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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aee76e739eaa6eba8e1110326dd4bccd6e4f2980d57660631030592da65c0fdb. 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



RemcosRAT


Vendor detections: 7


Intelligence 7 IOCs YARA File information Comments

SHA256 hash: aee76e739eaa6eba8e1110326dd4bccd6e4f2980d57660631030592da65c0fdb
SHA3-384 hash: a2fe9353a232b4c57c101f6fcb3abcb0c2e9e2bbb90f6b54564df6a59cd1907dd8a23edf8919328c41b3769c52eb6301
SHA1 hash: 4ea247ca2f566b26fb741fa7b1113b57d2d00abc
MD5 hash: 645b44be7d9e6462e0e5bbd2fd9e137f
humanhash: purple-lake-cola-lion
File name:Ref 00147_24092026.js
Download: download sample
Signature RemcosRAT
File size:5'354'336 bytes
First seen:2026-09-24 13:30:54 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 3072:730EQKsqLSg7thuya3av8v7tTAt3ZXoNEetciO3f2cTCToYxtzdz3hHEkvStq1tg:P
TLSH T110465EAB1F942781F35F78ECA7CD469B1BC20C868BF768F1585B0B46C99C49A64DB301
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika vba
Reporter abuse_ch
Tags:js RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
156
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
repaired
Verdict:
Malicious
File Type:
js
First seen:
2026-09-24T07:21:00Z UTC
Last seen:
2026-09-26T08:14:00Z UTC
Hits:
~1000
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject threads in other processes
Contains functionality to steal Internet Explorer form passwords
Creates processes via WMI
Detected large data written to user environment variables, potentially indicating payload staging for fileless execution
Detected Remcos RAT
Found malware configuration
Found stalling execution ending in API Sleep call
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Remcos
Sigma detected: Suspicious Environment Variable Has Been Registered
Sigma detected: Windows Shell/Scripting Application File Write to Suspicious Folder
Sigma detected: WScript or CScript Dropper
Sigma detected: WScript or CScript Dropper - File
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Tries to detect sandboxes / dynamic malware analysis system (Installed program check)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file registry)
Unusual module load detection (module proxying)
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 MSIL Injector
Yara detected Powershell decode and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1977672 Sample: Ref 00147_24092026.js Startdate: 24/09/2026 Architecture: WINDOWS Score: 100 37 fusimorph.xyz 2->37 39 rjwz.ydns.eu 2->39 41 4 other IPs or domains 2->41 53 Suricata IDS alerts for network traffic 2->53 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 61 17 other signatures 2->61 8 wscript.exe 2->8         started        10 wscript.exe 7 2 2->10         started        14 powershell.exe 14 7 2->14         started        signatures3 59 Performs DNS queries to domains with low reputation 37->59 process4 dnsIp5 17 powershell.exe 8->17         started        35 C:\Users\Public\Downloads\PFGOLdvfYH.js, Unicode 10->35 dropped 71 Suspicious powershell command line found 10->71 73 Wscript starts Powershell (via cmd or directly) 10->73 75 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->75 77 3 other signatures 10->77 45 fusimorph.xyz 167.104.165.125, 443, 49716, 49722 LSU-LouisianaStateUniversityUS Japan 14->45 20 conhost.exe 14->20         started        file6 signatures7 process8 signatures9 47 Writes to foreign memory regions 17->47 49 Modifies the context of a thread in another process (thread injection) 17->49 51 Injects a PE file into a foreign processes 17->51 22 MSBuild.exe 4 3 17->22         started        27 conhost.exe 17->27         started        process10 dnsIp11 43 rjwz.ydns.eu 192.145.124.6, 49723, 49724, 62755 M247RO Spain 22->43 29 C:\Users\user\AppData\...\Login Data.tmp, SQLite 22->29 dropped 31 C:\Users\user\AppData\...\Login Data.tmp, SQLite 22->31 dropped 33 C:\Users\user\...\Login Data For Account.tmp, SQLite 22->33 dropped 63 Contains functionality to bypass UAC (CMSTPLUA) 22->63 65 Detected Remcos RAT 22->65 67 Tries to steal Mail credentials (via file registry) 22->67 69 6 other signatures 22->69 file12 signatures13
Gathering data
Threat name:
Win32.Downloader.Generic
Status:
Suspicious
First seen:
2026-09-24 10:40:23 UTC
File Type:
Binary
AV detection:
10 of 24 (41.67%)
Threat level:
  3/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
execution persistence
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Uses Task Scheduler COM API
Command and Scripting Interpreter: JavaScript
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Process spawned unexpected child process
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.

Comments