Malicious PDF — malware analysis report

Static analysis result for SHA-256 97727104af07d1b5…

MALICIOUS

PDF

54.7 KB Created: 2020-08-12 01:40:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0ec0e036d6f5161727cf2382768d25e0 SHA-1: 0b13337c1c32e69ca403472a8c87df949dc497c8 SHA-256: 97727104af07d1b5f3d0fa81320ad9b4f633e5dc920c78b19f7d804a004d12a9
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, a technique often used in SEO poisoning to drive traffic to malicious sites. One of the primary links, 'https://ttraff.ru/pify?keyword=life+of+samuel+johnson+by+james+boswell+pdf', is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the link farm and redirector are sufficient indicators of malicious intent.

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=life+of+samuel+johnson+by+james+boswell+pdf In PDF document text
    • http://files.somax-consulting.com/uploads/1/3/1/4/131453405/pavekenamuwu.pdfIn PDF document text
    • http://files.crookedarrowpress.com/uploads/1/3/2/7/132740412/gawatunagot.pdfIn PDF document text
    • http://files.jasonmokhtarian.com/uploads/1/3/1/3/131380354/4b917aafa954086.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/1/0433/0687/7080/files/45598155969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2482/6014/files/fikejonadukavone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9543/3117/files/mythical_creatures_mod_1._7._10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9964/4314/files/13102662161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5326/0701/files/856247954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5386/6408/files/bovixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4854/3142/files/30396581121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/acids_bases_and_salts_class_10_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1618/3205/files/rupexafojanim.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_off0000983d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x983D 5536 bytes
SHA-256: 75b03b921ff3b35cddc923243ae67b0ce20eeb16c52cb39211f8e4eb5f7c795a
font_01_sfnt_off0000ab07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB07 10292 bytes
SHA-256: 62aa633f0ed24f2e9e4d433ff78ef1f4748ae81d28a348f5ae60c98ad526c1e9

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