Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d8067a344b063ed…

MALICIOUS

PDF

43.6 KB Created: 2020-08-19 13:40:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0b3e3bf0a00da54d6109d634fc7165f SHA-1: 36253e6e06b210b99b48135f028d38c8ca23a413 SHA-256: 3d8067a344b063ed705ade5d42bd517d54974281fb5012da3a8b667c9f34f8da
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 SEO link farm, identified by the heuristic PDF_SEO_LINK_FARM. The primary redirector URL is https://ttraff.com/pify?keyword=clinical+guidelines+for+asthma+exacerbation, which is also flagged as a malicious redirector. The document body, though partially corrupted, contains text related to clinical guidelines, likely serving as a lure. No scripts were extracted, but the presence of numerous links suggests an attempt to drive traffic to malicious or deceptive content.

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=clinical+guidelines+for+asthma+exacerbation In PDF document text
    • http://files.fabuliciousteaching.com/uploads/1/3/0/9/130969080/nisuzojikukij.pdfIn PDF document text
    • http://kixatik.libertyhighschoolorchestra.com/uploads/1/3/0/9/130969060/digobufalipab_wisirolewiwumo.pdfIn PDF document text
    • http://lesebi.koolamundo.com/uploads/1/3/2/8/132814232/4fe13.pdfIn PDF document text
    • http://xakapot.childrenfirst-inc.org/uploads/1/3/1/8/131872295/3093685.pdfIn PDF document text
    • http://files.makwawamalawi.com/uploads/1/3/2/7/132740860/zuder.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/1/0431/6823/5682/files/45676178795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9545/7946/files/67375816323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8673/2707/files/83636742428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3302/5960/files/pdf_splitter_mac_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1787/1255/files/fudusajelet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7683/7785/files/sagitafudowelagab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4124/3814/files/.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9541/7237/files/62355392878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3748/2405/files/derisunonasubelovokipuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2881/4746/files/98343186328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9847/0552/files/nenirulamalizerulowanugef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3001/8210/files/demexutosije.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_off00006817.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6817 5548 bytes
SHA-256: 1e721151ae7253c260c45bad76e27fb734851ae8881de4dca0e6a40fc18d3cda
font_01_sfnt_off00007abf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ABF 11960 bytes
SHA-256: 620df57cae407cd62423d13151e5a76254235e5741dff8b53fc8219bea4e7421

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