MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ee809eeaa7552ae3549743ebd1019518a3e079ee0eac51900fc5554a66fe1f3. 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 3 File information Comments

SHA256 hash: 4ee809eeaa7552ae3549743ebd1019518a3e079ee0eac51900fc5554a66fe1f3
SHA3-384 hash: 918f9d0b35d5f4eade0b77408c63bb55d50278308ff32673d82e759275c63693627e240b745d98772f4436c08c0c9c42
SHA1 hash: c6573bc946487e7d2945a0feec626ad318278918
MD5 hash: dd6cd2d533a932c56bb3172ddc9172a8
humanhash: illinois-stairway-xray-chicken
File name:Iamges___picture009000009909080808000800AAAAAA.hta
Download: download sample
Signature RemcosRAT
File size:109'179 bytes
First seen:2025-09-29 15:56:17 UTC
Last seen:Never
File type:HTML Application (hta) hta
MIME type:text/html
ssdeep 1536:WsfZx04DPPI8Lcsq6LzS85Ea56QJFxoBHiH:WsfZx0yPPI8d28SLQJay
TLSH T1A9B358E83F4A7CA386B3D09F6D62AD36B7516107AA40C4DC78CE509BE7117B0916B723
Magika html
Reporter abuse_ch
Tags:hta RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
52
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
94.9%
Tags:
obfuscate xtreme spawn
Result
Verdict:
Malicious
File Type:
HTA File - Malicious
Payload URLs
URL
File name
http://ixti.net/development/javascript/2011/11/11/apology-enrumbaingderumbaing-of-utf8-in-browser-with-js.html
HTA File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
File Type:
hta
First seen:
2025-09-29T09:41:00Z UTC
Last seen:
2025-09-29T09:41:00Z UTC
Hits:
~10
Detections:
Trojan-Downloader.JS.SLoad.sb Trojan.JS.SAgent.sb HEUR:Trojan.Script.Generic
Result
Threat name:
PureLog Stealer, Remcos
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
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
Found malware configuration
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: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Suspicious MSHTA Child Process
Suricata IDS alerts for network traffic
Suspicious powershell command line found
Writes to foreign memory regions
Yara detected Powershell download and execute
Yara detected PureLog Stealer
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1786106 Sample: Iamges___picture00900000990... Startdate: 29/09/2025 Architecture: WINDOWS Score: 100 27 pasteide.com 2->27 29 api.ipify.org 2->29 31 api.findip.net 2->31 45 Suricata IDS alerts for network traffic 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 11 other signatures 2->51 8 mshta.exe 1 2->8         started        11 svchost.exe 1 1 2->11         started        signatures3 process4 dnsIp5 61 Suspicious powershell command line found 8->61 14 powershell.exe 15 15 8->14         started        39 127.0.0.1 unknown unknown 11->39 signatures6 process7 dnsIp8 41 pasteide.com 94.130.69.214, 443, 49717 HETZNER-ASDE Germany 14->41 43 198.23.177.201, 49713, 80 AS-COLOCROSSINGUS United States 14->43 63 Writes to foreign memory regions 14->63 65 Injects a PE file into a foreign processes 14->65 18 CasPol.exe 4 15 14->18         started        23 conhost.exe 14->23         started        signatures9 process10 dnsIp11 33 172.245.209.139, 4552, 49720 AS-COLOCROSSINGUS United States 18->33 35 api.findip.net 104.21.93.189, 443, 49723 CLOUDFLARENETUS United States 18->35 37 api.ipify.org 172.67.74.152, 443, 49722 CLOUDFLARENETUS United States 18->37 25 C:\Users\user\Alos.dat, data 18->25 dropped 53 Contains functionality to bypass UAC (CMSTPLUA) 18->53 55 Contains functionality to determine the online IP of the system 18->55 57 Contains functionalty to change the wallpaper 18->57 59 4 other signatures 18->59 file12 signatures13
Gathering data
Threat name:
Document-HTML.Backdoor.Remcos
Status:
Malicious
First seen:
2025-09-29 13:48:48 UTC
File Type:
Text (HTML)
Extracted files:
1
AV detection:
13 of 38 (34.21%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
katzstealer remcos
Similar samples:
Result
Malware family:
Score:
  10/10
Tags:
family:remcos discovery execution rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Remcos
Remcos family
Malware Config
C2 Extraction:
172.245.209.139:4552
Dropper Extraction:
http://198.23.177.201/img/optimized_MSI.png
Please note that we are no longer able to provide a coverage score for Virus Total.

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:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:Sus_CMD_Powershell_Usage
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.

Web download

RemcosRAT

HTML Application (hta) hta 4ee809eeaa7552ae3549743ebd1019518a3e079ee0eac51900fc5554a66fe1f3

(this sample)

  
Delivery method
Distributed via web download

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