File name:

a.exe

Full analysis: https://app.any.run/tasks/bb3d2d9b-a068-4ebc-bdc3-5d399af388ff
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: March 29, 2025, 22:39:48
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:

B54F96B8246B1B5097D16F12A86DF7CE

SHA1:

B6440C2C6562A649E9820D7DA3D514B8DFA9C27F

SHA256:

339795D7C84249DC6C916947E8ABFE8FE2C84014BAF631CB8E62C5D1F416E418

SSDEEP:

98304:W2nP6q3A6770DODdl/rADxRLDgZE7rzT:pUgo

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

      • a.exe (PID: 6436)

    • QUASAR has been detected (YARA)

      • a.exe (PID: 6436)

  • SUSPICIOUS

    • Process drops legitimate windows executable

      • a.exe (PID: 6436)

    • Starts a Microsoft application from unusual location

      • a.exe (PID: 6436)

    • Reads security settings of Internet Explorer

      • a.exe (PID: 6436)

  • INFO

    • Reads Environment values

      • a.exe (PID: 6436)

    • Checks supported languages

      • a.exe (PID: 6436)

    • Reads the machine GUID from the registry

      • a.exe (PID: 6436)

    • Reads the computer name

      • a.exe (PID: 6436)

    • Reads the software policy settings

      • slui.exe (PID: 6620)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

Quasar

(PID) Process(6436) a.exe
Version1.4.1
C2 (2)mesh.winkycop.store:443
Sub_DirSubDir
Install_Namesvc.exe
Mutex365442ac-2f5a-4bb8-9e6e-775dfbca6c32
Startupsvchost
TagOffice04
LogDirLogs
SignatureaNntLDqOX7pPCwvDqQ/kdupi2ACc+41npWF4ArBnGsMiZIE1wqbw6d1t4/KENRRJF1KM4WZ060aFhaCswQ8QUBtE169qYeiaNnnSAB7LlKo5Y01kLt003MCp05JeeOf9PCVjGyTn30Exa24LUaFfXdLHac81EbCe6uehfBx2vIQn5Xn+fjUck/hie1/D9a4656jTGkdEnrKlLaTI3l7yxBXfj09eRq/OwqPEskpfAhuOdxYxAK1/yuwXVChCThQZy3kO48qiFuZ+UV9GlU2YLSMtLB3B+1AmSgMkNmDZf5t7...
CertificateMIIE9DCCAtygAwIBAgIQAMo1Wnll/L4s/YVkpKkGfTANBgkqhkiG9w0BAQ0FADAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMCAXDTI1MDEyODIyMjY0MFoYDzk5OTkxMjMxMjM1OTU5WjAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAiyK4TXuP3TP+MMVK50JC/8K3lKbL/iP2xzhjnGwhw6Q8GZz9V5pYckaA18RSKKKwAV5/lPip...
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: 10.2261.457.1
ProductVersionNumber: 1.8.3.6
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: Neutral
CharacterSet: Unicode
Comments: -
CompanyName: Microsoft Corporation
FileDescription: Windows Security Process
FileVersion: 10.2261.457.1
InternalName: svchost
LegalCopyright: Microsoft Corporation. All rights reserved
LegalTrademarks: -
OriginalFileName: svchost
ProductName: Microsoft Operating System
ProductVersion: 1.8.3.6
AssemblyVersion: 1.8.3.6
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
133
Monitored processes
4
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start #QUASAR a.exe sppextcomobj.exe no specs slui.exe slui.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
4488C:\WINDOWS\System32\slui.exe -EmbeddingC:\Windows\System32\slui.exe—svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Activation Client
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
5588C:\WINDOWS\system32\SppExtComObj.exe -EmbeddingC:\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
Images
c:\windows\system32\sppextcomobj.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\oleaut32.dll
6436"C:\Users\admin\AppData\Local\Temp\a.exe" C:\Users\admin\AppData\Local\Temp\a.exe
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Security Process
Version:
10.2261.457.1
Modules
Images
c:\users\admin\appdata\local\temp\a.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(6436) a.exe
Version1.4.1
C2 (2)mesh.winkycop.store:443
Sub_DirSubDir
Install_Namesvc.exe
Mutex365442ac-2f5a-4bb8-9e6e-775dfbca6c32
Startupsvchost
TagOffice04
LogDirLogs
SignatureaNntLDqOX7pPCwvDqQ/kdupi2ACc+41npWF4ArBnGsMiZIE1wqbw6d1t4/KENRRJF1KM4WZ060aFhaCswQ8QUBtE169qYeiaNnnSAB7LlKo5Y01kLt003MCp05JeeOf9PCVjGyTn30Exa24LUaFfXdLHac81EbCe6uehfBx2vIQn5Xn+fjUck/hie1/D9a4656jTGkdEnrKlLaTI3l7yxBXfj09eRq/OwqPEskpfAhuOdxYxAK1/yuwXVChCThQZy3kO48qiFuZ+UV9GlU2YLSMtLB3B+1AmSgMkNmDZf5t7...
CertificateMIIE9DCCAtygAwIBAgIQAMo1Wnll/L4s/YVkpKkGfTANBgkqhkiG9w0BAQ0FADAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMCAXDTI1MDEyODIyMjY0MFoYDzk5OTkxMjMxMjM1OTU5WjAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAiyK4TXuP3TP+MMVK50JC/8K3lKbL/iP2xzhjnGwhw6Q8GZz9V5pYckaA18RSKKKwAV5/lPip...
6620"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=TimerEventC:\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
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
1 247
Read events
1 246
Write events
1
Delete events
0

