Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e9bbbf7b4c0af75…

MALICIOUS

PDF

66.2 KB Created: 2020-08-15 04:29:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cebdd32e339c87af279e3f08191d7ab8 SHA-1: 29fed00d9567a7a62ae09d6147b3633c1fb69dee SHA-256: 8e9bbbf7b4c0af75e9ae8df4096b5f7353091a59a80baf55410fd208a29c7697
194 Risk Score

Malware Insights

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

The PDF document contains embedded links that redirect to a malicious URL, identified as a redirector for SEO-based phishing. The document body, though heavily obfuscated, contains references to educational content and the malicious URL, suggesting a lure to trick users into clicking. The presence of numerous links to external PDFs, many hosted on Shopify, further supports the SEO-based link farm tactic.

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.com/pify?keyword=algebra+1+benchmark+test+4+answers In PDF document text
    • http://liful.yoansewingstudio.com/uploads/1/3/0/7/130739967/205e38.pdfIn PDF document text
    • http://mowip.formukcontractor.co.uk/uploads/1/3/0/8/130874679/1741213.pdfIn PDF document text
    • http://files.constantlyintouch.com/uploads/1/3/2/6/132682076/rinob_muxebifapafoxal.pdfIn PDF document text
    • http://files.shaunandken.com/uploads/1/3/0/7/130740049/jasog.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9215/5293/files/xakanolaxulotas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8844/9437/files/innisfree_mask_sheet_manfaat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5782/3390/files/ponajaxuzifavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3374/7878/files/44563072439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65817182127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0436/1895/files/jatosuzivojiriwezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8397/2256/files/44022908722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2943/6315/files/xomabuzedufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8222/5566/files/agricola_family_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2885/6487/files/62298414385.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000aa63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA63 2000 bytes
SHA-256: d49f352a89d015d2b1d587c6167ab9eeaad49ed1832338bfa62728403dab3e63
font_01_sfnt_off0000b3d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3D0 5268 bytes
SHA-256: 6949d3daf650c20b8a1151be20be7d224044ec02265c885eb76875ffa7d1e27a
font_02_sfnt_off0000c595.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC595 11964 bytes
SHA-256: 2fb5e25530db6e969f4c5c15e07dfd8d2a0c2f9f5e22bb13cc345654b626d50f
font_03_sfnt_off0000ed46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED46 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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