Malicious PDF — malware analysis report

Static analysis result for SHA-256 3feefba4ca3858a1…

MALICIOUS

PDF

45.2 KB Created: 2020-08-17 00:31:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6189051c787c69707171f2aa18dc3b03 SHA-1: 3ffb3a9b72a54004449840a4baa594d28b397152 SHA-256: 3feefba4ca3858a18d696f16720dec21e95394ebe2edd634b461f8c8b35faca2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in conjunction with a lure related to the 'FDA medical device reporting database'. The document also contains a large number of embedded links, many pointing to shopify.com domains, suggesting a link farm or SEO poisoning tactic. The primary malicious URL is 'https://ttraff.com/pify?keyword=fda+medical+device+reporting+database', which is likely used to redirect users to a malicious site. No scripts were extracted from this sample.

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=fda+medical+device+reporting+database In PDF document text
    • http://files.bluebirdvignettes.com/uploads/1/3/1/4/131407227/6460915.pdfIn PDF document text
    • http://files.dmaig.org/uploads/1/3/1/6/131636954/wanoj.pdfIn PDF document text
    • http://kudaposu.togethergolden.com/uploads/1/3/1/3/131383664/luwed_mewaxebilunuvex.pdfIn PDF document text
    • http://files.atticapothecary.com/uploads/1/3/2/6/132682663/289780.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/1/0433/0189/6347/files/cancer_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3918/6344/files/english_words_with_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0281/4876/files/segunujadamuvedonutemomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/fibesasozanivit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/4678927727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/61149659229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2031/9893/files/arnold_chiari_type_ii_malformation_syringomyelia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7510/9013/files/90002640237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1791/8870/files/1831012062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4759/8742/files/38886404052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/phonics_three_letter_words.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0890/9734/files/54069814864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5458/0391/files/99863634705.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 6

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_off0000726a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x726A 5548 bytes
SHA-256: 47a8dc6ffed8d1f65a9b5d2340e2afd719f26de7ae2beba32832d9830ed4f4cf
font_01_sfnt_off0000852e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x852E 10024 bytes
SHA-256: d753158de9d82802e988830c18bef71fb1bffc69d847381557d15077c2fd51e3

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