File name:

updater.exe

Full analysis: https://app.any.run/tasks/099f75f5-517f-4746-9970-68e6b27fdc77
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: July 05, 2025, 23:44:23
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:

9889307EBFAE369150D0A59EEBD16D1A

SHA1:

CA6413343C5905981C67BFFC018968227BD03E1C

SHA256:

C06A605267082E5E569B11FBC8C9ABCFDDAB2B5862C9FDDD3F0F5D65EC1D9444

SSDEEP:

49152:09gGOhX02hD2nPiLq3A6770DODdl/rADxXhCk/3DgOccK6gesCv4MRT1LsOOwrp0:z2nP6q3A6770DODdl/rADxRLDgpCzIz

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

      • updater.exe (PID: 1044)
      • Client.exe (PID: 1160)

    • QUASAR has been detected (YARA)

      • Client.exe (PID: 1160)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • updater.exe (PID: 1044)

    • Starts itself from another location

      • updater.exe (PID: 1044)

    • Connects to unusual port

      • Client.exe (PID: 1160)

    • There is functionality for taking screenshot (YARA)

      • Client.exe (PID: 1160)

  • INFO

    • Checks supported languages

      • updater.exe (PID: 1044)
      • Client.exe (PID: 1160)
      • Client.exe (PID: 640)

    • Reads Environment values

      • updater.exe (PID: 1044)
      • Client.exe (PID: 1160)
      • Client.exe (PID: 640)

    • Creates files or folders in the user directory

      • updater.exe (PID: 1044)

    • Reads the computer name

      • updater.exe (PID: 1044)
      • Client.exe (PID: 1160)
      • Client.exe (PID: 640)

    • Reads the machine GUID from the registry

      • updater.exe (PID: 1044)
      • Client.exe (PID: 1160)
      • Client.exe (PID: 640)

    • Launching a file from a Registry key

      • updater.exe (PID: 1044)
      • Client.exe (PID: 1160)

    • Manual execution by a user

      • Client.exe (PID: 640)

    • Checks proxy server information

      • slui.exe (PID: 684)

    • Reads the software policy settings

      • slui.exe (PID: 684)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

Quasar

(PID) Process(1160) Client.exe
Version1.4.1
C2 (2)90.133.225.228:4782
Sub_DirSubDir
Install_NameClient.exe
Mutex6170f7db-a39c-4826-bf16-da051b8238d3
StartupClientStartup
TagSysX
LogDirLogs
SignatureF3ldbJHg0uKBxpjJThq+Qu3FfI4hJJzzjAZR0S1xNs3ZMcJH+lNIkXUyTxvkmzEMWL1I0OR77VBx2TOAHgrZEfGxtHwRZplm3D+1SgSbY7klxrA6zaVCQQUlLpXQX2tQwTBwyWr/7D1JBXNmWuC2/bxpPj83c0mSFQVYoXs+uFPGqvEef1TrqwpgKZMUoVBZH+dzinutF/q1AeMUK1g9OX0fb6kBfhudmeUN9TPrEIdwB8PdqtU+cKCf/bAMSzBzXUjM9/b6MhutewlgIYjBHLjOFFQKCT+7OM9JJttBxXYA...
CertificateMIIE9DCCAtygAwIBAgIQAKEiA0U83B5yipMhK6M3AzANBgkqhkiG9w0BAQ0FADAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMCAXDTI1MDYyODAwNDgzMloYDzk5OTkxMjMxMjM1OTU5WjAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAlyOl/L4Wc7emqwK7WV82v2PR1DVJqOcHtcYxSRCtfwVdYAW3A2/rCiAaZUES3Mm23n6EGwwL...
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: 3261440
InitializedDataSize: 3584
UninitializedDataSize: -
EntryPoint: 0x31e3ce
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
135
Monitored processes
4
Malicious processes
2
Suspicious processes
0

