MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 641a4f7459e861fe20b55f1e34a990412780a392985236b1ace3c6508ec95fd8. 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: 13


Intelligence 13 IOCs YARA 16 File information Comments
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SHA256 hash: 641a4f7459e861fe20b55f1e34a990412780a392985236b1ace3c6508ec95fd8
SHA3-384 hash: 736cd11841fd2bbc0cb5f83ddc43eedf281f912b0c2b9c94987ac60c95bb83e68e36ea6de100e9f1fd2dc1a11fd344d3
SHA1 hash: 51b61c0b20d538856aceab4a6f49dc6337c0ea8e
MD5 hash: 10b688ea0920aad2bfe7d6d40dc90173
humanhash: johnny-neptune-tennessee-bluebird
File name:goodthingsflowersgivenbestforgetcuiteflowers.hta
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:17'384 bytes
First seen:2025-02-26 08:37:33 UTC
Last seen:Never
File type:HTML Application (hta) hta
MIME type:text/html
ssdeep 48:3uIWfm9SYIavfm9SMMMute5sgDQfsAQ6xys16IRkIv5Ifz/fE0fm9SByI0PG:+jKV/K4Mute5sgDQkAF8NRUiKfL+
Threatray 456 similar samples on MalwareBazaar
TLSH T1B17223091C1EFFA84384A0E9B2ED48E2646D53FE15562502F1AD47D3A7A899CCDFC1D2
Magika html
Reporter abuse_ch
Tags:hta RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
75
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Script.SNH-gen.21764.19628.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67bed33928ab76d43a5d3936
Tags:
obfuscate shell sage
Result
Verdict:
Malicious
File Type:
HTA File - Malicious
Link:
https://app.docguard.net/641a4f7459e861fe20b55f1e34a990412780a392985236b1ace3c6508ec95fd8/results/dashboard
Payload URLs
URL
File name
http://23.95.60.80/188/goodthingsflowersgivenbestforgetcuiteflowers.gIF
HTA File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
powershell
Link:
https://www.filescan.io/uploads/67bed2faf8ac7ec59ae533df/reports/0741f5e8-2cde-40c5-8604-8549095e563b/overview
Verdict:
Malicious
Labled as:
VBS.Asthma.2.1566110B
Link:
https://www.hybrid-analysis.com/sample/641a4f7459e861fe20b55f1e34a990412780a392985236b1ace3c6508ec95fd8
Result
Verdict:
MALICIOUS
Details
Base64 Encoded URL
Detected an ANSI or UNICODE http:// or https:// base64 encoded URL prefix.
Result
Threat name:
Cobalt Strike, Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1624435
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Detected Cobalt Strike Beacon
Detected Remcos RAT
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
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: Remcos
Sigma detected: Suspicious MSHTA Child Process
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious command line found
Suspicious execution chain found
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Uses dynamic DNS services
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 decode and execute
Yara detected Powershell download and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1624435 Sample: goodthingsflowersgivenbestf... Startdate: 26/02/2025 Architecture: WINDOWS Score: 100 59 pisses.duckdns.org 2->59 61 geoplugin.net 2->61 71 Suricata IDS alerts for network traffic 2->71 73 Found malware configuration 2->73 75 Malicious sample detected (through community Yara rule) 2->75 79 16 other signatures 2->79 12 mshta.exe 1 2->12         started        signatures3 77 Uses dynamic DNS services 59->77 process4 signatures5 107 Suspicious command line found 12->107 109 PowerShell case anomaly found 12->109 15 cmd.exe 1 12->15         started        process6 signatures7 119 Detected Cobalt Strike Beacon 15->119 121 Suspicious powershell command line found 15->121 123 Wscript starts Powershell (via cmd or directly) 15->123 125 PowerShell case anomaly found 15->125 18 powershell.exe 3 43 15->18         started        23 conhost.exe 15->23         started        process8 dnsIp9 63 23.95.60.80, 49705, 49707, 80 AS-COLOCROSSINGUS United States 18->63 53 goodthingsflowersg...rgetcuiteflower.vbs, Unicode 18->53 dropped 55 C:\Users\user\AppData\...