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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 88abb9c865aa4acfc84dd481e97fe0b44a86a8d57643b7bb02e73dd4763df24a. 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: 11


Intelligence 11 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 88abb9c865aa4acfc84dd481e97fe0b44a86a8d57643b7bb02e73dd4763df24a
SHA3-384 hash: e45ffab760fa03403b1de69ecd5d0d4301bdc3fbfd1ee8553a8f06d9641c3f7ce2e732b82a5b339645f0af3a89354b9b
SHA1 hash: 78fd3d85fcc9d0149713e6d510348c42bca67bb1
MD5 hash: 79ce160330d90503f73848d8e52fc459
humanhash: blue-batman-mexico-zulu
File name:88abb9c865aa4acf.js
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:111'750 bytes
First seen:2026-10-20 14:01:34 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 3072:5ciNsNis0ssiseisLiiDsP+sjci3sC0sMiiDsC4s7ssiswrshciXsers9SiDsC04:3
TLSH T12CB38B9928A84F90124A5146391C6FCFB54A770E77BBAF48534B7E09231C4B62E6FE70
Magika javascript
Reporter Tuxxin
Tags:js Quasar QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
163
Origin country :
US US
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Trojan.Generic.40664647.92133841.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ad7746dafb06e650cd7ef26
Tags:
autorun shell sage blic
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm evasive fingerprint persistence powershell powershell repaired
Link:
https://www.filescan.io/uploads/6ad7746814a8109cab814146/reports/1ccfba42-5f6e-490c-85e2-5c5730a69d88/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/88abb9c865aa4acfc84dd481e97fe0b44a86a8d57643b7bb02e73dd4763df24a
Verdict:
Malicious
File Type:
js
First seen:
2026-10-16T14:04:00Z UTC
Last seen:
2026-10-21T17:09:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/88abb9c865aa4acfc84dd481e97fe0b44a86a8d57643b7bb02e73dd4763df24a/results?tab=lookup
Result
Threat name:
Clipboard Hijacker, Quasar
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Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1989431
Signature
Allocates memory in foreign processes
Bypasses PowerShell execution policy
Contains functionality to hide user accounts
Creates processes via WMI
Drops script or batch files to the startup folder
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
JavaScript source code contains functionality to generate code involving a shell, file or stream
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Powershell connects to network
Sample uses string decryption to hide its real strings
Sigma detected: Drops script at startup location
Sigma detected: Potentially Suspicious Malware Callback Communication
Sigma detected: PowerShell Base64 Encoded IEX Cmdlet
Sigma detected: Powershell Download and Execute IEX
Sigma detected: PowerShell Download and Execution Cradles
Sigma detected: Suspicious PowerShell Download and Execute Pattern
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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 Clipboard Hijacker
Yara detected Generic Downloader
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Yara detected Quasar RAT
Yara detected RUNPE
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1989431 Sample: 88abb9c865aa4acf.js Startdate: 20/10/2026 Architecture: WINDOWS Score: 100 44 ip-api.com 2->44 46 dimonpert.com 2->46 52 Suricata IDS alerts for network traffic 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 17 other signatures 2->58 9 wscript.exe 1 2 2->9         started        13 cmd.exe 1 2->13         started        signatures3 process4 file5 38 C:\Users\user\...\meu_script_gerado23.bat, DOS 9->38 dropped 68 JScript performs obfuscated calls to suspicious functions 9->68 70 Wscript starts Powershell (via cmd or directly) 9->70 72 Drops script or batch files to the startup folder 9->72 76 3 other signatures 9->76 15 cmd.exe 1 9->15         started        74 Suspicious powershell command line found 13->74 18 powershell.exe 13->18         started        20 conhost.exe 13->20         started        signatures6 process7 signatures8 78 Suspicious powershell command line found 15->78 80 Wscript starts Powershell (via cmd or directly) 15->80 82 Bypasses PowerShell execution policy 15->82 22 powershell.exe 14 16 15->22         started        26 conhost.exe 15->26         started        84 Contains functionality to hide user accounts 18->84 86 Writes to foreign memory regions 18->86 88 Allocates memory in foreign processes 18->88 90 2 other signatures 18->90 28 powershell_ise.exe 3 18->28         started        30 powershell_ise.exe 18->30         started        process9 dnsIp10 48 dimonpert.com 192.250.227.13, 443, 49713, 49717 WHG-DALGB United States 22->48 60 Contains functionality to hide user accounts 22->60 62 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 22->62 64 Writes to foreign memory regions 22->64 66 2 other signatures 22->66 32 powershell_ise.exe 15 2 22->32         started        36 powershell_ise.exe 22->36         started        signatures11 process12 dnsIp13 40 191.96.224.177, 49722, 5552 TynaHost-DatacenternoBrasilBR Brazil 32->40 42 ip-api.com 208.95.112.1, 49721, 80 TUT-AS-TotalUptimeTechnologiesLLCUS United States 32->42 50 Hides that the sample has been downloaded from the Internet (zone.identifier) 32->50 signatures14
Verdict:
Malware
YARA:
2 match(es)
Tags:
DeObfuscated Javascript PowerShell Powershell: Hidden Execution T1027 T1059.001 T1059.007 T1105
Link:
https://app.malva.re/file/79ce160330d90503f73848d8e52fc459
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/88abb9c865aa4acfc84dd481e97fe0b44a86a8d57643b7bb02e73dd4763df24a/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-10-16 21:31:28 UTC
File Type:
Binary
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rcv3tsdfvjfm7scn2sa6s77awrfinkgvozb3poyc4465i5r56jfa._file
Verdict:
malicious
Label(s):
QuasarRAT
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Link:
https://reports.threatray.com/f22ed137-6d28-45f3-a6a6-b42add30015b
Result
Malware family:
quasar
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Score:
  10/10
Tags:
family:quasar botnet:bora discovery execution persistence privilege_escalation spyware trojan
Link:
https://tria.ge/reports/261020-rb8b5sav8s/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Executes a command shell one-liner
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Looks up external IP address via web service
.NET Reactor proctector
Creates a file in the Startup directory
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Family: Quasar RAT
Process spawned unexpected child process
Quasar payload
Malware Config
C2 Extraction:
191.96.224.177:5552
Dropper Extraction:
https://dimonpert.com/cim.png
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/88abb9c865aa4acfc84dd481e97fe0b44a86a8d57643b7bb02e73dd4763df24a

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:detect_powershell
Create hunting rule
Author:daniyyell
Description:Detects suspicious PowerShell activity related to malware execution
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:SUSP_Script_PowerShell_Hidden_Launcher
Create hunting rule
Author:Marjoriefort
Description:Script (JS/VBS) lancant PowerShell en mode furtif - dropper frais MalwareBazaar
Reference:Veille fraicheur 2026-09-14 / cluster misses web
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:WScript_Shell_PowerShell_Combo_RID32E7
Create hunting rule
Author:Florian Roth
Description:Detects malware from Middle Eastern campaign reported by Talos
Reference:http://blog.talosintelligence.com/2018/02/targeted-attacks-in-middle-east.html

File information

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

Web download

QuasarRAT

Java Script (JS) js 88abb9c865aa4acfc84dd481e97fe0b44a86a8d57643b7bb02e73dd4763df24a

(this sample)

  
Delivery method
Distributed via web download

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