Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a1b6ea456f663f7…

MALICIOUS

PDF

51.7 KB Created: 2020-08-03 18:04:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cce1ddb8b9209a69d1360634d8adb760 SHA-1: 3de1cdc1e104dce0003426eb18aeea59ee5ef6b1 SHA-256: 6a1b6ea456f663f7378e34aa9169e7fc8513ac4419c22ac764ec236f69efb562
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains the same malicious URL and other URLs that appear to be part of an SEO link farm designed to lure victims. The ML classifier also strongly indicated maliciousness.

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=carian+cole+no+tomorrow+pdf In PDF document text
    • http://files.christinebrumbaughdesign.com/uploads/1/3/2/6/132682039/9752192.pdfIn PDF document text
    • http://files.yogaskies.net/uploads/1/3/0/8/130815026/jezinelesepo.pdfIn PDF document text
    • http://files.danielleharth.com/uploads/1/3/1/8/131871938/1073206.pdfIn PDF document text
    • http://files.newfoundlandclubofnsw.com/uploads/1/3/2/6/132682171/7056080.pdfIn PDF document text
    • http://files.handsofjoyforthedeaf.com/uploads/1/3/2/3/132303339/7404985.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/1/0434/0921/1549/files/denevinakakis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0990/8637/files/poperuwabupotixef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/xageradasidusesasad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8240/7335/files/88272361310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6350/1222/files/66302908331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/85774114955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0138/7936/files/pesepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3404/8669/files/golujilamaxemodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/nilawunujekikifizuzarowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3672/9766/files/74439322948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2104/0792/files/73715119154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1908/2651/files/lewiruka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3943/8486/files/pokemon_sun_and_moon_animated_sprites.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_off00008c34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C34 5120 bytes
SHA-256: 9cb788c710130d79c9af777d69524a304607e379d0d4863127bc795a32501799
font_01_sfnt_off00009d9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D9E 10588 bytes
SHA-256: 03ea3b4998aa245ba350f343357b658a8672205520f017036c6addb0f3f88bed

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