Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e9898f35ae7fca6…

MALICIOUS

PDF

45.3 KB Created: 2020-08-16 00:40:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d79d3a7f747fd81e06cfaef3f518b6f6 SHA-1: 5888ceea49c9cfdf4ec49c47ca8be57e7d6a6ee8 SHA-256: 7e9898f35ae7fca6df83cc5faedaa9bc10c7584d69b2dc3ba1298a181d97bf3c
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body also contains this redirector URL, suggesting an attempt to lure users into downloading further malicious files. The ML classifier also strongly indicated maliciousness.

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=general+guidelines+tradu%25C3%25A7%25C3%25A3o In PDF document text
    • http://files.professorwillis.com/uploads/1/3/0/9/130969819/3536095.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/1/0443/8137/2582/files/saber_yo_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3415/7991/files/22795745505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5824/7320/files/pag_ibig_acquired_assets_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6369/7817/files/lagu_lily_alan_walker_wapka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6929/0149/files/87862391538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gomejalubewetilukifij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4073/3341/files/guxexilatosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6529/5526/files/cassava_production_in_thailand.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3904/files/livodogelodada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4864/0418/files/32767711062.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_off00007295.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7295 5524 bytes
SHA-256: e396754b466a025e3a3ca5eb3340d9af85f02a3502abcdeee9b0c7a124cc338f
font_01_sfnt_off000084d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84D4 10020 bytes
SHA-256: 7042a1cc714ebb95adb4f8ee7d35447f9dacbe0460e87a6ea6adf3b84ca552f6

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