Malicious PDF — malware analysis report

Static analysis result for SHA-256 f999e7f8f7df7f1d…

MALICIOUS

PDF

358.0 KB Created: 2022-01-06 13:48:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: ed7970c3c4e37f20f7ebf8f0f41862ce SHA-1: ff7202a99f8273240c08177e4fafc2853d914768 SHA-256: f999e7f8f7df7f1d328f439ccf3a8931451ca054ad07f293fc1447948c20babf
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7724

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.
  • 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.
  • 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 http://xinshifm.com/userfiles/file/fatedavidufolamufajuja.pdf In PDF document text
    • https://mlmrockstars.com/ckfinder/userfiles/files/75605982680.pdfIn PDF document text
    • https://agrimal.pl/userfiles/file/gufitusezidexolo.pdfIn PDF document text
    • http://esistore.de/userfiles/file/watumevirajofemif.pdfIn PDF document text
    • https://apteka-wratislavia.pl/halatecza/userfiles/file/zoxobawogeku.pdfIn PDF document text
    • http://aleksey-mihalchik.ru/upload/files/66144709550.pdfIn PDF document text
    • http://solyaris.pro/admin/ckfinder/userfiles/files/bigatukasenosepegopeb.pdfIn PDF document text
    • http://pandoraecza.com/genelresimler/file/91007589334.pdfIn PDF document text
    • http://korvet-sp.ru/userfiles/file/fuzuwuxomepa.pdfIn PDF document text
    • https://southafricapools.com/contents/files/14648542474.pdfIn PDF document text
    • https://mysmartedu.com/uploadimages/files/44024322697.pdfIn PDF document text
    • http://theprofitnesstrainers.com/userfiles/file/6874656053.pdfIn PDF document text
    • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/161850ea39dd49---3569002023.pdfIn PDF document text
    • http://connect-event.fr/ckfinder/userfiles/files/32358383564.pdfIn PDF document text
    • https://leanuslab.com/UserFiles/file/rikometinebaniguposimoto.pdfIn PDF document text
    • http://cukrarska-vyroba.cz/UserFiles/File/totobikumaratofusudeti.pdfIn PDF document text
    • http://mhfmjournal.com/data/22/2/55/64/2544879/user/2788947/htdocs/userfiles/file/mupulon.pdfIn PDF document text
    • http://pololanna.com/user_img/files/18338770368.pdfIn PDF document text
    • https://yumasri.com/assets/ckfinder/userfiles/files/vejabevibosaxabuzerazi.pdfIn PDF document text
    • http://archidaldegan.eu/userfiles/files/guzizegogolawutu.pdfIn PDF document text
    • http://ez-surveying.com/htdocs/cljr/data/files/pusemozevedagigikiseboki.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/pckjgvnsogjjhaarofd20dfglj/90367696043.pdfIn PDF document text
    • https://veronikavilla.hu/userfiles/file/budib.pdfIn PDF document text
    • http://thecargonepal.com/userfiles/file/nexivaroninav.pdfIn PDF document text
    • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161b3b011277c7---vefuvobafopunonerip.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/EqozwcbAC44/uplcv?utm_term=manualidades+de+reciclaje+con+botellas+de+refrescoPDF link annotation
    • 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_off00052944.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52944 18584 bytes
SHA-256: 9941c09b4c1b2859e7fd2b442102044860a3f2a7a4797ab1301f14a3ad32a3c8
font_01_sfnt_off00055790.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55790 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00056e34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56E34 10832 bytes
SHA-256: c874dead5beef80855a8801ce8c0cefacbf5be4e0410535232a95a590b9de816