Behavior graph

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

Process information

PID
CMD
Path
Indicators
Parent process
640"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
684C:\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
1044"C:\Users\admin\Desktop\updater.exe" C:\Users\admin\Desktop\updater.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Quasar Client
Exit code:
3
Version:
1.4.1
Modules
Images
c:\users\admin\desktop\updater.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
1160"C:\Users\admin\AppData\Roaming\SubDir\Client.exe"C:\Users\admin\AppData\Roaming\SubDir\Client.exe
updater.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(1160) Client.exe
Version1.4.1
C2 (2)90.133.225.228:4782
Sub_DirSubDir
Install_NameClient.exe
Mutex6170f7db-a39c-4826-bf16-da051b8238d3
StartupClientStartup
TagSysX
LogDirLogs
SignatureF3ldbJHg0uKBxpjJThq+Qu3FfI4hJJzzjAZR0S1xNs3ZMcJH+lNIkXUyTxvkmzEMWL1I0OR77VBx2TOAHgrZEfGxtHwRZplm3D+1SgSbY7klxrA6zaVCQQUlLpXQX2tQwTBwyWr/7D1JBXNmWuC2/bxpPj83c0mSFQVYoXs+uFPGqvEef1TrqwpgKZMUoVBZH+dzinutF/q1AeMUK1g9OX0fb6kBfhudmeUN9TPrEIdwB8PdqtU+cKCf/bAMSzBzXUjM9/b6MhutewlgIYjBHLjOFFQKCT+7OM9JJttBxXYA...
CertificateMIIE9DCCAtygAwIBAgIQAKEiA0U83B5yipMhK6M3AzANBgkqhkiG9w0BAQ0FADAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMCAXDTI1MDYyODAwNDgzMloYDzk5OTkxMjMxMjM1OTU5WjAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAlyOl/L4Wc7emqwK7WV82v2PR1DVJqOcHtcYxSRCtfwVdYAW3A2/rCiAaZUES3Mm23n6EGwwL...
Total events
4 174
Read events
4 172
Write events
2
Delete events
0

Modification events

(PID) Process:(1160) Client.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:ClientStartup
Value:
"C:\Users\admin\AppData\Roaming\SubDir\Client.exe"
(PID) Process:(1044) updater.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:ClientStartup
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
1044updater.exeC:\Users\admin\AppData\Roaming\SubDir\Client.exeexecutable
MD5:9889307EBFAE369150D0A59EEBD16D1A
SHA256:C06A605267082E5E569B11FBC8C9ABCFDDAB2B5862C9FDDD3F0F5D65EC1D9444
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
8
TCP/UDP connections
26
DNS requests
7
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
1268
svchost.exe
GET
200
23.55.104.172:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
7064
RUXIMICS.exe
GET
200
23.55.104.172:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
5944
MoUsoCoreWorker.exe
GET
200
2.23.246.101:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
5944
MoUsoCoreWorker.exe
GET
200
23.55.104.172:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
1268
svchost.exe
GET
200
2.23.246.101:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
7064
RUXIMICS.exe
GET
200
2.23.246.101:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
—
—
POST
500
40.91.76.224:443
https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail
unknown
xml
512 b
whitelisted
—
—
POST
500
40.91.76.224:443
https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail
unknown
xml
512 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
5944
MoUsoCoreWorker.exe
51.104.136.2:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4
System
192.168.100.255:137
—
—
—
whitelisted
1268
svchost.exe
51.104.136.2:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
7064
RUXIMICS.exe
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
1268
svchost.exe
23.55.104.172:80
crl.microsoft.com
Akamai International B.V.
US
whitelisted
7064
RUXIMICS.exe
23.55.104.172:80
crl.microsoft.com
Akamai International B.V.
US
whitelisted
5944
MoUsoCoreWorker.exe
23.55.104.172:80
crl.microsoft.com
Akamai International B.V.
US
whitelisted
1268
svchost.exe
2.23.246.101:80
www.microsoft.com
Ooredoo Q.S.C.
QA
whitelisted
5944
MoUsoCoreWorker.exe
2.23.246.101:80
www.microsoft.com
Ooredoo Q.S.C.
QA
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 51.104.136.2
whitelisted
google.com
  • 142.250.186.78
whitelisted
crl.microsoft.com
  • 23.55.104.172
whitelisted
www.microsoft.com
  • 2.23.246.101
whitelisted
activation-v2.sls.microsoft.com
  • 20.83.72.98
whitelisted
self.events.data.microsoft.com
  • 13.89.178.26
whitelisted

Threats

No threats detected
No debug info
Interactive malware hunting service ANY.RUN
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Reports
updater.exe