Client Startup TagOffice04 LogDirLogs SignatureSIHQHI9wawX7IYgU4gD2uJw+8kXSowINekjQpNJJ1uq2kqlUl6EjK6xtVKezLKBollaRuAmMbDEx3qaT6bkBQlq9MFS7oGlculNLkgWJmUHD1snxVbJz1zlbZ1+AnuKDjLCbptVaU4CK4RONVuby5w6oeYg/dq5v4YZz3bHgUbwPUU8nqm/FYKf5iDPT42oC2t6scmWfofciJNFvR617kHiBT7f1BHFZnWbZjdRZEc4Q4XY3ghH3nR/NZGalI4nircZONAmTaphJIo30UiMzZD7iAnz4Gpaw7CS1k9eYmhtF... CertificateMIIE9DCCAtygAwIBAgIQALnI2G5kMFs5x3ZUG5dNxzANBgkqhkiG9w0BAQ0FADAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMCAXDTI0MTIxMTIwNDgzNloYDzk5OTkxMjMxMjM1OTU5WjAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAyT2g+3mQEmW2jtnuIS9W96TfaPTU1RZdDVU2UV/xHJjmGYZYxmmljnFdpSPxhwjakDbJrJKP... | |||||||||||||||
Total events
3 805
Read events
3 803
Write events
2
Delete events
0
Modification events
| (PID) Process: | (6204) Payload.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | Quasar Client Startup |
Value: "C:\Users\admin\AppData\Roaming\SubDir\Client.exe" | |||
| (PID) Process: | (6244) Client.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | Quasar Client Startup |
Value: "C:\Users\admin\AppData\Roaming\SubDir\Client.exe" | |||
Executable files
1
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 6204 | Payload.exe | C:\Users\admin\AppData\Roaming\SubDir\Client.exe | executable | |
MD5:B0F4CCDBA9627855A58B6F2F1673A3DA | SHA256:EF33AF6A7F06D5DAE8DD1DA0412B795E1222BFD6CE447614C5CAC912BCD3374D | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
5
TCP/UDP connections
61
DNS requests
13
Threats
6
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
4712 | MoUsoCoreWorker.exe | GET | 200 | 2.16.241.19:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
3220 | svchost.exe | GET | 200 | 88.221.169.152:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
3220 | svchost.exe | GET | 200 | 2.16.241.19:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
4712 | MoUsoCoreWorker.exe | GET | 200 | 88.221.169.152:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
4008 | RUXIMICS.exe | GET | 200 | 88.221.169.152:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.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 |
|---|---|---|---|---|---|---|
3220 | svchost.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 192.168.100.255:138 | — | — | — | whitelisted |
— | — | 2.23.209.187:443 | www.bing.com | Akamai International B.V. | GB | whitelisted |
4712 | MoUsoCoreWorker.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
4008 | RUXIMICS.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
3220 | svchost.exe | 2.16.241.19:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
4712 | MoUsoCoreWorker.exe | 2.16.241.19:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
3220 | svchost.exe | 88.221.169.152:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
4008 | RUXIMICS.exe | 88.221.169.152:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
4712 | MoUsoCoreWorker.exe | 88.221.169.152:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
www.bing.com |
| whitelisted |
google.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
ukrainian.zapto.org |
| unknown |
self.events.data.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2192 | svchost.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.zapto .org |
— | — | Domain Observed Used for C2 Detected | ET MALWARE Observed Malicious SSL Cert (Quasar CnC) |
2192 | svchost.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.zapto .org |
2192 | svchost.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.zapto .org |
2192 | svchost.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.zapto .org |
2192 | svchost.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.zapto .org |