Malicious PDF — malware analysis report

Static analysis result for SHA-256 53ec94d523a1ee0c…

MALICIOUS

PDF

47.5 KB Created: 2020-08-20 23:41:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 78afa031fc280bb01b2c6cfa954b9bf5 SHA-1: 5579a37bdd795ad58b58d26b70d7ddf815e4db31 SHA-256: 53ec94d523a1ee0cd3e375f38e3285d0a8ddfc6f0300a88b5e3981312f4f9adf
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs. The primary URL, https://ttraff.com/pify?keyword=good+attention+grabbers+for+informative+speeches, is identified as a malicious redirector. This suggests the document is part of a link farm or SEO poisoning campaign designed to redirect users to malicious sites. No scripts were extracted from this sample.

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=good+attention+grabbers+for+informative+speeches In PDF document text
    • http://files.anchoredinrowayton.com/uploads/1/3/2/7/132740949/gidefejanosolo_damevimoruzojok.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/1/0432/7732/0352/files/7075133276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5184/3733/files/nopavigipabiwiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/81179118822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6626/9597/files/sekajopopobidas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8564/3420/files/bakim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89120948070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/16436936895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3772/6622/files/cognitive_behavioural_therapy_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3354/9205/files/building_construction_and_maintenance_engineering_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0463/2992/files/citta_20_mg_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/53967331617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/zopapitavuwuxukujumez.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 2

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_off00007a69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A69 5768 bytes
SHA-256: f73e2a5823c0f9c5a79bf12d8817cad1e0105ec70557f43d9e90eedbd18f4a66
font_01_sfnt_off00008df1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF1 10476 bytes
SHA-256: d42dcb305f70be051c324f4efead747567277be86fbd6ea1688af69ba7acdaa4

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