Malicious PDF — malware analysis report

Static analysis result for SHA-256 d072070d8c0803ca…

MALICIOUS

PDF

51.3 KB Created: 2020-08-09 21:36:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c9a775fa9bc081acc7a3bd4ed6f8f4bb SHA-1: 951c1d7c269dc33879e40d700482f80a78ac0e74 SHA-256: d072070d8c0803ca840a53e2560f8a60290be3c6d45fc0fe8d930d665435e835
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with the primary link pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=billiards+rules+pdf' and numerous other Shopify-hosted PDF links, suggesting a link farm or SEO poisoning attempt to lure users to malicious content.

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=billiards+rules+pdf In PDF document text
    • http://files.southboundgsmdc.org/uploads/1/3/0/8/130874264/5691065.pdfIn PDF document text
    • http://files.livingyourbestidlife.com/uploads/1/3/2/7/132710780/burevojotovofiwofu.pdfIn PDF document text
    • http://files.lusage.org/uploads/1/3/1/4/131437567/wuxafodevobavo.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/1/0430/6819/4978/files/37847695281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0057/8723/files/54285504366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6471/2599/files/deliberao_arsesp_732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2640/7833/files/trigonometry_tenth_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8341/5204/files/77088691484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6902/1089/files/blocked_tear_duct_massage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9649/6544/files/dinuwozejizax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9821/0461/files/fimejamox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nuruge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3482/7162/files/biophysics_lecture_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0821/2638/files/60407974326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6481/1927/files/99703166032.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_off00008d2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D2B 5084 bytes
SHA-256: 9ef97a13b604a9567231d7dba771a502d224733ba72559fc533277c1c863b55f
font_01_sfnt_off00009e87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E87 10024 bytes
SHA-256: bb1080da86bc47d552f67e3fd79eadb2bb464f3d9649ec02553bd7debce57991

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