Malicious PDF — malware analysis report

Static analysis result for SHA-256 7498f36209c266aa…

MALICIOUS

PDF

44.1 KB Created: 2020-08-24 23:47:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c29ccd49b6dacd6fc1ce87e86a9a6824 SHA-1: d629c8794672afd38f0bdb9b004eb7de8fe06ab5 SHA-256: 7498f36209c266aa3330de2527a425b58be531f1de2216c96000f2c608bbd9e2
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, disguised as a free download for an image converter. The ML classifier strongly indicated maliciousness, and heuristics confirm the presence of malicious redirector links and a link farm. Although no scripts were extracted, the document body and heuristics point to a phishing lure designed to redirect users to potentially harmful 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.ru/pify?keyword=image+converter+psd+to+jpg+apk In PDF document text
    • http://vegawimug.east-pto.com/uploads/1/3/0/7/130775374/7244419.pdfIn PDF document text
    • http://files.georgiatechmocktrial.com/uploads/1/3/0/8/130814594/neluwaxeketeze.pdfIn PDF document text
    • http://files.mercedffa.org/uploads/1/3/0/7/130776451/835af8be7f5675.pdfIn PDF document text
    • http://golaza.brownscustomgrips.com/uploads/1/3/0/7/130738799/e679e38.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/1/0430/1763/3949/files/google_sheets_macros_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3592/6434/files/jelulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4381/4560/files/blood_types_and_genetics_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2325/4183/files/robotica_livros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89120948070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6301/7629/files/lubep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8400/5032/files/46288647341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1247/0422/files/31181292235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5147/5351/files/38223945855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3484/4059/files/wumubedajan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4486/2114/files/beyond_the_sea_movie.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_off00006dd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD7 5496 bytes
SHA-256: 95be0b56fa7b6d2c28ea438682765bb460a9946786fb19bd8342b947e9ea8292
font_01_sfnt_off00008075.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8075 10348 bytes
SHA-256: 41ea4cc974f49a28b37e92c5215d6a0fcdfa665710a254fcecf4d103d801b525

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