MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d77e203141b0031c5aed784d83065163ffa881b0ef18de527763e1a7da8b70ff. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d77e203141b0031c5aed784d83065163ffa881b0ef18de527763e1a7da8b70ff
SHA3-384 hash: 537fe67586df70cf8dc577c90bb62850d51e33b891b18ca233b4c1e32bd247c81bd3cefbc66c40b1734498a6d6779a7d
SHA1 hash: d7744056c7cfbd5a771df02047925cf8ca4ce1ca
MD5 hash: 62d0033129340a84ae078c211a36a461
humanhash: green-double-butter-mirror
File name:onceufeelgood.hta
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:14'859 bytes
First seen:2025-03-12 11:51:45 UTC
Last seen:Never
File type:HTML Application (hta) hta
MIME type:text/html
ssdeep 96:LOFtZAs0vOG5wnZfqeneZDKjDKEyMeL+Vi+:CP+YGoZ18DKjDKEyMeLS9
TLSH T13062A5061C22EDAF53B976EC51FD27C499DE473A0145256231DF59A22BC868C80DF663
Magika html
Reporter abuse_ch
Tags:hta RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
111
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d17b984fd7d3fd0e088290
Tags:
obfuscate shell sage
Result
Verdict:
Malicious
File Type:
HTA File - Malicious
Link:
https://app.docguard.net/d77e203141b0031c5aed784d83065163ffa881b0ef18de527763e1a7da8b70ff/results/dashboard
Payload URLs
URL
File name
http://172.245.191.88/xampp/umo/seethenewgenerationnextgoodforbest.gIF
HTA File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
powershell
Link:
https://www.filescan.io/uploads/67d1756f3c5f644bd94f1c1b/reports/cf6fdd45-ebe9-492d-9433-be1940ac0a13/overview
Verdict:
Malicious
Labled as:
VBS.Asthma.2.27002B1E
Link:
https://www.hybrid-analysis.com/sample/d77e203141b0031c5aed784d83065163ffa881b0ef18de527763e1a7da8b70ff
Result
Verdict:
MALICIOUS
Details
Base64 Encoded URL
Detected an ANSI or UNICODE http:// or https:// base64 encoded URL prefix.
Result
Threat name:
Cobalt Strike
Create hunting rule
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1636141
Signature
Detected Cobalt Strike Beacon
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Potential malicious VBS script found (suspicious strings)
PowerShell case anomaly found
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Potentially Suspicious PowerShell Child Processes
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Suspicious MSHTA Child Process
Sigma detected: WScript or CScript Dropper
Suspicious command line found
Suspicious execution chain found
Suspicious powershell command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1636141 Sample: onceufeelgood.hta Startdate: 12/03/2025 Architecture: WINDOWS Score: 100 59 Malicious sample detected (through community Yara rule) 2->59 61 Multi AV Scanner detection for submitted file 2->61 63 Yara detected Powershell download and execute 2->63 65 8 other signatures 2->65 10 mshta.exe 1 2->10         started        13 svchost.exe 1 1 2->13         started        process3 dnsIp4 73 Suspicious command line found 10->73 75 PowerShell case anomaly found 10->75 16 cmd.exe 1 10->16         started        49 127.0.0.1 unknown unknown 13->49 signatures5 process6 signatures7 51 Detected Cobalt Strike Beacon 16->51 53 Suspicious powershell command line found 16->53 55 Wscript starts Powershell (via cmd or directly) 16->55 57 PowerShell case anomaly found 16->57 19 powershell.exe 3 44 16->19         started        24 conhost.exe 16->24         started        process8 dnsIp9 47 172.245.191.88, 49718, 80 AS-COLOCROSSINGUS United States 19->47 39 C:\...\seethenewgenerationnextgoodforbest.vbs, Unicode 19->39 dropped 41 C:\Users\user\AppData\...\ucgw4vby.cmdline, Unicode 19->41 dropped 67 Potential malicious VBS script found (suspicious strings) 19->67 69 Found suspicious powershell code related to unpacking or dynamic code loading 19->69 71 Loading BitLocker PowerShell Module 19->71 26 wscript.exe 1 19->26         started        29 csc.exe 3 19->29         started        file10 signatures11 process12 file13 77 Detected Cobalt Strike Beacon 26->77 79 Suspicious powershell command line found 26->79 81 Wscript starts Powershell (via cmd or directly) 26->81 83 2 other signatures 26->83 32 powershell.exe 15 15 26->32         started        43 C:\Users\user\AppData\Local\...\ucgw4vby.dll, PE32 29->43 dropped 35 cvtres.exe 1 29->35         started        signatures14 process15 dnsIp16 45 198.23.187.151, 49722, 49724, 80 AS-COLOCROSSINGUS United States 32->45 37 conhost.exe 32->37         started        process17
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/d77e203141b0031c5aed784d83065163ffa881b0ef18de527763e1a7da8b70ff
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d77e203141b0031c5aed784d83065163ffa881b0ef18de527763e1a7da8b70ff/
Threat name:
Script-WScript.Trojan.Asthma
Create hunting rule
Status:
Malicious
First seen:
2025-03-10 19:45:51 UTC
File Type:
Text (HTML)
Extracted files:
1
AV detection:
8 of 38 (21.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=257camkbwabrywxnpbgygbsrmp72ranq54mn4utxmpq2pwulod7q._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
defense_evasion discovery execution
Link:
https://tria.ge/reports/250312-n1rtxay1ex/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Blocklisted process makes network request
Evasion via Device Credential Deployment
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/d77e203141b0031c5aed784d83065163ffa881b0ef18de527763e1a7da8b70ff

File information

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

Web download

RemcosRAT

HTML Application (hta) hta d77e203141b0031c5aed784d83065163ffa881b0ef18de527763e1a7da8b70ff

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3473635/
  
Delivery method
Distributed via web download

Comments