MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7f22d7a476aec7896d52f78a5e2533b71d2fa376e01a797cccdb04e853fc089. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7f22d7a476aec7896d52f78a5e2533b71d2fa376e01a797cccdb04e853fc089
SHA3-384 hash: b940ada7cba0ac86f50abecc3f95ae8362650f28a97a7867ca6ce051f783e0ee7eb30d244b011e286ddc9d35594282c7
SHA1 hash: d23ef23e48e7aa8d91590ff579074a8367dc6597
MD5 hash: 45b6994852dde2a02cc4d56f71867892
humanhash: robin-eight-delaware-aspen
File name:RFQ_Inquiry_09-06_Nabaa_Al_Asrar_Co.js
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:15'371'536 bytes
First seen:2026-06-09 07:12:16 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 96:XwLQPirpSdPyA5Qpj7EbiHiGhQ9PK02HR3jEmqQqkqKAP1pnt2YDcWrJPCI/V7Vm:npZKAdgKMLDi4F
TLSH T187F6C7214262CB2434D3DF00F512AAD3F776FE9AB61A636488856B2C69500EB77F1F71
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika txt
Reporter lowmal3
Tags:js RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
92
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a27bcf4a15110463ee42be6
Tags:
xtreme shell sage
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
repaired
Link:
https://www.filescan.io/uploads/6a27bcea1f652d686571a9c5/reports/1411dcd6-58f2-4797-b539-e2a7969348c6/overview
Verdict:
Malicious
Labled as:
VBS/Agent.TKB trojan
Link:
https://www.hybrid-analysis.com/sample/a7f22d7a476aec7896d52f78a5e2533b71d2fa376e01a797cccdb04e853fc089
Verdict:
Malicious
File Type:
js
First seen:
2026-06-09T03:24:00Z UTC
Last seen:
2026-06-10T05:12:00Z UTC
Hits:
~1000
Detections:
Trojan.MSIL.Crypt.sb Trojan-Downloader.MSIL.Seraph.d HEUR:Trojan.VBS.Agent.gen Trojan-Downloader.MSIL.Agent.c PDM:Trojan.Win32.Generic PDM:Exploit.Win32.Generic HEUR:Trojan.Script.Generic HEUR:Trojan-Downloader.Script.Generic Trojan.VBS.SAgent.sb Trojan.JS.SAgent.sb HEUR:Trojan.Script.SAgent.gen HEUR:Exploit.Script.Generic
Link:
https://opentip.kaspersky.com/a7f22d7a476aec7896d52f78a5e2533b71d2fa376e01a797cccdb04e853fc089/results?tab=lookup
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1924902
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to register a low level keyboard hook
Contains functionality to steal Internet Explorer form passwords
Contains functionalty to change the wallpaper
Creates processes via WMI
Detected large data written to user environment variables, potentially indicating payload staging for fileless execution
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Remcos
Sigma detected: Suspicious Environment Variable Has Been Registered
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Unusual module load detection (module proxying)
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 Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1924902 Sample: RFQ_Inquiry_09-06_Nabaa_Al_... Startdate: 09/06/2026 Architecture: WINDOWS Score: 100 32 1sun.duckdns.org 2->32 34 www.google.com 2->34 36 9 other IPs or domains 2->36 42 Suricata IDS alerts for network traffic 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 50 11 other signatures 2->50 8 wscript.exe 13 2->8         started        signatures3 48 Uses dynamic DNS services 32->48 process4 signatures5 52 Suspicious powershell command line found 8->52 54 Wscript starts Powershell (via cmd or directly) 8->54 56 Bypasses PowerShell execution policy 8->56 58 4 other signatures 8->58 11 powershell.exe 14 7 8->11         started        process6 dnsIp7 40 small-morning-8be0.fsocietyandtools.workers.dev 172.67.208.40, 443, 49708 CLOUDFLARENET-CloudflareIncUS Canada 11->40 60 Writes to foreign memory regions 11->60 62 Injects a PE file into a foreign processes 11->62 15 MSBuild.exe 11->15         started        18 MSBuild.exe 4 3 11->18         started        22 conhost.exe 11->22         started        24 MSBuild.exe 11->24         started        signatures8 process9 dnsIp10 64 Contains functionality to bypass UAC (CMSTPLUA) 15->64 66 Contains functionalty to change the wallpaper 15->66 68 Contains functionality to steal Internet Explorer form passwords 15->68 74 2 other signatures 15->74 38 1sun.duckdns.org 185.161.208.152, 49709, 49710, 62885 DELTAHOST-ASUA Netherlands 18->38 26 C:\Users\user\AppData\...\Login Data.tmp, SQLite 18->26 dropped 28 C:\Users\user\AppData\...\Login Data.tmp, SQLite 18->28 dropped 30 C:\Users\user\...\Login Data For Account.tmp, SQLite 18->30 dropped 70 Detected Remcos RAT 18->70 72 Tries to harvest and steal browser information (history, passwords, etc) 18->72 file11 signatures12
Gathering data
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a7f22d7a476aec7896d52f78a5e2533b71d2fa376e01a797cccdb04e853fc089/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/a7f22d7a476aec7896d52f78a5e2533b71d2fa376e01a797cccdb04e853fc089
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u7zc26shnlwhrfwvf54klysthny5f6rxnya2pf6mzwye5bj7yceq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:photo%$ collection discovery execution rat
Link:
https://tria.ge/reports/260609-h1wvzaex6z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
Command and Scripting Interpreter: JavaScript
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Family: Remcos
Process spawned unexpected child process
Malware Config
C2 Extraction:
1sun.duckdns.org:62885
1sun-bk.duckdns.org:55793
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.16
Link:
https://yomi.yoroi.company/submissions/a7f22d7a476aec7896d52f78a5e2533b71d2fa376e01a797cccdb04e853fc089

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: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 a7f22d7a476aec7896d52f78a5e2533b71d2fa376e01a797cccdb04e853fc089

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments