Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8d827c8f732355…

MALICIOUS

PDF

265.1 KB Created: 2022-03-20 10:32:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 8ec5885bc0591de26da5f76966cec8d6 SHA-1: 6f865c3fc0b88166ef7f0963c324eb7ff1daf5b1 SHA-256: 5d8d827c8f732355b868f1ef75174327ed848fc53ba3f4e21eecae5f5e433c6c
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7309

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://yubit.co.za/XSRYdR1H?utm_term=sony+a5100+manual+settings PDF link annotation
    • https://rockvalleytravel.net/files/files/gekosojunadoxaguputu.pdfIn PDF document text
    • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16236b108222de---lodajedulijit.pdfIn PDF document text
    • https://vandolderskb.com/images/usr/votafugemunojexiwij.pdfIn PDF document text
    • http://brain-sh.tw/upload/file/85517120697.pdfIn PDF document text
    • http://galluccifaibano.com/userfiles/file/86866581627.pdfIn PDF document text
    • http://onsijsselstein.nl/userfiles/files/fuzobixobamedamesomuz.pdfIn PDF document text
    • http://rendszerguru.hu/admin/kcfinder/upload/files/dudawinukor.pdfIn PDF document text
    • http://eko-inwest.eu/upload/file/xagonakolokixijume.pdfIn PDF document text
    • https://atahca.pt/atahca_gestor/kcfinder/upload/files/65914594969.pdfIn PDF document text
    • http://finalbrand.cz/upload/file/nudigemodetejasojomuwa.pdfIn PDF document text
    • https://cihangirhotel.com/upload/ckfinder/files/dodapufoxovutepesukeve.pdfIn PDF document text
    • http://rosritual.su/app/webroot/js/ckfinder/userfiles/files/lirajijidudirariruwon.pdfIn PDF document text
    • http://thaide.org/userfiles/file/xejosatekixemirove.pdfIn PDF document text
    • http://fteq.ru/files/file/fadimaxolawi.pdfIn PDF document text
    • http://bike-aholic.com/UserFiles/file/nozogizifakuxazazopux.pdfIn PDF document text
    • http://lesboutiquesquercitaines.com/kcfinder/upload/files/kesiba.pdfIn PDF document text
    • https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/3e9a618947d41fbd1579cb79f57001f6/nonuwinaxatimasejakov.pdfIn PDF document text
    • http://program-pro.ru/userfiles/files/belezimix.pdfIn PDF document text
    • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/73b258ffccbf8d22c5a7baf4ea40e2ec/44393120042.pdfIn PDF document text
    • http://yossy.biz/userfiles/file/jaxebinafaj.pdfIn PDF document text
    • https://2acontractor.it/images/file/bikusomiwu.pdfIn PDF document text
    • http://krokodilok.hu/_user/file/movibutoxuwuwufo.pdfIn PDF document text
    • https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1623064aee0b5a---22029061863.pdfIn PDF document text
    • http://kiszelyugyvediiroda.hu/docs/file/31462753418.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_off0003abe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3ABE1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003c301.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C301 10948 bytes
SHA-256: 0b09cdced2fcaa80d99c816689fe90378e2c12a654bb878821dd07901fae7611
font_02_sfnt_off0003dc78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DC78 21736 bytes
SHA-256: 2c5348972540eb34fbac87932864b7c2b4503e911b9171fae642de648246de48