\fylgvkxo.cmdline, Unicode 18->55 dropped 81 Potential malicious VBS script found (suspicious strings) 18->81 83 Loading BitLocker PowerShell Module 18->83 25 wscript.exe 2 18->25         started        28 csc.exe 3 18->28         started        file10 signatures11 process12 file13 99 Detected Cobalt Strike Beacon 25->99 101 Suspicious powershell command line found 25->101 103 Wscript starts Powershell (via cmd or directly) 25->103 105 2 other signatures 25->105 31 powershell.exe 15 15 25->31         started        57 C:\Users\user\AppData\Local\...\fylgvkxo.dll, PE32 28->57 dropped 34 cvtres.exe 1 28->34         started        signatures14 process15 dnsIp16 69 67.217.247.193, 49706, 80 SRS-6-Z-7381US United States 31->69 36 CasPol.exe 4 13 31->36         started        40 CasPol.exe 31->40         started        42 conhost.exe 31->42         started        process17 dnsIp18 65 pisses.duckdns.org 23.95.60.124, 14645, 49710, 49712 AS-COLOCROSSINGUS United States 36->65 67 geoplugin.net 178.237.33.50, 49713, 80 ATOM86-ASATOM86NL Netherlands 36->67 85 Detected Remcos RAT 36->85 87 Writes to foreign memory regions 36->87 89 Maps a DLL or memory area into another process 36->89 44 recover.exe 36->44         started        47 recover.exe 36->47         started        49 recover.exe 14 36->49         started        51 recover.exe 36->51         started        91 Contains functionality to bypass UAC (CMSTPLUA) 40->91 93 Contains functionalty to change the wallpaper 40->93 95 Contains functionality to steal Chrome passwords or cookies 40->95 97 3 other signatures 40->97 signatures19 process20 signatures21 111 Tries to steal Instant Messenger accounts or passwords 44->111 113 Tries to steal Mail credentials (via file / registry access) 44->113 115 Tries to harvest and steal browser information (history, passwords, etc) 47->115 117 Tries to steal Mail credentials (via file registry) 51->117
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/641a4f7459e861fe20b55f1e34a990412780a392985236b1ace3c6508ec95fd8
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/641a4f7459e861fe20b55f1e34a990412780a392985236b1ace3c6508ec95fd8/
Threat name:
Script-WScript.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-02-26 08:15:26 UTC
File Type:
Text (HTML)
Extracted files:
1
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mqne65cz5bq74ifvl4pdjkmqietybi4stbjdnmnm4pdfbdwjl7ma._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
1d6a540ec5c26039979eb96d9c53b949694d5e95b7bedd7f941f49336c06534e
RemcosRAT
23234ec826470fce03dd7e028ded7270e0177d56f0e746744cf05ec5dec8ed21
RemcosRAT
338f83f2398cb432b9959231ad7df184757314feb99f0116acbda87d583f849b
RemcosRAT
4414b2abc34b5f274c0941719052e1ae8b5ce354f8dc6e3bea4351f23139435d
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a7e36d0ac37281dfa09250a3b2319b9870ca12072c3b9e156ef3779d63e0936b
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ad4e305243eea4eb48308ce4bccd6b999ed93f9810a82236987187fda9e12de1
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ae7232b1023cd115b8b67ff255be4a9c333f944ce1aaeea7a6dfd6a2e0772366
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db65ec3e55dbc789c0a2edeefe3ff5fb294394abb884b0ccfac5aabb47808c7f
RemcosRAT
error
RemcosRAT
+ 446 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:zynova collection defense_evasion discovery execution rat
Link:
https://tria.ge/reports/250226-kjs4vsskz3/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Blocklisted process makes network request
Evasion via Device Credential Deployment
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
pisses.duckdns.org:14645
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/641a4f7459e861fe20b55f1e34a990412780a392985236b1ace3c6508ec95fd8

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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_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.

Web download

RemcosRAT

HTML Application (hta) hta 641a4f7459e861fe20b55f1e34a990412780a392985236b1ace3c6508ec95fd8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3452848/
  
Delivery method
Distributed via web download

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