MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7b92ba4332b2c6ad2faacb11be86e26c049cfb8258331fa4b92d06ae2edfd6a3. 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: 11


Intelligence 11 IOCs YARA 26 File information Comments

SHA256 hash: 7b92ba4332b2c6ad2faacb11be86e26c049cfb8258331fa4b92d06ae2edfd6a3
SHA3-384 hash: 2cd1d3b59b60f1f33a58be83cfbcd489b3e65e1a7654e4b924e47a5962ad331517e46dc9f121bcae23a5653a87c125cb
SHA1 hash: ab44ef217e920401dadfa1ee7cb51c0ad1750bf0
MD5 hash: c60523cae498e4325896acd5f0482dc7
humanhash: xray-utah-delaware-red
File name:TELEX_CONFIRMATION_PDF.js
Download: download sample
Signature RemcosRAT
File size:14'942'664 bytes
First seen:2026-06-22 15:16:36 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 1536:lTwq3qXEh4CI9ItaBR6fPCZAX8KMGtlANRIkioWPj68WzCkEayAz70SsLdafL8ct:++SF
Threatray 84 similar samples on MalwareBazaar
TLSH T14BE6F601D158AB8DBCB78E32DD11EE50094EB6D8A1FCEDA5010C72C53B7CD92A9B9973
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika powershell
Reporter abuse_ch
Tags:js RAT RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
119
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
94.9%
Tags:
autorun xtreme shell sage
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade repaired
Verdict:
Malicious
File Type:
js
First seen:
2026-06-22T05:47:00Z UTC
Last seen:
2026-06-24T12:26:00Z UTC
Hits:
~1000
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Attempt to bypass Chrome Application-Bound Encryption
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Drops script or batch files to the startup folder
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
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
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Drops script at startup location
Sigma detected: Potential Data Stealing Via Chromium Headless Debugging
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Remcos
Sigma detected: Suspicious Environment Variable Has Been Registered
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
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 Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1932043 Sample: TELEX_CONFIRMATION_PDF.js Startdate: 22/06/2026 Architecture: WINDOWS Score: 100 52 resc.cloudinary.com.cdn.cloudflare.net 2->52 54 res.cloudinary.com 2->54 56 4 other IPs or domains 2->56 64 Suricata IDS alerts for network traffic 2->64 66 Found malware configuration 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 15 other signatures 2->70 9 powershell.exe 14 15 2->9         started        13 wscript.exe 13 3 2->13         started        16 wscript.exe 1 2->16         started        signatures3 process4 dnsIp5 62 resc.cloudinary.com.cdn.cloudflare.net 104.16.78.6, 443, 49704, 49708 CLOUDFLARENET-CloudflareIncUS Canada 9->62 86 Writes to foreign memory regions 9->86 88 Modifies the context of a thread in another process (thread injection) 9->88 90 Injects a PE file into a foreign processes 9->90 92 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 9->92 18 MSBuild.exe 5 10 9->18         started        23 conhost.exe 9->23         started        48 TELEX_CONFIRMATION....js:Zone.Identifier, ASCII 13->48 dropped 50 C:\Users\user\...\TELEX_CONFIRMATION_PDF.js, Unicode 13->50 dropped 94 Suspicious powershell command line found 13->94 96 Wscript starts Powershell (via cmd or directly) 13->96 98 Drops script or batch files to the startup folder 13->98 100 4 other signatures 13->100 25 powershell.exe 16->25         started        file6 signatures7 process8 dnsIp9 58 64.89.160.198, 49705, 49706, 49707 GHOSTYNETWORKSUS Luxembourg 18->58 60 127.0.0.1 unknown unknown 18->60 40 C:\Users\user\AppData\...\cookies.sqlite-shm, data 18->40 dropped 42 C:\Users\user\AppData\...\Login Data.tmp, SQLite 18->42 dropped 44 C:\Users\user\AppData\...\Login Data.tmp, SQLite 18->44 dropped 46 2 other files (1 malicious) 18->46 dropped 72 Contains functionality to bypass UAC (CMSTPLUA) 18->72 74 Detected Remcos RAT 18->74 76 Attempt to bypass Chrome Application-Bound Encryption 18->76 84 8 other signatures 18->84 27 msedge.exe 7 18->27         started        29 chrome.exe 1 18->29         started        78 Writes to foreign memory regions 25->78 80 Modifies the context of a thread in another process (thread injection) 25->80 82 Injects a PE file into a foreign processes 25->82 31 MSBuild.exe 1 25->31         started        34 conhost.exe 25->34         started        file10 signatures11 process12 signatures13 36 msedge.exe 27->36         started        38 conhost.exe 29->38         started        102 Tries to harvest and steal browser information (history, passwords, etc) 31->102 process14
Gathering data
Threat name:
Win32.Trojan.Kepavll
Status:
Malicious
First seen:
2026-06-22 15:26:41 UTC
File Type:
Text (JavaScript)
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remote execution rat
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Suspicious use of SetThreadContext
Drops startup file
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Family: Remcos
Process spawned unexpected child process
Malware Config
C2 Extraction:
64.89.160.198:8080
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:Check_OutputDebugStringA_iat
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_SQLQuery_ConfidentialDataStore
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:NET
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:Remcos_unpacked_PulseIntel
Author:PulseIntel
Description:Remcos Payload
Rule name:Sus_All_Windows_PE_Malware
Author:DiegoAnalytics
Description:Detects Windows PE malware of all types, avoids non-executables like .html
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:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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_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:WIN_WebSocket_Base64_C2_20250726
Author:dogsafetyforeverone
Description:Detects configuration strings used by malware to specify WebSocket command-and-control endpoints inside Base64-encoded data. It looks for prefixes such as '#ws://' or '#wss://' that were found in QuasarRAT configuration data.
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