File name:

Client-builthijj.exe

Full analysis: https://app.any.run/tasks/ff108471-4ba6-4e14-8b3a-e2e7ca4efe0a
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.

Malware Trends Tracker     >>>
Analysis date: August 01, 2025, 03:43:24
OS: Windows 10 Professional (build: 19044, 64 bit)
Tags:
auto-reg
quasar
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows, 3 sections
MD5:

39B7843854E17F882E91B3BF6ABCB7EC

SHA1:

8818C7BE61D1261E59AE952A12A4AD6A7F6A8CA9

SHA256:

21ABE236643466F3FF17449BDC3EFA7D1BD7CFBC88EB2C2B5992206E75915EA3

SSDEEP:

49152:7NgGOhX02hD2nPiLq3A6770DODdl/rADxXhCk/3DgFouIR9j7JoOXOXVttguzvx7:K2nP6q3A6770DODdl/rADxRLDgRg6H

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

    • Changes the autorun value in the registry

      • Client-builthijj.exe (PID: 2972)
      • Client.exe (PID: 2140)

    • QUASAR has been detected (YARA)

      • Client.exe (PID: 2140)

  • SUSPICIOUS

    • Starts itself from another location

      • Client-builthijj.exe (PID: 2972)

    • Executable content was dropped or overwritten

      • Client-builthijj.exe (PID: 2972)

    • There is functionality for taking screenshot (YARA)

      • Client.exe (PID: 2140)

  • INFO

    • Reads the computer name

      • Client-builthijj.exe (PID: 2972)
      • Client.exe (PID: 2140)
      • Client.exe (PID: 4856)

    • Checks supported languages

      • Client-builthijj.exe (PID: 2972)
      • Client.exe (PID: 2140)
      • Client.exe (PID: 4856)

    • Creates files or folders in the user directory

      • Client-builthijj.exe (PID: 2972)

    • Launching a file from a Registry key

      • Client-builthijj.exe (PID: 2972)
      • Client.exe (PID: 2140)

    • Reads Environment values

      • Client-builthijj.exe (PID: 2972)
      • Client.exe (PID: 2140)
      • Client.exe (PID: 4856)

    • Reads the machine GUID from the registry

      • Client-builthijj.exe (PID: 2972)
      • Client.exe (PID: 2140)
      • Client.exe (PID: 4856)

    • Manual execution by a user

      • Client.exe (PID: 4856)

    • Checks proxy server information

      • slui.exe (PID: 6876)

    • Reads the software policy settings

      • slui.exe (PID: 6876)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

Quasar

(PID) Process(2140) Client.exe
Version1.4.1
C2 (2)127.0.0.1:80
Sub_DirSubDir
Install_NameClient.exe
Mutexed642976-5c58-45aa-8568-cf42602a4f6a
Startupdir
TagAnimationReuploader
LogDirLogs
SignatureqtLHgm1tg9GyBCp2+O2d8t5rAVbHybMbZxKZYp6jBIXOfiw2hAr4p9AcJ3PjA6tyDcIJOqA9wSLqr0X/360sZbLonxbXFFqh9IZQwXj6MPAl+bgLkihXUGFhw4AV1ToM21Qul+tD5SIay7hTwwmv/CdcaLFklE7BAYnheZNWUumY8KFRHsYNrZzn9S8VDSXRN2CRh01WrgRKjKWwbwY5UlvtBT7usRb1MXg/k6V6nMv9K7SxK5MuWXBz8R4IaQQ6jtGDMOKinn/6ceBYVOAX5atzF3E69EUzRqQxp+1QwLff...
CertificateMIIE9DCCAtygAwIBAgIQAIJwD64ehwB9J3toB1vJiTANBgkqhkiG9w0BAQ0FADAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMCAXDTI1MDczMDAyNDY0NVoYDzk5OTkxMjMxMjM1OTU5WjAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAvuVJCy1sLBTBC+bPn32yupmlRy8eV5EMCCaB+8XLKdISJjLLlfjzcHN7F3MOv9jD+LIA3DMe...
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: 0x31e3fe
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
132
Monitored processes
4
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start client-builthijj.exe #QUASAR client.exe client.exe no specs slui.exe

