PDF malware analysis — malicious · 722c4e353d887b80

MALICIOUS

PDF

92.3 KB Created: 2021-06-30 16:14:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05

MD5: 229ebcf92076be8ab571cdb979985621 SHA-1: 65c83826a989e9849c204f85a66e63fc0464e599 SHA-256: 722c4e353d887b808ac8441e9fdb0b8a5f6da32c7c58bd7fb3b7f0b8f2201f69

172 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links to external resources, many hosted on compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. Heuristics indicate the presence of urgency lures and download buttons, common tactics in phishing campaigns. ClamAV detection and ML classification confirm the malicious nature of the file, likely a phishing lure or a downloader for further malicious payloads.

Machine Learning

Nyx PDF Classifier malicious score 0.9924

Heuristics 8

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609133bee10cd---liratogijafuzug.pdf In PDF document text
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/16094bb69521fc---90630992871.pdfIn PDF document text
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/7930f3d164c5fec20c057ef5a56f498c/gekuxofa.pdfIn PDF document text
- http://classicalgardenornaments.com/uplds/file/20615820333.pdfIn PDF document text
- https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/86d82db6cbc7bc86888bf00010093dc3/zulejerupomabagipitafewi.pdfIn PDF document text
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097bf73bed32---xosasotoluxezu.pdfIn PDF document text
- http://kleinschaden.expert/userfiles/file/mopoj.pdfIn PDF document text
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/qlbra5icdf9s2lk5tasffavk0q/53894974989.pdfIn PDF document text
- https://airbays.com/userfiles/file/negobapoloporulu.pdfIn PDF document text
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce80758220---fupidodopiluludi.pdfIn PDF document text
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc8bcb2e0d---tojuzuxaw.pdfIn PDF document text
- http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607efbe8b5c1d---viniradom.pdfIn PDF document text
- https://onhimalayas.com/ckfinder/userfiles/files/vubopekab.pdfIn PDF document text
- http://www.bufolari.com/public/immagini/file/tojenep.pdfIn PDF document text
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/db5cf6c97c72f2aeb61f0aa1dbb04b2f/tumowekivawuji.pdfIn PDF document text
- http://pinzimoniofiumicino.eu/userfiles/files/tilesoserenomonesitow.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160be71ef5d77c---29332630873.pdfIn PDF document text
- https://floridaholidayplanner.com/wp-content/plugins/super-forms/uploads/php/files/8f08a6f3adf5b9c422c9e49e7c7fbf10/91673907333.pdfIn PDF document text
- https://e-uchebnici.com/img/file/48883015455.pdfIn PDF document text
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/m4pdv9ust3b1jfo4g8rrhrudpn/munurabalubaxalebi.pdfIn PDF document text
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/ee422fd950168bdae24e62f581d25743/wodilipogufo.pdfIn PDF document text
- http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077a32968e4b---48129835971.pdfIn PDF document text
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/160900e716a769---kinusomolowema.pdfIn PDF document text
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/deppd1bs66qarfsiddrpjk23g9/luzipezemerusuz.pdfIn PDF document text
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd7ee98b0b2---78668189642.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=like+for+you+apkPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ee13.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEE13	18652 bytes
SHA-256: `b158ae17c09a540341cced254a95902785a67fc5f9a0b386e43d52a67bc62f79`
`font_01_sfnt_off00011edb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11EDB	10196 bytes
SHA-256: `25b807997a0d2b1a5d158e4121adf2ea3730a9d947b377638d0369b79f398a68`
`font_02_sfnt_off000135da.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x135DA	16188 bytes
SHA-256: `b456000c02fbcdbbdaa544d71165fc50b73daae36124307631664a9142322d6d`
`font_03_sfnt_off00014b95.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14B95	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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