Malicious PDF — malware analysis report

Static analysis result for SHA-256 478bf7b89a788131…

MALICIOUS

PDF

90.0 KB Created: 2021-09-10 19:52:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: c7c0d7c52889e113e79d71a7ed74f8a0 SHA-1: 0fe03aa61ce6c37d49b9550173af4baa6c034e55 SHA-256: 478bf7b89a78813138e8630003ea83f15c11334588bc786222381e085885a6ed
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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 http://hamdannepal.com/userfiles/file/xelojuregogubugaladedavaf.pdf In PDF document text
    • http://www.anieliasfx.com/uploads/textareas/file/gejelod.pdfIn PDF document text
    • http://metabolitplus.ru/files/file/27792116031.pdfIn PDF document text
    • https://intervalhousehamilton.org/ckfinder/userfiles/files/13440256884.pdfIn PDF document text
    • http://maslag.eu/userfiles/file/ligudiwodipozim.pdfIn PDF document text
    • https://asiapharma.la/files/files/78910063913.pdfIn PDF document text
    • https://europartner2.pl/uploads/kilapolilogipugabuwo.pdfIn PDF document text
    • https://taksis.lv/taksis/userfiles/file/fupin.pdfIn PDF document text
    • https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/161369d4e2a702---77715783888.pdfIn PDF document text
    • http://ms-krmelin.cz/app/webroot/files/files/womizoxenisuga.pdfIn PDF document text
    • https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/692b8441ae81f2ca7a7921e0673daf1e/nulotowudopuzazeli.pdfIn PDF document text
    • http://sterenstein.ru/userfiles/file/muleleforipuvenuto.pdfIn PDF document text
    • https://phm.vn/upload/files/nifegabe.pdfIn PDF document text
    • https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/3ee4a226d6e563d322e71b3d1e5fbba3/dikakozigizepij.pdfIn PDF document text
    • http://studiofagiani.eu/userfiles/files/gutivofipobalajojuwuxapan.pdfIn PDF document text
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/8a07e758f146e6089e6e9b332df27930/nanabakamisebo.pdfIn PDF document text
    • https://marlin-aquarium.ru/ckfinder/userfiles/files/jaliki.pdfIn PDF document text
    • https://bearings.vn/images/ckeditor/files/78333946185.pdfIn PDF document text
    • http://delta-serwis.pl/pliki/pulosu.pdfIn PDF document text
    • http://twfindia.in/userfiles/files/48873542717.pdfIn PDF document text
    • https://sleepthai.com/piceditor/file/rawupisorigalusote.pdfIn PDF document text
    • http://guanzhuli.com/userfiles/file/3512694083.pdfIn PDF document text
    • http://health-bridge.in/upload/file/temozamezimupazovisu.pdfIn PDF document text
    • https://vasantviharproperties.com/userfiles/file/botirogepok.pdfIn PDF document text
    • http://xinyuemu.net/assets/202109/files/20210903224934203385.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=nintendo+ds+animal+crossing+romPDF 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_off0000f7df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7DF 19060 bytes
SHA-256: a15c7e0c60f95307880967225a2e2282017061bc34b362f186a3606b3c384862
font_01_sfnt_off00012998.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12998 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000141af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x141AF 10692 bytes
SHA-256: bb1f858332f7bdcc39ed3c369e299eacaf1c82c3b53676ec2d9f00e728801817