Malicious PDF — malware analysis report

Static analysis result for SHA-256 593056ffc449a357…

MALICIOUS

PDF

44.7 KB Created: 2020-08-22 03:22:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4fd321c5aea8ebf7cbd528bce93e6f82 SHA-1: eaafa4e713dc7a5f83f0b2b8c7ac34d5b4f2dced SHA-256: 593056ffc449a357fea1f767dbb90c84efad6cebe9237bdfc9227b3ff470a02b
194 Risk Score

Malware Insights

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

The PDF document contains a link that redirects to a malicious URL, disguised with a seemingly benign lure related to diet guidelines. This is supported by multiple critical heuristics flagging the PDF as a malicious redirector and part of an SEO link farm. The ML classifier also strongly indicated maliciousness. The embedded URLs suggest an attempt to drive traffic to potentially malicious or phishing content.

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=healthy+vegetarian+diet+guidelines In PDF document text
    • http://nileve.nicolettegraceboaz.com/uploads/1/3/1/1/131164127/senuresi.pdfIn PDF document text
    • http://files.mandelnewman.com/uploads/1/3/1/3/131379828/gozuv.pdfIn PDF document text
    • http://laxijij.eaglecrestcheer.com/uploads/1/3/1/6/131636644/rumetokixe.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/1/0433/4796/8149/files/html_print_div.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9354/7426/files/synchronous_motor_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23651487672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7103/6835/files/35862256872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4421/6727/files/jiteginekewozakam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3152/6561/files/bivajaboredevirotusupaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/1418/6150/files/90927643831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9420/4825/files/2631037953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/wibun.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_off00006fa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA9 5208 bytes
SHA-256: e96a378b9a1d5ee7b6a2b8ca717bc924a07407078374a77fdbe6278f0f7bd0ef
font_01_sfnt_off0000815a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x815A 10796 bytes
SHA-256: 6d28e121965f180d7f4367ab3eb2aab56484ca54a53abeff72a7935aacce1e25

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