Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1477e0aa47dc245…

MALICIOUS

PDF

32.3 KB Created: 2020-08-12 02:25:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dba7eeea2cd552b76de8913f4a60d9d1 SHA-1: 9135878d89fec52929ae4a296ddee22de74ab81a SHA-256: d1477e0aa47dc24524d28f613748178e35ba3ed28a503fdf872f94ff9d10d223
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body text, though partially corrupted, includes the phrase 'American heart association recipes pdf' and a URL pointing to 'ttraff.com', suggesting a lure. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm designed to manipulate search engine results or distribute content. The ML classifier strongly flagged this PDF as malicious.

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=american+heart+association+recipes+pdf In PDF document text
    • http://files.sharifmatar.com/uploads/1/3/0/8/130814636/7672799.pdfIn PDF document text
    • http://files.alioleary.com/uploads/1/3/0/8/130874029/04166cf4af.pdfIn PDF document text
    • http://files.megannasto.com/uploads/1/3/1/4/131438539/0051ef36.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/1/0429/6137/1290/files/neroxutuvivos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8411/8171/files/guzatapujabol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7697/5768/files/adjektivdeklination_nominativ_akkusativ_bungen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0898/3203/files/nofusovanugokefujotaxoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7491/2410/files/dunajewobosuzusonegexeto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7474/7545/files/87702311152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85947343199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3384/6175/files/17034894393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6418/0390/files/kekajalepekud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3894/6981/files/81056009891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/12910454936.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3074/8072/files/zedajafarejeginutonivibig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6299/2799/files/kukodugaxisejemuxakavu.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_off00004264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4264 5352 bytes
SHA-256: 599cd64ea4a24ec62a3f5aff52b1c073cf3381101b3ee0ee4dff4b17cb734bd3
font_01_sfnt_off0000545a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x545A 9464 bytes
SHA-256: b0e610e412bd816ab9aaf0a1d6a0be652a98a892a8c9cf716e35b8a5cdea0fd4

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