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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 59d8e7c85e8d1eefcd71c27d522a4877d7017744e54b60d2573e97e25d22ad96. 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: 12


Intelligence 12 IOCs YARA 34 File information Comments

SHA256 hash: 59d8e7c85e8d1eefcd71c27d522a4877d7017744e54b60d2573e97e25d22ad96
SHA3-384 hash: 90ff2cf1dfda0bae743aa6004eb084fdb0d4606dee7b050b7ca97bfdf0c242c51ed1639f17c26e2c32b22838ee8c6f1f
SHA1 hash: 3772b81cbb6c59fa20c9f1a83cf6596eb08ed160
MD5 hash: 9f49c5a03817bc623893a25ad901a352
humanhash: mirror-fillet-wolfram-hamper
File name:Төлемді растау.js
Download: download sample
Signature RemcosRAT
File size:1'100'454 bytes
First seen:2026-10-26 07:35:07 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:r9oClp473F12EkMZnAk6dXomuBxLZ0iO2Lo4Ps:u0aLF7Zymr7ezB2s
TLSH T1073502300B822FB58EBB050C90FD1706DED23E5F4A6AB64D9F93EBC51EF251A0616197
Magika scss
Reporter abuse_ch
Tags:js RAT RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
150
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
97.4%
Tags:
autorun cobalt
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 corrupted dropper evasive evasive explorer lolbin obfuscated obfuscated overlay ping repaired
Verdict:
Malicious
File Type:
js
First seen:
2026-10-26T02:56:00Z UTC
Last seen:
2026-10-27T05:48:00Z UTC
Hits:
~100
Result
Threat name:
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus detection for dropped file
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to register a low level keyboard hook
Contains functionality to steal Internet Explorer form passwords
Contains functionalty to change the wallpaper
Detected Remcos RAT
Found malware configuration
Injects code into the Windows Explorer (explorer.exe)
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Tries to harvest and steal browser information (history, passwords, etc)
Unusual module load detection (module proxying)
Uses dynamic DNS services
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Windows Scripting host queries suspicious COM object (likely to drop second stage)
WScript reads language and country specific registry keys (likely country aware script)
Yara detected JavaScript decode and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1991766 Sample: #U0422#U04e9#U043b#U0435#U0... Startdate: 26/10/2026 Architecture: WINDOWS Score: 100 49 1remz.duckdns.org 2->49 51 pki-goog.l.google.com 2->51 53 c.pki.goog 2->53 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 Antivirus detection for dropped file 2->63 67 8 other signatures 2->67 8 explorer.exe 2->8         started        10 wscript.exe 1 3 2->10         started        14 DiskService.exe 3 2->14         started        16 3 other processes 2->16 signatures3 65 Uses dynamic DNS services 49->65 process4 file5 18 DiskService.exe 5 10 8->18         started        47 C:\Users\user\AppData\...\DiskService.exe, PE32 10->47 dropped 77 Benign windows process drops PE files 10->77 79 JScript performs obfuscated calls to suspicious functions 10->79 81 Uses ping.exe to sleep 10->81 85 4 other signatures 10->85 23 PING.EXE 1 10->23         started        25 explorer.exe 1 10->25         started        83 Detected Remcos RAT 14->83 27 conhost.exe 14->27         started        29 conhost.exe 1 16->29         started        31 conhost.exe 16->31         started        33 conhost.exe 16->33         started        signatures6 process7 dnsIp8 55 1remz.duckdns.org 194.116.236.94, 49722, 49723, 8741 WHITELABELUS Turkey 18->55 39 C:\ProgramData\SyncAgent35\SetupTool76.exe, PE32 18->39 dropped 41 C:\Users\user\AppData\...\Login Data.tmp, SQLite 18->41 dropped 43 C:\Users\user\AppData\...\Login Data.tmp, SQLite 18->43 dropped 45 C:\Users\user\...\Login Data For Account.tmp, SQLite 18->45 dropped 69 Antivirus detection for dropped file 18->69 71 Multi AV Scanner detection for dropped file 18->71 73 Contains functionality to bypass UAC (CMSTPLUA) 18->73 75 6 other signatures 18->75 35 conhost.exe 18->35         started        57 127.0.0.1 unknown unknown 23->57 37 conhost.exe 23->37         started        file9 signatures10 process11
Verdict:
Malware
YARA:
2 match(es)
Tags:
Base64 Block Base64 Payload Contains Base64 Block Executable Javascript JS Emulation Trace Managed .NET PE (Portable Executable) PE Memory-Mapped (Dump) Scripting.FileSystemObject T1059.007 WScript.Shell
Threat name:
Text.Dropper.Generic
Status:
Suspicious
First seen:
2026-10-26 07:35:41 UTC
File Type:
Text
AV detection:
2 of 36 (5.56%)
Threat level:
  3/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery execution persistence privilege_escalation rat spyware stealer
Behaviour
Modifies registry class
Runs ping.exe
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
outlook_office_path
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Drops file in Windows directory
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks installed software on the system
Checks computer location settings
Creates a file in the Startup directory
Executes dropped EXE
Reads user/profile data of web browsers
Family: Remcos
Malware Config
C2 Extraction:
1remz.duckdns.org:8741
Please note that we are no longer able to provide a coverage score for Virus Total.

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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:pe_detect_tls_callbacks
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Rule name:Remcos_unpacked_PulseIntel
Author:PulseIntel
Description:Remcos Payload
Rule name:SUSP_Script_PowerShell_Hidden_Launcher
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
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:telebot_framework
Author:vietdx.mb
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/
Rule name:VECT_Ransomware
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:Windows_Trojan_Remcos_921ef449
Author:Elastic Security
Rule name:Windows_Trojan_Remcos_b296e965
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:Win_Clipboard_Clipper_Thengavar
Author:Thengavar
Description:Detects malware manipulating the Windows clipboard for clipping or crypto stealing attacks
Rule name:WIN_Malware_Unknown_ForgeAuto_2ffc3572
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_43faefd2
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_5001c94c
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_74566f98
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_79234c04
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_f1079127
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_rat_unpacked
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Author:Matthew @ Embee_Research

File information


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

Comments