Malicious PDF — malware analysis report

Static analysis result for SHA-256 14c21701193990f2…

MALICIOUS

PDF

414.8 KB Created: 2022-03-11 02:12:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-17
MD5: 85b55df33a4d183ad67a26d37bbdc56e SHA-1: ca903313297de2563594867f1da9584de4ab4417 SHA-256: 14c21701193990f24c386566dc601ef0233385e363d33903ab081b580b25573d
216 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4424

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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • 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.
  • 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://ahjygjg.com/upload_fck/file/2022-3-2/20220302174727890075.pdf In PDF document text
    • http://blesk-stroy.ru/userfiles/files/zejapunomulix.pdfIn PDF document text
    • http://www.kickcommerce.com/userfiles/file/23381466033.pdfIn PDF document text
    • http://studiocariola.com/userfiles/files/10042637123.pdfIn PDF document text
    • https://ladida.asia/sporlegen/administrator/imagetempfile/79569006037.pdfIn PDF document text
    • http://defendo.hu/admin/kcfinder/upload/files/zumesegedutek.pdfIn PDF document text
    • http://runnersavezzano.it/public/userfiles/file/kisumeduna.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620817b7eb922---luwivigazideniboviwig.pdfIn PDF document text
    • https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/856e679a23cfc9d61dc5998ca163a988/30658546436.pdfIn PDF document text
    • http://vinaaquachem.com/uploads/files/zovusuwesefinuwubixi.pdfIn PDF document text
    • http://swiatobrabiarek.eu/upload/File/96807163913.pdfIn PDF document text
    • https://fitxpower.fr/lib/ckeditor/kcfinder/upload/files/lomevigu.pdfIn PDF document text
    • https://callmarkinvestments.com/callmark/files/73226012093.pdfIn PDF document text
    • http://bukitjaya88.com/kcfinder/upload/files/41585278828.pdfIn PDF document text
    • https://farmaciasacoor.com/site/upload/file/11545175605.pdfIn PDF document text
    • http://cc-loges.com/uploads/file/77649527306.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/cgnf8eacod1k46bh6vchhj7v62/4087680624.pdfIn PDF document text
    • http://dsacare.com/admin/uploads/file/situbalitazaseju.pdfIn PDF document text
    • http://senyemetal.com/data/upload/file/dujisuxaropunidol.pdfIn PDF document text
    • https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/51741449145.pdfIn PDF document text
    • http://ingore.cn/upload/files/28500341331.pdfIn PDF document text
    • https://essaidafm.com/uploads/FCK_files/file/pibodelatel.pdfIn PDF document text
    • http://murzilka.biz/images/uploads/file/8762818613.pdfIn PDF document text
    • http://papinchess.ru/userfiles/file/sibiporagoluzubo.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1622558a06e10a---3424329068.pdfIn PDF document text
    • http://tearose-kitchen.com/sites/default/files/images/imcefile/75177081897.pdfIn PDF document text
    • http://panyuchen.com/ckfinder/userfiles/site_eachfun_com/files/57639614721.pdfIn PDF document text
    • http://ahxxzx.com/userfiles/202202/file/70895747105.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=sri+manjunatha+all+songs+freePDF link annotation
    • http://mislenyiallatorvos.hu/userfiles/file/22674875057.pdfIn PDF document text
    • 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 extracted file (font_00_sfnt_off00060d6f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00060d6f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00060d6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D6F 18016 bytes
SHA-256: 617af0a96cdb05748420fc507f1bbf3bd37938b7116e1d84f85b5c6f0c9986bf
font_01_sfnt_off00063bec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63BEC 10968 bytes
SHA-256: 4c02dd349dc1cb3536ff39c94d9bd50f80a1a2a24c7b991cc989b5805dbb63a3
font_02_sfnt_off0006551c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6551C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9