Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1e58fa72886b347…

MALICIOUS

PDF

49.7 KB Created: 2020-08-10 21:00:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 66effafb653955f6f8dc095d04b0acb4 SHA-1: a1355f1c42b4fb2bae24bfe89949503fcbc98927 SHA-256: d1e58fa72886b347d8dc94b69b7b2a2200a8e13a1513032c4dacf4559fe7da28
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is designed to lure users into downloading further malicious content. The document body contains text that appears to be a lure for a PDF download, further supporting this attack pattern.

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=manual+de+bergey+pdf+download+espa%25C3%25B1ol In PDF document text
    • http://files.myfantasyfootballworld.com/uploads/1/3/1/4/131438427/ranaraxipolofosi.pdfIn PDF document text
    • http://rusekanav.ps172.org/uploads/1/3/1/4/131483281/28a4f5.pdfIn PDF document text
    • http://files.stjepanpepiskuric.com/uploads/1/3/2/3/132302995/9809038.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/1/0434/2507/1256/files/56270034831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/rolegopoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7142/2115/files/3296426503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0726/2367/files/512046370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8090/8949/files/rexijajaleva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dedepisolutiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/88759788912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0046/2503/files/sozemugowiwutaguki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0879/4530/files/world_3_kancolle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1243/7662/files/putezut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3939/9842/files/nozutimizulevatenizudoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0258/5500/files/woocommerce_featured_products.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2366/2236/files/materi_belajar_bahasa_jepang.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 7

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_off0000803d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x803D 5760 bytes
SHA-256: da20d02bacd61bdcff31e914c360dce6f7faff0312a94179318a2d2bb1adf84e
font_01_sfnt_off000093b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93B5 10664 bytes
SHA-256: 87f93bf5238981235e4df1f1c2fa40283c1658cbbf8664cf6a187aaae9df094a

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