MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 53bcd29a7e6afd5ff7e507a36fc47c7696106c54259bd8c10c76ac6716fda0ae. 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: 12


Intelligence 12 IOCs YARA 22 File information Comments
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SHA256 hash: 53bcd29a7e6afd5ff7e507a36fc47c7696106c54259bd8c10c76ac6716fda0ae
SHA3-384 hash: 728a13a2508830891de3b9d67c69cd5a1b9e78af8d291ee9b8641954ce3947c1455dc87f08dd09a16b0ae88c2ce7481b
SHA1 hash: b8e7608a478d0b50547e758f4a6567823fa3f311
MD5 hash: f497655b5c7c0834be1fe0ea0eb7493c
humanhash: bakerloo-blossom-bluebird-glucose
File name:6732832.js
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'619'064 bytes
First seen:2025-03-15 08:12:52 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 49152:PEo4ogzB/y7CkkPYFnozJ95atNzakAQ8b/s1R0d:0
Threatray 594 similar samples on MalwareBazaar
TLSH T11DC5E13C4706AD6627BC16F4C81C29805EBC15779784ABE8AE7E40FF267D702876D4AC
Magika javascript
Reporter abuse_ch
Tags:js RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
352
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d3e5c708116ce42571141d
Tags:
delphi emotet cobalt
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
dropper exploit fingerprint keylogger obfuscated obfuscated packed remcos stealer
Link:
https://www.filescan.io/uploads/67d536b80a7899f357971e2c/reports/d118e390-ece9-4f24-87f8-47b1d483038a/overview
Verdict:
Malicious
Labled as:
GT:JS.Cbum.1.25F49B73;Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/53bcd29a7e6afd5ff7e507a36fc47c7696106c54259bd8c10c76ac6716fda0ae
Result
Verdict:
MALICIOUS
Details
Base64 Encoded URL
Detected an ANSI or UNICODE http:// or https:// base64 encoded URL prefix.
Result
Threat name:
Remcos, DBatLoader
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1639312
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Drops PE files with a suspicious file extension
Early bird code injection technique detected
Found malware configuration
Installs a global keyboard hook
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: DLL Search Order Hijackig Via Additional Space in Path
Sigma detected: Remcos
Sigma detected: Suspicious Creation with Colorcpl
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected DBatLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1639312 Sample: 6732832.js Startdate: 15/03/2025 Architecture: WINDOWS Score: 100 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 61 10 other signatures 2->61 8 wscript.exe 1 2 2->8         started        12 Ekbmajrx.PIF 2->12         started        14 Ekbmajrx.PIF 2->14         started        process3 file4 39 C:\Users\user\AppData\Local\Temp\x.exe, PE32 8->39 dropped 63 Benign windows process drops PE files 8->63 65 JScript performs obfuscated calls to suspicious functions 8->65 67 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->67 16 x.exe 1 7 8->16         started        69 Antivirus detection for dropped file 12->69 71 Multi AV Scanner detection for dropped file 12->71 73 Early bird code injection technique detected 12->73 20 colorcpl.exe 12->20         started        75 Allocates memory in foreign processes 14->75 22 colorcpl.exe 14->22         started        signatures5 process6 file7 37 C:\Users\user\Linkskbmajrx.PIF, PE32 16->37 dropped 45 Antivirus detection for dropped file 16->45 47 Multi AV Scanner detection for dropped file 16->47 49 Early bird code injection technique detected 16->49 53 4 other signatures 16->53 24 colorcpl.exe 4 3 16->24         started        29 cmd.exe 1 16->29         started        31 cmd.exe 1 16->31         started        51 Detected Remcos RAT 20->51 signatures8 process9 dnsIp10 43 196.251.83.79, 49693, 49696, 49697 SONIC-WirelessZA Seychelles 24->43 41 C:\ProgramData\remcos\logs.dat, data 24->41 dropped 77 Contains functionality to bypass UAC (CMSTPLUA) 24->77 79 Detected Remcos RAT 24->79 81 Contains functionalty to change the wallpaper 24->81 83 4 other signatures 24->83 33 conhost.exe 29->33         started        35 conhost.exe 31->35         started        file11 signatures12 process13
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/53bcd29a7e6afd5ff7e507a36fc47c7696106c54259bd8c10c76ac6716fda0ae
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/53bcd29a7e6afd5ff7e507a36fc47c7696106c54259bd8c10c76ac6716fda0ae/
Threat name:
Script-JS.Trojan.ModiLoader
Create hunting rule
Status:
Malicious
First seen:
2025-03-13 13:22:16 UTC
File Type:
Text (AutoIt)
AV detection:
15 of 36 (41.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ko6nfgt6nl6v757fa6rw7rd4o2lba3cuewn5rqimo2wgofx5ucxa._file
Verdict:
malicious
Label(s):
dbatloader
Create hunting rule
remcos
Create hunting rule
Similar samples:
45a2f3ef4e482129bcb6d5fce3e4dafd084a48491bf86039378220cbaaaf895d
RemcosRAT
4816f58220b5e07a83eb4a918fe200eb7317472efee4f9f1b27ab3de2a01ff9e
RemcosRAT
7f7860172d4e076099724e55875a797b9206365a4e6f52cf93f57371fd7fcc82
RemcosRAT
b2ad15205bc0385eacc9412fbc35639de0d5ecce1b045770cbcc584b41371c0d
RemcosRAT
c0e3043b13b21ab347c7ccd016f92f763a31da997bdf6a617300ebb6c1f32749
RemcosRAT
ca763bc6524433635d6e783c01d6eaac6e7afcefab82124d0fd98715e1d982cc
RemcosRAT
error
RemcosRAT
+ 584 additional samples on MalwareBazaar
Result
Malware family:
modiloader
Create hunting rule
Score:
  10/10
Tags:
family:modiloader discovery execution persistence trojan
Link:
https://tria.ge/reports/250315-j4g2naskv3/
Behaviour
Runs ping.exe
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
ModiLoader Second Stage
ModiLoader, DBatLoader
Modiloader family
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/53bcd29a7e6afd5ff7e507a36fc47c7696106c54259bd8c10c76ac6716fda0ae

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:Borland
Create hunting rule
Author:malware-lu
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:DebuggerCheck__RemoteAPI
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: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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Typical_Malware_String_Transforms
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Windows_Generic_Threat_d7b57912
Create hunting rule
Author:Elastic Security
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.

Comments