MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 5fc91760e012d3883537ab8656f4ed240c350357fb7999476b072cf5d937a417. 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: 12
| SHA256 hash: | 5fc91760e012d3883537ab8656f4ed240c350357fb7999476b072cf5d937a417 |
|---|---|
| SHA3-384 hash: | f3e1543887b68318c576129990bbb43992ea889975878260dcc94268ad371b13efbdcf9b623681b1cecb5c9bb57ec246 |
| SHA1 hash: | bb71457b5f03e65a17a0cab03cee02fc83d25e1c |
| MD5 hash: | 1ddf5ccb516c07a05ae2bdcec190b1f4 |
| humanhash: | fix-fillet-delaware-uranus |
| File name: | Cheat Mod 2025 install.vbs |
| Download: | download sample |
| Signature | QuasarRAT |
| File size: | 1'836 bytes |
| First seen: | 2025-12-23 12:36:04 UTC |
| Last seen: | Never |
| File type: |  vbs |
| MIME type: | text/plain |
| ssdeep | 24:9AMfoXnrQMG1KRHvMGEQ8TGdSXcF2MSoMRD2aMblg7dhYXXF3ppj0qkv:eMfoXnHoKRH0YpYx2evYXXNg/ |
| Threatray | 180 similar samples on MalwareBazaar |
| TLSH | T15F3122B768084DAB5702A4C6D1DA246CDD72E367BA21ECB47640CC2C8F14635E6D2CEB |
| Magika | vba |
| Reporter |  burger |
| Tags: | QuasarRAT vbs |
Intelligence
File Origin
# of uploads :
1
# of downloads :
44
Origin country :
NLVendor Threat Intelligence
No detections
Detection:
n/a
Verdict:
Malicious
Score:
99.1%
Tags:
dropper shell sage
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
cmd evasive lolbin persistence powershell timeout wscript
Verdict:
Malicious
Labled as:
Trojan.Script.VBS
Verdict:
Malicious
File Type:
vbs
First seen:
2025-12-23T09:43:00Z UTC
Last seen:
2025-12-23T10:32:00Z UTC
Hits:
~100
Detections:
HEUR:Trojan-Downloader.Script.Generic HEUR:Trojan.BAT.Agent.gen PDM:Trojan.Win32.Generic UDS:DangerousObject.Multi.Generic Trojan-Downloader.JS.SLoad.sb Trojan.VBS.SAgent.sb Trojan.JS.SAgent.sb Trojan-Downloader.JS.Cryptoload.sb Trojan.Win32.Agent.sb Trojan-Dropper.Win32.Injector.sb Trojan-PSW.MSIL.Agent.sb Trojan.Win32.Vimditator.sb HEUR:Trojan.BAT.Alien.gen Backdoor.MSIL.PulsarRAT.sb Trojan.MSIL.Agent.sb Backdoor.Win32.Androm
Result
Threat name:
Quasar
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
AI detected malicious Powershell script
Bypasses PowerShell execution policy
Connects to a pastebin service (likely for C&C)
Contains functionality to disable the Task Manager (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Potential malicious VBS script found (has network functionality)
Potential malicious VBS script found (suspicious strings)
Sample uses string decryption to hide its real strings
Sigma detected: Register Wscript In Run Key
Sigma detected: Script Initiated Connection to Non-Local Network
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
VBScript performs obfuscated calls to suspicious functions
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AntiVM3
Yara detected Powershell decode and execute
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Score:
13%
Verdict:
Benign
File Type:
SCRIPT
Verdict:
Malware
YARA:
1 match(es)
Tags:
ADODB.Stream DeObfuscated MSXML2.ServerXMLHTTP Obfuscated Scripting.FileSystemObject T1059.005 VBScript WScript.Shell
Verdict:
Malicious
Threat:
Family.QUASAR
Threat name:
Win32.Trojan.Znyonm
Status:
Malicious
First seen:
2025-12-23 12:35:59 UTC
File Type:
Text (VBS)
AV detection:
7 of 24 (29.17%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
quasarrat
Similar samples:
+ 170 additional samples on MalwareBazaar
Result
Malware family:
quasar
Score:
10/10
Tags:
family:quasar defense_evasion discovery execution persistence spyware trojan
Behaviour
Delays execution with timeout.exe
Kills process with taskkill
Script User-Agent
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
.NET Reactor proctector
Checks computer location settings
Badlisted 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.
Threat name:
Legit
Score:
0.23
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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