MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ca4a2396576dce6beb4432d989f83bf0715b43ee9e7c4521921dbf488d613695. 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
| SHA256 hash: | ca4a2396576dce6beb4432d989f83bf0715b43ee9e7c4521921dbf488d613695 |
|---|---|
| SHA3-384 hash: | 69455f0eade3bb03ee48bab705e66a713d2b0d2259e76b0e8069c17f7d7ba5f0da25296f53101fa75f42f314dedac6f9 |
| SHA1 hash: | 5d7d31629e8f46169dd2560b787e558ba833c7cc |
| MD5 hash: | cdfbe77a180b4e799beafae1a7443818 |
| humanhash: | oxygen-zebra-alabama-earth |
| File name: | RFQ_ 0077243001.vbs |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 803'695 bytes |
| First seen: | 2024-01-31 10:56:11 UTC |
| Last seen: | Never |
| File type: |  vbs |
| MIME type: | text/plain |
| ssdeep | 12288:/HE5WP9HxVYYdbHtXWYBFxHLjw8TVak76irayAvvPJzPD5I+x9WXYNXn:/EYP9HQANTBg2v6r//JOhXYNXn |
| Threatray | 18 similar samples on MalwareBazaar |
| TLSH | T1D0050237A683BCE13F3B5D80B0D5355B5F6572BFC365CA08B5841CC900BA6A09F9A9E4 |
| Reporter |  abuse_ch |
| Tags: | RemcosRAT vbs |
Intelligence
File Origin
# of uploads :
1
# of downloads :
107
Origin country :
NLVendor Threat Intelligence
Detection:
n/a
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
dropper obfuscated packed stealer
Verdict:
Malicious
Labled as:
Valyria
Result
Verdict:
MALICIOUS
Details
Base64 Encoded URL
Detected an ANSI or UNICODE http:// or https:// base64 encoded URL prefix.
Result
Threat name:
Remcos
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains process injector
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
Benign windows process drops PE files
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
Delayed program exit found
Drops PE files with benign system names
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Potential malicious VBS script found (has network functionality)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Remcos
Sigma detected: Suspect Svchost Activity
Sigma detected: System File Execution Location Anomaly
Sigma detected: WScript or CScript Dropper
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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)
VBScript performs obfuscated calls to suspicious functions
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Score:
60%
Verdict:
Susipicious
File Type:
ASCII
Threat name:
Script-WScript.Trojan.Valyria
Status:
Malicious
First seen:
2024-01-30 18:18:52 UTC
AV detection:
9 of 24 (37.50%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 8 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:pa kay collection evasion persistence rat spyware stealer
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Maps connected drives based on registry
Checks BIOS information in registry
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
igw.myfirewall.org:2404
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.83
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: | BitcoinAddress |
|---|---|
| Author: | Didier Stevens (@DidierStevens) |
| Description: | Contains a valid Bitcoin address |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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