MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3a055e49fdda5ce402a724b6fbfc34fdf0fbc2111a6a5072a2bb27fe5211f0e. 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: 14


Intelligence 14 IOCs YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3a055e49fdda5ce402a724b6fbfc34fdf0fbc2111a6a5072a2bb27fe5211f0e
SHA3-384 hash: e675c65a6ba12848c7ca921e124c192436893f4021698ff155cde61a67de43ec9be5b24f975226fa1a02a58c4ea6f1da
SHA1 hash: 7eb5101ab2efa3a169be68f75bcd84379ec37d91
MD5 hash: 9b2fa2f72782061037181cfbf05e9df1
humanhash: minnesota-avocado-hamper-bluebird
File name:nicepersonforsweetkissinggirlformygirl.hta
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:17'366 bytes
First seen:2025-03-01 14:27:30 UTC
Last seen:Never
File type:HTML Application (hta) hta
MIME type:text/html
ssdeep 48:3TQG4ZcQsG4ZQy4bdCDPTnoL8R+Ak95jANoVgdBhyJQVO6QDtf/Od4ZgfQ/PG:KXUPT5R+Ak95jCs2lCF+
Threatray 504 similar samples on MalwareBazaar
TLSH T1A372640E2E10EEBF7386113838DC0CC1B9AC17FD98592441B96CD45287F199E8AF89E6
Magika html
Reporter abuse_ch
Tags:hta RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
88
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.PowerShell.Obfus-1.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c31a802dfba428b46f8f78
Tags:
obfuscate shell sage
Result
Verdict:
Malicious
File Type:
HTA File - Malicious
Link:
https://app.docguard.net/b3a055e49fdda5ce402a724b6fbfc34fdf0fbc2111a6a5072a2bb27fe5211f0e/results/dashboard
Payload URLs
URL
File name
http://23.95.60.80/677/nicepersonforsweetkissinggirlformygirl.gIF
HTA File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
powershell
Link:
https://www.filescan.io/uploads/67c3197ee95d0f9029e20f64/reports/727728b8-5f57-4c86-8f43-a7c14143f6ae/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/b3a055e49fdda5ce402a724b6fbfc34fdf0fbc2111a6a5072a2bb27fe5211f0e
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.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1627166
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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)
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
Uses dynamic DNS services
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
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1627166 Sample: nicepersonforsweetkissinggi... Startdate: 01/03/2025 Architecture: WINDOWS Score: 100 49 interestedthingsforkissinggirlwithloves.duckdns.org 2->49 51 geoplugin.net 2->51 59 Suricata IDS alerts for network traffic 2->59 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 67 15 other signatures 2->67 11 mshta.exe 1 2->11         started        signatures3 65 Uses dynamic DNS services 49->65 process4 signatures5 89 Suspicious command line found 11->89 91 PowerShell case anomaly found 11->91 14 cmd.exe 1 11->14         started        process6 signatures7 93 Detected Cobalt Strike Beacon 14->93 95 Suspicious powershell command line found 14->95 97 Wscript starts Powershell (via cmd or directly) 14->97 99 PowerShell case anomaly found 14->99 17 powershell.exe 3 44 14->17         started        22 conhost.exe 14->22         started        process8 dnsIp9 47 23.95.60.80, 49706, 49708, 80 AS-COLOCROSSINGUS United States 17->47 41 nicepersonforsweet...inggirlformygir.vbs, Unicode 17->41 dropped 43 C:\Users\user\AppData\...\11kdzosd.cmdline, Unicode 17->43 dropped 69 Potential malicious VBS script found (suspicious strings) 17->69 71 Loading BitLocker PowerShell Module 17->71 24 wscript.exe 1 17->24         started        27 csc.exe 3 17->27         started        file10 signatures11 process12 file13 81 Detected Cobalt Strike Beacon 24->81 83 Suspicious powershell command line found 24->83 85 Wscript starts Powershell (via cmd or directly) 24->85 87 2 other signatures 24->87 30 powershell.exe 15 15 24->30         started        45 C:\Users\user\AppData\Local\...\11kdzosd.dll, PE32 27->45 dropped 33 cvtres.exe 1 27->33         started        signatures14 process15 dnsIp16 57 67.217.247.193, 49707, 80 SRS-6-Z-7381US United States 30->57 35 CasPol.exe 4 13 30->35         started        39 conhost.exe 30->39         started        process17 dnsIp18 53 interestedthingsforkissinggirlwithloves.duckdns.org 192.3.232.40, 14645, 49710 AS-COLOCROSSINGUS United States 35->53 55 geoplugin.net 178.237.33.50, 49722, 80 ATOM86-ASATOM86NL Netherlands 35->55 73 Contains functionality to bypass UAC (CMSTPLUA) 35->73 75 Detected Remcos RAT 35->75 77 Contains functionalty to change the wallpaper 35->77 79 3 other signatures 35->79 signatures19
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/b3a055e49fdda5ce402a724b6fbfc34fdf0fbc2111a6a5072a2bb27fe5211f0e
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b3a055e49fdda5ce402a724b6fbfc34fdf0fbc2111a6a5072a2bb27fe5211f0e/
Threat name:
Script-WScript.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2025-03-01 13:56:30 UTC
File Type:
Text (HTML)
Extracted files:
1
AV detection:
11 of 38 (28.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=woqflze73ws44qbkojfw7p6dj7pq7pbbcgtkkbzkfozh7zjbd4ha._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0f9dd9740b6c6ce0ef8b4d756abb7494d35da16af767dc58eae91af43313cb3a
RemcosRAT
23234ec826470fce03dd7e028ded7270e0177d56f0e746744cf05ec5dec8ed21
RemcosRAT
338f83f2398cb432b9959231ad7df184757314feb99f0116acbda87d583f849b
RemcosRAT
3c7654a38b7e605dd7619b4eafd645c2203c2fa10e60508113eaf23a87f92fa8
RemcosRAT
596f5b4125f206848085c5f6a08e0835da6ec8a5d37aa33f738576b6ff1b964b
RemcosRAT
6ea18978fb71fe6885f82e191911f7057ea8a5c6470a6ca93f2c12832a5c451c
RemcosRAT
a7e36d0ac37281dfa09250a3b2319b9870ca12072c3b9e156ef3779d63e0936b
RemcosRAT
b3a055e49fdda5ce402a724b6fbfc34fdf0fbc2111a6a5072a2bb27fe5211f0e
RemcosRAT
e0ddedaa06761076b5647d0a26e2193602cd1136b71c130a0c06542f39464183
RemcosRAT
error
RemcosRAT
+ 494 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:zyno007 defense_evasion discovery execution rat
Link:
https://tria.ge/reports/250301-rs5btas1bx/
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
Suspicious use of SetThreadContext
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Blocklisted process makes network request
Evasion via Device Credential Deployment
Remcos
Remcos family
Malware Config
C2 Extraction:
interestedthingsforkissinggirlwithloves.duckdns.org:14645
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b3a055e49fdd/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/b3a055e49fdda5ce402a724b6fbfc34fdf0fbc2111a6a5072a2bb27fe5211f0e

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 b3a055e49fdda5ce402a724b6fbfc34fdf0fbc2111a6a5072a2bb27fe5211f0e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3462289/
  
Delivery method
Distributed via web download

Comments