MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ee8d84e3da3e1334daf11ef37d7ec7be0061402f9df2fb3d33c969ba1ef77cc8. 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 File information Comments

SHA256 hash: ee8d84e3da3e1334daf11ef37d7ec7be0061402f9df2fb3d33c969ba1ef77cc8
SHA3-384 hash: 43ac1d4b20b49c6aa7ba3d457d3ef9b9d0c1beb26ee551f8767caf7d088beb11cf3ae8385966d520b8e5c58e0670584b
SHA1 hash: dce47ad6eb232e1df3b014ad690d3e6233170a9f
MD5 hash: c5dbdd47d42994efc153c6ec0475fbd7
humanhash: sink-romeo-oregon-lactose
File name:558_return.js
Download: download sample
Signature QuasarRAT
File size:5'194 bytes
First seen:2024-03-19 11:43:16 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 96:xvMev69dHo3vYuG2vwVBAxgQMnXeScYA4c19RqkUN6TM4JE0H8KqCr:xkeCTuQuG2KWxfkciqqfEEKz
TLSH T1BEB14BD27D982B607257DF027AD1B5F28D1EB757E977B2FC6040918813E0C846E05BAB
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Reporter mossdinger
Tags:js QuasarRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
462
Origin country :
TH TH
Vendor Threat Intelligence
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated powershell
Result
Verdict:
MALICIOUS
Result
Threat name:
Clipboard Hijacker, Quasar
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Connects to a pastebin service (likely for C&C)
Contains functionality to disable the Task Manager (.Net Source)
Contains functionality to hide user accounts
Creates autostart registry keys with suspicious values (likely registry only malware)
Found suspicious powershell code related to unpacking or dynamic code loading
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Self deletion via cmd or bat file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: Potentially Suspicious Malware Callback Communication
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Silenttrinity Stager Msbuild Activity
Sigma detected: WScript or CScript Dropper
Snort IDS alert 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)
Very long command line found
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 download and execute
Yara detected Quasar RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1411676 Sample: 558_return.js Startdate: 19/03/2024 Architecture: WINDOWS Score: 100 54 paste.ee 2->54 56 textbin.net 2->56 58 6 other IPs or domains 2->58 80 Snort IDS alert for network traffic 2->80 82 Multi AV Scanner detection for domain / URL 2->82 84 Malicious sample detected (through community Yara rule) 2->84 88 18 other signatures 2->88 10 wscript.exe 1 1 2->10         started        13 powershell.exe 12 2->13         started        15 powershell.exe 2->15         started        signatures3 86 Connects to a pastebin service (likely for C&C) 54->86 process4 signatures5 100 JScript performs obfuscated calls to suspicious functions 10->100 102 Suspicious powershell command line found 10->102 104 Wscript starts Powershell (via cmd or directly) 10->104 112 3 other signatures 10->112 17 powershell.exe 7 10->17         started        106 Contains functionality to hide user accounts 13->106 108 Writes to foreign memory regions 13->108 110 Injects a PE file into a foreign processes 13->110 20 MSBuild.exe 3 13->20         started        22 conhost.exe 13->22         started        24 MSBuild.exe 13->24         started        26 conhost.exe 15->26         started        28 MSBuild.exe 15->28         started        process6 signatures7 72 Suspicious powershell command line found 17->72 74 Self deletion via cmd or bat file 17->74 76 Bypasses PowerShell execution policy 17->76 78 Found suspicious powershell code related to unpacking or dynamic code loading 17->78 30 powershell.exe 14 17 17->30         started        35 conhost.exe 17->35         started        process8 dnsIp9 64 sharetext.me 172.67.191.176, 443, 49707 CLOUDFLARENETUS United States 30->64 66 textbin.net 148.72.177.212, 443, 49703, 49705 AS-30083-GO-DADDY-COM-LLCUS United States 30->66 68 paste.ee 172.67.187.200, 443, 49704, 49706 CLOUDFLARENETUS United States 30->68 50 C:\Users\user\AppData\Roaming\x2.ps1, ASCII 30->50 dropped 52 C:\Users\user\AppData\Roaming\bbndi.ps1, Unicode 30->52 dropped 70 Self deletion via cmd or bat file 30->70 37 powershell.exe 11 30->37         started        40 powershell.exe 1 11 30->40         started        42 cmd.exe 1 30->42         started        file10 signatures11 process12 signatures13 90 Contains functionality to hide user accounts 37->90 92 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 37->92 94 Writes to foreign memory regions 37->94 96 Injects a PE file into a foreign processes 37->96 44 MSBuild.exe 15 2 37->44         started        48 MSBuild.exe 37->48         started        98 Creates autostart registry keys with suspicious values (likely registry only malware) 40->98 process14 dnsIp15 60 54.39.233.85, 49712, 49720, 49722 OVHFR Canada 44->60 62 ip-api.com 208.95.112.1, 49711, 80 TUT-ASUS United States 44->62 114 Hides that the sample has been downloaded from the Internet (zone.identifier) 44->114 signatures16
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2024-03-18 03:55:22 UTC
File Type:
Text (Batch)
AV detection:
7 of 24 (29.17%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:novotrampo2 persistence spyware trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Blocklisted process makes network request
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
54.39.233.85:5552
Dropper Extraction:
https://pt.textbin.net/download/zbbh8tfbo9
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

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