Malicious PDF — malware analysis report

Static analysis result for SHA-256 29347cc21552be54…

MALICIOUS

PDF

78.9 KB Created: 2020-07-24 14:30:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 18bdfacfd30ca52d35a866477a4a514c SHA-1: d85a1dd95991f2d30626dd5eebc55cb357fabc61 SHA-256: 29347cc21552be5457f38142ea087b18ec7f5b53d59c7f0f02b544aad5457cfc
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic firing indicating it's a PDF link farm. One of these links, 'https://ttraff.com/pify?keyword=magnesium+hydroxyapatite+formation', points to a known malicious redirector. The document body, though heavily obfuscated, appears to be generated content related to the link's keyword, suggesting a lure to a malicious site. The ML classifier also 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=magnesium+hydroxyapatite+formation In PDF document text
    • http://files.novanuae.com/uploads/1/3/0/7/130740349/7f2086460.pdfIn PDF document text
    • http://files.ericevolving.com/uploads/1/3/1/8/131856987/7276227.pdfIn PDF document text
    • http://files.affinitybodyworks.com/uploads/1/3/1/6/131636814/d244cf369.pdfIn PDF document text
    • http://files.lisagerstenkorn.com/uploads/1/3/1/4/131483020/5bf1d766f58acfa.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/1/0428/9835/8432/files/94662163826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0690/2950/files/60789397184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3005/2005/files/7391220836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1814/9285/files/54205896740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9095/9766/files/nobajunaja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1992/7713/files/pefoxanaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3352/5400/files/9678539507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9586/6010/files/dosevekesetupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7516/5594/files/mowedajedisezinefun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9932/4567/files/31249126533.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 7

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_off0000f602.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF602 5480 bytes
SHA-256: 3b2e314fe95e78255b3f351836d9ac44580194d3b755839f9b50f351bb5c10fa
font_01_sfnt_off00010886.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10886 11180 bytes
SHA-256: 01f9c472db4a9da1f6bc396b1f27351d504935ab02ca5936db6db0faad887c7f

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