MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 670b67c5cbba724c8ed85893bb866f7c4dd3fab133266f4f2c1aa7a3575622bc. 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: 14


Intelligence 14 IOCs YARA 25 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 670b67c5cbba724c8ed85893bb866f7c4dd3fab133266f4f2c1aa7a3575622bc
SHA3-384 hash: 0e2b657b5cd59f5f9371516ae139e5888e567d0baa1ab557b18ef723ec6ae42866d9daa46a19fae092145c6cbc4e6bad
SHA1 hash: 0d86aa56724b2d882a67020991340d34ebc1e692
MD5 hash: 8320ec51992979707d82fdba1eb4f806
humanhash: maine-princess-timing-pasta
File name:8320ec51992979707d82fdba1eb4f806.js
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:3'017'264 bytes
First seen:2026-02-28 10:22:43 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:0fKRDEMHeS8BARjWYHW+WBmJMoROmi7+3wKo:tE8bRSyWUJMoROmFwf
TLSH T105D5BF47ED701B9E4EC64E07B06B84FF30510AF562CBB937B6B5962141E4295FA3A3E0
Magika javascript
Reporter abuse_ch
Tags:js RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
123
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69a2c21c8fffa866e3b339dc
Tags:
autorun dropper keylog blic
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated repaired
Link:
https://www.filescan.io/uploads/69a2c21710e80629d4f67590/reports/cf994caf-dc9d-4f85-a286-be2a3c274c25/overview
Verdict:
Suspicious
Labled as:
JS/Agent.DQV
Link:
https://www.hybrid-analysis.com/sample/670b67c5cbba724c8ed85893bb866f7c4dd3fab133266f4f2c1aa7a3575622bc
Verdict:
Malicious
File Type:
js
Detections:
Backdoor.Win32.Androm.sb Trojan.JS.SAgent.sb HEUR:Trojan.Script.SAgent.gen Exploit.Win32.BypassUAC.sb Backdoor.Win32.Remcos.e Trojan-Spy.Win32.Xegumumune.sbc Trojan.Win32.Inject.sb Trojan.PowerShell.Cobalt.sb Trojan.Win32.InjectorNetT.s Backdoor.Remcos.HTTP.C&C PDM:Trojan.Win32.Generic Trojan.Win32.Agent.sb Backdoor.Win32.Remcos.f Trojan-Dropper.Win32.Injector.sb Backdoor.Win32.Remcos.sb
Link:
https://opentip.kaspersky.com/670b67c5cbba724c8ed85893bb866f7c4dd3fab133266f4f2c1aa7a3575622bc/results?tab=lookup
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
evad.troj.spyw.expl
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1876330
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Bypasses PowerShell execution policy
Creates autostart registry keys with suspicious values (likely registry only malware)
Detected Remcos RAT
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Unusual module load detection (module proxying)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Windows shortcut file (LNK) contains suspicious command line arguments
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell decode and execute
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1876330 Sample: IgPpmwuuHR.js Startdate: 28/02/2026 Architecture: WINDOWS Score: 100 38 mrekuro.hopto.org 2->38 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 Yara detected Powershell decode and execute 2->52 54 8 other signatures 2->54 8 wscript.exe 2 4 2->8         started        12 powershell.exe 19 2->12         started        14 powershell.exe 17 2->14         started        16 powershell.exe 2->16         started        signatures3 process4 file5 34 C:\Temp\ps_7mBqqF9ugOdE_1772277306757.ps1, ASCII 8->34 dropped 56 Suspicious powershell command line found 8->56 58 Wscript starts Powershell (via cmd or directly) 8->58 60 Creates autostart registry keys with suspicious values (likely registry only malware) 8->60 62 3 other signatures 8->62 18 powershell.exe 16 8->18         started        21 conhost.exe 12->21         started        23 conhost.exe 1 14->23         started        25 conhost.exe 16->25         started        signatures6 process7 signatures8 42 Writes to foreign memory regions 18->42 44 Found suspicious powershell code related to unpacking or dynamic code loading 18->44 46 Injects a PE file into a foreign processes 18->46 27 aspnet_compiler.exe 2 3 18->27         started        32 conhost.exe 18->32         started        process9 dnsIp10 40 mrekuro.hopto.org 172.94.125.41, 5675 M247GB United States 27->40 36 C:\ProgramData\remcos\logs.dat, data 27->36 dropped 64 Detected Remcos RAT 27->64 66 Installs a global keyboard hook 27->66 68 Unusual module load detection (module proxying) 27->68 file11 signatures12
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/670b67c5cbba724c8ed85893bb866f7c4dd3fab133266f4f2c1aa7a3575622bc
Gathering data
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/670b67c5cbba724c8ed85893bb866f7c4dd3fab133266f4f2c1aa7a3575622bc/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/670b67c5cbba724c8ed85893bb866f7c4dd3fab133266f4f2c1aa7a3575622bc
Threat name:
Script-JS.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-02-27 08:57:39 UTC
File Type:
Text (JavaScript)
AV detection:
13 of 38 (34.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=m4fwprolxjzezdwylcj3xbtpprg5h6vrgmtg6tzmdkt2gv2wek6a._file
Verdict:
malicious
Label(s):
fantomcrypt
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:turkey discovery execution persistence rat
Link:
https://tria.ge/reports/260228-meyjwsay7g/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
Command and Scripting Interpreter: PowerShell
Remcos
Remcos family
Malware Config
C2 Extraction:
mrekuro.hopto.org:5675
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/670b67c5cbba724c8ed85893bb866f7c4dd3fab133266f4f2c1aa7a3575622bc

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:Base64_Encoded_Powershell_Directives
Create hunting rule
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:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
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: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_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