Windows
Analysis Report
SecuriteInfo.com.Win64.MalwareX-gen.15932.4492.exe
Overview
General Information
Detection
Quasar
Score: | 100 |
Range: | 0 - 100 |
Confidence: | 100% |
Signatures
Antivirus detection for dropped file
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected Quasar RAT
Adds a directory exclusion to Windows Defender
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Uses schtasks.exe or at.exe to add and modify task schedules
Allocates memory with a write watch (potentially for evading sandboxes)
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to detect virtual machines (STR)
Contains functionality to launch a program with higher privileges
Contains functionality to query CPU information (cpuid)
Contains functionality to query locales information (e.g. system language)
Contains functionality to retrieve information about pressed keystrokes
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Dropped file seen in connection with other malware
Drops PE files
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May check the online IP address of the machine
May sleep (evasive loops) to hinder dynamic analysis
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sigma detected: Change PowerShell Policies to an Insecure Level
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicious Add Scheduled Task Parent
Sigma detected: Suspicious Schtasks From Env Var Folder
Uses a known web browser user agent for HTTP communication
Uses code obfuscation techniques (call, push, ret)
Yara signature match
Classification
- System is w10x64
SecuriteInfo.com.Win64.MalwareX-gen.15932.4492.exe (PID: 7316 cmdline:
"C:\Users\ user\Deskt op\Securit eInfo.com. Win64.Malw areX-gen.1 5932.4492. exe" MD5: 08470C644B61ED4B473020EB6C455908) conhost.exe (PID: 7324 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) cmd.exe (PID: 7372 cmdline:
C:\Windows \system32\ cmd.exe /c cls MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) cmd.exe (PID: 7428 cmdline:
C:\Windows \system32\ cmd.exe /c cls MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) cmd.exe (PID: 7448 cmdline:
C:\Windows \system32\ cmd.exe /c cls MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) cmd.exe (PID: 7464 cmdline:
C:\Windows \system32\ cmd.exe /c cls MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) cmd.exe (PID: 7480 cmdline:
C:\Windows \system32\ cmd.exe /c cls MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) cmd.exe (PID: 7496 cmdline:
C:\Windows \system32\ cmd.exe /c cls MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) cmd.exe (PID: 7512 cmdline:
C:\Windows \system32\ cmd.exe /c cls MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) cmd.exe (PID: 7536 cmdline:
C:\Windows \system32\ cmd.exe /c cls MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) cmd.exe (PID: 7552 cmdline:
C:\Windows \system32\ cmd.exe /c cls MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) cmd.exe (PID: 7568 cmdline:
C:\Windows \system32\ cmd.exe /c cls MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) cmd.exe (PID: 7584 cmdline:
C:\Windows \system32\ cmd.exe /c cls MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) cmd.exe (PID: 7600 cmdline:
C:\Windows \system32\ cmd.exe /c cls MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) cmd.exe (PID: 7616 cmdline:
C:\Windows \system32\ cmd.exe /c cls MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) cmd.exe (PID: 7644 cmdline:
C:\Windows \system32\ cmd.exe /c cls MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) cmd.exe (PID: 7692 cmdline:
C:\Windows \system32\ cmd.exe /c powershel l -NoProfi le -Execut ionPolicy Bypass -Co mmand "Add -MpPrefere nce -Exclu sionPath ' C:\WCTVN'" MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) powershell.exe (PID: 7708 cmdline:
powershell -NoProfil e -Executi onPolicy B ypass -Com mand "Add- MpPreferen ce -Exclus ionPath 'C :\WCTVN'" MD5: 04029E121A0CFA5991749937DD22A1D9) cmd.exe (PID: 8000 cmdline:
C:\Windows \system32\ cmd.exe /c powershel l -NoProfi le -Execut ionPolicy Bypass -Co mmand "Add -MpPrefere nce -Exclu sionPath ' C:\Users'" MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) powershell.exe (PID: 8016 cmdline:
powershell -NoProfil e -Executi onPolicy B ypass -Com mand "Add- MpPreferen ce -Exclus ionPath 'C :\Users'" MD5: 04029E121A0CFA5991749937DD22A1D9) mmytljldrgl.exe (PID: 3156 cmdline:
