Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8688fe5142f1da…

MALICIOUS

PDF

533.6 KB Created: 2022-02-07 23:47:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 064580f27e4497594de09b37caaff23e SHA-1: 1ad12f75c4a5004ffe798264be4aa43a482e8975 SHA-256: 5d8688fe5142f1daa2a2287bd1e25472c78a60d2a559b7fe806f468e0e710b77
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4409

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.
  • 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 https://sunuf.co.za/XSRYdR1H?utm_term=airplane+wallpapers+for+android+phones PDF link annotation
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1615dcf3d54968---40534602834.pdfIn PDF document text
    • https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/db5f8a3bd732643129b82a6a2ba91f1d/85138310640.pdfIn PDF document text
    • http://tencanpowder.com/d/files/wamogezase.pdfIn PDF document text
    • https://xn--fct8ml6mwue.tw/uploads/files/totujekulabubegaviruva.pdfIn PDF document text
    • https://xn--80aaijz0c.xn--p1ai/ckfinder/userfiles/files/fenufolerokoxoxer.pdfIn PDF document text
    • http://minhledtran.com/luutru/files/77114212248.pdfIn PDF document text
    • http://htrp.ru/kcfinder/upload/files/pabomivagab.pdfIn PDF document text
    • http://kubkao-kubpla.com/userfiles/files/linoxavulejusesituj.pdfIn PDF document text
    • https://suma.ca/upload/editor/file/sitinadesejedezu.pdfIn PDF document text
    • http://apartamentykunickiego.pl/architekci/public/upload/ckfinder/userfiles/files/96755075862.pdfIn PDF document text
    • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/5851219b66eb9ed917b6eeb22ce4e5d8/nusuxowuvifeva.pdfIn PDF document text
    • http://asremajazi.com/uploads/files/42365500163.pdfIn PDF document text
    • http://masan315.net/board/imagefile/file/52990930142.pdfIn PDF document text
    • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160f36619e4146---44335673187.pdfIn PDF document text
    • https://www.truckersplantparts.co.uk/ckfinder/userfiles/files/jubebag.pdfIn PDF document text
    • http://a-b-i-s.net/layout/bilder/file/65790296509.pdfIn PDF document text
    • http://aucoindeshalles.com/menu/file/24111433859.pdfIn PDF document text
    • https://salvatoredivilio.it/userfiles/file/lefawogaliba.pdfIn PDF document text
    • http://qishuochem.com/siicea/userfiles/file/75749004479.pdfIn PDF document text
    • http://erpsamik.com/ckfinder/userfiles/files/mapafelunemuxitoke.pdfIn PDF document text
    • http://mastervin.ru/files/file/jixutulubipenez.pdfIn PDF document text
    • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/3pn67s7hbk5pkilr7e8l5lloia/46538905482.pdfIn PDF document text
    • http://hongshengfish.com/uploadfiles/2021103022302090841.pdfIn PDF document text
    • http://dachastyle.com/userfiles/file/wimozupen.pdfIn PDF document text
    • https://tinhhoaxanh.vn/userfiles/file/lozenen.pdfIn PDF document text
    • https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/hg7t0tsuijbt8uvlsn8arg8v9c/99341554507.pdfIn PDF document text
    • http://www.impactit.in/ckfinder/userfiles/files/28885021727.pdfIn PDF document text
    • http://mygotour.com/FileData/ckfinder/files/20211108_F04000F59C81586C.pdfIn PDF document text
    • http://woodlander.sk/grafika/file/12587980664.pdfIn PDF document text
    • http://hum-lucknow.org/test/fckeditor/file/18774314973.pdfIn PDF document text
    • https://bnbcostaverde.it/userfiles/file/jizeterozomeg.pdfIn PDF document text
    • http://kimbuunguyen.com/uploads/userfiles/file/44486813200.pdfIn PDF document text
    • http://profitoolinfo.ru/ckfinder/userfiles/files/pagajewa.pdfIn PDF document text
    • https://mysilo.com/upload/ckfinder/files/48614233190.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007d5d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D5D7 10564 bytes
SHA-256: 69393791f5d07ca3f32b2adac00a08ef8a7a8570267997705e5e2a6b8fd60259
font_01_sfnt_off0007ede0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDE0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000804fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x804FA 16164 bytes
SHA-256: fd494554c7a7a2c4488382a78096c535ff133766c7221992be4f6a58596b2467
font_03_sfnt_off00081a6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81A6D 16680 bytes
SHA-256: 29df9b0da6590216da49221a3813f4be21b46dd1cc51ce53b3a6538f1e52f10c