🤲🏼 NEW | abuse.ch Community Hub! Earn recognition 🏅 for the malware intelligence you share, climb the leaderboards 📈, and connect with like-minded contributors who share your hunting focus 🤝. Ready to unlock your profile? Go to the Community Hub →

MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37ad621bd1713295abb9630d8dd8a6e62b805ac08b2c2bc7952b6b2ca6c81418. 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 30 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 37ad621bd1713295abb9630d8dd8a6e62b805ac08b2c2bc7952b6b2ca6c81418
SHA3-384 hash: f7495ce0469a4cd5f22605a9ee8f801147e6c7e9283389684cadd936c0dceff6ecd5ebe56761eac08b6411c837bc4806
SHA1 hash: 49a42b3e3da8e7f771990236ff5953f5c48d620a
MD5 hash: 6bbe6413f9450671cc70f8c4887033b6
humanhash: two-jersey-lion-nine
File name:Konfirme Bekleyen Rezervasyonlar Listesi.JS
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:4'244'896 bytes
First seen:2026-10-04 07:16:05 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:application/javascript
ssdeep 98304:WvlMe2xB0md0zH9xKF1jVC2z0sYhW5nbzQsfbxJRReH5kq/9jlIJWnBAhx2d9MKT:ilMe2T0mSzHKr0+YhW9bzQsN/0ZkC9Ey
TLSH T1F816D4511F9791327720AB8D963AD970954AD05325FACF3030BDE21B762CD4BA31FAE2
Magika txt
Reporter abuse_ch
Tags:geo js RAT RemcosRAT TUR

Intelligence

File Origin
# of uploads :
1
# of downloads :
131
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6acf3ecd6f551121ba14faaf
Tags:
autorun virus sage blic
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug dropper evasive obfuscated packed repaired
Link:
https://www.filescan.io/uploads/6ac1fe379b7eea2e048d4b13/reports/503be24b-6330-4848-8459-dcd258dd00fc/overview
Verdict:
Malicious
Labled as:
GT:JS.Trojan.Downloader.5124
Link:
https://www.hybrid-analysis.com/sample/37ad621bd1713295abb9630d8dd8a6e62b805ac08b2c2bc7952b6b2ca6c81418
Verdict:
Malicious
File Type:
js
First seen:
2026-10-03T21:22:00Z UTC
Last seen:
2026-10-05T03:54:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/37ad621bd1713295abb9630d8dd8a6e62b805ac08b2c2bc7952b6b2ca6c81418/results?tab=lookup
Result
Threat name:
DonutLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1981899
Signature
C2 URLs / IPs found in malware configuration
Detected Windows Script Host debugger hammering
Found malware configuration
Hides threads from debuggers
JavaScript source code contains call to eval() to check own source code (likely for evading instrumentation)
JavaScript source code contains functionality to generate code involving a shell, file or stream
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Suspicious Command Patterns In Scheduled Task Creation
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Unusual module load detection (module proxying)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses whoami command line tool to query computer and username
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 DonutLoader
Yara detected Lua decrypt and execute
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1981899 Sample: Konfirme Bekleyen Rezervasy... Startdate: 04/10/2026 Architecture: WINDOWS Score: 100 61 mfa-ankara.sytes.net 2->61 67 Suricata IDS alerts for network traffic 2->67 69 Found malware configuration 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 11 other signatures 2->73 10 wscript.exe 1 4 2->10         started        14 cmd.exe 1 4 2->14         started        signatures3 process4 file5 57 C:\Users\user\Documents\VKBPYKNBPRKLRTEH, ASCII 10->57 dropped 81 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->81 83 WScript reads language and country specific registry keys (likely country aware script) 10->83 85 Detected Windows Script Host debugger hammering 10->85 16 HETRLKRPBNKYPBKV.exe 2 3 10->16         started        21 cmd.exe 1 14->21         started        23 conhost.exe 14->23         started        signatures6 process7 dnsIp8 59 mfa-ankara.sytes.net 185.47.174.97, 443, 49728, 49729 CLOUDWEBMANAGE-IL-FRUS Germany 16->59 55 C:\Users\user\...\VKBPYKNBPRKLRTEH.url, MS 16->55 dropped 63 Hides threads from debuggers 16->63 65 Unusual module load detection (module proxying) 16->65 25 cmd.exe 1 16->25         started        28 cmd.exe 1 16->28         started        30 cmd.exe 1 16->30         started        32 conhost.exe 16->32         started        34 HETRLKRPBNKYPBKV.exe 1 21->34         started        36 conhost.exe 21->36         started        file9 signatures10 process11 signatures12 75 Uses schtasks.exe or at.exe to add and modify task schedules 25->75 77 Uses whoami command line tool to query computer and username 25->77 38 whoami.exe 1 25->38         started        40 schtasks.exe 1 28->40         started        42 schtasks.exe 1 30->42         started        79 Hides threads from debuggers 34->79 44 cmd.exe 1 34->44         started        47 cmd.exe 1 34->47         started        49 conhost.exe 34->49         started        process13 signatures14 87 Uses whoami command line tool to query computer and username 44->87 51 whoami.exe 1 44->51         started        53 schtasks.exe 1 47->53         started        process15
Gathering data
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/37ad621bd1713295abb9630d8dd8a6e62b805ac08b2c2bc7952b6b2ca6c81418/
Threat name:
Script-JS.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-10-04 07:20:51 UTC
File Type:
Binary
AV detection:
10 of 38 (26.32%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=g6wweg6roezjlk5zmmgy3wfg4yvyawwarmwcxr4vfnvszjwicqma._file
Verdict:
malicious
Label(s):
Remcos
Create hunting rule
Link:
https://reports.threatray.com/1eb7eed7-4057-4ec3-9b64-b2b17cfa7ce9
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence
Link:
https://tria.ge/reports/261004-h59ydsysbx/
Behaviour
Modifies registry class
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Executes a command shell one-liner
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks computer location settings
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/37ad621bd1713295abb9630d8dd8a6e62b805ac08b2c2bc7952b6b2ca6c81418

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: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:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:MULTI_Malware_AgentTesla_ForgeAuto_ed343f78_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects AgentTesla (inconnu, etat extrait)
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
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:SUSP_VBS_Randomized_ActiveX_Downloader
Create hunting rule
Author:Marjoriefort
Description:Dropper VBS obfusque : ActiveXObject a identifiant randomise (20 MAJ), SaveToFile, .Run
Reference:Veille fraicheur 2026-09-14 / grappe VBS randomisee
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_Clipboard_Clipper_Thengavar
Create hunting rule
Author:Thengavar
Description:Detects malware manipulating the Windows clipboard for clipping or crypto stealing attacks
Rule name:WIN_Malware_Unknown_ForgeAuto_74566f98
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_79234c04
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
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