MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 10f7ff0d3914d09f927252efd8813affab4ccafb552dde5c2524980e235b260a. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 10f7ff0d3914d09f927252efd8813affab4ccafb552dde5c2524980e235b260a
SHA3-384 hash: a374dc0e68941ddbbfe5bd84b67c9ceb1edf3528038d307d52c4dfe486f2ac074a97f6430c22902baed0a27132afd57e
SHA1 hash: 3d56f2b0fb0b94d88b7621c275c5ad4453d4122b
MD5 hash: 0d92b75536fda559c9d43b85159eaca5
humanhash: lemon-september-connecticut-seventeen
File name:PO-P2025090129.js
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:622'836 bytes
First seen:2025-09-24 07:00:41 UTC
Last seen:2025-09-26 13:51:22 UTC
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 12288:Zi+DUPIxgxAh0XoXqKH6fbINMSNtsYsh9DSVd4/Fvs:hxgxn4HqIM4sYsbDSniFE
Threatray 1'467 similar samples on MalwareBazaar
TLSH T15FD423735F0A4DB8EF68CF4228DD05E2476D5BA9C8F49C99A31A3B494E6A0113DF358C
Magika javascript
Reporter lowmal3
Tags:js RemcosRAT

Intelligence

File Origin
# of uploads :
6
# of downloads :
73
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68d53d7d1e4783989051cc41
Tags:
autorun remcos
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated
Link:
https://www.filescan.io/uploads/68d39749c24f53840f3014bb/reports/0f22e018-a12f-4651-af1c-35fb06287136/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/10f7ff0d3914d09f927252efd8813affab4ccafb552dde5c2524980e235b260a
Verdict:
Malicious
File Type:
js
First seen:
2025-09-24T00:48:00Z UTC
Last seen:
2025-09-24T00:48:00Z UTC
Hits:
~10000
Detections:
Trojan-Downloader.JS.Cryptoload.sb HEUR:Trojan.Script.Generic HEUR:Trojan.BAT.Obfus.gen Trojan.PowerShell.AmsiBypass.sb Trojan.JS.SAgent.sb HEUR:Trojan-Downloader.Script.Generic
Link:
https://opentip.kaspersky.com/10f7ff0d3914d09f927252efd8813affab4ccafb552dde5c2524980e235b260a/results?tab=lookup
Result
Threat name:
Remcos, PureLog Stealer, zgRAT
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1783074
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to determine the online IP of the system
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
Creates processes via WMI
Detected Remcos RAT
Drops script or batch files to the startup folder
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
JavaScript source code contains functionality to generate code involving a shell, file or stream
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Powershell drops PE file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Drops script at startup location
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Powershell Decrypt And Execute Base64 Data
Sigma detected: Remcos
Sigma detected: Suspicious PowerShell IEX Execution Patterns
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious command line found
Suspicious execution chain found
Suspicious powershell command line found
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)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell decode and execute
Yara detected PureLog Stealer
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1783074 Sample: PO-P2025090129.js Startdate: 24/09/2025 Architecture: WINDOWS Score: 100 73 api.ipify.org 2->73 75 api.findip.net 2->75 87 Suricata IDS alerts for network traffic 2->87 89 Found malware configuration 2->89 91 Malicious sample detected (through community Yara rule) 2->91 93 20 other signatures 2->93 10 wscript.exe 1 1 2->10         started        14 cmd.exe 1 2->14         started        signatures3 process4 file5 69 C:\Users\user\...\ArtificialEncoder.bat, ASCII 10->69 dropped 119 Wscript starts Powershell (via cmd or directly) 10->119 121 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->121 123 Suspicious execution chain found 10->123 125 Creates processes via WMI 10->125 16 cmd.exe 1 10->16         started        19 cmd.exe 1 14->19         started        21 conhost.exe 14->21         started        signatures6 process7 signatures8 83 Wscript starts Powershell (via cmd or directly) 16->83 85 Suspicious command line found 16->85 23 cmd.exe 1 16->23         started        26 conhost.exe 16->26         started        28 powershell.exe 19->28         