"C:\WCTVN\ mmytljldrg l.exe" MD5: 766E053D13E4F6750E8F694EFB00FAD0) schtasks.exe (PID: 4228 cmdline:
"schtasks" /create / tn "svchoo st.exe" /s c ONLOGON /tr "C:\Us ers\user\A ppData\Roa ming\SubDi r\Client.e xe" /rl HI GHEST /f MD5: 76CD6626DD8834BD4A42E6A565104DC2) conhost.exe (PID: 4464 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) Client.exe (PID: 7328 cmdline:
"C:\Users\ user\AppDa ta\Roaming \SubDir\Cl ient.exe" MD5: 766E053D13E4F6750E8F694EFB00FAD0) schtasks.exe (PID: 7440 cmdline:
"schtasks" /create / tn "svchoo st.exe" /s c ONLOGON /tr "C:\Us ers\user\A ppData\Roa ming\SubDi r\Client.e xe" /rl HI GHEST /f MD5: 76CD6626DD8834BD4A42E6A565104DC2) conhost.exe (PID: 7428 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D)
Client.exe (PID: 7424 cmdline:
C:\Users\u ser\AppDat a\Roaming\ SubDir\Cli ent.exe MD5: 766E053D13E4F6750E8F694EFB00FAD0)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Quasar RAT, QuasarRAT | Quasar RAT is a malware family written in .NET which is used by a variety of attackers. The malware is fully functional and open source, and is often packed to make analysis of the source more difficult. |
{"Version": "1.4.1", "Host:Port": "87.228.57.81:4782;", "SubDirectory": "SubDir", "InstallName": "Client.exe", "MutexName": "cf3988ab-2fd9-4544-a16f-9faa71eb5bac", "StartupKey": "svchoost.exe", "Tag": "githubyt", "LogDirectoryName": "Logs", "ServerSignature": "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", "ServerCertificate": "MIIE9jCCAt6gAwIBAgIQAMCIrkV3lAMp6Vz+9SYptTANBgkqhkiG9w0BAQ0FADAcMRowGAYDVQQDDBFQaGFudG9tIFNlcnZlciBDQTAgFw0yNTAxMjQxNzU0MjFaGA85OTk5MTIzMTIzNTk1OVowHDEaMBgGA1UEAwwRUGhhbnRvbSBTZXJ2ZXIgQ0EwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQCLqDcacB918PiS52/zK8NuYRFBjeeZXbEfkolana8gflQhGUIyaXW73olgd952Z18rz4CBCX2jb1f+vqHqWwbwIiVt+Ek8urXFgrOXR2CMqV/HE3QRvviIPkrLKGUsAOue2cN0CRvgEnhMpw80CsO2ZJLCoD3NHsLp+1kY7HQalZeCDuyF9F/1zoRogBQ+yYyNDshY/FTdxRak/6a2WjSD0FJpHkMNKTvCYxi2AIILH57Cyz5dr6pD/s4T+2TiiBK2SlOqm2IQ7zkcfI5rRyie1Q4UwUK1Q7+AXni7Al7XYNH5n5sHGylOW55Sf1uX8rhD7dt/rVxv4IroQeXh0ULwnZkTzHxpjLUclv7FjqSSBegcF98uGdqJzZQDHzwUPEMqJvQ4ikZBKRZtDhReWYAZoobYHxrhAv471L6Ik7hWs8VE+DFifQu2WuV11N37JQR29uwCNMyRBGEmM02YHy36zxs8cjolbQO1HaNfAKfevaezg8czVT7XAgI72i27By9HfruniOU2xjpa1ZlHKGEi7GrYSplhZcflqbYrYdEy15VQ382yt3zkJo7DYkvGIhL2D4tt176o2yF7bm/EaLn8ID5qexn2oubC5o8HCe+KtnkfS4ARLmdpJg4U6pcZUbEbd7enqJ6LAUTJ7Gi3+NFXtPRm0lT5PRYemLHIcNaNjQIDAQABozIwMDAdBgNVHQ4EFgQUkztLutpnSBqQonmJDkIlJzumy2AwDwYDVR0TAQH/BAUwAwEB/zANBgkqhkiG9w0BAQ0FAAOCAgEAPw0vebSaYmKRfSaRE1e2YgOVyx+WZgXuPUUY7YjGpwYNRkjgtPNgsMtZDS3jXhhXBsyKsKGDcnS51Gz5c9wV4YxjoZRzXnIom0Ia1WXfifdugNvIRkKgNS3kn0SfHUjgjktUtZxAfUqiGJn2QipIDB5b+tEBG5J9PYWmNC+3205Z5cl9Ti9KgXN3FKf+/slRaE3ACPJlTdRIg3S5u7uFIKtEUkSE1WuhQi6Lyms2a0rILI3e53o+YmpSys1YOafIDUP8UboM9ktsJY4V3zcFheChn15IE+a8LJYcRAIsJbjPCw2Jo/z6R3+XY/U7nFyS5tU9oIjtDpndOOErtnVgiMeGNPmkEY3SvkEYjS8TXovcSJa00nj+yHapZxrzn9MYFYyP1lIlmhnnU+RnY5jhQVlnhccExAAb7BKXnuVI2EraVaz9wxHEUnD/3kzJj7gSvd1Ja/cqzjUb56fU4volehkDVt+XD+udV3KndKDCCwx0JEo4d/u+PHA9Q14Lw13dNWGL4zS7vqOzHYPGkeONKbq3RusCL6rzq7VcCQtg7CrB/cfuBx3cWGbM58uuLIQwoYmHrWqZo9UA7FNsodRUz+bwVokS90KzHSORD1bTc7VfotLt0P95UTm58zfgHd7CCqbjCNdaVU6JisRdkRwKr/r79j9z306SIvr1Qs6bRZw="}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
MAL_QuasarRAT_May19_1 | Detects QuasarRAT malware | Florian Roth |
| |
INDICATOR_SUSPICIOUS_GENInfoStealer | Detects executables containing common artifcats observed in infostealers | ditekSHen |
| |
MALWARE_Win_QuasarStealer | Detects Quasar infostealer | ditekshen |
| |
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
Click to see the 7 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
Click to see the 1 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Quasar | Yara detected Quasar RAT | Joe Security | ||
MAL_QuasarRAT_May19_1 | Detects QuasarRAT malware | Florian Roth |
| |
INDICATOR_SUSPICIOUS_GENInfoStealer | Detects executables containing common artifcats observed in infostealers | ditekSHen |
| |
MALWARE_Win_QuasarStealer | Detects Quasar infostealer | ditekshen |
|
System Summary |
---|
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: frack113: |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2025-02-11T11:04:22.162706+0100 | 2035595 | 1 | Domain Observed Used for C2 Detected | 87.228.57.81 | 4782 | 192.168.2.4 | 49739 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Avira: | ||
Source: | Avira: | ||
Source: | Avira: |
Source: | Malware Configuration Extractor: |