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:
quasar
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

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.
  • MALICIOUS

    • QUASAR has been detected (YARA)

      • Virgin.exe (PID: 7504)
  • SUSPICIOUS

    • Starts itself from another location

      • Client-built.exe (PID: 7468)
    • Reads security settings of Internet Explorer

      • Virgin.exe (PID: 7504)
    • Executable content was dropped or overwritten

      • Client-built.exe (PID: 7468)
    • Connects to unusual port

      • Virgin.exe (PID: 7504)
    • There is functionality for taking screenshot (YARA)

      • Virgin.exe (PID: 7504)
  • INFO

    • Checks supported languages

      • Client-built.exe (PID: 7468)
      • Virgin.exe (PID: 7504)
    • Reads the machine GUID from the registry

      • Client-built.exe (PID: 7468)
      • Virgin.exe (PID: 7504)
    • Reads the computer name

      • Client-built.exe (PID: 7468)
      • Virgin.exe (PID: 7504)
    • Creates files or folders in the user directory

      • Client-built.exe (PID: 7468)
    • Reads Environment values

      • Virgin.exe (PID: 7504)
      • Client-built.exe (PID: 7468)
    • Checks proxy server information

      • slui.exe (PID: 7972)
    • Reads the software policy settings

      • slui.exe (PID: 7972)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

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...
No Malware configuration.

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: 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
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
127
Monitored processes
3
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start client-built.exe #QUASAR virgin.exe slui.exe

Process information

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
Images
c:\users\admin\desktop\client-built.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
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
Images
c:\users\admin\appdata\roaming\subdir\virgin.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
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...
7972C:\WINDOWS\System32\slui.exe -EmbeddingC:\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
Images
c:\windows\system32\slui.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\user32.dll
Total events
4 132
Read events
4 132
Write events
0
Delete events
0

Modification events

No data
Executable files
1
Suspicious files
0
Text files
0
Unknown types
0

Dropped files

PID
Process
Filename
Type
7468Client-built.exeC:\Users\admin\AppData\Roaming\SubDir\Virgin.exeexecutable
MD5:BB44C9F1AB8FBB15B5D6F59D63272C96
SHA256:34D3F2737994C284707F9CA78B87BB9BBA8896E7CA2355DA7777342BEB71E8F0
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
9
TCP/UDP connections
47
DNS requests
16
Threats
0

HTTP requests

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
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

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

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 51.104.136.2
  • 51.124.78.146
whitelisted
client.wns.windows.com
  • 172.211.123.248
  • 172.211.123.250
whitelisted
google.com
  • 216.58.206.46
whitelisted
login.live.com
  • 20.190.160.2
  • 20.190.160.65
  • 20.190.160.128
  • 20.190.160.130
  • 20.190.160.17
  • 20.190.160.131
  • 20.190.160.67
  • 20.190.160.4
whitelisted
crl.microsoft.com
  • 2.20.245.137
  • 2.20.245.139
  • 23.216.77.28
  • 23.216.77.42
  • 23.216.77.20
whitelisted
www.microsoft.com
  • 23.219.150.101
  • 23.35.229.160
whitelisted
slscr.update.microsoft.com
  • 52.149.20.212
whitelisted
fe3cr.delivery.mp.microsoft.com
  • 13.95.31.18
whitelisted
activation-v2.sls.microsoft.com
  • 20.83.72.98
whitelisted
nexusrules.officeapps.live.com
  • 52.111.227.14
whitelisted

Threats

No threats detected
No debug info