PDF malware analysis — malicious · 4e3a56dad8ad5adb

MALICIOUS

PDF

78.0 KB Created: 2021-11-29 13:46:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19

MD5: ed157e5b495147ea15a79e3dd615a9d9 SHA-1: b8b2ac8eee449eebf43d0c3ae7844850f0f78583 SHA-256: 4e3a56dad8ad5adbbe7d0edccd08775f195dab7af263985973992bff43f5b863

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9975

Heuristics 6

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.
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://majubesar.com/contents/files/40561653943.pdf In PDF document text
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/161462e8fe4322---rozabu.pdfIn PDF document text
- https://beaumont-residence.com/wp-content/plugins/super-forms/uploads/php/files/iond43sgmivj3e9vonnfffv3bc/zafixezuzedinawa.pdfIn PDF document text
- https://melz-feu.ru/upload/juzipilukexewojadafave.pdfIn PDF document text
- https://22importexport.com/eimages/file/40585335384.pdfIn PDF document text
- http://unstitchedfootwear.net/files/file/31654482068.pdfIn PDF document text
- http://xinchenfast.com/upload/file/fagomaloderajegimu.pdfIn PDF document text
- https://granitabrasive.hu/editor_up/50128798982.pdfIn PDF document text
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1619b2640b31d0---lekovovamomawupopakebig.pdfIn PDF document text
- https://dpt-mh.com/uploads/news/files/sobazelataxirasimexakubuj.pdfIn PDF document text
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/78e74b9c5baf26929c931779a91ca0b7/11412074821.pdfIn PDF document text
- https://learn-atdi.com/uploads/files/4646416379.pdfIn PDF document text
- http://ivankrivanek.com/userfiles/file/28944964269.pdfIn PDF document text
- http://nhactheducthammy.com/upload/files/nukebizuxarikozo.pdfIn PDF document text
- http://adasbruiloften.nl/userfiles/file/lafofajetuf.pdfIn PDF document text
- http://ivankotov.ru/img/lib/file/41621889499.pdfIn PDF document text
- http://thestarbusan.com/FileData/ckfinder/files/20211124_C54DE9DE3DE643A1.pdfIn PDF document text
- https://conviviodihera.it/dati/upload/file/66068349771.pdfIn PDF document text
- http://state-lithium.com/upload/files/vivefukovanoluzuw.pdfIn PDF document text
- http://vasa-project.org/fckupload/file/vogovixebebevut.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617d2b5cf1f0f---padokedulila.pdfIn PDF document text
- https://feedproxy.google.com/~r/Gsjc/~3/TxADE9PCSUw/uplcv?utm_term=books+by+lisa+scottoline+in+chronoloPDF 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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000cca3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCCA3	16416 bytes
SHA-256: `cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336`
`font_01_sfnt_off0000e347.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE347	10724 bytes
SHA-256: `2b385f70b8871a6bcc812ea313af98a10e1837f2d675f725b875abf90696fe83`
`font_02_sfnt_off0000fbf2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFBF2	17816 bytes
SHA-256: `dc8164d0f05247b4d108b7aa8c370862727b368a32924f9acb236a536dc524af`

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