| File name: | a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5 |
| Full analysis: | https://app.any.run/tasks/a712657f-9a42-45ce-b4b6-42d3ff92ed74 |
| 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: | April 29, 2025, 09:17:25 |
| 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: | 877B6F54CC162886869C665FB55BE9E4 |
| SHA1: | 4097999538E154C37B9ACD40921B279749D62496 |
| SHA256: | A76E07E94DC79D6D45D1CE5E22EA9915B52AD14533E521484B5B5B7E824702A5 |
| SSDEEP: | 6144:9kjnf1OJi6f+6xdp4NDnJRtHTDUtWbg8841Y2a2nUj+dE9:9YtXXfUthO9a2nUqY |
| .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: | 2025:03:05 20:19:39+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 352768 |
| InitializedDataSize: | 3072 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x581be |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.3.0.0 |
| ProductVersionNumber: | 1.3.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | - |
| FileVersion: | 1.3.0.0 |
| InternalName: | Client.exe |
| LegalCopyright: | - |
| LegalTrademarks: | - |
| OriginalFileName: | Client.exe |
| ProductName: | - |
| ProductVersion: | 1.3.0.0 |
| AssemblyVersion: | 1.3.0.0 |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2196 | 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
| |||||||||||||||
| 7332 | "C:\Users\admin\AppData\Local\Temp\a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe" | C:\Users\admin\AppData\Local\Temp\a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Version: 1.3.0.0 Modules
Quasar(PID) Process(7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe Version1.3.0.0 C2 (2)185.246.113.135:1604 Sub_DirSubDir Install_NameClient.exe MutexQSR_MUTEX_1lwMeXPloe4D54kA3Z StartupQuasar Client Startup TagOffice04 LogDirLogs Signature Certificate | |||||||||||||||
| 7380 | C:\WINDOWS\system32\SppExtComObj.exe -Embedding | C:\Windows\System32\SppExtComObj.Exe | — | svchost.exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: KMS Connection Broker Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7412 | "C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEvent | C:\Windows\System32\slui.exe | — | SppExtComObj.Exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows Activation Client Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| (PID) Process: | (7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASAPI32 |
| Operation: | write | Name: | EnableAutoFileTracing |
Value: 0 | |||
| (PID) Process: | (7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: | |||
| (PID) Process: | (7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: | |||
| (PID) Process: | (7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASMANCS |
| Operation: | write | Name: | EnableAutoFileTracing |
Value: 0 | |||
| (PID) Process: | (7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASMANCS |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 7332 | a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | C:\Users\admin\AppData\Roaming\Logs\04-29-2025 | binary | |
MD5:D2971DCC83458DC58F8D1481E689FFBD | SHA256:63EF880D4EFEB1282EA529D84AA4336A1E007ACBC2BDCCF11CBA9654579819AC | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 23.216.77.42:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
6544 | svchost.exe | GET | 200 | 184.30.131.245:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
8100 | SIHClient.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
7332 | a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | GET | 200 | 208.95.112.1:80 | http://ip-api.com/json/ | unknown | — | — | whitelisted |
8100 | 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 |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2104 | svchost.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 23.216.77.42:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
— | — | 23.35.229.160:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
7332 | a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | 208.95.112.1:80 | ip-api.com | TUT-AS | US | whitelisted |
2112 | svchost.exe | 20.73.194.208:443 | 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 |
7332 | a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | 185.246.113.135:1604 | — | Fortr Telekomunikasyon Sanayi Ve Ticaret Limited Sirketi | ES | malicious |
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
ip-api.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |
PID | Process | Class | Message |
|---|---|---|---|
2196 | svchost.exe | Device Retrieving External IP Address Detected | INFO [ANY.RUN] External IP Check (ip-api .com) |
2196 | svchost.exe | Device Retrieving External IP Address Detected | ET INFO External IP Lookup Domain in DNS Lookup (ip-api .com) |
7332 | a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | Device Retrieving External IP Address Detected | ET INFO External IP Lookup ip-api.com |
7332 | a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe | A Network Trojan was detected | ET MALWARE Common RAT Connectivity Check Observed |