Malicious PDF — malware analysis report

Static analysis result for SHA-256 78272b161b4074ad…

MALICIOUS

PDF

338.7 KB Created: 2022-01-08 03:21:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 74d62b1184a5824f764213d6bf62f711 SHA-1: 16008c4643240797ae3ece17670d46b120282d93 SHA-256: 78272b161b4074ad2098acfb68c6e0590c64e1c94b8ca57db3d5674a2f7f065c
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7724

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.
  • 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 http://myucpb.com/userfiles/file/wodozoj.pdf In PDF document text
    • http://thehealingjournal.com/userfiles/file/xezivu.pdfIn PDF document text
    • http://harmony-stone.info/js/kcfinder/upload/files/vebejavibok.pdfIn PDF document text
    • http://hanauhrova.cz/files/namafajumek.pdfIn PDF document text
    • http://kingtonkatsu.com/uploads/files/19483953270.pdfIn PDF document text
    • http://akcjonariusz.com/UserFiles/file/45473058599.pdfIn PDF document text
    • https://www.ayurprakash.com/assets/uploads/files/7171528292.pdfIn PDF document text
    • https://faceless.me/userfiles/files/27662213206.pdfIn PDF document text
    • http://abwcrainhwy.com/uploads/files/fuxek.pdfIn PDF document text
    • http://www.shjkyq.com/up_files/FCK/file/96996423711.pdfIn PDF document text
    • http://cioccolatogallucci.it/userfiles/file/bokosolotuwarutifewadigi.pdfIn PDF document text
    • http://moderncarrent.com/user_img/files/33567729122.pdfIn PDF document text
    • http://riverhouse.at/pcms/content/file/kosalorixowimut.pdfIn PDF document text
    • http://bm-shower.com/userfiles/files/nenigojifixoluvejagekaj.pdfIn PDF document text
    • https://xcheck.vn/uploads/userfiles/file/migagugo.pdfIn PDF document text
    • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/ffb3127266d483a9c80c3f73df75458a/48347231197.pdfIn PDF document text
    • http://eecca.stocker-development.com/uploads/ckfinder/files/sogositerajezepekaga.pdfIn PDF document text
    • http://intertribo.sk/files/25531342259.pdfIn PDF document text
    • http://onyx-innovations.com/assets/ckfinder/userfiles/files/kenomasuxolet.pdfIn PDF document text
    • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/161cc837f61f6b---40305292470.pdfIn PDF document text
    • http://zbigniewrodak.pl/galeria/file/20224378756.pdfIn PDF document text
    • https://taptigrihnirman.com/singhania/downloads/file/gomisomuwaruguguzekari.pdfIn PDF document text
    • https://drddvichitra.com/userfiles/file/27161184586.pdfIn PDF document text
    • http://batteryzone.pk/assets/kcfinder/upload/files/xozipofofizerita.pdfIn PDF document text
    • http://rutka.pl/media/upload/files/74a8a1d533b7fead3cfe08c88a299b52.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/BcFPVxLj4jw/uplcv?utm_term=boarding+pass+air+asia+pdfPDF 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_off0004e483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E483 10448 bytes
SHA-256: 9a7ab21b26e15660bd4864a12ab84a41f7328b7a908bbd463246346b03c421d7
font_01_sfnt_off0004fc12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FC12 16212 bytes
SHA-256: 8b5f2f45ce5ecdaac4e2968822fd93948593163098b361e4b2485f5bf3a74d8a
font_02_sfnt_off000525ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x525AD 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336

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