Malicious PDF — malware analysis report

Static analysis result for SHA-256 f878e145d23aff2a…

MALICIOUS

PDF

486.6 KB Created: 2022-03-07 04:08:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 06ddbcd8b4512ec49f1c073cad9975a0 SHA-1: 7f555e8e85b58715b5a631a1a9c4df56189d52b7 SHA-256: f878e145d23aff2aac34033f5560824e59f96ff21a5ab0023685a4174f54cefe
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5107

Heuristics 7

  • 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.
  • 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.
  • 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 https://cafij.co.za/XSRYdR1H?utm_term=backyard+baseball+2015 PDF link annotation
    • http://khotelmarket.com/FileData/ckfinder/files/20220220_97723876E5EFF310.pdfIn PDF document text
    • https://zarrue.com/app/media/images_description/files/pamisufovezudawozada.pdfIn PDF document text
    • http://ahknchem.com/upload/files/65609189696.pdfIn PDF document text
    • http://schunk-app.com/js/kcfinder/upload/files/2132909576.pdfIn PDF document text
    • https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1620c20ad1724b---45968271337.pdfIn PDF document text
    • http://trevelsi.ru/ckfinder/userfiles/files/xatabir.pdfIn PDF document text
    • https://trungtammaychieu.com/ad-min/js/libs/kcfinder/upload/files/zoxazowe.pdfIn PDF document text
    • http://bjbtrh.com/files/pic/file/detojobefa.pdfIn PDF document text
    • https://thegioibaobicarton.com/Images_upload/files/98684693708.pdfIn PDF document text
    • https://merten-rozetki.su/kcfinder/upload/files/32949600273.pdfIn PDF document text
    • http://chinalabware.es/d/files/69941673926.pdfIn PDF document text
    • http://baracenter.be/userfiles/file/baneruredetegejujiz.pdfIn PDF document text
    • http://obraz-tlt.ru/userfiles/file/24905986271.pdfIn PDF document text
    • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16202ca017f62e---bijagovokeriviwoniwelolel.pdfIn PDF document text
    • http://metamorfozyayincilik.com/userfiles/file/tajof.pdfIn PDF document text
    • https://tavio.ru/files/file/4635767816.pdfIn PDF document text
    • http://sweethomedelivery.com/ckeditor/ckfinder/core/connector/php/uploads/files/43468054116.pdfIn PDF document text
    • http://2446665a.ru/ckfinder/userfiles/files/61801443481.pdfIn PDF document text
    • https://nmcs.ca/userfiles/files/puzawekadobonegigizovodul.pdfIn PDF document text
    • https://jbdclothiers.net/emailer/userfiles/file/52791281162.pdfIn PDF document text
    • https://htapigroup3.com/contents/files/9985697680.pdfIn PDF document text
    • http://westernvintage.com/kcfinder/upload/files/labusixasoleripif.pdfIn PDF document text
    • http://optometrystaprzemysl.pl/userfiles/file/49248078871.pdfIn PDF document text
    • http://skia22.ru/pic/file/75424294088.pdfIn PDF document text
    • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/a1d8332bb8b6215a0ba242904f4c8c63/povedafigujisarafujejeb.pdfIn PDF document text
    • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/16216e55394088---37700991023.pdfIn PDF document text
    • https://cmr.ribi.bg/files/22355815243.pdfIn PDF document text
    • http://anindecor.pl/files/file/dugoxo.pdfIn PDF document text
    • https://atwoodgroup.ca/atwoodtechnology/userfiles/file/pasizasisufelanikuxo.pdfIn PDF document text
    • https://duhocblueocean.vn/ckfinder/userfiles/files/36614455994.pdfIn PDF document text
    • https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/f6d1cdeb25bea1c548f34f33e8a89ae1/suzujiritekasanabijirad.pdfIn PDF document text
    • http://vangphutai.com/images/uploads/files/68807828106.pdfIn PDF document text
    • https://wonwon.taipei/photo/file/gakumiliniseluzawituto.pdfIn PDF document text
    • https://jedzenie365.pl/ckfinder/userfiles/files/93456117155.pdfIn PDF document text
    • http://studioiulianella.it/userfiles/files/50048226351.pdfIn PDF document text
    • http://poexali.org/static/image/_u/system/files/70992145109.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 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_off00072a5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72A5C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0007417c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7417C 10776 bytes
SHA-256: e2f2067315ee1d01cd628c6a9eba7556a16e446ccc355d8aa471f55c154fd84a
font_02_sfnt_off00075a9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75A9F 18436 bytes
SHA-256: 11285cd2c95f70bf89ab7d6a6398be8d68d353b555257b3cecba071b644dfc34