MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77b3de2e3995a4d701395c06bc17bd9dd0eeddb90fed18412e9532bea2e5a19a. 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

SHA256 hash:	77b3de2e3995a4d701395c06bc17bd9dd0eeddb90fed18412e9532bea2e5a19a
SHA3-384 hash:	cea976b969131c799c9c9de627dd0585f5178556779f998fd5fed0557c351b9e6253c2b86477793f1c132594ab08cdae
SHA1 hash:	d3f56de0d7431d53bc4d56046cd41500ba650ac7
MD5 hash:	51440bc9a7c70285031ffb35f52dd0f3
humanhash:	venus-utah-triple-football
File name:	K-2-1-13ab-Coal Mill Grinding Rings.js
Download:	download sample
Signature	RemcosRAT Alert Create hunting rule
File size:	296'145 bytes
First seen:	2026-09-03 12:33:10 UTC
Last seen:	Never
File type:	js
MIME type:	text/plain
ssdeep	1536:wPRpmpjTW9AsuI5Txyz8tMErJLvJG9lHK5rROjgQnrXp:kRpmpjTW9AsubzMkOrRfQnrp
TLSH	T1D954E9C1D812A754A9FA362DDDBF0BC8F2F20B13D619715579BD9422CFE184B6430CAA
Magika	javascript
Reporter	abuse_ch
Tags:	js RemcosRAT

Intelligence

---

File Origin

# of uploads :

1

# of downloads :

152

Origin country :

SE

Vendor Threat Intelligence

ACCE Unknown

No detections

ClamAV Detected

Detection(s):

SecuriteInfo.com.VBS.Obfus-201.UNOFFICIAL

Alert

Create hunting rule

FileScan.IO Likely Malicious

Verdict:

Likely Malicious

Threat level:

  7.5/10

Confidence:

100%

Tags:

repaired

Link:

https://www.filescan.io/uploads/6a9969464d63d906524a0fe8/reports/1eff0b45-8ba5-49ce-a087-217b74f6fd5d/overview

Hybrid Analysis JS/TrojanDownloader.Agent

Verdict:

Malicious

Labled as:

JS/TrojanDownloader.Agent

Link:

https://www.hybrid-analysis.com/sample/77b3de2e3995a4d701395c06bc17bd9dd0eeddb90fed18412e9532bea2e5a19a

Kaspersky OpenTIP Malicious

Verdict:

Malicious

File Type:

js

First seen:

2026-09-03T08:49:00Z UTC

Last seen:

2026-09-03T09:30:00Z UTC

Hits:

~100

Link:

https://opentip.kaspersky.com/77b3de2e3995a4d701395c06bc17bd9dd0eeddb90fed18412e9532bea2e5a19a/results?tab=lookup

Joe Sandbox Remcos

Result

Threat name:

Remcos

Alert

Create hunting rule

Detection:

malicious

Classification:

rans.troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1968008

Signature

Antivirus detection for URL or domain

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 register a low level keyboard hook

Contains functionalty to change the wallpaper

Creates processes via WMI

Detected Remcos RAT

Found evasive API chain checking for user administrative privileges

Found malware configuration

Found stalling execution ending in API Sleep call

Injects a PE file into a foreign processes

Javascript file is likely language aware (will only work on specific systems)

JavaScript source code contains functionality to generate code involving a shell, file or stream

JavaScript source code contains functionality to generate code involving HTTP requests or file downloads

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Obfuscated command line found

Performs DNS queries to domains with low reputation

Sigma detected: Potential Data Stealing Via Chromium Headless Debugging

Sigma detected: Potential PowerShell Command Line Obfuscation

Sigma detected: Remcos

Sigma detected: WScript or CScript Dropper

Suricata IDS alerts for network traffic

Suspicious execution chain found

Tries to harvest and steal browser information (history, passwords, etc)

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 Powershell download and execute

Yara detected Remcos RAT

Yara detected UAC Bypass using CMSTP

Behaviour

Behavior Graph:

Download SVG

Nucleon Malprob Susipicious

Score:

46%

Verdict:

Susipicious

File Type:

SCRIPT

Link:

https://malprob.io/report/77b3de2e3995a4d701395c06bc17bd9dd0eeddb90fed18412e9532bea2e5a19a

Malva.RE

Gathering data

CERT.PL MWDB remcos

Detection:

remcos

Alert

Create hunting rule

Link:

https://mwdb.cert.pl/sample/77b3de2e3995a4d701395c06bc17bd9dd0eeddb90fed18412e9532bea2e5a19a/

ReversingLabs TitaniumCloud

Gathering data

Spamhaus Hash Blocklist Suspicious file

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=o6z54lrzswsnoajzlqdlyf55txio5xnzb7wrqqjosuzl5ixfugna._file

Threatray Remcos

Verdict:

malicious

Label(s):

Remcos

Alert

Create hunting rule

Link:

https://reports.threatray.com/ad5676db-05e3-45c1-94f4-02c3c53ce5d6

Hatching Triage remcos

Result

Malware family:

remcos

Alert

Create hunting rule

Score:

  10/10

Tags:

family:remcos botnet:log_august collection credential_access discovery execution rat stealer

Link:

https://tria.ge/reports/260903-prwl6sgq8z/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies data under HKEY_USERS

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

outlook_office_path

Browser Information Discovery

Command and Scripting Interpreter: JavaScript

Enumerates physical storage devices

System Location Discovery: System Language Discovery

System Time Discovery

Drops file in Program Files directory

Drops file in Windows directory

Suspicious use of SetThreadContext

Accesses Microsoft Outlook profiles

Command and Scripting Interpreter: PowerShell

Loads dropped DLL

Badlisted process makes network request

Uses browser remote debugging

Family: Remcos

Process spawned unexpected child process

Malware Config

C2 Extraction:

thrillermotion.4nmn.com:2022

Dropper Extraction:

https://lively-fog-af49.pablosoftwareplus.workers.dev/vMmrQ

VirusTotal

Please note that we are no longer able to provide a coverage score for Virus Total.

YOROI YOMI Suspicious File

Threat name:

Suspicious File

Score:

0.55

Link:

https://yomi.yoroi.company/submissions/77b3de2e3995a4d701395c06bc17bd9dd0eeddb90fed18412e9532bea2e5a19a