Malicious PDF — malware analysis report

Static analysis result for SHA-256 13c124a249b76a79…

MALICIOUS

PDF

41.7 KB Created: 2020-08-10 06:18:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a8d536b756802b90f8a6b6da0ecc77c SHA-1: 519acd04ea99c89aa2dc106b33d42a3464bff9c8 SHA-256: 13c124a249b76a7943c0e9844ee36b3fc2359fb1d4fb63a109055f19c57b2eb0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains multiple embedded URLs, with a critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains URLs that appear to be part of a link farm designed to attract users. The primary malicious URL is https://ttraff.cc/pify?keyword=d+d+artificer+revised+pdf, which likely serves as a gateway to a phishing or malware distribution site. The presence of numerous Shopify-hosted links suggests an attempt to disguise the malicious intent within a seemingly legitimate context.

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=d+d+artificer+revised+pdf In PDF document text
    • http://files.laurakretz.com/uploads/1/3/0/7/130738799/1893ae5b838483.pdfIn PDF document text
    • http://files.chattanoogaaudubon.org/uploads/1/3/0/9/130969511/fukame.pdfIn PDF document text
    • http://woguvigud.silviastitch.com/uploads/1/3/0/8/130814124/8512387.pdfIn PDF document text
    • http://files.pacificadoctor.com/uploads/1/3/1/3/131383541/a3a4fd7f.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/1/0428/2816/9375/files/elementary_classical_analysis_marsden_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7920/3992/files/pepuluxegajak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/denakevomulon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8873/0525/files/fenezaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8068/6495/files/chinua_achebe_short_stories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6304/9376/files/6110219925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5962/5627/files/pepafevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6214/8763/files/munafanobepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/memew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1745/3211/files/hernia_inguinal_pediatria_medigraphic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9947/2550/files/ugly_electrical_reference_book.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 3

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_off0000669c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x669C 5176 bytes
SHA-256: 911a887ae0a34b416ae6afa76c043ea6b791dfc088c0699b727394d243920d63
font_01_sfnt_off00007859.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7859 10016 bytes
SHA-256: d2d322de506727710bd3cec787a049a2dade0e0dec03837d33c79e01f543dae8

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