Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccc47d1e0f2712f8…

MALICIOUS

PDF

94.8 KB Created: 2021-06-28 22:31:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: c240781c1141361fbedcebd9212c1346 SHA-1: 1767fd5ab239d95f201bcb97ec7ce3ec55830a37 SHA-256: ccc47d1e0f2712f81ab9c0775b19698376ea183cb21680bf07ca5a8e35b669f2
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress sites hosting PDF files, suggesting a link farm designed to distribute malicious content or phish users. The document body is heavily obfuscated, preventing a clear understanding of its direct intent beyond the presence of these malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9935

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1608e436ec6142---suzunovivenagotawokusum.pdf In PDF document text
    • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a90aa90475d---kigadubagigubibaroxad.pdfIn PDF document text
    • https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/c34b62de220a792379b40b8500ab944d/gagonibalinexivedimeri.pdfIn PDF document text
    • http://mayfamilycircle.com/clients/5/53/53cd9f4101e72b768929e5daf979c2da/File/logavatavipip.pdfIn PDF document text
    • http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd1d7787f4f---liwowusazose.pdfIn PDF document text
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075e0e3add0c---gokavidugagim.pdfIn PDF document text
    • https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/35c90fe333ac9c276733a3749fdf4cc4/13874248029.pdfIn PDF document text
    • http://driscollandgibson.com/images/edit_images/file/34823557535.pdfIn PDF document text
    • http://byty-pardubice.eu/UserFiles/File/1579672963.pdfIn PDF document text
    • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b519d1a5db3---labebovirotexenawagusukan.pdfIn PDF document text
    • http://elijasprojekts.lv/files/file/64138556331.pdfIn PDF document text
    • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/25c1fb63273f8f8d01d8660836edc2ae/17194928038.pdfIn PDF document text
    • http://huiking.cn/uploads/file/080033242204.pdfIn PDF document text
    • https://clearpatth.com/userfiles/file/nejeviw.pdfIn PDF document text
    • https://www.helpforbusymums.com/wp-content/plugins/super-forms/uploads/php/files/a25058acd2feef20628ce1c84eb77c57/pilixadepebebosudari.pdfIn PDF document text
    • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a13efc118f2---xixikif.pdfIn PDF document text
    • https://lawyerupsmart.com/tempimg/file/bopafitom.pdfIn PDF document text
    • https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/de3e8849c10ccefce5171deb0cd061f0/29614627309.pdfIn PDF document text
    • http://arlingtonhigh1960.com/clients/881088/File/82337924478.pdfIn PDF document text
    • http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c87c97093c---vurelozurizewaduwoneta.pdfIn PDF document text
    • http://bjjiffy.com/upload/10371659133.pdfIn PDF document text
    • http://midlandhigh65.com/clients/6/68/682e31fde28f8c6bff7ebba57332ef5f/File/gudavafejivob.pdfIn PDF document text
    • https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/473cj7jram4c8koami9t4l97na/pugekakajuz.pdfIn PDF document text
    • https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/g2pvm9saoj4jccdiiuhcnmufe6/sefalebesusokezerus.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=black+and+yellow+lab+mix+puppiesPDF 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.

FilenameKindSourceSize
font_00_sfnt_off00010ee0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EE0 11164 bytes
SHA-256: 684c94a6d796ad81e368e1ec1381844a86cbf07f96565be001cd470fdaf29329
font_01_sfnt_off000128d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128D2 17508 bytes
SHA-256: 8c0c2ea2d17b9ae57a1f755a2cf7bc883c34742fca5e9412290c3bf49cb9f158
font_02_sfnt_off000155d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x155D9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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