Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a6959ef38ce0488…

MALICIOUS

PDF

49.0 KB Created: 2020-08-01 22:56:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1430c74e5cfdcc8601c58e92a7a3a800 SHA-1: e7d753742134aeab0c06fd33c071ddba66943c2d SHA-256: 4a6959ef38ce048884f569798cf4852c8ff7893295a87714ccebc374f159b819
194 Risk Score

Malware Insights

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

The PDF contains a lure related to a Chevrolet Corvette owner's manual, combined with heuristics indicating an advance-fee scam and a malicious redirector link. The document body and embedded link point to a redirector URL, which is likely used to funnel victims to a scam page. The presence of a large number of external PDF links also suggests a link farm for SEO manipulation, further supporting the scam lure.

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.ru/pify?keyword=chevrolet+corvette+owners+manual+pdf%252F+download+free In PDF document text
    • http://files.bedfellowsmagazine.com/uploads/1/3/1/0/131069934/9000152.pdfIn PDF document text
    • http://files.fayettevillegatreeservice.com/uploads/1/3/1/3/131383949/nozinarig.pdfIn PDF document text
    • http://files.stapletonfarm.com/uploads/1/3/0/8/130814115/xizibat.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/1/0438/2723/2918/files/fubimoxotisekugifopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7238/files/28491967333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2537/5125/files/xativikepamanixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8665/2316/files/javixokusurixinaxusurixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/kofarulerakilajenusotam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4850/8311/files/11639265988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/valaruminisojuzidaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7432/9499/files/fomosekeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/24804622514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sabam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66689816557.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_off00007fc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC1 5488 bytes
SHA-256: 1b95a2a1ac04895db38b8283bdb883e40ad255aec47952086e8bb10a3549484d
font_01_sfnt_off0000925a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x925A 10560 bytes
SHA-256: c1c8ba5cf37c31f824b5a85b8817cb0c9bafb0f2032c40e7c671b5d452c1d496

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