MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0dcdaedf2f76dbc431635dbc53c893692cb644f5dbdfde46bc942b9806b8f0d7. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


QuasarRAT


Vendor detections: 10


Intelligence 10 IOCs YARA 1 File information Comments
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SHA256 hash: 0dcdaedf2f76dbc431635dbc53c893692cb644f5dbdfde46bc942b9806b8f0d7
SHA3-384 hash: 8563ced4ae5cce2a82a8e7106411c54933d43531f0e46c06d842f546f6496106e6f9083c1cba9af0da139437ee39a8c0
SHA1 hash: bb9c75690963d7c2bb608d5fb3b9b627b1bc4e34
MD5 hash: 1c83c6f80fcddabd1336cc30aa68d08f
humanhash: winter-spring-quiet-alanine
File name:tt.vbs
Download: download sample
Signature QuasarRAT
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File size:281'543 bytes
First seen:2025-01-30 08:25:24 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 6144:eUQydS/Z5QL2AEhyNqfrASLddf9USsPgd5QxwNsCQOod2zf:UyduQLnEh4qjASj9USsIP0wNPQ2zf
TLSH T19254F2329F8BA67C33E076B3BD4EC6B0046CCAE5946066D6F270C8258AE554EC7FD146
Magika vba
Reporter JAMESWT_WT
Tags:156-253-250-62 Quasar QuasarRAT vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
110
Origin country :
IT IT
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Script.SNH-gen.7760.17593.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=679b388329ae628cf42b74d7
Tags:
obfuscate xtreme sage
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
monero obfuscated powershell
Link:
https://www.filescan.io/uploads/679b379ea2886cdc5ac6ac1d/reports/dac53e29-149c-439a-ab7a-382ad20b5d18/overview
Verdict:
Malicious
Labled as:
GT:VB.Zbot.9
Link:
https://www.hybrid-analysis.com/sample/0dcdaedf2f76dbc431635dbc53c893692cb644f5dbdfde46bc942b9806b8f0d7
Result
Verdict:
MALICIOUS
Details
Base64 Encoded Powershell Directives
Detected one or more base64 encoded Powershell directives.
Result
Threat name:
Quasar
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Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1602831
Signature
.NET source code contains a sample name check
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Creates multiple autostart registry keys
Detected Quasar RAT
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded Invoke Keyword
Sigma detected: PowerShell Base64 Encoded WMI Classes
Sigma detected: Powerup Write Hijack DLL
Sigma detected: Register Wscript In Run Key
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Uses dynamic DNS services
VBScript performs obfuscated calls to suspicious functions
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1602831 Sample: tt.vbs Startdate: 30/01/2025 Architecture: WINDOWS Score: 100 117 bittorrents.duckdns.org 2->117 119 ip-api.com 2->119 121 0x0.st 2->121 127 Sigma detected: Register Wscript In Run Key 2->127 129 Suricata IDS alerts for network traffic 2->129 131 Found malware configuration 2->131 135 20 other signatures 2->135 11 wscript.exe 2 2->11         started        15 wscript.exe 2->15         started        17 wscript.exe 2->17         started        19 10 other processes 2->19 signatures3 133 Uses dynamic DNS services 117->133 process4 file5 115 C:\Users\user\AppData\Local\Temp\c.bat, ASCII 11->115 dropped 159 VBScript performs obfuscated calls to suspicious functions 11->159 161 Wscript starts Powershell (via cmd or directly) 11->161 163 Windows Scripting host queries suspicious COM object (likely to drop second stage) 11->163 165 Suspicious execution chain found 11->165 21 cmd.exe 1 11->21         started        24 cmd.exe 15->24         started        26 cmd.exe 17->26         started        167 Loading BitLocker PowerShell Module 19->167 28 cmd.exe 19->28         started        30 conhost.exe 19->30         started        32 conhost.exe 19->32         started        34 6 other processes 19->34 signatures6 process7 signatures8 141 Suspicious powershell command line found 21->141 143 Wscript starts Powershell (via cmd or directly) 21->143 145 Bypasses PowerShell execution policy 21->145 36 cmd.exe 2 21->36         