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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1feca047f61e4714bfd07ad7f07e4a0f4d323e71ca69c2f2f51bec353aa4932c. 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 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1feca047f61e4714bfd07ad7f07e4a0f4d323e71ca69c2f2f51bec353aa4932c
SHA3-384 hash: 18ab48f09f48eab4dbd56776e5c2fdfdabdcae4b295329e484d5eca8ae0a5325538bf0ad505eb310a6688219efd5b923
SHA1 hash: e448de8bd297efe13729ab9f750ef28c0bcc3736
MD5 hash: bb9f1f9d751c7ef7ab40643d168b7357
humanhash: pip-arkansas-oklahoma-black
File name:RFQ-2627039.js
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'114'162 bytes
First seen:2026-09-10 06:02:34 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:FRT8OiebjymwqLW/M7OSNC/61ZqeIgvjJN:FR4Rk2OWysY5
TLSH T1F83523176EB8486F0234087D646FA10F2CE25ED44089ECE44B8FF95D6ADCF5B817AC5A
Magika javascript
Reporter abuse_ch
Tags:js RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
100
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
base64 obfuscated repaired
Link:
https://www.filescan.io/uploads/6aa2482f13f6f29c7aafcc23/reports/4c29496f-ea0e-43c2-bee2-71175a9830bc/overview
Verdict:
Malicious
Labled as:
Trojan.Cryxos.JS
Link:
https://www.hybrid-analysis.com/sample/1feca047f61e4714bfd07ad7f07e4a0f4d323e71ca69c2f2f51bec353aa4932c
Verdict:
Malicious
File Type:
js
First seen:
2026-09-10T02:30:00Z UTC
Last seen:
2026-09-10T03:00:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/1feca047f61e4714bfd07ad7f07e4a0f4d323e71ca69c2f2f51bec353aa4932c/results?tab=lookup
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1971154
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject threads in other processes
Contains functionality to steal Internet Explorer form passwords
Creates processes via WMI
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
JavaScript source code contains functionality to compute date of execution (likely for evasion)
JavaScript source code contains functionality to generate code involving a shell, file or stream
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Sigma detected: WScript or CScript Dropper - File
Suspicious execution chain found
Tries to detect sandboxes / dynamic malware analysis system (Installed program check)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file registry)
Unusual module load detection (module proxying)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Windows Shell Script Host drops VBS files
Writes to foreign memory regions
Wscript called in batch mode (surpress errors)
WScript reads language and country specific registry keys (likely country aware script)
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell decode and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1971154 Sample: RFQ-2627039.js Startdate: 10/09/2026 Architecture: WINDOWS Score: 100 59 mr-b01.tm-azurefd.net 2->59 61 casoneroutegold-prod-bggfgca0dkaag8a8.b01.azurefd.net 2->61 63 bg.microsoft.map.fastly.net 2->63 83 Found malware configuration 2->83 85 Malicious sample detected (through community Yara rule) 2->85 87 Multi AV Scanner detection for submitted file 2->87 89 10 other signatures 2->89 10 cmd.exe 1 2->10         started        13 wscript.exe 1 2->13         started        15 wscript.exe 1 9 2->15         started        signatures3 process4 file5 91 Wscript starts Powershell (via cmd or directly) 10->91 18 powershell.exe 30 10->18         started        21 conhost.exe 10->21         started        23 cmd.exe 1 10->23         started        93 WScript reads language and country specific registry keys (likely country aware script) 13->93 25 wscript.exe 5 13->25         started        55 C:\Users\user\AppData\...\PhotoStudio.vbs, ASCII 15->55 dropped 57 C:\Users\user\AppData\...\PhotoStudio.js, ASCII 15->57 dropped 95 Windows Shell Script Host drops VBS files 15->95 97 Windows Scripting host queries suspicious COM object (likely to drop second stage) 15->97 99 Suspicious execution chain found 15->99 101 Creates processes via WMI 15->101 signatures6 process7 signatures8 67 Writes to foreign memory regions 18->67 69 Modifies the context of a thread in another process (thread injection) 18->69 71 Injects a PE file into a foreign processes 18->71 27 MSBuild.exe 4 5 18->27         started        73 Installs a global keyboard hook 21->73 32 cmd.exe 1 25->32         started        process9 dnsIp10 65 43.228.157.194, 2404, 49742, 49743 GHOSTYNETWORKSUS Germany 27->65 47 C:\Users\user\AppData\...\Login Data.tmp, SQLite 27->47 dropped 49 C:\Users\user\AppData\...\Login Data.tmp, SQLite 27->49 dropped 51 C:\Users\user\...\Login Data For Account.tmp, SQLite 27->51 dropped 53 C:\ProgramData\remcos\logs.dat, data 27->53 dropped 105 Contains functionality to bypass UAC (CMSTPLUA) 27->105 107 Detected Remcos RAT 27->107 109 Tries to steal Mail credentials (via file registry) 27->109 113 6 other signatures 27->113 111 Wscript starts Powershell (via cmd or directly) 32->111 34 powershell.exe 32->34         started        37 conhost.exe 32->37         started        39 cmd.exe 1 32->39         started        file11 signatures12 process13 file14 75 Writes to foreign memory regions 34->75 77 Modifies the context of a thread in another process (thread injection) 34->77 79 Injects a PE file into a foreign processes 34->79 42 MSBuild.exe 34->42         started        81 Installs a global keyboard hook 37->81 45 stdout, ASCII 39->45 dropped signatures15 process16 signatures17 103 Detected Remcos RAT 42->103
Score:
93%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/1feca047f61e4714bfd07ad7f07e4a0f4d323e71ca69c2f2f51bec353aa4932c
Gathering data
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1feca047f61e4714bfd07ad7f07e4a0f4d323e71ca69c2f2f51bec353aa4932c/
Threat name:
Script-JS.Trojan.Cryxos
Create hunting rule
Status:
Malicious
First seen:
2026-09-10 06:03:28 UTC
File Type:
Text (JavaScript)
AV detection:
7 of 36 (19.44%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=d7wkar7wdzdrjp6qpll7a7skb5gteptrzju4f4xvdpwdkovesmwa._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection execution persistence rat
Link:
https://tria.ge/reports/260910-gr57lsyhpe/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
outlook_office_path
Command and Scripting Interpreter: JavaScript
Command and Scripting Interpreter: PowerShell
Executes a command shell one-liner
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Family: Remcos
Process spawned unexpected child process
Malware Config
C2 Extraction:
43.228.157.194:2404
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/1feca047f61e4714bfd07ad7f07e4a0f4d323e71ca69c2f2f51bec353aa4932c

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
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_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:Windows_Trojan_Remcos_921ef449
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_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