Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1da5828857c1d4…

MALICIOUS

PDF

327.1 KB Created: 2022-03-03 06:55:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: 5a4869f7009ef953b0eeaa886ba6875c SHA-1: c6a8c795dfdde682f9b5f2e372738272c110687d SHA-256: 5a1da5828857c1d4de57dd9ebebfce43fbb066d2d49c6a5013156f2bb84c20ba
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5565

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=wowhead+alchemy+guide+classic PDF link annotation
    • http://manchetenewsms.com.br/ckfinder/userfiles/files/1608363454.pdfIn PDF document text
    • http://staresecurity.com/userfiles/file/damiw.pdfIn PDF document text
    • http://brno-skoleni.cz/ckfinder/userfiles/files/lunibejure.pdfIn PDF document text
    • http://ipsc-pv.cz/kcfinder/upload/files/nasematekotibi.pdfIn PDF document text
    • http://tobolsk.fluentrussia.ru/img/content/files/42769053857.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/viseriwaredagavarizuxomi.pdfIn PDF document text
    • http://www.bioengenharia.com.br/public/libs/kcfinder/upload/files/welano.pdfIn PDF document text
    • http://electric-kernbichler.at/gojuleweruxati.pdfIn PDF document text
    • http://topenglish.sk/app/webroot/gallery/files/jipip.pdfIn PDF document text
    • http://krevue.cz/UserFiles/File/27618826907.pdfIn PDF document text
    • http://htygroup.com/upload/files/manato.pdfIn PDF document text
    • http://dinapart.net/frontend/web/kcfinder/upload/files/joxopan.pdfIn PDF document text
    • https://www.tailormadeholidayspt.com/kcfinder/upload/files/vameziveguf.pdfIn PDF document text
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/16205527da6701---lilasokatolajosixibuja.pdfIn PDF document text
    • http://kanchanaspa.com/ckfinder/userfiles/files/gowizoz.pdfIn PDF document text
    • http://www.iharoskezmuvesek.hu/ckeditor/kcfinder/upload/files/jinukiximo.pdfIn PDF document text
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/162176760ed4e3---76848130160.pdfIn PDF document text
    • https://108pizza.pl/uploads/userfiles/files/nazawakudafizotutejunakul.pdfIn PDF document text
    • https://thefencedocumentary.ca/adminfiles/file/puvapivetexipozeme.pdfIn PDF document text
    • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/161f9da1ad120f---66571510767.pdfIn PDF document text
    • https://osiindia.org/ckfinder/userfiles/files/xilelezanufunixolidav.pdfIn PDF document text
    • https://sanmuabandoanhnghiep.org/images/content/files/5143362644.pdfIn PDF document text
    • http://www.nena-artspace.com/ckfinder/userfiles/files/87285597323.pdfIn PDF document text
    • http://jualumnitoronto.com/editor/uploadfiles/48136671595.pdfIn PDF document text
    • http://westernvintage.com/kcfinder/upload/files/68553473170.pdfIn PDF document text
    • http://muratdizayn.com/panel/kcfinder/upload/files/tigupusi.pdfIn PDF document text
    • https://intertelleader.com/FCKupload/file/devibozesumakatasaxa.pdfIn PDF document text
    • https://webrekruit.com/php_codes/Scott/VieauAssociates/code/userfiles/file/tebawomuredeli.pdfIn PDF document text
    • https://tekdalyapi.com/upload/ckfinder/files/vigusodovawemurimuzuxogo.pdfIn PDF document text
    • http://syekp.gr/sites/default/files/file/vedugirosovonibu.pdfIn PDF document text
    • http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/napigotavatu.pdfIn PDF document text
    • http://longarmacademy.net/fckeditor/userfiles/file/mevaluziwinujizojabavav.pdfIn PDF document text
    • http://roundtable106trust.org/admin/uploads/file/41229183723.pdfIn PDF document text
    • http://oks.urmon.uz/kcfinder/upload/files/45607090421.pdfIn PDF document text
    • http://chafewyuok.handysociality.com/upload/files/74289043412.pdfIn PDF document text
    • http://sachybohumin.cz/_cms7/kcfinder/upload/files/7058732277.pdfIn PDF document text
    • https://i-triada.net/upload/files/kugiruwofozolojafupize.pdfIn PDF document text
    • http://weilaimachinery.com/userfiles/files/pegijituku.pdfIn PDF document text
    • http://starejsasporocila.igorgabrovec.eu/userfiles/file/73318369179.pdfIn PDF document text
    • https://vietfun.com.vn/wp-content/plugins/super-forms/uploads/php/files/5fgdu8sev2mg9k5kj88vuku4l4/ximotofelogajanodu.pdfIn PDF document text
    • http://elskup.stycznik.eu/images/assets/file/95660887777.pdfIn PDF document text
    • http://specel.kz/app/webroot/js/kcfinder/upload/files/99609852998.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
    +1 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004a9f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A9F4 10808 bytes
SHA-256: d06c1d2233f382acee01eaa52a29ed5b46c686cd4dea9ca0d2dbd427459c9712
font_01_sfnt_off0004c2b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C2B2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004d9cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D9CF 19228 bytes
SHA-256: 6f0b2cb07f92c8635395371329a7584896402305cdb2b3b855970dc47547dd69