Modification events

(PID) Process:(6436) a.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:svchost
Value:
"C:\Users\admin\AppData\Roaming\SubDir\svc.exe"
Executable files
0
Suspicious files
0
Text files
0
Unknown types
0

Dropped files

No data
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
4
TCP/UDP connections
53
DNS requests
15
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
—
—
GET
200
23.48.23.143:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
6544
svchost.exe
GET
200
2.17.190.73:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
—
—
whitelisted
3100
SIHClient.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl
unknown
—
—
whitelisted
3100
SIHClient.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.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
4
System
192.168.100.255:137
—
—
—
whitelisted
—
—
20.73.194.208:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
—
—
23.48.23.143:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
6436
a.exe
104.21.34.55:443
mesh.winkycop.store
CLOUDFLARENET
—
unknown
3216
svchost.exe
20.198.162.78:443
client.wns.windows.com
MICROSOFT-CORP-MSN-AS-BLOCK
SG
whitelisted
6544
svchost.exe
40.126.32.133:443
login.live.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
6544
svchost.exe
2.17.190.73:80
ocsp.digicert.com
AKAMAI-AS
DE
whitelisted
2104
svchost.exe
20.73.194.208:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
3100
SIHClient.exe
52.149.20.212:443
slscr.update.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
US
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 20.73.194.208
whitelisted
crl.microsoft.com
  • 23.48.23.143
  • 23.48.23.156
whitelisted
google.com
  • 142.250.185.142
whitelisted
mesh.winkycop.store
  • 104.21.34.55
  • 172.67.155.29
unknown
client.wns.windows.com
  • 20.198.162.78
whitelisted
login.live.com
  • 40.126.32.133
  • 40.126.32.134
  • 20.190.160.130
  • 40.126.32.68
  • 20.190.160.5
  • 40.126.32.138
  • 20.190.160.128
  • 20.190.160.65
whitelisted
ocsp.digicert.com
  • 2.17.190.73
whitelisted
slscr.update.microsoft.com
  • 52.149.20.212
whitelisted
www.microsoft.com
  • 184.30.21.171
whitelisted
fe3cr.delivery.mp.microsoft.com
  • 40.69.42.241
whitelisted

Threats

No threats detected
No debug info
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Reports
a.exe