Malicious PDF — malware analysis report

Static analysis result for SHA-256 97c4bbe50c6bd03e…

MALICIOUS

PDF

43.3 KB Created: 2020-08-18 13:19:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 343a22d373450006703b46774b8cf029 SHA-1: d39d593d28ee9c10c35a511b929521bc1d592919 SHA-256: 97c4bbe50c6bd03e2585456a2be91db337604e6c5d32507f5c2701c1f11c6d23
202 Risk Score

Malware Insights

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

The PDF contains a lure related to 'latest android ringtones free' and embeds numerous links, many pointing to Shopify, but one critical link redirects to 'ttraff.com'. This redirector is flagged as malicious. The document body, though heavily obfuscated, contains the same malicious URL and a benign-looking PDF link, suggesting a deceptive tactic to mask the malicious redirect. The presence of a link farm and a malicious redirector indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=latest+android+ringtones+free In PDF document text
    • http://zabun.en.katakeresztely.com/uploads/1/3/1/4/131407406/1e87c5731b8f.pdfIn PDF document text
    • http://files.whsak.com/uploads/1/3/0/7/130775045/famevajoj-lalud-nemebux-furegor.pdfIn PDF document text
    • http://files.fbcstgeorge.com/uploads/1/3/1/3/131398259/tewutasexaril.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/1/0433/1687/1333/files/dax_reference_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2914/2426/files/arithmetic_mathematics_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/44159302850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5222/6974/files/86732918774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0849/9618/files/53916643427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9140/9562/files/dugevereligatulul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7514/1794/files/kupatanamawegekeve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8086/6209/files/japugusadezijomosolelala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5455/4533/files/61102130693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0003/7527/files/livro_de_neemias_hernandes_dias_lopes.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_off00006cda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CDA 4984 bytes
SHA-256: 66570804df597b45166790058fdefc3790529dcd1af9d369f5c5e4c4c28973ef
font_01_sfnt_off00007ddd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DDD 10192 bytes
SHA-256: 16fc0f14471ce0021cfca78e19e402122ddd8eb2262cb441c0ce464848918b78

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