Malicious PDF — malware analysis report

Static analysis result for SHA-256 0651a7480c50c29b…

MALICIOUS

PDF

46.7 KB Created: 2020-08-08 02:30:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9f7085850c86316d61dd3facdb3d2bdd SHA-1: 31425c0b19eca09dd9384e03722cc5473ab7eda5 SHA-256: 0651a7480c50c29b3f8a0dafbcfb93f9e6691e3342559756d8c5a8f93cd4a30f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to redirectors and a link farm, suggesting a phishing or malware distribution scheme disguised as a free download. The ML classifier strongly indicated maliciousness, and the presence of a redirector URL like https://ttraff.com/pify?keyword=amazing+grace+organ+sheet+music+pdf reinforces this. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://ttraff.com/pify?keyword=amazing+grace+organ+sheet+music+pdf In PDF document text
    • http://files.updatescentral.com/uploads/1/3/1/3/131384018/fotimiva_nidanu_gibuvidedavade.pdfIn PDF document text
    • http://files.allforonefoundation.org/uploads/1/3/2/6/132681150/8177222.pdfIn PDF document text
    • http://files.strausorganizingsolutions.com/uploads/1/3/1/6/131607093/mugodup-norozogimuvig-jorepe-bufew.pdfIn PDF document text
    • http://files.lynetteingramcassel.com/uploads/1/3/1/3/131379844/9355553.pdfIn PDF document text
    • http://files.dare-tobelieve.com/uploads/1/3/1/4/131408017/xamavirawetus.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3237/8517/files/vagubukutimis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2947/1130/files/69683095418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3853/0965/files/bruce_almighty_watch_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6309/1112/files/pazoxudatenipur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sakemiribukewud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/advertisement_examples_for_students.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8909/8907/files/surewupitijuvidor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6259/9585/files/formacion_de_placa_ateromatosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2265/4362/files/10135979009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/23045053645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1648/7065/files/fisamujazefasox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9055/8622/files/65638419436.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://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F01 5576 bytes
SHA-256: 2a98df7a8ae933d3bc89cfa618d22548ec622a370dd72a5cf50c7aff03700a62
font_01_sfnt_off000081d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81D7 14072 bytes
SHA-256: 18da10e5e1d2825583ff5a24bfdad7e2750c168826c8e6a1bba8d02c4b172078

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