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:
quasar
rat
evasion
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

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 mutex has been found

      • a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe (PID: 7332)
    • QUASAR has been detected (YARA)

      • a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe (PID: 7332)
  • SUSPICIOUS

    • Checks for external IP

      • svchost.exe (PID: 2196)
      • a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe (PID: 7332)
    • There is functionality for taking screenshot (YARA)

      • a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe (PID: 7332)
    • Connects to unusual port

      • a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe (PID: 7332)
  • INFO

    • Reads the machine GUID from the registry

      • a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe (PID: 7332)
    • Reads the computer name

      • a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe (PID: 7332)
    • Disables trace logs

      • a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe (PID: 7332)
    • Creates files or folders in the user directory

      • a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe (PID: 7332)
    • Checks supported languages

      • a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe (PID: 7332)
    • Checks proxy server information

      • a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe (PID: 7332)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

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
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: 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
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
130
Monitored processes
4
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start #QUASAR a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe sppextcomobj.exe no specs slui.exe no specs svchost.exe

Process information

PID
CMD
Path
Indicators
Parent process
2196C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s DnscacheC:\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
Images
c:\windows\system32\svchost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\kernel.appcore.dll
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
Images
c:\users\admin\appdata\local\temp\a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\mscoree.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
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
7380C:\WINDOWS\system32\SppExtComObj.exe -EmbeddingC:\Windows\System32\SppExtComObj.Exesvchost.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
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=TimerEventC:\Windows\System32\slui.exeSppExtComObj.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
1 862
Read events
1 848
Write events
14
Delete events
0

Modification events

(PID) Process:(7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASAPI32
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASAPI32
Operation:writeName:EnableAutoFileTracing
Value:
0
(PID) Process:(7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASAPI32
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASAPI32
Operation:writeName:FileTracingMask
Value:
(PID) Process:(7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASAPI32
Operation:writeName:ConsoleTracingMask
Value:
(PID) Process:(7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASAPI32
Operation:writeName:MaxFileSize
Value:
1048576
(PID) Process:(7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASAPI32
Operation:writeName:FileDirectory
Value:
%windir%\tracing
(PID) Process:(7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASMANCS
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASMANCS
Operation:writeName:EnableAutoFileTracing
Value:
0
(PID) Process:(7332) a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RASMANCS
Operation:writeName:EnableConsoleTracing
Value:
0
Executable files
0
Suspicious files
1
Text files
0
Unknown types
0

Dropped files

PID
Process
Filename
Type
7332a76e07e94dc79d6d45d1ce5e22ea9915b52ad14533e521484b5b5b7e824702a5.exeC:\Users\admin\AppData\Roaming\Logs\04-29-2025binary
MD5:D2971DCC83458DC58F8D1481E689FFBD
SHA256:63EF880D4EFEB1282EA529D84AA4336A1E007ACBC2BDCCF11CBA9654579819AC
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
6
TCP/UDP connections
23
DNS requests
15
Threats
4

HTTP requests

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

Connections

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

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 51.124.78.146
  • 20.73.194.208
whitelisted
crl.microsoft.com
  • 23.216.77.42
  • 23.216.77.30
whitelisted
www.microsoft.com
  • 23.35.229.160
whitelisted
google.com
  • 172.217.18.14
whitelisted
ip-api.com
  • 208.95.112.1
whitelisted
client.wns.windows.com
  • 172.211.123.248
whitelisted
login.live.com
  • 40.126.32.136
  • 40.126.32.134
  • 20.190.160.64
  • 20.190.160.66
  • 20.190.160.14
  • 20.190.160.131
  • 20.190.160.65
  • 20.190.160.22
whitelisted
ocsp.digicert.com
  • 184.30.131.245
whitelisted
slscr.update.microsoft.com
  • 172.202.163.200
whitelisted
fe3cr.delivery.mp.microsoft.com
  • 40.69.42.241
whitelisted

Threats

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
No debug info