Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87c98784bf30515…

MALICIOUS

PDF

441.6 KB Created: 2022-01-03 09:18:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 3a0d22d30e5f30924dee32395fc3b39d SHA-1: 7c9276df2e47e26e243bfe1b1f7306de2cc5d961 SHA-256: f87c98784bf30515190e7d0b53e2e5c9cc9e6e681054ddcfa6d2450b8c9879cc
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5902

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://ibtaker.ps/userfiles/file/momuzonikiw.pdf In PDF document text
    • http://bsribd.org/journal/assets/ckeditor/kcfinder/upload/files/wedidabamawuridex.pdfIn PDF document text
    • https://roarmysecurity.ro/mm/file/vopotegiteg.pdfIn PDF document text
    • http://huerural.com/uploads/image/files/86113713537.pdfIn PDF document text
    • https://guitarenko.fr/img/files/kajogumimagasizup.pdfIn PDF document text
    • https://angkortaxiservice.com/userfiles/file/76528050387.pdfIn PDF document text
    • https://fundacjaartfreeart.pl/userfiles/file/povuxir.pdfIn PDF document text
    • http://turchifiltri.com/userfiles/files/xemogod.pdfIn PDF document text
    • https://modellszerviz.hu/userfiles/file/wujekatejeda.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619794131786a---nepokolisirasagoko.pdfIn PDF document text
    • http://lnshiyue.com/userfiles/file/20211111085818_863066413.pdfIn PDF document text
    • http://adec-interiors.net/Uploads/file/85020473446.pdfIn PDF document text
    • https://hondamienbac.vn/userfiles/file/3805888812.pdfIn PDF document text
    • http://albertopizzetti.it/userfiles/files/fokimipevuwutokesikugana.pdfIn PDF document text
    • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b7c0daed476---torilebosodali.pdfIn PDF document text
    • https://il-gusto.com/images/file/nidulibekaxi.pdfIn PDF document text
    • http://ominocoibaffi.it/userfiles/files/lofoxazuna.pdfIn PDF document text
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1616b282c4bbea---ledovugerazok.pdfIn PDF document text
    • https://gtnet-engine.com/ckfinder/userfiles/files/zetosab.pdfIn PDF document text
    • https://prestinireedcorp.com/userfiles/files/3402788084.pdfIn PDF document text
    • https://www.aillant-sur-tholon.com/ckfinder/userfiles/files/zaniperojibexosaxodedoguk.pdfIn PDF document text
    • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619347af49235---mumadulafudomebula.pdfIn PDF document text
    • https://movie2book.com/userfiles/file/midefopasevusowug.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/161c53565d9b44---bepedag.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/EqozwcbAC44/uplcv?utm_term=vanilla+wow+alliance+leveling+guide+20-+30PDF 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_off00067596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67596 19632 bytes
SHA-256: c4b5ce7dfa0040bb5f3306d811a8050d6355d8509a7cd40aa0ae605795152141
font_01_sfnt_off0006a834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A834 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0006bed8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BED8 10848 bytes
SHA-256: 96fb615309ac2a8cd4281d85934eedf25a08159c29d5802d80113ba0941a5168