Malicious PDF — malware analysis report

Static analysis result for SHA-256 7931e2885d63f58f…

MALICIOUS

PDF

244.6 KB Created: 2022-03-14 01:34:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 28386cf353e4015d2e97286a3cae735a SHA-1: 5e7db8ea05b03769b080bd59c135d2ed77322103 SHA-256: 7931e2885d63f58fd504d0512d5cc0d345f426dbdb851e8f212757531222994a
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7822

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://lazav.co.za/XSRYdR1H?utm_term=mcgraw+hill+connect+online+quiz+answers PDF link annotation
    • https://citytrafik.nu/images/file/99724710809.pdfIn PDF document text
    • https://explonorte.com/admin/files/files/40841623309.pdfIn PDF document text
    • https://shioturboapi4-xyz.com/contents/files/58088030166.pdfIn PDF document text
    • https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/a9b19def18a227ecab2654c0452d9983/76904743147.pdfIn PDF document text
    • http://dalnoboy.org/data/filestorage/upload/files/gofufoleru.pdfIn PDF document text
    • https://guehenno.kendalch.com/upload/files/pukesi.pdfIn PDF document text
    • http://client.diffuse.info/files/lovasizipa.pdfIn PDF document text
    • http://yachtandtrade.com/files/44539418801.pdfIn PDF document text
    • http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/16227d2bdac423---2881541701.pdfIn PDF document text
    • http://okinawa-touch.com/app/webroot/js/kcfinder/upload/files/66223560631.pdfIn PDF document text
    • http://gianniarnaudo.com/userfiles/files/mumolame.pdfIn PDF document text
    • https://loppisidjupdalen.se/images/uploaded/file/zogifuzukidiluvepuxisa.pdfIn PDF document text
    • http://thuephotocopytaihanoi.com/upload/files/mudotakiwarotuxiluteg.pdfIn PDF document text
    • http://ghefoot.com/fckeditor_userfiles/file/65724259059.pdfIn PDF document text
    • http://apple888.vn/luutru/files/sogavotakomob.pdfIn PDF document text
    • http://jncs.kr/page_data/file/20220206101355.pdfIn PDF document text
    • https://sd.martabemitrasosial.com/editor/files/fubuwobalonipudezebugena.pdfIn PDF document text
    • http://nikkenj.com/userfiles/file/lirukujeniranilasugut.pdfIn PDF document text
    • http://pomocnaukowa.net/Upload/file/sukugazuredaloxol.pdfIn PDF document text
    • http://veszpremkosar.hu/_user/file/30419047600.pdfIn PDF document text
    • https://actaviaserica.org/board/file/files/jopusizudopinifareju.pdfIn PDF document text
    • https://almuhja.com/ckfinder/userfiles/files/19100497161.pdfIn PDF document text
    • https://angkalaris.com/contents/files/rukuninozavafiki.pdfIn PDF document text
    • https://inflexi.com/kcfinder/upload/files/xevovududu.pdfIn PDF document text
    • http://goansausages.com/admin/ckeditor/kcfinder/upload/files/69586614408.pdfIn PDF document text
    • http://ocalsandalye.com/panel/kcfinder/upload/files/50815375205.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_off0003642c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3642C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00037b4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37B4C 10892 bytes
SHA-256: 4997d5a6731e86027018f8f185b4ab4a3fb8250ecd51980ce64976fafd3f36ec
font_02_sfnt_off00039448.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39448 18212 bytes
SHA-256: 0eb041c56278703c398fa21b431c0af3d11263c6157073671cab02c1c29d6203

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