MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c983314c573fe3408730565056c78968b2fdf9dec5d6f67701bcd62eadc39ea4. 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: 9


Intelligence 9 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c983314c573fe3408730565056c78968b2fdf9dec5d6f67701bcd62eadc39ea4
SHA3-384 hash: 567afadab4767885fbfb179c75eaaad143794d1ca73434cbd4ada0988e35b9b21cc743d6d66e54fdfdba74f1de5a6fd3
SHA1 hash: 4d09795bab624a2dbeb62a14870693f8c0dc810c
MD5 hash: 4730787ad81772f8d9b03ae8faf9efc3
humanhash: yankee-september-wyoming-bakerloo
File name:PO_978585_Windshield_&_Escape_Slide.pdf.vbs
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:201'800 bytes
First seen:2024-05-16 17:14:37 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 384:z1OlYw8nrW9LrBppppppppppppppppppppNGpppppppppppppppppppppppppppf:sfirg/LNA
TLSH T1BE144A1227F94208F9F63E85AAB51460CB36BD5AACBCDE2D0590840E1DFDA14CDB4F67
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Reporter Anonymous
Tags:QuasarRAT vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
120
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Script.SNH-gen.14639.2643.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin masquerade powershell schtasks syncappvpublishingserver
Link:
https://www.filescan.io/uploads/66463f2ed6e86aacd1cc16b5/reports/01e927a3-c6c4-43d4-9e66-026a7d7619c9/overview
Verdict:
Malicious
Labled as:
GT:VB.Honolulu.1
Link:
https://www.hybrid-analysis.com/sample/c983314c573fe3408730565056c78968b2fdf9dec5d6f67701bcd62eadc39ea4
Result
Verdict:
MALICIOUS
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1442882
Signature
Antivirus detection for URL or domain
Found suspicious powershell code related to unpacking or dynamic code loading
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Uses an obfuscated file name to hide its real file extension (double extension)
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)
Behaviour
Behavior Graph:
Download SVG
Score:
2%
Verdict:
Benign
File Type:
SCRIPT
Link:
https://malprob.io/report/c983314c573fe3408730565056c78968b2fdf9dec5d6f67701bcd62eadc39ea4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c983314c573fe3408730565056c78968b2fdf9dec5d6f67701bcd62eadc39ea4/
Threat name:
Script-WScript.Backdoor.QuasarRAT
Create hunting rule
Status:
Malicious
First seen:
2024-05-16 15:13:17 UTC
File Type:
Text (VBS)
AV detection:
7 of 23 (30.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zgbtctcxh7rubbzqkzifnr4jnczp36o6yxlpm5ybxtlc5lodt2sa._file
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:aldo_r3gon execution spyware trojan
Link:
https://tria.ge/reports/240516-vsjxnafc67/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Drops startup file
Blocklisted process makes network request
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
peurnick24.bumbleshrimp.com:7310
Dropper Extraction:
https://pasteio.com/download/xcxWvykfm30a
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c983314c573fe3408730565056c78968b2fdf9dec5d6f67701bcd62eadc39ea4

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:SUSP_VBS_Wscript_Shell
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects the definition of 'Wscript.Shell' which is often used by Malware, FPs are possible and commmon

File information

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

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