Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e12b69c30af3961…

MALICIOUS

PDF

43.4 KB Created: 2020-08-04 20:43:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 721b8e32da3405b9ba135064f33ac2b2 SHA-1: b07741efd1e464516be36a5d3eb44b10cfcd7e54 SHA-256: 7e12b69c30af3961cc2da608f256e26cb94b2dfe0e51a23eb96852cd5ce3f492
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external PDF files, many of which are hosted on Shopify. A critical heuristic identified that the PDF links to known malicious redirector infrastructure, specifically 'ttraff.cc', which is used to obscure the final destination. This suggests a phishing or scam attempt to trick users into downloading further content. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=addison+wesley+mathematics+10+pdf In PDF document text
    • http://files.nuvoicesla.org/uploads/1/3/0/8/130813134/gegosowutoneredujoju.pdfIn PDF document text
    • http://files.lesliemcgeaghhypnosis.com/uploads/1/3/1/3/131379650/xuruz_xapomula_wujemenejanafe_dukudu.pdfIn PDF document text
    • http://files.deefacepaint.com/uploads/1/3/1/4/131453588/nezusamumokilu.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/1/0431/8802/7556/files/how_to_fill_a_big_reactor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6595/6759/files/panasonic_universal_remote_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4855/0050/files/jolasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52135332303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5664/4774/files/93409350935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9482/7415/files/4394943820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29331550606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6382/0959/files/19178379672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7108/5475/files/gre_argument_pool_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1202/1657/files/40665671862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8704/4515/files/resozamirafupiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/purov.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000050b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50B9 5676 bytes
SHA-256: e4f2e85b9a94cca1beba83639c356616e3e44cd732d4eb78293683085ef284fe
font_01_sfnt_off00006400.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6400 9976 bytes
SHA-256: b534decb8328bd08b11dec775027e5e77c4fc6f3254375cd51eb6a81f12cb025
font_02_sfnt_off00008651.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8651 17200 bytes
SHA-256: d0644663986ebbb812f7c2ba20ce6348cfa331a3ca32e70c41a12a21f1cf199f

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