Malicious PDF — malware analysis report

Static analysis result for SHA-256 099e07b9269f9da8…

MALICIOUS

PDF

46.1 KB Created: 2020-08-14 00:54:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a4c0bcb0cebd3f0a94d755d39412c20 SHA-1: bcdfe5fc582494691c74ed10cc10c501c4e1d4df SHA-256: 099e07b9269f9da8d8991c25d8a2c6738427b6a353f4611e01ea35bb0c05da17
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains embedded links that redirect to a known malicious domain, ttraff.ru, under the guise of a 'Washington Post beginners guide to fantasy football'. This indicates a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, and multiple heuristics confirm the presence of malicious redirector links and a link farm. No scripts were extracted, but the overall pattern suggests a social engineering lure to drive users to malicious 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.ru/pify?keyword=washington+post+beginners+guide+to+fantasy+football In PDF document text
    • http://files.acct301.ehabacademy.com/uploads/1/3/1/0/131069934/9a20e16b8.pdfIn PDF document text
    • http://files.sscpn.org/uploads/1/3/1/1/131164185/8699612.pdfIn PDF document text
    • http://files.westfieldheatingandairconditioning.com/uploads/1/3/1/6/131606280/31f50b421.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/86562581376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15750122344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3796/4960/files/acute_myeloid_leukemia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1750/1852/files/tulolulifavipaxusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8787/8549/files/weboduvetul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7259/2801/files/wax_wings_gungeon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/1527459135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/46770172404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3105/0915/files/intel_hd_graphics_3000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3304/2839/files/cuddly_amigurumi_toys.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6373/6475/files/managing_engineering_and_technology_5th_edition.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 2

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_off00007663.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7663 5556 bytes
SHA-256: 40d7ce6391d0240e1a4c142c83a898eecca731c3de34ed7bafb9e4872bf9b2ca
font_01_sfnt_off00008947.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8947 9776 bytes
SHA-256: 128d525a885947d5b1a555511af3402425a712a0df24b1bced8e96aa5eba8b1f

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