Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eb8d5ba9f10b65d…

MALICIOUS

PDF

39.7 KB Created: 2020-08-26 21:38:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 667120f3dbb1c3ab94f9fb12f66a9412 SHA-1: b7a008680f0971675cf25ec5bb0ddc817c0c1e56 SHA-256: 8eb8d5ba9f10b65d6498b2e4925a635095852c028365fcdd5bf260379e76eea2
202 Risk Score

Malware Insights

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

The PDF contains a prominent link that redirects to malicious infrastructure, disguised as a 'Fall risk assessment tool'. The document body and heuristics indicate a link farm strategy, with multiple embedded links pointing to various PDF files, likely to manipulate search engine results or host further malicious content. The presence of a 'download button' heuristic further supports the lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.me/pify?keyword=fall+risk+assessment+tool+canada In PDF document text
    • http://wugapimis.decoratorssale.co.uk/uploads/1/3/2/7/132740264/cb42ff.pdfIn PDF document text
    • http://files.alltechclimate.ca/uploads/1/3/1/8/131871994/3683960.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/1/0438/5813/3152/files/sumifakepoxutonezulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9755/5108/files/xokaduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9092/8026/files/86989932137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6598/9530/files/xitijerex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7408/5279/files/adobe_creator_mod_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0655/8359/files/ryzen_ram_overclocking_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8393/7432/files/crisis_del_canal_de_suez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6511/4775/files/lebefom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0352/5794/files/zetazifoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4235/6904/files/suburban_rv_furnace_troubleshooting.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_off00005d5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D5E 5104 bytes
SHA-256: 6b0136264dcfec286c521f01814bcb716dee7621d2261f023679224a21be21f3
font_01_sfnt_off00006e9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E9D 10404 bytes
SHA-256: 3ccfa599f3cea1910a6ae6381522ba65e682b5f90f5b139daabaa092b5c10bf0

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