Process information

PID
CMD
Path
Indicators
Parent process
2140"C:\Users\admin\AppData\Roaming\SubDir\Client.exe"C:\Users\admin\AppData\Roaming\SubDir\Client.exe
Client-builthijj.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Quasar Client
Version:
1.4.1
Modules
Images
c:\users\admin\appdata\roaming\subdir\client.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(2140) Client.exe
Version1.4.1
C2 (2)127.0.0.1:80
Sub_DirSubDir
Install_NameClient.exe
Mutexed642976-5c58-45aa-8568-cf42602a4f6a
Startupdir
TagAnimationReuploader
LogDirLogs
SignatureqtLHgm1tg9GyBCp2+O2d8t5rAVbHybMbZxKZYp6jBIXOfiw2hAr4p9AcJ3PjA6tyDcIJOqA9wSLqr0X/360sZbLonxbXFFqh9IZQwXj6MPAl+bgLkihXUGFhw4AV1ToM21Qul+tD5SIay7hTwwmv/CdcaLFklE7BAYnheZNWUumY8KFRHsYNrZzn9S8VDSXRN2CRh01WrgRKjKWwbwY5UlvtBT7usRb1MXg/k6V6nMv9K7SxK5MuWXBz8R4IaQQ6jtGDMOKinn/6ceBYVOAX5atzF3E69EUzRqQxp+1QwLff...
CertificateMIIE9DCCAtygAwIBAgIQAIJwD64ehwB9J3toB1vJiTANBgkqhkiG9w0BAQ0FADAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMCAXDTI1MDczMDAyNDY0NVoYDzk5OTkxMjMxMjM1OTU5WjAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAvuVJCy1sLBTBC+bPn32yupmlRy8eV5EMCCaB+8XLKdISJjLLlfjzcHN7F3MOv9jD+LIA3DMe...
2972"C:\Users\admin\Desktop\Client-builthijj.exe" C:\Users\admin\Desktop\Client-builthijj.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-builthijj.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
4856"C:\Users\admin\AppData\Roaming\SubDir\Client.exe"C:\Users\admin\AppData\Roaming\SubDir\Client.exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Quasar Client
Exit code:
2
Version:
1.4.1
Modules
Images
c:\users\admin\appdata\roaming\subdir\client.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.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
6876C:\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
4 446
Read events
4 444
Write events
2
Delete events
0

Modification events

(PID) Process:(2972) Client-builthijj.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:dir
Value:
"C:\Users\admin\AppData\Roaming\SubDir\Client.exe"
(PID) Process:(2140) Client.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:dir
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
2972Client-builthijj.exeC:\Users\admin\AppData\Roaming\SubDir\Client.exeexecutable
MD5:39B7843854E17F882E91B3BF6ABCB7EC
SHA256:21ABE236643466F3FF17449BDC3EFA7D1BD7CFBC88EB2C2B5992206E75915EA3
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
43
TCP/UDP connections
49
DNS requests
16
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
5944
MoUsoCoreWorker.exe
GET
200
23.216.77.6:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
—
—
GET
200
23.216.77.6:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
1268
svchost.exe
GET
200
23.216.77.6:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
—
—
POST
200
20.190.160.128:443
https://login.live.com/RST2.srf
unknown
xml
1.24 Kb
whitelisted
5944
MoUsoCoreWorker.exe
GET
200
23.52.120.96:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
1268
svchost.exe
GET
200
23.52.120.96:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
—
—
GET
200
23.52.120.96:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
—
—
POST
400
20.190.160.128:443
https://login.live.com/ppsecure/deviceaddcredential.srf
unknown
text
203 b
whitelisted
—
—
POST
400
40.126.32.138:443
https://login.live.com/ppsecure/deviceaddcredential.srf
unknown
text
203 b
whitelisted
—
—
POST
400
20.190.160.22:443
https://login.live.com/ppsecure/deviceaddcredential.srf
unknown
text
203 b
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
—
—
51.104.136.2:443
—
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4
System
192.168.100.255:137
—
—
—
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
1268
svchost.exe
23.216.77.6:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
5944
MoUsoCoreWorker.exe
23.216.77.6:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
—
—
23.216.77.6:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
1268
svchost.exe
23.52.120.96:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
5944
MoUsoCoreWorker.exe
23.52.120.96:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
—
—
23.52.120.96:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
—
—
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted

DNS requests

Domain
IP
Reputation
crl.microsoft.com
  • 23.216.77.6
  • 23.216.77.28
whitelisted
google.com
  • 142.250.186.174
whitelisted
www.microsoft.com
  • 23.52.120.96
  • 95.101.149.131
whitelisted
settings-win.data.microsoft.com
  • 51.124.78.146
whitelisted
login.live.com
  • 40.126.31.128
  • 20.190.159.73
  • 20.190.159.64
  • 40.126.31.73
  • 40.126.31.67
  • 40.126.31.129
  • 20.190.159.131
  • 40.126.31.130
whitelisted
slscr.update.microsoft.com
  • 20.165.94.63
whitelisted
fe3cr.delivery.mp.microsoft.com
  • 13.85.23.206
whitelisted
self.events.data.microsoft.com
  • 20.42.65.90
whitelisted
activation-v2.sls.microsoft.com
  • 40.91.76.224
whitelisted
x1.c.lencr.org
  • 104.76.201.34
whitelisted

Threats

No threats detected
No debug info
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Reports
Client-builthijj.exe