Malicious PDF — malware analysis report

Static analysis result for SHA-256 edf06670004bc735…

MALICIOUS

PDF

51.7 KB Created: 2020-08-19 18:41:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f775150c792cef3a2ae7a91cf7775dbe SHA-1: 19a5b0d336127d55ac54fd88b1239f4563237789 SHA-256: edf06670004bc73525b1638d398859644e796b97ae103945ba9c13e05d3c1b29
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The document body, though partially corrupted, contains a URL that points to a known malicious redirector. The presence of numerous embedded links, including a large list within an object, strongly suggests an attempt to lure users to malicious sites.

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=guided+elk+hunts+in+arizona In PDF document text
    • http://pinow.makeandtakeworkshop.ca/uploads/1/3/1/4/131452839/ebbe2f401a22b.pdfIn PDF document text
    • http://files.writespacejerusalem.com/uploads/1/3/1/3/131380005/setot_nejilanimugag_bazumudopibugor_soforimuvepazid.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/1/0433/0517/3147/files/nukisixivevijuro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0683/5358/files/photoshop_cs6_for_dummies_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9948/8410/files/bovuruxutemedanipefolug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/marifurozijuzaledenikegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5671/6186/files/57437434002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3813/8783/files/vsepr_theory_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6022/3382/files/bastille_album_doom_days.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7325/files/73870631177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3144/5149/files/apprendre_l_espagnol_cours_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4529/6027/files/what_s_so_amazing_about_grace_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2327/7973/files/factors_responsible_for_nationalist_movement_in_nigeria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/8260/0868/files/viluwulipavegawezude.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 4

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_off00008c9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C9A 5060 bytes
SHA-256: fa3ce8b13202c9c09830858484dc65e53d7c072da063cdd4e5fcd2406f85d1e5
font_01_sfnt_off00009dc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DC0 10540 bytes
SHA-256: 739d2c769797968d4b695afb6952164431d377412a8419c51d7c4f62a291a7a8

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