started        31 conhost.exe 19->31         started        33 cmd.exe 1 19->33         started        35 timeout.exe 19->35         started        process9 file10 103 Wscript starts Powershell (via cmd or directly) 23->103 105 Suspicious command line found 23->105 37 powershell.exe 8 45 23->37         started        42 conhost.exe 23->42         started        44 cmd.exe 1 23->44         started        71 \Device\ConDrv, ASCII 28->71 dropped 107 Detected Remcos RAT 28->107 109 Suspicious powershell command line found 28->109 46 WerFault.exe 1 21 28->46         started        48 WerFault.exe 21 28->48         started        50 powershell.exe 28->50         started        signatures11 process12 dnsIp13 77 172.245.209.211, 2404, 49716, 49720 AS-COLOCROSSINGUS United States 37->77 79 api.findip.net 104.21.93.189, 443, 49748 CLOUDFLARENETUS United States 37->79 81 api.ipify.org 104.26.13.205, 443, 49747 CLOUDFLARENETUS United States 37->81 61 C:\Users\user\AppData\Local\Temp\THFA26.tmp, MS-DOS 37->61 dropped 63 C:\Users\user\AppData\Local\Temp\THF9D7.tmp, MS-DOS 37->63 dropped 65 C:\Users\user\AppData\Local\Temp\THF9A7.tmp, PE32 37->65 dropped 67 C:\Users\user\AppData\...dgeUpdate.bat, ASCII 37->67 dropped 111 Contains functionality to bypass UAC (CMSTPLUA) 37->111 113 Detected Remcos RAT 37->113 115 Suspicious powershell command line found 37->115 117 12 other signatures 37->117 52 RmClient.exe 37->52         started        55 RmClient.exe 37->55         started        57 RmClient.exe 37->57         started        59 4 other processes 37->59 file14 signatures15 process16 signatures17 95 Tries to steal Mail credentials (via file registry) 52->95 97 Tries to harvest and steal browser information (history, passwords, etc) 52->97 99 Tries to steal Instant Messenger accounts or passwords 55->99 101 Tries to steal Mail credentials (via file / registry access) 55->101
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/10f7ff0d3914d09f927252efd8813affab4ccafb552dde5c2524980e235b260a
Verdict:
Malware
YARA:
1 match(es)
Tags:
Base64 Block Contains Base64 Block DeObfuscated PowerShell
Link:
https://app.malva.re/file/0d92b75536fda559c9d43b85159eaca5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/10f7ff0d3914d09f927252efd8813affab4ccafb552dde5c2524980e235b260a/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/10f7ff0d3914d09f927252efd8813affab4ccafb552dde5c2524980e235b260a
Threat name:
Script-JS.Backdoor.Remcos
Create hunting rule
Status:
Suspicious
First seen:
2025-09-24 03:50:31 UTC
File Type:
Text
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cd376djzctij7etsklx5raj276vuzsx3kuw54xbfesma4i23eyfa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
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d50825f42162126cafad375cfe5995b2a0b632a5238ed9b66d929613e2ec7020
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d96e82d980a8872cb39e5ab834e00ea41f4572321f2e5c5a5aab71d3d03f3458
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e1a0ab5cadb0af718230bb8f907c649a313f1ff7bcbed6745c678811ce8a4465
RemcosRAT
error
RemcosRAT
+ 1'457 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos collection discovery execution rat
Link:
https://tria.ge/reports/250924-htfkeatsew/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Looks up external IP address via web service
.NET Reactor proctector
Drops startup file
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Process spawned unexpected child process
Remcos
Remcos family
Malware Config
C2 Extraction:
172.245.209.211:2404
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/10f7ff0d3914d09f927252efd8813affab4ccafb552dde5c2524980e235b260a

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:botnet_plaintext_c2
Create hunting rule
Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
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: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)

File information

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

Malspam

RemcosRAT

Java Script (JS) js 10f7ff0d3914d09f927252efd8813affab4ccafb552dde5c2524980e235b260a

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments