Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9946988e0b08098…

MALICIOUS

PDF

49.5 KB Created: 2020-08-09 18:49:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 08027ba72e1cbb2c696021e7b0348cd4 SHA-1: 9a4ce4a37ca9fa5427ff2c7f41adab25a936e86e SHA-256: d9946988e0b08098a26b8c48adce0dfd4cceb5e93a1a45a3c2621f6a855012be
194 Risk Score

Malware Insights

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

The PDF document contains a high number of embedded links, with one heuristic specifically identifying a link to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains URLs that are likely part of a link farm or SEO manipulation scheme, potentially leading to malicious content or phishing pages.

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=alimentation+saine+%25C3%25A9quilibr%25C3%25A9e+pdf In PDF document text
    • http://files.christinemottram.com/uploads/1/3/2/6/132681824/5f3c26ff383.pdfIn PDF document text
    • http://perage.ihmphotography.co.uk/uploads/1/3/0/8/130814423/987580.pdfIn PDF document text
    • http://files.klbookexchange.com/uploads/1/3/1/1/131163932/5e4e293bdd9.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/1/0440/5841/1160/files/drastic_ds_emulator_apk_no_license.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5174/5442/files/anderson_pediatric_cardiology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2969/0525/files/r_cheat_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9389/4044/files/putugikokoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1237/4174/files/nedamubelabibejovomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4356/1376/files/sogenilusajupijasorezajek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5358/0439/files/10452507035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4947/6518/files/rewuzubakokaguvuteno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0428/1511/files/wosuziwojobifugamez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9853/0201/files/98310423854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6521/1035/files/740222792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8022/9791/files/52174396156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9899/5878/files/60003130952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3951/4006/files/sadivajuwes.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_off00007e50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E50 5584 bytes
SHA-256: fdc8fbdad2df27c74de59c355695e060b56fb025c64c2616f849f56d218a78c9
font_01_sfnt_off000090e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90E0 12176 bytes
SHA-256: fbf4a7cd719dd328020e7f5586d2ca6026687bbf3fdccc4f02f80eaa71f5a5f4

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