Malicious PDF — malware analysis report

Static analysis result for SHA-256 a679d9717eb8a0ae…

MALICIOUS

PDF

46.3 KB Created: 2020-08-05 17:45:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42fae1302aa23f5390f2e61c72f6f1b6 SHA-1: 42d9f71a877c6c09efc8a11bf0ca2707b880a91a SHA-256: a679d9717eb8a0ae7207395b211888e367247b26869676171fd73d07088802ed
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. This suggests a link farm or SEO poisoning attack designed to funnel users to malicious content. The primary malicious URL identified is https://ttraff.ru/pify?keyword=cantilever+beam+problems+and+solutions+pdf, which is likely used to redirect users to a further malicious destination.

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=cantilever+beam+problems+and+solutions+pdf In PDF document text
    • http://files.topshelfbonsaipots.co.uk/uploads/1/3/1/3/131380848/8483372.pdfIn PDF document text
    • http://files.sargentirrigation.com/uploads/1/3/2/3/132303219/zuzuxugenopo.pdfIn PDF document text
    • http://jojele.1eam.com/uploads/1/3/1/0/131070152/vuxirozube_waliju_semokewiku.pdfIn PDF document text
    • http://files.anotheroctave.org/uploads/1/3/0/8/130874210/838342.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/1/0436/4396/1504/files/givisewovurolobixonipij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1889/6038/files/kasidedirek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6260/7520/files/jowalorawegif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1086/7871/files/woleribiwapidumufexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1536/2984/files/70449928575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31321710084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4993/4231/files/pafiwigotifim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/zipolubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/punuvejevofitipepimadawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6601/5400/files/max_function_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4192/2982/files/dewixizetujob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2583/1835/files/99957065622.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_off00006e7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E7E 5292 bytes
SHA-256: fb862730b9ac417cbab1ef6f88b7efc11775454e5eabc5ea6274616db4ff9f3a
font_01_sfnt_off00008066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8066 14000 bytes
SHA-256: dfc5c3186a1573b8e193bf2fdf433cc523ab7d101c5ce8dd2a4906c06e259640

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