MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c3dce4b11c28823d58ca1c10425bef7cba0c19ed7c5c02546c86b77b870f6730. 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: 9


Intelligence 9 IOCs YARA File information Comments

SHA256 hash: c3dce4b11c28823d58ca1c10425bef7cba0c19ed7c5c02546c86b77b870f6730
SHA3-384 hash: 2e49d9f8081e3322e99983963b9d45463a170472ecc819d81e58468fefcb25bbb0f2b23785b4f5a246e903d42f92e23b
SHA1 hash: dc15b4564e537ca25169bcd3eeca38292945327f
MD5 hash: e310705477c4a739a9c4bf109bfa3878
humanhash: september-berlin-don-wolfram
File name:PO409998094568654567786678776.js
Download: download sample
Signature RemcosRAT
File size:400'024 bytes
First seen:2025-05-14 07:56:00 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 768:CLjTuohxMDbvY7VjB42lpkLjTuohxMDbvY7VjB42lpb:ib4DSjDkb4DSjDb
Threatray 4'163 similar samples on MalwareBazaar
TLSH T1DE84610AAF1560B154F7A35ABE2A8204E53133179452823739FED6446F72CC4D7BAFE8
Magika javascript
Reporter lowmal3
Tags:js RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
466
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated
Result
Threat name:
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Connects to a pastebin service (likely for C&C)
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Creates autostart registry keys with suspicious values (likely registry only malware)
Delayed program exit found
Detected Remcos RAT
Found malware configuration
Found Tor onion address
Injects a PE file into a foreign processes
Installs a global keyboard hook
Javascript file is likely language aware (will only work on specific systems)
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Net WebClient Casing Anomalies
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Remcos
Sigma detected: Script Initiated Connection to Non-Local Network
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
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 Powershell decode and execute
Yara detected Powershell download and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1689654 Sample: PO409998094568654567786678776.js Startdate: 14/05/2025 Architecture: WINDOWS Score: 100 34 paste.ee 2->34 36 geoplugin.net 2->36 38 2 other IPs or domains 2->38 46 Suricata IDS alerts for network traffic 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 54 15 other signatures 2->54 9 wscript.exe 1 1 2->9         started        signatures3 52 Connects to a pastebin service (likely for C&C) 34->52 process4 dnsIp5 40 paste.ee 23.186.113.60, 443, 49692, 49693 KLAYER-GLOBALNL Reserved 9->40 64 System process connects to network (likely due to code injection or exploit) 9->64 66 JScript performs obfuscated calls to suspicious functions 9->66 68 Suspicious powershell command line found 9->68 70 3 other signatures 9->70 13 powershell.exe 15 16 9->13         started        signatures6 process7 dnsIp8 42 archive.org 207.241.224.2, 443, 49695 INTERNET-ARCHIVEUS United States 13->42 44 dn721808.ca.archive.org 204.62.247.90, 443, 49696 COGENT-174US United States 13->44 72 Found Tor onion address 13->72 74 Creates autostart registry keys with suspicious values (likely registry only malware) 13->74 76 Writes to foreign memory regions 13->76 78 Injects a PE file into a foreign processes 13->78 17 AddInProcess32.exe 2 16 13->17         started        22 cmd.exe 1 13->22         started        24 conhost.exe 13->24         started        signatures9 process10 dnsIp11 30 209.54.102.170, 49699, 5070 ASN-QUADRANET-GLOBALUS United States 17->30 32 geoplugin.net 178.237.33.50, 49700, 80 ATOM86-ASATOM86NL Netherlands 17->32 28 C:\ProgramData\remcos\logs.dat, data 17->28 dropped 56 Detected Remcos RAT 17->56 58 Contains functionalty to change the wallpaper 17->58 60 Contains functionality to steal Chrome passwords or cookies 17->60 62 4 other signatures 17->62 26 conhost.exe 22->26         started        file12 signatures13 process14
Threat name:
Script-JS.Backdoor.Remcos
Status:
Malicious
First seen:
2025-05-14 07:56:14 UTC
File Type:
Text (JavaScript)
AV detection:
8 of 37 (21.62%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:log discovery execution persistence rat
Behaviour
Modifies registry class
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Remcos
Remcos family
Malware Config
C2 Extraction:
209.54.102.170:5070
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.

Malspam

RemcosRAT

Java Script (JS) js c3dce4b11c28823d58ca1c10425bef7cba0c19ed7c5c02546c86b77b870f6730

(this sample)

  
Delivery method
Distributed via e-mail attachment

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