Malicious PDF — malware analysis report

Static analysis result for SHA-256 314a260c476fc4e6…

MALICIOUS

PDF

58.5 KB Created: 2020-08-09 10:43:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5070a6df197716b3d04b3308917c2e7f SHA-1: d5507324f6950ba8f6afa46f7c92ea1f8624be72 SHA-256: 314a260c476fc4e679b6a1db192b6b6ff4404511c950a7f5e545a0b5a6120f1b
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.com/pify?keyword=cefr+b1+test+pdf+%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C', is flagged as a known malicious redirector. The presence of multiple Shopify-hosted PDF links suggests an attempt to obscure the true malicious destination. No scripts were extracted, and the document body was heavily obfuscated.

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=cefr+b1+test+pdf+%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C In PDF document text
    • http://xosifatuk.mrsamartinez.com/uploads/1/3/0/8/130814328/lipuwezonoxuta.pdfIn PDF document text
    • http://files.phoenixhypnobirthing.com/uploads/1/3/0/7/130740173/pedubugepaxizo_lumat_pusop.pdfIn PDF document text
    • http://muderopuk.darrenellisdance.com/uploads/1/3/1/4/131452883/jufurizomowin.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/1/0433/7539/4977/files/novitisusuxibanaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0250/2048/files/ikea_catalogue_2020_australia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/ancel_vd500_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44240048578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58585016777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4603/4853/files/58668926422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/15996039340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9164/6880/files/nisekonukorubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3966/1981/files/black_potatoes.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_off0000969f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x969F 5520 bytes
SHA-256: f0eb8378a4df539d83b142bcfa9fab0fa0ec451223364662078c2a72df8b59c9
font_01_sfnt_off0000a984.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA984 16156 bytes
SHA-256: 3c7b548911a3da7a6d8ed9c5ef3dc8d657bd5f830e8de08c9c26ca2db2b3d745

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