Malicious PDF — malware analysis report

Static analysis result for SHA-256 140641f8b9782c36…

MALICIOUS

PDF

38.4 KB Created: 2020-08-25 13:55:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: edab04bff4ea6648e35a3df73cd8533e SHA-1: a8ed08fd2e41c99a170a7c74140b2a1519fd8c37 SHA-256: 140641f8b9782c36e5fb192bd9d3b00be6927da0b3e5f788fb4cf0b28b0fa75d
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that points to a redirector designed to lure users with a 'child protection online reporting' theme. This redirector then leads to other links, including one hosted on Shopify which is flagged as a link farm, suggesting a phishing or scam 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=child+protection+online+reporting+qld In PDF document text
    • http://xakilola.westsoundartandmusic.org/uploads/1/3/1/4/131407408/3b1b4846a3c66b.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/1/0429/7680/5018/files/bojangles_nutrition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84770620138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4136/6951/files/41407933520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2358/0830/files/saruw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4818/0634/files/esquema_corporal_segun_autores.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/4223/3509/files/dipepabevakewininaluvida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9825/8073/files/include_html_template_in_php.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7318/4678/files/93279087001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78578063821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7755/8681/files/terakedogapurodevagiraxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/9942/3647/files/protect_all_sheets_in_excel_using_vba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2263/6440/files/gastrulacion_embriologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2149/1621/files/fazabibovamakiful.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 1

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_off00005a1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A1F 4976 bytes
SHA-256: 24f597315a2fd3ac6693d6684475329e3fa2ca80eb05fc06c9bb33e90198beb5
font_01_sfnt_off00006afa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AFA 9964 bytes
SHA-256: f4491d1c3e610d7fc76c50bac9f03c03f0f6ce4e700bbeffd4172471894ce88e

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