Malicious PDF — malware analysis report

Static analysis result for SHA-256 8595cf9fb73ad171…

MALICIOUS

PDF

43.3 KB Created: 2020-08-23 09:54:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 47a4e30f1cf4c4e5eb8719dfb90b0265 SHA-1: cddcab5185e6650b3399ed2ec0b37cc32a6a2635 SHA-256: 8595cf9fb73ad171217bdaff6baab69a14a84326dd836986f7db8dd90f65bb3a
194 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to a redirector known to host malicious content. The document body and embedded links suggest a lure related to 'nfl schedule week 3 pdf', likely intended to trick users into downloading further malicious content or visiting phishing sites. The presence of a link farm and redirector indicates a strong intent to distribute malicious payloads or conduct phishing operations.

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=nfl+schedule+week+3+pdf In PDF document text
    • http://files.beritgehrke.com/uploads/1/3/0/7/130775393/a2f309.pdfIn PDF document text
    • http://files.romainewashington.com/uploads/1/3/1/8/131857193/ropodefi.pdfIn PDF document text
    • http://files.homespirit.shop/uploads/1/3/1/4/131482916/puwulomu.pdfIn PDF document text
    • http://files.thomasemyers.com/uploads/1/3/0/7/130738971/2007eea75dbbe9.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/1/0432/1430/7496/files/75596714460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2399/6840/files/gogamepurosopujeni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3365/5446/files/jipisojamamuxuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gabagijujusudizal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2897/1681/files/saxexof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7383/1073/files/voltage_regulation_of_transformer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3097/9495/files/33308879973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/buvit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8955/9705/files/business_model_generation_wiley.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/43905326720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3350/9535/files/diccionario_de_teologia_biblica_bauer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0564/8807/files/28675978913.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C0 5228 bytes
SHA-256: 9dd17b67a3dc7b7b6c02350391a3bad12956c1a071ed3be319680a5d22960740
font_01_sfnt_off000074a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74A1 14200 bytes
SHA-256: 6229c6f37df761cb37aee98b91e7ec57b28297794bf86349d3011af919b174eb