MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c46bd6ca1f8653808b1e9a7401893565645c09dec6c8aa2096a3cf602a54d46e. 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: 10


Intelligence 10 IOCs YARA File information Comments

SHA256 hash: c46bd6ca1f8653808b1e9a7401893565645c09dec6c8aa2096a3cf602a54d46e
SHA3-384 hash: 873bb72e392d4f5488088ece28f373a033557662f4289ac4c07a7389ff86287ea5699d711a0ea7f15a965637edba858a
SHA1 hash: 449f14fe73be64adec96696fb96f92bfafa4be4a
MD5 hash: ffcaf049cfddb24fa55f61bc8121c431
humanhash: wolfram-oklahoma-johnny-hot
File name:Documento CFDI 4.0 01_U_D_5_2_0110741.js
Download: download sample
Signature RemcosRAT
File size:358'272 bytes
First seen:2025-05-21 07:56:44 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 96:K5s/BpZKBpnpsuBpZFBpMpsLBp9BpBprpsNBpZrBpkfspBp9uBprBpsHBpZKjBpV:CCsvAlyIpsv
Threatray 1'032 similar samples on MalwareBazaar
TLSH T12B742BADADE3045624DFF730A69725BC98276754C90266FBE377FA3310A8E5C20F1066
Magika javascript
Reporter abuse_ch
Tags:js RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
462
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Malicious
Score:
97.4%
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated
Result
Threat name:
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
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
Detected Remcos RAT
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Found Tor onion address
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample has a suspicious name (potential lure to open the executable)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Remcos
Sigma detected: Script Initiated Connection to Non-Local Network
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
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
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
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1695707 Sample: Documento CFDI 4.0 01_U_D_5... Startdate: 21/05/2025 Architecture: WINDOWS Score: 100 43 vpnsplashstech.duckdns.org 2->43 45 paste.ee 2->45 47 3 other IPs or domains 2->47 55 Suricata IDS alerts for network traffic 2->55 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 65 17 other signatures 2->65 9 wscript.exe 1 1 2->9         started        signatures3 61 Uses dynamic DNS services 43->61 63 Connects to a pastebin service (likely for C&C) 45->63 process4 dnsIp5 49 paste.ee 23.186.113.60, 443, 49692, 49693 KLAYER-GLOBALNL Reserved 9->49 83 System process connects to network (likely due to code injection or exploit) 9->83 85 JScript performs obfuscated calls to suspicious functions 9->85 87 Suspicious powershell command line found 9->87 89 3 other signatures 9->89 13 powershell.exe 14 15 9->13         started        signatures6 process7 dnsIp8 51 archive.org 207.241.224.2, 443, 49694 INTERNET-ARCHIVEUS United States 13->51 53 dn721509.ca.archive.org 204.62.247.7, 443, 49695 COGENT-174US United States 13->53 91 Found Tor onion address 13->91 93 Writes to foreign memory regions 13->93 95 Suspicious execution chain found 13->95 97 Injects a PE file into a foreign processes 13->97 17 RegAsm.exe 4 16 13->17         started        22 conhost.exe 13->22         started        signatures9 process10 dnsIp11 39 vpnsplashstech.duckdns.org 103.237.86.82, 49699, 49700, 53038 BGNR-AP2BainandCompanySG unknown 17->39 41 geoplugin.net 178.237.33.50, 49702, 80 ATOM86-ASATOM86NL Netherlands 17->41 33 C:\Users\user\AppData\Local\Temp\TH7710.tmp, MS-DOS 17->33 dropped 35 C:\Users\user\AppData\Local\Temp\TH7615.tmp, MS-DOS 17->35 dropped 37 C:\Users\user\AppData\Local\Temp\TH7549.tmp, PE32 17->37 dropped 67 Contains functionality to bypass UAC (CMSTPLUA) 17->67 69 Detected Remcos RAT 17->69 71 Contains functionalty to change the wallpaper 17->71 73 5 other signatures 17->73 24 svchost.exe 2 17->24         started        27 svchost.exe 1 17->27         started        29 svchost.exe 1 17->29         started        31 2 other processes 17->31 file12 signatures13 process14 signatures15 75 Tries to steal Mail credentials (via file registry) 24->75 77 Tries to harvest and steal browser information (history, passwords, etc) 24->77 79 Tries to steal Instant Messenger accounts or passwords 27->79 81 Tries to steal Mail credentials (via file / registry access) 27->81
Threat name:
Script-JS.Backdoor.Remcos
Status:
Malicious
First seen:
2025-05-21 01:04:43 UTC
File Type:
Binary
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution
Behaviour
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Checks computer location settings
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Comments