Malicious PDF — malware analysis report

Static analysis result for SHA-256 f879147f09baa736…

MALICIOUS

PDF

207.0 KB Created: 2021-12-22 05:11:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: cbe94d9ccb1800a3f1397ef8be20f059 SHA-1: a8b43d105266054bd0fa88d20736f9ad382d32d7 SHA-256: f879147f09baa7369ab220652a3f48502ccfd13bfc7f3eb5f6bb17f886c4abb1
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7948

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.
  • 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://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/tq2rql2bmnhb56g41qsu4l6gr7/todinugogijufefelarime.pdf In PDF document text
    • https://eliteprotectiveservices.net/ckfinder/userfiles/files/pitalutekisa.pdfIn PDF document text
    • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1616f2c9a45285---79158790934.pdfIn PDF document text
    • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618fc4e3b98e1---17186727548.pdfIn PDF document text
    • http://bud-med.eu/userfiles/file/79976855399.pdfIn PDF document text
    • http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615741d7715de---23665117989.pdfIn PDF document text
    • http://antoniolescio.net/userfiles/files/47957025342.pdfIn PDF document text
    • https://x-software.cz/data/file/88272795417.pdfIn PDF document text
    • http://siamsnail.com/media/userfiles/files/nitaveporele.pdfIn PDF document text
    • http://aceonlinementors.com/userfiles/file/temopefajapolomubufifut.pdfIn PDF document text
    • http://villaelen.it/userfiles/files/rusozoj.pdfIn PDF document text
    • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/f3838b508e24635d29aefe2e0900c6e5/vamilaw.pdfIn PDF document text
    • https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/c6bc6fd62a19b9a7ba2c8eb7cb39d9d4/guvamunipevizipumumopasu.pdfIn PDF document text
    • https://parklanehotel.asia/userfiles/file/kitovoju.pdfIn PDF document text
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616c83f44bb27---virivu.pdfIn PDF document text
    • http://hotel-ambassador-nice.com/upload/files/gikoridikizewemivid.pdfIn PDF document text
    • https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/f01f76747a72ad6ffc9a2b93795d7c6f/28486960686.pdfIn PDF document text
    • http://ristoranteibucanieri.it/userfiles/files/55219413790.pdfIn PDF document text
    • http://architettoangeli.it/userfiles/files/14411113281.pdfIn PDF document text
    • https://nevjegyzek.eu/uploads/file/topajimadamitexasiki.pdfIn PDF document text
    • http://anabakorea.jp/userfiles/file/75337146353.pdfIn PDF document text
    • http://hkacca.com/userfiles/86088441385.pdfIn PDF document text
    • https://www.miroku-jp.com/system/js/kcfinder/upload/files/96595511098.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/BGAemAmcdTc/uplcv?utm_term=terraria+rainbow+dye+guidePDF 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_off0002d236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D236 10512 bytes
SHA-256: 02a3be9d150736f9c8f08b564c11a94d6f37a25baa18f7838a43edbdcd6852db
font_01_sfnt_off0002ea10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA10 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000300af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x300AF 17296 bytes
SHA-256: af96cb43bf9da9a2b419fc0b060244bf54b0f8bef81c1f40d838c4607c7f2d75