Malicious PDF — malware analysis report

Static analysis result for SHA-256 70febb66bda58023…

MALICIOUS

PDF

40.0 KB Created: 2020-08-07 23:32:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 254c0ab8dffd60ad89731b0ca76bc2bd SHA-1: 9b9f7dada157b239fc90121eb5b99af8366ed59d SHA-256: 70febb66bda58023a40dae14ae5d843f3731210eb93f0380b489b7f031630f9c
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body and embedded links suggest a lure to download a PDF, likely a phishing or scam attempt. The presence of multiple external links and a malicious redirector indicates a coordinated effort to drive traffic to potentially harmful content.

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/wb?keyword=cromolyn%20sodium%20davis%20pdf In PDF document text
    • http://muwij.division19students.org/uploads/1/3/0/7/130738524/7871613.pdfIn PDF document text
    • http://files.addictionrecoverymovement.com/uploads/1/3/2/6/132682171/f1981a041ee1892.pdfIn PDF document text
    • http://relage.galacticcustoms.com/uploads/1/3/2/6/132681579/xukuvunip-bigigasigopo.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/1/0432/4474/8950/files/gosubifurerotazelarunogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5041/7827/files/gilakijifaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1596/8667/files/nagalipinezokulapubuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3341/9166/files/54873369239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2482/6014/files/56975877142.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3755/5868/files/59156669464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7492/0347/files/36719728267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7533/8389/files/pelamaredawamapuged.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3963/7155/files/25168741873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9217/3217/files/xinamunitonufifiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0328/1571/files/xatimovatol.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 3

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_off00005ecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECF 5252 bytes
SHA-256: 4386002af84eda97f60d3a26bf681e447326fdffa383c9e18d1e7c8a7c8c5191
font_01_sfnt_off000070a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A1 10288 bytes
SHA-256: 339bd8dd414e31ba372e04cad5f579c8895c8aff45243b065a232dfc4197595f

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