MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2f742cbc639ee7878cc901c2a1ac27ba7039c6db26f3d15ee16ba01496757688. 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: 2f742cbc639ee7878cc901c2a1ac27ba7039c6db26f3d15ee16ba01496757688
SHA3-384 hash: f019250bdcb192b10eb815a8fc3762b265e6a14d4d1b90c5c8abcf2b8d0a6d5339fa9be225d0376d19a111af1524919a
SHA1 hash: a6a8a25f475e3c7c9bfe7080cf167b818625e524
MD5 hash: 33eefe04890a338f5effd9c69745a48b
humanhash: green-black-autumn-cat
File name:verysurethingsonherewithgreatthings.hta
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:15'028 bytes
First seen:2025-03-13 07:42:01 UTC
Last seen:Never
File type:HTML Application (hta) hta
MIME type:text/html
ssdeep 96:brJ0Arw02ssO5mHfO5i2v/86Br5rJ0Zr++:bV0Ac02ssOsH0BF90ZV
TLSH T1146233591C36CDF943DA802D24EC62D55A8C83BFA0953B2BB19D8503A3E4A5C94EA3C7
Magika html
Reporter abuse_ch
Tags:hta RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
87
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d293ec08116ce42570b628
Tags:
obfuscate remcos shell sage
Result
Verdict:
Malicious
File Type:
HTA File - Malicious
Link:
https://app.docguard.net/2f742cbc639ee7878cc901c2a1ac27ba7039c6db26f3d15ee16ba01496757688/results/dashboard
Payload URLs
URL
File name
http://172.245.191.88/880/verysurethingsonherewithgreatthings.png
HTA File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
powershell
Link:
https://www.filescan.io/uploads/67d28c543c5f644bd9512373/reports/cf4c8ef6-970a-4462-a848-4b0adc425c92/overview
Verdict:
Malicious
Labled as:
VBS.Asthma.2.49C7FB81
Link:
https://www.hybrid-analysis.com/sample/2f742cbc639ee7878cc901c2a1ac27ba7039c6db26f3d15ee16ba01496757688
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/1636889
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
Found malware configuration
Injects a PE file into a foreign processes
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
Suricata IDS alerts for network traffic
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)
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1636889 Sample: verysurethingsonherewithgre... Startdate: 13/03/2025 Architecture: WINDOWS Score: 100 50 qwertyuioplkjhgfdsazxcvbnm.ydns.eu 2->50 52 geoplugin.net 2->52 60 Suricata IDS alerts for network traffic 2->60 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 14 other signatures 2->66 11 mshta.exe 1 2->11         started        signatures3 process4 signatures5 88 Suspicious command line found 11->88 90 PowerShell case anomaly found 11->90 14 cmd.exe 1 11->14         started        process6 signatures7 92 Detected Cobalt Strike Beacon 14->92 94 Suspicious powershell command line found 14->94 96 Wscript starts Powershell (via cmd or directly) 14->96 98 PowerShell case anomaly found 14->98 17 powershell.exe 3 44 14->17         started        22 conhost.exe 14->22         started        process8 dnsIp9 48 172.245.191.88, 49710, 49712, 80 AS-COLOCROSSINGUS United States 17->48 42 C:\...\verysurethingsonherewithgreatthing.vbs, Unicode 17->42 dropped 44 C:\Users\user\AppData\...\2lsn1vxp.cmdline, Unicode 17->44 dropped 68 Potential malicious VBS script found (suspicious strings) 17->68 70 Loading BitLocker PowerShell Module 17->70 24 wscript.exe 1 17->24         started        27 csc.exe 3 17->27         started        file10 signatures11 process12 file13 80 Detected Cobalt Strike Beacon 24->80 82 Suspicious powershell command line found 24->82 84 Wscript starts Powershell (via cmd or directly) 24->84 86 2 other signatures 24->86 30 powershell.exe 15 15 24->30         started        46 C:\Users\user\AppData\Local\...\2lsn1vxp.dll, PE32 27->46 dropped 34 cvtres.exe 1 27->34         started        signatures14 process15 dnsIp16 58 104.168.7.38, 49711, 80 AS-COLOCROSSINGUS United States 30->58 100 Writes to foreign memory regions 30->100 102 Injects a PE file into a foreign processes 30->102 36 CasPol.exe 4 14 30->36         started        40 conhost.exe 30->40         started        signatures17 process18 dnsIp19 54 qwertyuioplkjhgfdsazxcvbnm.ydns.eu 185.208.156.45, 20908, 49713, 49720 SIMPLECARRIERCH Switzerland 36->54 56 geoplugin.net 178.237.33.50, 49714, 49721, 80 ATOM86-ASATOM86NL Netherlands 36->56 72 Contains functionality to bypass UAC (CMSTPLUA) 36->72 74 Contains functionalty to change the wallpaper 36->74 76 Contains functionality to steal Chrome passwords or cookies 36->76 78 2 other signatures 36->78 signatures20
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/2f742cbc639ee7878cc901c2a1ac27ba7039c6db26f3d15ee16ba01496757688
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2f742cbc639ee7878cc901c2a1ac27ba7039c6db26f3d15ee16ba01496757688/
Threat name:
Script-WScript.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-03-12 13:18:12 UTC
File Type:
Text (HTML)
Extracted files:
1
AV detection:
12 of 38 (31.58%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=f52czpddt3typdgjahbkdlbhxjydtrw3e3z5cxxbnoqbjftvo2ea._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:yak defense_evasion discovery execution rat
Link:
https://tria.ge/reports/250313-jjqhaszthv/
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:
qwertyuioplkjhgfdsazxcvbnm.ydns.eu:20908
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2f742cbc639e/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/2f742cbc639ee7878cc901c2a1ac27ba7039c6db26f3d15ee16ba01496757688

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 2f742cbc639ee7878cc901c2a1ac27ba7039c6db26f3d15ee16ba01496757688

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3475715/
  
Delivery method
Distributed via web download

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