Malicious PDF — malware analysis report

Static analysis result for SHA-256 748e2d209876ed61…

MALICIOUS

PDF

38.9 KB Created: 2020-08-08 17:17:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b1d212fe6be4f12f441691f5787f84b6 SHA-1: 8bdca0df8267954445252599deb8c97912e32370 SHA-256: 748e2d209876ed61963686c4e041607edfc2629b8c4adee31161e2c28b6c80ec
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate PDF downloads, but they redirect to a malicious URL (https://ttraff.cc/wb?keyword=conventional%20and%20reflective%20morality%20pdf). This indicates a phishing or scam attempt, likely using a link farm to improve search engine visibility for the lure. The ML classifier strongly supports the malicious verdict.

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/wb?keyword=conventional%20and%20reflective%20morality%20pdf In PDF document text
    • http://files.zoomintojune.com/uploads/1/3/0/8/130873945/272709.pdfIn PDF document text
    • http://files.mensshedindooroopilly.com/uploads/1/3/1/8/131856827/narawaru_wumir_fonubonuxa.pdfIn PDF document text
    • http://files.tinkscience.com/uploads/1/3/2/7/132740593/599dfda.pdfIn PDF document text
    • http://files.melindacochraneauthor.com/uploads/1/3/0/8/130874683/8ff08058f.pdfIn PDF document text
    • http://files.belovedcommunitysp.org/uploads/1/3/1/6/131606256/jusulipaterij-wiluzazivu.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/1/0433/5144/1563/files/66932502782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7931/1268/files/xumakupobefaxejuvuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3866/3079/files/matiwijesizovenetivosavex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/74534101964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4398/6327/files/18659312556.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3033/0016/files/kulezoreneguvevuredavod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7508/3171/files/glencoe_advanced_mathematical_concepts_online_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9613/6097/files/suvibulokuvutap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8815/0690/files/jemozurugifedup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2315/4847/files/96343353638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7781/1867/files/lowes_festus_mo.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 8

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_off00005bd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD9 5188 bytes
SHA-256: eaa8dcba87c18786a0640ba1691a8b2468fa8b9ba011e875a0b397adf7b3d8a7
font_01_sfnt_off00006d7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D7C 9680 bytes
SHA-256: 53df208ff625fcf6cf6b25da771fd096b44ff0d0ec7c0c5fa29b97dfe8691ef2

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