Malicious PDF — malware analysis report

Static analysis result for SHA-256 71a2976e26120d19…

MALICIOUS

PDF

46.5 KB Created: 2020-08-14 22:55:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eafd0670280904527cd6bea184886664 SHA-1: d615ee13182208ffc90a91d9724e5f566efd420b SHA-256: 71a2976e26120d199db303f5630833db8ab53b72fe5819cb0a9813d1b45f1065
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many pointing to a redirector service identified as malicious. The document body, though heavily obfuscated, contains a URL that aligns with the malicious redirector. This suggests the primary goal is to redirect users to potentially harmful content, likely for phishing or malware delivery.

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=body+shaming+statistics+pdf In PDF document text
    • http://daregot.carolgalais.com/uploads/1/3/1/8/131872225/201e3.pdfIn PDF document text
    • http://files.holisticvieau.com/uploads/1/3/1/3/131398605/7bd4a2d9b956b07.pdfIn PDF document text
    • http://files.berkshire-epc.co.uk/uploads/1/3/0/8/130873979/nosufokawifiv.pdfIn PDF document text
    • http://files.jaredjaggers.com/uploads/1/3/1/4/131453111/susezotuwimut_vanela_babokejite.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/1/0427/9874/3719/files/datevelizebinopalexovezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8151/5673/files/fagafopizivezakupujejafop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/sanufojaxisul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/7270610014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/nikujitugod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1766/4674/files/rulovikuwobatopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1496/2848/files/61836980856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/27886337026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/0806/1604/files/english_textbook_year_5_kssr_sjk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23063093424.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_off0000772c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x772C 5592 bytes
SHA-256: 88fc8615fae83ceebb097060c635d28dde74074b628b878245d6ba15ae1bdc56
font_01_sfnt_off00008a25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A25 10292 bytes
SHA-256: f5cc7f164c79239bd4496ddf6696ca060a5e54d637d2ee4f5e11492465e5973e

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