Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f7ffaff055cd43…

MALICIOUS

PDF

332.6 KB Created: 2022-02-08 05:57:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-18
MD5: 1667e2e45623766d15657fa2117e4a7b SHA-1: ce2f028ca34b4f02d2f70ce3fdfb530699b3c14f SHA-256: 26f7ffaff055cd435c5335712697ab93ed914579e3ce8ce351acefe9e4d8654a
191 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8308

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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://mobilaide.com/upload/editor/file/67852219310.pdf In PDF document text
    • http://avvocato-callegaro.it/public/file/6130719403.pdfIn PDF document text
    • http://qianlong99.org/ckfinder/userfiles/files/87363818912.pdfIn PDF document text
    • https://cissud.com/uploads/ck_editor/files/28117955058.pdfIn PDF document text
    • http://happypalettebnb.com/CKEdit/upload/files/valeluxozun.pdfIn PDF document text
    • http://cluboutletmoto.net/campannas/file/kegodejisosesaxadagul.pdfIn PDF document text
    • http://jerry-cheese.com/kcfinder/upload/files/dogawuvoxasorigotodofoxo.pdfIn PDF document text
    • http://infinity8talents.com/userfiles/file/7664599405.pdfIn PDF document text
    • http://kbautotech.com/board/datafiles/imagefile/patugajufusifada.pdfIn PDF document text
    • https://sentralperdana.com/file/kilit.pdfIn PDF document text
    • http://auroraenergyproject.it/userfiles/files/nivuxoxezuboxemikipesis.pdfIn PDF document text
    • http://manpukulivermore.com/uploads/files/19228768256.pdfIn PDF document text
    • http://studiofantino.it/userfiles/files/dujane.pdfIn PDF document text
    • https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/8fb590f0d5de2bd94b010bccc6ecbe65/72702016880.pdfIn PDF document text
    • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611204ba6fa69---robiwudixezune.pdfIn PDF document text
    • http://www.alborada.es/ckfinder/userfiles/files/26383604235.pdfIn PDF document text
    • http://sbox-technology.com/upload/datoteke/vuxotevotulikuketas.pdfIn PDF document text
    • http://ginzaramen.us/uploads/files/fikejaletasimovimutejoge.pdfIn PDF document text
    • https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612ab5b302a13---75933085957.pdfIn PDF document text
    • http://harposwebdesign.nl/app/webroot/files/userfiles/files/gusasevigofuxujagek.pdfIn PDF document text
    • http://dynamic1984.com/user_file/file/81398556795.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=chicago+manual+of+style+title+capitalizationPDF link annotation
    • http://circuitvietnamcambodge.com/hinhanh/file/wuzizekafisosifozaba.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_off0004c509.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004c509.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004c509.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C509 17612 bytes
SHA-256: 54575b2ae86413f96de9d38b668b3cdbd19c10953007f6fbaf7639f88f64e7ef
font_01_sfnt_off0004f2d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F2D4 11132 bytes
SHA-256: 555c04d4acb7939fdf24a482dc19254f63c1c1076494f173118796ef926438fa
font_02_sfnt_off00050cc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50CC7 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9