Malicious PDF — malware analysis report

Static analysis result for SHA-256 1958b27a7a0b20f5…

MALICIOUS

PDF

41.5 KB Created: 2020-08-17 13:16:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4dfa48dc41c24a6fcbea5a1fa4d846ab SHA-1: 4fed981e69ce78bab61364ed9a57d336616aa5bd SHA-256: 1958b27a7a0b20f5808fb7e4a03aff7813750bb4640dc3685f68447dd55aad9a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, contains the primary redirector URL and several benign-looking Shopify links, suggesting a lure to download further content. The ML classifier strongly indicated maliciousness, supporting the assessment of a phishing or malware distribution attempt.

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=folklore+the+affliction+character+sheets In PDF document text
    • http://sutixas.amomisborn.com/uploads/1/3/1/8/131857054/9138026.pdfIn PDF document text
    • http://files.chefdavidbmorrison.com/uploads/1/3/1/3/131398224/5779367.pdfIn PDF document text
    • http://files.glotanningandhair.com/uploads/1/3/0/8/130874075/3465056.pdfIn PDF document text
    • http://kenetadu.mcjpgs.com/uploads/1/3/0/8/130873791/7324029.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/1/0432/0477/2000/files/53481901873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4893/4295/files/92240135810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9928/1821/files/14704645582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/snake_mania_game_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0396/9689/files/jurnal_bioplastik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/25114451610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5335/9005/files/gumulil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7554/1919/files/hiv_aids_signs_and_symptoms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6103/2598/files/rigexaxelos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18608783112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7327/4018/files/12555053714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/duveve.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
🗂 Part of campaign: chefdavidbmorrison.com 6 samples

Related samples 6

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005bfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BFB 4988 bytes
SHA-256: bac840a83228ad68dc505440f59e8d57c68dc1de8f2c82faa488f591c67e444b
font_01_sfnt_off00006ce1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE1 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off0000756e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x756E 10368 bytes
SHA-256: 27e0686e82502a2845cf6f02e5c765ff9473c61f0a20a1ec703ec3e3156bffbb

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