Malicious PDF — malware analysis report

Static analysis result for SHA-256 9301938fca8f48da…

MALICIOUS

PDF

44.4 KB Created: 2020-07-30 15:10:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae0fa2e09f215a9fbd8b06a1bf016b8f SHA-1: e3e2429466f23a5995750d12678f2cc847a38ea9 SHA-256: 9301938fca8f48da9d183e46afab8fbcee4d73ca1c36d489ea38be088426a756
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.ru/pify?keyword=statistical+demography+and+forecasting+pdf', points to known malicious redirector infrastructure. The presence of numerous links suggests an attempt to manipulate search engine results or to distribute additional malicious 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=statistical+demography+and+forecasting+pdf In PDF document text
    • http://files.rickkeyesmusiccaravan.com/uploads/1/3/0/8/130813732/reziwepujemoxirojem.pdfIn PDF document text
    • http://files.mastersveterinaryservice.com/uploads/1/3/1/4/131437669/rezodogiwove-junadorexawedez.pdfIn PDF document text
    • http://files.athomedogeuthanasia.com/uploads/1/3/0/8/130815115/8236f5400166a.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/1/0431/2373/6725/files/vewemazovufezonomovesamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8506/1541/files/xuwulimapid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6552/3870/files/12600412880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3248/5793/files/dabozufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0595/8565/files/64762232790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0436/2906/files/530429926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4624/7332/files/68742097456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3767/7989/files/nerokexew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3577/1558/files/razoxusitafibumed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3235/4727/files/8715261824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2149/1621/files/60165781179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/xelunuribotipogimot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7631/2471/files/91963591082.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 6

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_off00006f47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F47 5564 bytes
SHA-256: 06b89ce2218e1d8c09ec44710554856bfed52af49d9cc27475689e6f09404944
font_01_sfnt_off000081ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81FF 10124 bytes
SHA-256: 837483826d06fa49fec0008b36c1a2b5222273912a71d219c1319d326f2ef50e

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