Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8c4f10afea1f576…

MALICIOUS

PDF

73.3 KB Created: 2020-07-31 08:43:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4131e849575044f8a70664ef68e3fa45 SHA-1: e96602e9b9ea2b26afb174cee3359907f284cc01 SHA-256: f8c4f10afea1f576eb01a94a6cedf7d2de860231e469abdcd58d6d95147dd5c9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to be a lure for a book title, suggesting a phishing or scam attempt. The presence of a malicious redirector URL indicates an attempt to lead the user to a harmful site.

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=princess+diaries+book+1+pdf In PDF document text
    • http://files.crafted-by-yaime.com/uploads/1/3/0/8/130874148/gavunegusolix.pdfIn PDF document text
    • http://files.artronshop.com/uploads/1/3/0/8/130814121/6732610.pdfIn PDF document text
    • http://files.albemarleallotments.org.uk/uploads/1/3/1/6/131606819/2b7c9.pdfIn PDF document text
    • http://files.pinalashess.shop/uploads/1/3/0/7/130775750/jevamuxepafo.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/1/0435/5942/0063/files/sajetulukagidiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5661/0979/files/91886733425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/xojevibufukavatobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5373/6348/files/43594195742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9748/9561/files/viviroxutog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/kixazonol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0500/8293/files/94416162211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2520/2325/files/jabezitejetajuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3222/2615/files/xibofifavuxolatovanelumaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4754/1146/files/85961478662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9177/1046/files/dasirat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0760/5923/files/pirolelonisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8580/7268/files/43878590663.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_off0000e390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE390 5080 bytes
SHA-256: e02d6aa6dec606c3e0e1792bc567b11002ee72171a65986348698851991edf41
font_01_sfnt_off0000f4ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4CA 10156 bytes
SHA-256: d599ae1820bfe9555d414e1589024edea573656884518277dd711ace26e4af80

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