started        39 conhost.exe 21->39         started        41 cmd.exe 24->41         started        43 conhost.exe 24->43         started        45 cmd.exe 26->45         started        47 conhost.exe 26->47         started        49 cmd.exe 28->49         started        51 conhost.exe 28->51         started        process9 signatures10 137 Suspicious powershell command line found 36->137 139 Wscript starts Powershell (via cmd or directly) 36->139 53 powershell.exe 36->53         started        58 powershell.exe 35 36->58         started        60 conhost.exe 36->60         started        62 powershell.exe 41->62         started        64 powershell.exe 41->64         started        66 conhost.exe 41->66         started        68 powershell.exe 45->68         started        70 conhost.exe 45->70         started        72 2 other processes 49->72 process11 dnsIp12 123 ip-api.com 208.95.112.1, 49738, 49874, 50008 TUT-ASUS United States 53->123 125 0x0.st 168.119.145.117, 443, 49737, 49826 HETZNER-ASDE Germany 53->125 99 C:\Users\user\...\WindowsUpdate_407.vbs, ASCII 53->99 dropped 101 C:\Users\user\...\WindowsUpdate_407.bat, ASCII 53->101 dropped 147 Detected Quasar RAT 53->147 149 Creates multiple autostart registry keys 53->149 151 Found suspicious powershell code related to unpacking or dynamic code loading 53->151 103 C:\Users\user\AppData\...\sbffu3lx.cmdline, Unicode 58->103 dropped 153 Loading BitLocker PowerShell Module 58->153 74 csc.exe 3 58->74         started        77 cmstp.exe 8 7 58->77         started        105 C:\Users\user\...\WindowsUpdate_976.bat, ASCII 62->105 dropped 155 Hides that the sample has been downloaded from the Internet (zone.identifier) 62->155 157 Installs a global keyboard hook 62->157 79 csc.exe 64->79         started        81 cmstp.exe 64->81         started        83 csc.exe 68->83         started        85 cmstp.exe 68->85         started        87 csc.exe 72->87         started        89 cmstp.exe 72->89         started        file13 signatures14 process15 file16 107 C:\Users\user\AppData\Local\...\sbffu3lx.dll, PE32 74->107 dropped 91 cvtres.exe 1 74->91         started        109 C:\Users\user\AppData\Local\...\ecc0ewuz.dll, PE32 79->109 dropped 93 cvtres.exe 79->93         started        111 C:\Users\user\AppData\Local\...\xeb4cmxb.dll, PE32 83->111 dropped 95 cvtres.exe 83->95         started        113 C:\Users\user\AppData\Local\...\3mfz5k4w.dll, PE32 87->113 dropped 97 cvtres.exe 87->97         started        process17
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/0dcdaedf2f76dbc431635dbc53c893692cb644f5dbdfde46bc942b9806b8f0d7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0dcdaedf2f76dbc431635dbc53c893692cb644f5dbdfde46bc942b9806b8f0d7/
Threat name:
Script-WScript.Infostealer.Zeus
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Status:
Malicious
First seen:
2025-01-30 08:18:56 UTC
File Type:
Text (VBS)
AV detection:
6 of 24 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bxg25xzpo3n4imldlw6fhsetnewlmrhv3pp54rv4sqvzqbvy6dlq._file
Result
Malware family:
quasar
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Score:
  10/10
Tags:
family:quasar discovery execution persistence spyware trojan
Link:
https://tria.ge/reports/250130-kbvbysxqam/
Behaviour
Kills process with taskkill
Suspicious behavior: CmdExeWriteProcessMemorySpam
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in System32 directory
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Quasar RAT
Quasar family
Quasar payload
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Base64_Encoded_Powershell_Directives
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File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

QuasarRAT

Visual Basic Script (vbs) vbs 0dcdaedf2f76dbc431635dbc53c893692cb644f5dbdfde46bc942b9806b8f0d7

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3420657/
  
Delivery method
Distributed via web download

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