Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa83ba2e75774c3a…

MALICIOUS

PDF

437.3 KB Created: 2022-02-07 20:04:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: 42f7940b38a95b6ecee39b6654519c30 SHA-1: a1ec7d661805dc1d9616c85c41c8677456df0b3b SHA-256: aa83ba2e75774c3a80b54a76ae3a94174cd16f141ada28fab3d5eb8466671a92
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5781

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.
  • 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://colod.co.za/XSRYdR1H?utm_term=pasta+sheets+recipe+bbc+good+food PDF link annotation
    • http://autowassenindex.nl/images/uploads/35073510063.pdfIn PDF document text
    • http://aescantabria.es/upload/fckeditor/file///visifebajelabawev.pdfIn PDF document text
    • https://medicentrumnz.eu/medicentrum/files/file/nadomesupuminoxopu.pdfIn PDF document text
    • https://efsanepin.com/calisma2/files/uploads/99297129329.pdfIn PDF document text
    • http://bikaji.zohukum.com/ckfinder/userfiles/files/tomanefuke.pdfIn PDF document text
    • https://cakesandcupcakes.net/userfiles/files/76940155458.pdfIn PDF document text
    • http://cardealer-space.com/js/upload/files/nukewepinowokuguxubudebuz.pdfIn PDF document text
    • http://vstarmp.cn/upload/files/20211223_140715.pdfIn PDF document text
    • http://studiozammuner.eu/userfiles/files/72993857331.pdfIn PDF document text
    • http://baoveantam.info/upload/files/78112433848.pdfIn PDF document text
    • https://kontiko.com/ktkweb3/images/upload/files/dopuvamajovaliduni.pdfIn PDF document text
    • https://mut-zur-veraenderung-hambuch.de/userfiles/file/13944541656.pdfIn PDF document text
    • https://songod.vn/uploads/image/files/40970473190.pdfIn PDF document text
    • https://www.nosgroup.org/admin/assets/ckeditor/kcfinder/upload/files/96308254319.pdfIn PDF document text
    • http://reclamesticker.nl/images/uploads/file/26747979107.pdfIn PDF document text
    • http://hb-hospital.com/file_upload/fck_upfile/file/tizibebilavufisesapov.pdfIn PDF document text
    • http://clinicaveterinariaalbese.eu/userfiles/files/vinunajejaw.pdfIn PDF document text
    • http://rmidiomas.com/uploads/files/todekimekirogiretubuk.pdfIn PDF document text
    • http://chiari-web.com/ckfinder/optimist/files/83830062328.pdfIn PDF document text
    • https://3zslitomysl.cz/admin/editor/kcfinder/upload/files/nesadabadiz.pdfIn PDF document text
    • http://knupress.com/pds/editor/file/80222521666.pdfIn PDF document text
    • https://licensing-centre.poweredbypaf.com/files/gikukilekoworefojuzul.pdfIn PDF document text
    • https://wineart.online/userfiles/file/kukixifolujudoxatebapodag.pdfIn PDF document text
    • http://csc0851.com/userfiles/file/20210820003213_moje9x.pdfIn PDF document text
    • https://saintarseny.ca/sites/saintarseny.ca/files/file/tesubivakepiwazewarevu.pdfIn PDF document text
    • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/b37340a08d562ec9411789f34408a74f/dixoj.pdfIn PDF document text
    • https://lee-trading.tw/archive/upload/files/48131900497.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_off000669e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x669E6 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00068106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68106 10888 bytes
SHA-256: d6a69ac741bee82f05a46f0a1e1e250b4ff8872c07295caa78611d68c858a2a0
font_02_sfnt_off000699e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x699E7 17164 bytes
SHA-256: bc5b1191d7b7603ad2665408ac124ea91a76ca6355d9c6bc0014335531850a3e

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