MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 449cfb586898cdc0e432940983eca397fe1fb06d83bc87d51a8ee6a3f5eaa062. 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: 449cfb586898cdc0e432940983eca397fe1fb06d83bc87d51a8ee6a3f5eaa062
SHA3-384 hash: daabed50474f120a0ed458f9f3de5ccddaeab47c40dd345a2f6b3dc7bfc5c37f2da922dd493bb303c6a82c36cb8b038f
SHA1 hash: 367976849a712368f696363522560b8cb12c50f3
MD5 hash: 340fe82604343fbd2eacab0413ea39aa
humanhash: massachusetts-bacon-fruit-aspen
File name:segura.vbs
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:29'691'402 bytes
First seen:2024-11-04 06:07:01 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 96:Zjjjjjjjjjjjjjjjjjvjjjjjjjjjjjjjjjjjwjjjjjjjjjjjjjjjjjvjjjjjjjj+:kJvvK6/OkFpbN0RwdU+08eCntFwtcPcb
Threatray 4'568 similar samples on MalwareBazaar
TLSH T1DE572F3F871E702F2490661863496A62E2AF7285EB762EC601439FCDDC5C6736D1CF89
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika mp3
Reporter lontze7
Tags:remcos RemcosRAT vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
115
Origin country :
FR FR
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6728648d49e92a05dde2c44e
Tags:
powershell gumen
Verdict:
Malicious
Labled as:
GT:VB.Honolulu.1
Link:
https://www.hybrid-analysis.com/sample/449cfb586898cdc0e432940983eca397fe1fb06d83bc87d51a8ee6a3f5eaa062
Result
Verdict:
MALICIOUS
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1548202
Signature
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Connects to a pastebin service (likely for C&C)
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
Delayed program exit found
Detected Remcos RAT
Encrypted powershell cmdline option found
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
Potential dropper URLs found in powershell memory
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded Invoke Keyword
Sigma detected: Remcos
Sigma detected: Silenttrinity Stager Msbuild Activity
Sigma detected: Suspicious Encoded PowerShell Command Line
Sigma detected: Suspicious Invoke-WebRequest Execution
Sigma detected: Suspicious PowerShell Encoded Command Patterns
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Uses dynamic DNS services
Uses ping.exe to check the status of other devices and networks
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 Generic Downloader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1548202 Sample: segura.vbs Startdate: 04/11/2024 Architecture: WINDOWS Score: 100 34 pastebin.com 2->34 36 paste.ee 2->36 38 11 other IPs or domains 2->38 64 Suricata IDS alerts for network traffic 2->64 66 Found malware configuration 2->66 68 Malicious sample detected (through community Yara rule) 2->68 72 18 other signatures 2->72 9 wscript.exe 1 2->9         started        signatures3 70 Connects to a pastebin service (likely for C&C) 36->70 process4 signatures5 84 Suspicious powershell command line found 9->84 86 Wscript starts Powershell (via cmd or directly) 9->86 88 Windows Scripting host queries suspicious COM object (likely to drop second stage) 9->88 90 Suspicious execution chain found 9->90 12 powershell.exe 7 9->12         started        process6 signatures7 92 Suspicious powershell command line found 12->92 94 Encrypted powershell cmdline option found 12->94 96 Uses ping.exe to check the status of other devices and networks 12->96 98 Found suspicious powershell code related to unpacking or dynamic code loading 12->98 15 powershell.exe 14 17 12->15         started        19 conhost.exe 12->19         started        process8 dnsIp9 50 pastebin.com 104.20.3.235, 443, 49704, 49708 CLOUDFLARENETUS United States 15->50 52 paste.ee 188.114.96.3, 443, 49716 CLOUDFLARENETUS European Union 15->52 54 3.5.25.124, 443, 49714 AMAZON-AESUS United States 15->54 56 Encrypted powershell cmdline option found 15->56 58 Writes to foreign memory regions 15->58 60 Potential dropper URLs found in powershell memory 15->60 62 Injects a PE file into a foreign processes 15->62 21 MSBuild.exe 3 15 15->21         started        26 powershell.exe 15 15->26         started        28 PING.EXE 1 15->28         started        30 cmd.exe 1 15->30         started        signatures10 process11 dnsIp12 40 21oct.duckdns.org 152.201.184.235, 2404, 49899 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 21->40 42 geoplugin.net 178.237.33.50, 49905, 80 ATOM86-ASATOM86NL Netherlands 21->42 32 C:\ProgramData\remcos\logs.dat, data 21->32 dropped 74 Contains functionality to bypass UAC (CMSTPLUA) 21->74 76 Detected Remcos RAT 21->76 78 Contains functionalty to change the wallpaper 21->78 82 5 other signatures 21->82 44 bitbucket.org 185.166.143.48, 443, 49705, 49710 AMAZON-02US Germany 26->44 46 s3-w.us-east-1.amazonaws.com 3.5.3.161, 443, 49706 AMAZON-AESUS United States 26->46 80 Potential dropper URLs found in powershell memory 26->80 48 127.0.0.1 unknown unknown 28->48 file13 signatures14
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/449cfb586898cdc0e432940983eca397fe1fb06d83bc87d51a8ee6a3f5eaa062
Gathering data
Threat name:
Win32.Trojan.Honolulu
Create hunting rule
Status:
Malicious
First seen:
2024-11-04 06:08:08 UTC
File Type:
Text (VBS)
AV detection:
7 of 38 (18.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=isopwwditdg4bzbssqeyh3fds77b7mdnqo6ipvi2r3tkh5pkubra._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff
RemcosRAT
99a11f085f087ed16112cda26f1eb660801e83502fe0d7cf7d6f2e0b163855b6
RemcosRAT
b8f10c23448f6d30808e7e74322ebd4121cf2c589c86cc3b0b57df6c705a867e
RemcosRAT
babc0e3f52501b3128c5b0d806696a82c6575d7194a721d0e354d9bc7b077d91
RemcosRAT
c3a3e14fe23932fae3b25d5845274b981ca64a465ec56fe2f042dbfe05568d16
RemcosRAT
caf42d7fbf9c9e246bf7266cd08a763f39ee1eaf06c7f6ce0758be2511458b5a
RemcosRAT
error
RemcosRAT
+ 4'558 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:tar2 defense_evasion discovery execution rat
Link:
https://tria.ge/reports/241104-gvcpgavhra/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Obfuscated Files or Information: Command Obfuscation
Checks computer location settings
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Remcos
Remcos family
Malware Config
C2 Extraction:
21oct.duckdns.org:2404
Dropper Extraction:
https://pastebin.com/raw/J6uRjZrv
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/449cfb586898cdc0e432940983eca397fe1fb06d83bc87d51a8ee6a3f5eaa062

File information

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

Web download

RemcosRAT

Visual Basic Script (vbs) vbs 449cfb586898cdc0e432940983eca397fe1fb06d83bc87d51a8ee6a3f5eaa062

(this sample)

  
Delivery method
Distributed via web download

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