MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 544d1d3e2717f0f78c332cb3b1e234c5a6dabd2a4aff547aff382d1e802bfdcf. 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: 544d1d3e2717f0f78c332cb3b1e234c5a6dabd2a4aff547aff382d1e802bfdcf
SHA3-384 hash: 6b97c6c751b110ac38131c4556a1a0810873314996f5b82ca30e35c4767c0a36dfc0ba15387f09fb84b45e04a075e47a
SHA1 hash: 42beaa51e76a96500413f2263ff2d2f52c0e3fda
MD5 hash: 06ad3b34bb91b075be86e2c02525f428
humanhash: august-mango-kentucky-july
File name:RFx 6200306423 -RRP21-0380-PDF.JS
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'574'183 bytes
First seen:2025-05-21 07:56:39 UTC
Last seen:2025-05-23 14:20:29 UTC
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 768:a/YLCQQEhUOdEXf57D3alcCMB4VZJ0vxWHZ/Fwbm+SW5KhSlaaXhXmQZy1n:0rBPw3zQdQn
Threatray 4'119 similar samples on MalwareBazaar
TLSH T1477512D83584C442F38D8B5A356FE8546503FAA636CE88B55A53EAF0FF085B2CC4961F
Magika javascript
Reporter abuse_ch
Tags:js RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
487
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=682d8768c28c67d666437d5e
Tags:
n/a
Verdict:
Malicious
Labled as:
BZC.UGZ.Boxter.1
Link:
https://www.hybrid-analysis.com/sample/544d1d3e2717f0f78c332cb3b1e234c5a6dabd2a4aff547aff382d1e802bfdcf
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1695709
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
Delayed program exit found
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
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: Remcos
Sigma detected: Silenttrinity Stager Msbuild Activity
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
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 Powershell decode and execute
Yara detected Powershell download and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1695709 Sample: RFx 6200306423 -RRP21-0380-... Startdate: 21/05/2025 Architecture: WINDOWS Score: 100 29 hbws.cc 2->29 31 enermax-com.cc 2->31 33 4 other IPs or domains 2->33 57 Suricata IDS alerts for network traffic 2->57 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 13 other signatures 2->63 8 wscript.exe 1 1 2->8         started        11 svchost.exe 1 1 2->11         started        signatures3 process4 dnsIp5 65 JScript performs obfuscated calls to suspicious functions 8->65 67 Suspicious powershell command line found 8->67 69 Wscript starts Powershell (via cmd or directly) 8->69 71 2 other signatures 8->71 14 powershell.exe 14 15 8->14         started        39 127.0.0.1 unknown unknown 11->39 signatures6 process7 dnsIp8 41 hbws.cc 91.219.151.65, 443, 49687 RSMEDIA-ASRU Russian Federation 14->41 43 webmail.aruba.it 62.149.158.90, 443, 49682 ARUBA-ASNIT Italy 14->43 73 Writes to foreign memory regions 14->73 75 Injects a PE file into a foreign processes 14->75 18 MSBuild.exe 14->18         started        21 MSBuild.exe 2 15 14->21         started        25 conhost.exe 14->25         started        signatures9 process10 dnsIp11 45 Contains functionalty to change the wallpaper 18->45 47 Contains functionality to steal Chrome passwords or cookies 18->47 49 Contains functionality to register a low level keyboard hook 18->49 55 2 other signatures 18->55 35 enermax-com.cc 198.135.49.79, 2404, 49688 CISCOSYSTEMSUS United States 21->35 37 geoplugin.net 178.237.33.50, 49689, 80 ATOM86-ASATOM86NL Netherlands 21->37 27 C:\ProgramData\remcos\logs.dat, data 21->27 dropped 51 Detected Remcos RAT 21->51 53 Installs a global keyboard hook 21->53 file12 signatures13
Score:
97%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/544d1d3e2717f0f78c332cb3b1e234c5a6dabd2a4aff547aff382d1e802bfdcf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/544d1d3e2717f0f78c332cb3b1e234c5a6dabd2a4aff547aff382d1e802bfdcf/
Threat name:
Script-JS.Trojan.Boxter
Create hunting rule
Status:
Malicious
First seen:
2025-05-20 19:09:12 UTC
File Type:
Text (JavaScript)
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=krgr2prhc7yppdbtfsz3dyruywtnvpjkjl7vi6x7hawr5abl7xhq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0163886674b564ff8973f86966aa5d625ca41f262b04f05b1bc4adf77b3d30ba
RemcosRAT
0ac64e3c4051edae7fb30c1381b4406e4e79663e313b4dc0b6af84a460e011b0
RemcosRAT
46bd635e26e21146d449e2032e7771614808a77c315c5d9478067ed9d6d6af2a
RemcosRAT
89f12db466f60f1cf1c53d5ac9a46ca374a29566d3e1e8d1e8f5f892f6df6c4e
RemcosRAT
b2564c31effd83cb6893a5cf3e100a6fc7ca8f19e8671bceeae2b1604fc93c84
RemcosRAT
cb859f68816f0ced3b81286af4c046aee24df83455e5bccef39d6d1f818cf95f
RemcosRAT
cda178767af65f18a4cca8c662edf67f46a7acb018479cb5dc378194a3300148
RemcosRAT
error
RemcosRAT
f6e4833668ca8d61f06a531d2dbaa1ec38f0905c7a3d4523c1cb142df066d74e
RemcosRAT
f828561f75ee664450e1aac29256aa0aff6bd349232f98d33048dde78c0962bf
RemcosRAT
+ 4'109 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery execution rat
Link:
https://tria.ge/reports/250521-jyl4esgj9x/
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
Checks computer location settings
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Remcos
Remcos family
Malware Config
C2 Extraction:
enermax-com.cc:2404
flexiplast.cc:2404
truelifemed.cam:2404
Dropper Extraction:
https://webmail.aruba.it/smart/cgi-bin/ajaxfile?ACT_FIL_DL=1&PUBLICUID=@1.VFMxM0RLUmlpak5VUCt4RkdEU3luR3VzRmxneHAzUStkTzBJZythWmhBYUx6djNYVzBsV1NFYVlDNmp5b3NwMA==
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/544d1d3e2717f0f78c332cb3b1e234c5a6dabd2a4aff547aff382d1e802bfdcf

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

File information

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

Comments