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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d3cad8e219ba04895ea2e43b60b1b28e6bfb73b6348b550632fae27b3a0eb985. 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


GuLoader


Vendor detections: 9


Intelligence 9 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d3cad8e219ba04895ea2e43b60b1b28e6bfb73b6348b550632fae27b3a0eb985
SHA3-384 hash: aa7720eb0b81b15463495ff8adc5567a9fa08467004ba76412c9a35534da99332fef50383fad1a33802b09fb91c08df5
SHA1 hash: a86bb101a99a3ba4e4798ae4932ddec741bc2553
MD5 hash: 86b7d3bc5b1a5a50677db5809c5dd677
humanhash: august-solar-river-happy
File name:VERTRAG-pdf.js
Download: download sample
Signature GuLoader
Create hunting rule
File size:452'353 bytes
First seen:2026-10-05 09:01:31 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 6144:R/ndl9/0sbkhfYdGtzI0CmDSS6oLnMiKKnXLAmNMcry0XuZO/CWkQtXHeUDM:R/ndqQGt5C+jMiHX0Rc5eZctQ
TLSH T145A46C20ED34067A4F471B9DFCA50B62CABD8619462640F5F6DE070E61069FCE3FE269
Magika javascript
Reporter abuse_ch
Tags:GuLoader js

Intelligence

File Origin
# of uploads :
1
# of downloads :
172
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6acf6c1ef4e17c78f7151045
Tags:
virus shell sage
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
finger lolbin obfuscated repaired
Link:
https://www.filescan.io/uploads/6ac367acac43f24c4a3ea2c9/reports/c5cf7f07-5f74-4eea-9de5-170c48eb2f9d/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/d3cad8e219ba04895ea2e43b60b1b28e6bfb73b6348b550632fae27b3a0eb985
Verdict:
Malicious
File Type:
js
First seen:
2026-10-05T04:36:00Z UTC
Last seen:
2026-10-07T06:17:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/d3cad8e219ba04895ea2e43b60b1b28e6bfb73b6348b550632fae27b3a0eb985/results?tab=lookup
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1982222
Signature
Creates processes via WMI
Found suspicious powershell code related to unpacking or dynamic code loading
JavaScript file contains Antivirus product strings
JavaScript source code contains functionality to generate code involving a shell, file or stream
Malicious sample detected (through community Yara rule)
Obfuscated command line found
Powershell connects to network
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Switches to a custom stack to bypass stack traces
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 GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1982222 Sample: VERTRAG-pdf.js Startdate: 05/10/2026 Architecture: WINDOWS Score: 100 27 primeemberq.cfd 2->27 39 Malicious sample detected (through community Yara rule) 2->39 41 Yara detected GuLoader 2->41 43 JavaScript source code contains functionality to generate code involving a shell, file or stream 2->43 45 2 other signatures 2->45 9 wscript.exe 1 2->9         started        signatures3 process4 signatures5 47 Wscript starts Powershell (via cmd or directly) 9->47 49 Obfuscated command line found 9->49 51 Windows Scripting host queries suspicious COM object (likely to drop second stage) 9->51 53 2 other signatures 9->53 12 cmd.exe 1 9->12         started        process6 signatures7 55 Wscript starts Powershell (via cmd or directly) 12->55 15 powershell.exe 1 227 12->15         started        19 conhost.exe 12->19         started        21 cmd.exe 1 12->21         started        process8 dnsIp9 29 primeemberq.cfd 31.57.158.71, 49711, 80 AS56971AS56971CloudHK Latvia 15->29 31 Writes to foreign memory regions 15->31 33 Found suspicious powershell code related to unpacking or dynamic code loading 15->33 35 Switches to a custom stack to bypass stack traces 15->35 37 Powershell connects to network 15->37 23 backgroundTaskHost.exe 15->23         started        25 backgroundTaskHost.exe 15->25         started        signatures10 process11
Score:
83%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/d3cad8e219ba04895ea2e43b60b1b28e6bfb73b6348b550632fae27b3a0eb985
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d3cad8e219ba04895ea2e43b60b1b28e6bfb73b6348b550632fae27b3a0eb985/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-10-05 07:55:37 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=2pfnryqzxicisxvc4q5wbmnsrzv7w45wgsfvkbrs7lrhwoqoxgcq._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery execution
Link:
https://tria.ge/reports/261005-kzw6fsydme/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Executes a command shell one-liner
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
Drops file in Windows directory
Enumerates connected drives
Badlisted process makes network request
Process spawned unexpected child process
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/d3cad8e219ba04895ea2e43b60b1b28e6bfb73b6348b550632fae27b3a0eb985

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:Cerberus
Create hunting rule
Author:Jean-Philippe Teissier / @Jipe_
Description:Cerberus
Rule name:dependsonpythonailib
Create hunting rule
Author:Tim Brown
Description:Hunts for dependencies on Python AI libraries
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
Rule name:test_Malaysia
Create hunting rule
Author:rectifyq
Description:Detects file containing malaysia string
Rule name:Warp
Create hunting rule
Author:Seth Hardy
Description:Warp
Rule name:WarpStrings
Create hunting rule
Author:Seth Hardy
Description:Warp Identifying Strings

File information

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

Comments