Malicious PDF — malware analysis report

Static analysis result for SHA-256 9416c0d2aab0d164…

MALICIOUS

PDF

89.0 KB Created: 2021-09-19 23:55:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 67ab358d7b7f2c173ff65edbfbd6f3ae SHA-1: d431cc02c898fedc1cfb01210419eab11fd6d531 SHA-256: 9416c0d2aab0d1641298c982674c16d740165e15cb9dbfae1087aa82b22d4b5a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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 https://medvor.ru/uplcv?utm_term=rolling+stones+far+away+eyes+chords PDF link annotation
    • http://artstudiodesign.it/userfiles/files/jagonuzamirop.pdfIn PDF document text
    • https://polaria.cz/images/file/liwolowiwit.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132229fb67e5---xozet.pdfIn PDF document text
    • http://regimhotelierbucuresti.com/images/userfiles/64762425110.pdfIn PDF document text
    • https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/0d6848ad7c3ae773b28811dd0275da90/57167818161.pdfIn PDF document text
    • https://www.bmo-agencement.fr/ckfinder/userfiles/files/8028548601.pdfIn PDF document text
    • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/77117d6b2116e164b2a231187f177f86/97820466504.pdfIn PDF document text
    • http://huyminhplastic.com/upload/files/jifupa.pdfIn PDF document text
    • http://tajesink.com/Uploadfiles/files/94428255811.pdfIn PDF document text
    • http://vipnovini.bg/root/f/uploads/files/fugaroxowasisoxirivil.pdfIn PDF document text
    • http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161362b496ae77---setipavoxilexefeseda.pdfIn PDF document text
    • http://alconsprom.ru/ckfinder/userfiles/files/vofedojexiviguzo.pdfIn PDF document text
    • http://brmhn.com/userfiles/file/20210919151323_e59w67.pdfIn PDF document text
    • http://nrgmedia.hu/files/file/37105361948.pdfIn PDF document text
    • http://clinicaveterinariabilancino.it/userfiles/files/44735338232.pdfIn PDF document text
    • http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146f43eaab3b---wejigokuzoxumativupebajaj.pdfIn PDF document text
    • https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/b3fd12f0a890029c2ea7cd6fa89e7f1a/fedatipenumapebuporapoje.pdfIn PDF document text
    • http://aallergy.friend-match.com/upload/files/96308804705.pdfIn PDF document text
    • https://a-1commercialkitchenservices.com/ckfinder/userfiles/files/sosaroxor.pdfIn PDF document text
    • https://eco-translation.ca/upload/editor/file/53165361338.pdfIn PDF document text
    • http://droneducational.com/admin/userfiles/file/71876667971.pdfIn PDF document text
    • http://kimsanghun.com/upload/userfiles/file/2021917285997.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_off0000f81d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF81D 17204 bytes
SHA-256: 1aa397fc7556c912499fb1d3ef2e1ee45b0ab2b66a4808837ba58f28c9c5142a
font_01_sfnt_off000124a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124A4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013cbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CBB 11000 bytes
SHA-256: 3341a93a629e81613fb143d616ffd216970d98ac336c5de7a84aa06b3b0a8141