MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0fa25fe613da2ec00cd97ac83ccf8e5b510a423ff460be030d71cdc48befc06f. 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 1 YARA 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0fa25fe613da2ec00cd97ac83ccf8e5b510a423ff460be030d71cdc48befc06f
SHA3-384 hash: 7efb6e51e3d0856be019b80eb0364e170f0b4e235510c3a04b585f9bd305d85754477f436169171595af7308537fba41
SHA1 hash: 70fdfa49a7f29d734c824c6103722328f2b93c42
MD5 hash: 20e50c44d91f9e0bdc4a24ba67e4c667
humanhash: diet-failed-avocado-sad
File name:2026? 2?? ?? ?? ?.JS.js
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:8'604'230 bytes
First seen:2026-06-10 23:55:07 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 196608:ugaMvMMdENifvYqJeQtsX370eAJayP9Qo2qrglTOyVmou+6hlmY3o1JEZXzeMSTM:xoN2q5Cmgo2RSTM
TLSH T1B28696700354C672F3589EE626A97168140D4DCF98F9A7057AAEC7B4127E832E37B7B0
Magika txt
Reporter abuse_ch
Tags:js RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
66.63.170.28:2404

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
66.63.170.28:2404 https://threatfox.abuse.ch/ioc/1825811/

Intelligence

File Origin
# of uploads :
1
# of downloads :
171
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a29f97d34eaf30d8ce4b019
Tags:
crypted cobalt remo blic
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug base64 dropper evasive obfuscated packed repaired
Link:
https://www.filescan.io/uploads/6a29f9761f652d686576c463/reports/0b1303bc-6908-42de-b4e0-8c9814c04c1a/overview
Verdict:
Suspicious
Labled as:
JS/Agent.DLR
Link:
https://www.hybrid-analysis.com/sample/0fa25fe613da2ec00cd97ac83ccf8e5b510a423ff460be030d71cdc48befc06f
Verdict:
Malicious
File Type:
js
First seen:
2026-06-10T20:20:00Z UTC
Last seen:
2026-06-10T20:35:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/0fa25fe613da2ec00cd97ac83ccf8e5b510a423ff460be030d71cdc48befc06f/results?tab=lookup
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
evad.troj.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1926296
Signature
Attempt to bypass Chrome Application-Bound Encryption
Benign windows process drops PE files
Detected Remcos RAT
Found direct / indirect Syscall (likely to bypass EDR)
Found hidden mapped module (file has been removed from disk)
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Sigma detected: Execution from Suspicious Folder
Sigma detected: Potential Data Stealing Via Chromium Headless Debugging
Sigma detected: Remcos
Sigma detected: Suspicious Program Location with Network Connections
Sigma detected: Windows Shell/Scripting Application File Write to Suspicious Folder
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Unusual module load detection (module proxying)
Uses the Windows Restart Manager Abuse for Browser Credential File unlocking
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
WScript reads language and country specific registry keys (likely country aware script)
Yara detected Lua decrypt and execute
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1926296 Sample: 2026_ 2__ __ __ _.JS.js Startdate: 11/06/2026 Architecture: WINDOWS Score: 100 43 Suricata IDS alerts for network traffic 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 Yara detected Lua decrypt and execute 2->47 49 8 other signatures 2->49 8 wscript.exe 1 4 2->8         started        process3 file4 27 C:\Users\Public\...\ZMORZIPYVJJQTMDS.exe, PE32+ 8->27 dropped 29 C:\Users\Public\...\ZMORZIPYVJJQTMDS.ttf, ASCII 8->29 dropped 51 Benign windows process drops PE files 8->51 53 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->53 55 WScript reads language and country specific registry keys (likely country aware script) 8->55 12 ZMORZIPYVJJQTMDS.exe 10 24 8->12         started        signatures5 process6 dnsIp7 39 66.63.170.28, 2404, 49754, 49755 AS-COLOCROSSING-HostPapaUS Canada 12->39 41 127.0.0.1 unknown unknown 12->41 31 C:\Users\user\AppData\...\cookies.sqlite-shm, data 12->31 dropped 33 C:\Users\user\AppData\...\Login Data.tmp, SQLite 12->33 dropped 35 C:\Users\user\AppData\...\Login Data.tmp, SQLite 12->35 dropped 37 3 other files (2 malicious) 12->37 dropped 57 Detected Remcos RAT 12->57 59 Attempt to bypass Chrome Application-Bound Encryption 12->59 61 Tries to harvest and steal browser information (history, passwords, etc) 12->61 63 9 other signatures 12->63 17 msedge.exe 35 12->17         started        19 chrome.exe 1 12->19         started        21 conhost.exe 12->21         started        file8 signatures9 process10 process11 23 msedge.exe 2 17->23         started        25 conhost.exe 19->25         started       
Score:
98%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/0fa25fe613da2ec00cd97ac83ccf8e5b510a423ff460be030d71cdc48befc06f
Gathering data
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/0fa25fe613da2ec00cd97ac83ccf8e5b510a423ff460be030d71cdc48befc06f/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=b6rf7zqt3ixmadgzpledzt4olniquqr76rql4aynohg4jc7pybxq._file
Verdict:
malicious
Label(s):
donutloader
Create hunting rule
remcos
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:donutloader family:remcos botnet:remotehost execution loader rat suricata
Link:
https://tria.ge/reports/260610-3yqldsht7l/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Detects DonutLoader
Family: DonutLoader
Family: Remcos
Suricata alert: REMCOS RAT Malware Inbound C2 Communication
Suricata alert: REMCOS RAT Malware Outbound C2 Communication
Malware Config
C2 Extraction:
66.63.170.28:2404
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.75
Link:
https://yomi.yoroi.company/submissions/0fa25fe613da2ec00cd97ac83ccf8e5b510a423ff460be030d71cdc48befc06f

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
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
Rule name:Sus_All_Windows_PE_Malware
Create hunting rule
Author:DiegoAnalytics
Description:Detects Windows PE malware of all types, avoids non-executables like .html
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
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
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:VECT_Ransomware
Create hunting rule
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
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_rat_unpacked
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research

File information

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

Comments