Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f327bf986eed6b3…

MALICIOUS

PDF

41.0 KB Created: 2020-08-05 15:39:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e0a830e6e219c8cbd76e0ced3561796 SHA-1: f4b9c10bea3662877a32ef74f691f17df566d5fb SHA-256: 9f327bf986eed6b340e2b9f8b5bda670a163fea9c93a2fea576796d0c60898c2
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to `https://ttraff.cc/pify?keyword=beginners+guide+to+python+book+pdf`. The document body also contains this URL and numerous other links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The primary malicious URL is likely used to redirect the user to a further malicious destination. No scripts were extracted from this sample.

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=beginners+guide+to+python+book+pdf In PDF document text
    • http://files.encircledbirth.com/uploads/1/3/2/7/132740435/2629563.pdfIn PDF document text
    • http://files.ballaratplacentas.com/uploads/1/3/0/8/130873996/9a2cc3699bf1.pdfIn PDF document text
    • http://files.kaindl-us.com/uploads/1/3/1/4/131438245/df4dd33ce5f22c.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/1/0434/5865/8469/files/90771802393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8830/6586/files/bits_and_bytes_ace_academy_cse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2739/7797/files/91660652894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5361/2182/files/nadubaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3427/2159/files/wavomepub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2447/4531/files/femoliv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1340/5850/files/how_to_disable_ansel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/55339660085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0577/7832/files/24559984246.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_off0000626c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x626C 5416 bytes
SHA-256: 84dc6792d2f521c49b5815a1b4a45457abee21efc462405cf5932d5ffde69301
font_01_sfnt_off000074dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74DC 10076 bytes
SHA-256: 1140fa799df2e0a4a6e4996eb8ad52d4de2cf037b2d78face607085af31ca567

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