Malicious PDF — malware analysis report

Static analysis result for SHA-256 9491333dd02faee1…

MALICIOUS

PDF

342.2 KB Created: 2022-03-24 23:58:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-11
MD5: 92d6fa1af01c849770dcb94af006f118 SHA-1: 483a148f04ca006b170e8d269189129531d81725 SHA-256: 9491333dd02faee1d870f499da58e508c879b900eef6bfe51992731a4199db1c
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7583

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
  • 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.
  • 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://tevav.co.za/XSRYdR1H?utm_term=www.+onlineelt.+com+portafolio PDF link annotation
    • http://stonestudio.pl/files/upload/file/jaluwove.pdfIn PDF document text
    • http://obras.ru/sites/default/files/uploads/rexodovudazujupi.pdfIn PDF document text
    • http://ucinnovation.ru/admin/ckfinder/userfiles/files/silifavijalibajivadupise.pdfIn PDF document text
    • http://0228339500.kad.tw/kads/ckfinder/userfiles/files/90469493027.pdfIn PDF document text
    • http://strandedtattoo.info/file/zirakunuvuve.pdfIn PDF document text
    • http://ares-gunshop.sk/admin/ckeditor/kcfinder/upload/files/posesinivabunixujekek.pdfIn PDF document text
    • http://ccadl.com/files/20220216115703.pdfIn PDF document text
    • https://childrencareandliteracysociety.org/userfiles/files/sugediwawawederevixofo.pdfIn PDF document text
    • http://krajcsovicz.hu/kcfinder/upload/files/82952075694.pdfIn PDF document text
    • http://association-femmes-relais-aulnay.communication-pro.fr/public/1160/contenu/file/komufedosomegemotumegos.pdfIn PDF document text
    • http://ferien-in-zahren.de/images/file/75678416877.pdfIn PDF document text
    • http://www.binghan.my/userfiles/file/31493802602.pdfIn PDF document text
    • http://thietbikhachsanvinhhung1.com/upload/files/miwikarezitagifovakax.pdfIn PDF document text
    • http://cudicio.it/images/file/83268723624.pdfIn PDF document text
    • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/sljd80tv5s06p0sqp049tsdcm4/ruvekuja.pdfIn PDF document text
    • https://elemental-ia.com/userfiles/file/venum.pdfIn PDF document text
    • https://www.seminariosanpiox.it/ckeditor/kcfinder/upload/files/56782379711.pdfIn PDF document text
    • http://paroissedementon.fr/upload/files/rukelifemuzirogidatuso.pdfIn PDF document text
    • https://srccaa.bdbabymart.com/app/webroot/ckfinder/userfiles/files/kamawefisotetik.pdfIn PDF document text
    • https://chiataiec.com/userfiles/Proj_Name/files/23532601245.pdfIn PDF document text
    • http://unii-dz.org/app/webroot/js/kcfinder/upload/files/81590243408.pdfIn PDF document text
    • https://eurosan.pl/user_images/file/ledepuzobijiseledow.pdfIn PDF document text
    • https://kimansion.com/uploads/file/nonapisetetofeserewojinu.pdfIn PDF document text
    • http://jdjcnc.com/upfolder/e/files/20220214075031.pdfIn PDF document text
    • http://lifecare4all.com/upload/files/29563852470.pdfIn PDF document text
    • https://cbrn.tj/nrsa_system/ckeditor/kcfinder/upload/files/farovewepasudapajapidi.pdfIn PDF document text
    • https://ehotelgateway.com/bot/ckfinder/uf/files/5086365176.pdfIn PDF document text
    • http://invenger.net/admin/ckeditor/kcfinder/upload/files/4207189096.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_off0004e7b0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004e7b0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004e7b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E7B0 19284 bytes
SHA-256: e5bb5ec82d16ad5f68c183e5a098ba1b078fbcdd8b22f0920bb03208956402f0
font_01_sfnt_off00051a8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51A8A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000531aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x531AA 10616 bytes
SHA-256: baa9dddde776792bdb47d7d782fa68ae4fcf311e53aca360eec81c11c20637ea