MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e8a3bec62a9c1c7f519512ba053eafc905ba179eae7236bd32917a542f23a9af. 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: 9


Intelligence 9 IOCs YARA File information Comments
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SHA256 hash: e8a3bec62a9c1c7f519512ba053eafc905ba179eae7236bd32917a542f23a9af
SHA3-384 hash: a15cf9958a4ac7c43bc9fe72724b76bdf60a13b894666c441f42ddc6d16bcf36605d70b5b993f71ede30d4bc53e5e26b
SHA1 hash: 7e80698a5e0e10841124c736f4dde7e08c3bf828
MD5 hash: 125b99e7b43161515c29680951358cff
humanhash: undress-delaware-idaho-may
File name:brzbestventurewithgoodnewsforhim.hta
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:46'535 bytes
First seen:2025-05-27 05:41:04 UTC
Last seen:Never
File type:HTML Application (hta) hta
MIME type:text/html
ssdeep 384:Q+TlFq/KGYrlTFrqsm0fdb0fdofgOszJ6:AqT7Pfw6
TLSH T1862328C1CB3F217C2EE06AC19E495B95C4BDE873AA5F1159E60C2BD946E0C1532ADB0F
Magika txt
Reporter abuse_ch
Tags:hta RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
84
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.JS.Starter.96.13345.332.UNOFFICIAL
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Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68355796668438e362e75584
Tags:
obfuscate shell lien sage
Result
Verdict:
Malicious
File Type:
HTA File - Malicious
Link:
https://app.docguard.net/e8a3bec62a9c1c7f519512ba053eafc905ba179eae7236bd32917a542f23a9af/results/dashboard
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/e8a3bec62a9c1c7f519512ba053eafc905ba179eae7236bd32917a542f23a9af
Result
Threat name:
Cobalt Strike, Remcos
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Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1699564
Signature
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
Delayed program exit found
Detected Cobalt Strike Beacon
Detected Remcos RAT
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)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
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
Uses threadpools to delay analysis
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 AntiVM3
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: 1699564 Sample: brzbestventurewithgoodnewsf... Startdate: 27/05/2025 Architecture: WINDOWS Score: 100 58 sweetindianfestivalsessioncutegirlformel.duckdns.org 2->58 60 geoplugin.net 2->60 82 Suricata IDS alerts for network traffic 2->82 84 Found malware configuration 2->84 86 Malicious sample detected (through community Yara rule) 2->86 90 16 other signatures 2->90 12 mshta.exe 1 2->12         started        15 svchost.exe 1 1 2->15         started        signatures3 88 Uses dynamic DNS services 58->88 process4 dnsIp5 102 Suspicious command line found 12->102 104 PowerShell case anomaly found 12->104 106 Uses threadpools to delay analysis 12->106 18 cmd.exe 1 12->18         started        68 127.0.0.1 unknown unknown 15->68 signatures6 process7 signatures8 70 Detected Cobalt Strike Beacon 18->70 72 Suspicious powershell command line found 18->72 74 Wscript starts Powershell (via cmd or directly) 18->74 76 PowerShell case anomaly found 18->76 21 powershell.exe 3 45 18->21         started        26 conhost.exe 18->26         started        process9 dnsIp10 62 107.175.246.45, 49713, 49716, 80 AS-COLOCROSSINGUS United States 21->62 52 C:\...\bestventurewithgoodnewsforhim.vbe, Unicode 21->52 dropped 54 C:\Users\user\AppData\...\r3lfzpvd.cmdline, Unicode 21->54 dropped 92 Loading BitLocker PowerShell Module 21->92 28 wscript.exe 1 21->28         started        31 csc.exe 3 21->31         started        file11 signatures12 process13 file14 108 Detected Cobalt Strike Beacon 28->108 110 Suspicious powershell command line found 28->110 112 Wscript starts Powershell (via cmd or directly) 28->112 114 2 other signatures 28->114 34 powershell.exe 15 15 28->34         started        56 C:\Users\user\AppData\Local\...\r3lfzpvd.dll, PE32 31->56 dropped 37 cvtres.exe 1 31->37         started        signatures15 process16 signatures17 78 Writes to foreign memory regions 34->78 80 Injects a PE file into a foreign processes 34->80 39 CasPol.exe 4 13 34->39         started        43 conhost.exe 34->43         started        process18 dnsIp19 64 sweetindianfestivalsessioncutegirlformel.duckdns.org 198.55.102.43, 14646, 49723, 49724 ASN-QUADRANET-GLOBALUS United States 39->64 66 geoplugin.net 178.237.33.50, 49725, 80 ATOM86-ASATOM86NL Netherlands 39->66 94 Contains functionality to bypass UAC (CMSTPLUA) 39->94 96 Detected Remcos RAT 39->96 98 Tries to steal Mail credentials (via file registry) 39->98 100 7 other signatures 39->100 45 CasPol.exe 39->45         started        48 CasPol.exe 39->48         started        50 CasPol.exe 39->50         started        signatures20 process21 signatures22 116 Tries to steal Instant Messenger accounts or passwords 45->116 118 Tries to steal Mail credentials (via file / registry access) 45->118 120 Tries to harvest and steal browser information (history, passwords, etc) 48->120
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/e8a3bec62a9c1c7f519512ba053eafc905ba179eae7236bd32917a542f23a9af
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e8a3bec62a9c1c7f519512ba053eafc905ba179eae7236bd32917a542f23a9af/
Threat name:
Script-JS.Downloader.Nemucod
Create hunting rule
Status:
Malicious
First seen:
2025-05-26 15:39:23 UTC
File Type:
Text (HTML)
Extracted files:
1
AV detection:
9 of 24 (37.50%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5cr35rrktqoh6umvck5akpvpzec3uf46vzzdnpjssf5filzdvgxq._file
Result
Malware family:
remcos
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Score:
  10/10
Tags:
family:remcos botnet:eva collection defense_evasion discovery execution rat
Link:
https://tria.ge/reports/250527-gv2nlaam3t/
Behaviour
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
Checks computer location settings
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Evasion via Device Credential Deployment
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
sweetindianfestivalsessioncutegirlformel.duckdns.org:14646
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e8a3bec62a9c/report/overview.html
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/e8a3bec62a9c1c7f519512ba053eafc905ba179eae7236bd32917a542f23a9af

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 e8a3bec62a9c1c7f519512ba053eafc905ba179eae7236bd32917a542f23a9af

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3553407/
  
Delivery method
Distributed via web download

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