PDF malware analysis — malicious · f2f9ae84f544dd40

MALICIOUS

PDF

233.1 KB Created: 2021-12-31 10:25:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13

MD5: 1bf3a04b6fccf6f963cc7b89a60a0f4f SHA-1: df5218925b650f417b072b6c52dff769450f6961 SHA-256: f2f9ae84f544dd402567b3bcc5df677f39ea10c6627262631be8e037820915fd

144 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.8219

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
Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK

PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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 http://malbreil.com/userfiles/file/sikivuxef.pdf In PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/161af15ab0394a---gilagepe.pdfIn PDF document text
- https://tort-art.ru/userfiles/file/xerivuturire.pdfIn PDF document text
- http://topbuild.net/content/xuploadimages/file/vupexegisusawekawik.pdfIn PDF document text
- http://resortcrimea.com/ckfinder/userfiles/files/kelubibeworenobawavop.pdfIn PDF document text
- http://free-note.kr/files/fckeditor/file/70985903761c6ce17d325e.pdfIn PDF document text
- http://sd-bada.yupucx.com/upFile/file///ITX202112160029289294.pdfIn PDF document text
- http://xn--365-pn7mwb654m2qn.com/ckupload/files/4935275086.pdfIn PDF document text
- http://www.ettermanenterprises.com/ckfinder/userfiles/files/32816111687.pdfIn PDF document text
- https://eliteprotectiveservices.net/ckfinder/userfiles/files/49835383359.pdfIn PDF document text
- http://culbertsonlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/30353168912.pdfIn PDF document text
- https://butterfly-propertymanagement.com/userfiles/file/21837521072.pdfIn PDF document text
- https://bedandbreakfastholten.nl/userfiles/file/47273499443.pdfIn PDF document text
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/2c8631e7fe8057df963c226191a65e19/jujavin.pdfIn PDF document text
- http://mayphatdienngocquang.com/media/ftp/file/7235045051.pdfIn PDF document text
- http://esenkardeslerinsaat.com/resimlerfiles/pekafavififadu.pdfIn PDF document text
- http://santiagoporter.com/js/ckfinder/core/connector/php/files/rusivuwezizusi.pdfIn PDF document text
- http://trungtamdaykem.vn/Images_upload/files/81024956753.pdfIn PDF document text
- http://soojuspilt.ee/files/file/35233400877.pdfIn PDF document text
- https://pagodatalk.com/_UploadFile/Images/file/nimifedefazaxobijor.pdfIn PDF document text
- https://fultoys.com/userfiles/81892162033.pdfIn PDF document text
- http://sanjarbek.uz/userfiles/file/vazonufinuz.pdfIn PDF document text
- http://feedproxy.google.com/~r/MbOu/~3/BGAemAmcdTc/uplcv?utm_term=materi+biosistematika+pdfPDF 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_off00033764.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x33764	10736 bytes
SHA-256: `e8868b7ffc500ce33f3a6e8e49ac155212c80293d86899c9515a79c15ac6f969`
`font_01_sfnt_off00034fe7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x34FE7	16416 bytes
SHA-256: `cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336`
`font_02_sfnt_off00036686.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x36686	17928 bytes
SHA-256: `a771088aeae3c3887afa9138509fa3a8905c079730b14d46552ae56b54e702e9`

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