Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3a0710ecc56d33…

MALICIOUS

PDF

67.0 KB Created: 2021-12-11 23:17:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: d099be90c91621ca938b0bb7c6d327ee SHA-1: 07b33f7d52f19f9b955e5aacbf030dfc42e75cff SHA-256: 4e3a0710ecc56d334be3e9033902cd296b8caef32c95812efbda3f9585e2eccf
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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://vientangluc.com/upload/files/86313988795.pdf In PDF document text
    • https://feng-shuiworld.com/userfiles/file/wapotopon.pdfIn PDF document text
    • http://ahkjt.com/upfile/file/33877445428.pdfIn PDF document text
    • https://podgoricki-klub.me/userfiles/file/zerajiwogozoluwiwasejam.pdfIn PDF document text
    • http://www.gleason.com.au/application/third_party/ckfinder/userfiles/files/gakeponaxepopitomir.pdfIn PDF document text
    • https://jnnjhansi.com/userfiles/file/raxedisoxo.pdfIn PDF document text
    • http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/161b0eb72cf13b---genibaruj.pdfIn PDF document text
    • https://betentour.com/sites/default/files/file/69278783941.pdfIn PDF document text
    • https://livre-d-art.com/ckfinder/userfiles/files/57968089327.pdfIn PDF document text
    • http://surmounttravel.com/userfiles/files/31636164317.pdfIn PDF document text
    • https://jhservice.net/imagenes/galeria/files/gobomomoparesibumuk.pdfIn PDF document text
    • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16190bff983337---30465602679.pdfIn PDF document text
    • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619d4557902da---bebidokaterinamewimef.pdfIn PDF document text
    • http://business-baltic.com/myfiles/dok/fevasowozudiwaki.pdfIn PDF document text
    • http://www.prakashirrigation.com/uploads/fck/files/winoregijidaregidinide.pdfIn PDF document text
    • http://ttapps.mobiplay.tn/akram/know_news/admin/userfiles/file/supiladuzubetalunate.pdfIn PDF document text
    • https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/2b1cf05c88f586b910b0431d8a997012/63983563342.pdfIn PDF document text
    • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1616c828f64a6f---gonilopawopigajas.pdfIn PDF document text
    • https://grnca.org/img/files/files/kiwiliburazenoxikokuno.pdfIn PDF document text
    • http://ordineveterinarivenezia.eu/userfiles/files/logovizo.pdfIn PDF document text
    • https://cortemadera.com/wysiwygfiles/file/5290498396.pdfIn PDF document text
    • http://honmamon-s.com/img_seminar/userfiles/file/53059682554.pdfIn PDF document text
    • https://serpavenger.com/ckfinder/userfiles/files/80381257140.pdfIn PDF document text
    • http://lukoilmarine.com/ckfinder/userfiles/files/sewesav.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/2I9n2o-U8HI/uplcv?utm_term=can+f+statistic+be+negativePDF 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_off0000a504.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA504 16480 bytes
SHA-256: 67d180bab2535d92f9e7bf142ae8b165a6fe094427a16f169e5eae0a9d365abe
font_01_sfnt_off0000d00a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD00A 10484 bytes
SHA-256: cec7f3f107c2b25fbf777b0d93ac3fc91a129ea5e27e658d0d023d9ad44ba975
font_02_sfnt_off0000e819.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE819 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336