Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae8d42dd0d78c2b7…

MALICIOUS

PDF

40.0 KB Created: 2020-08-12 22:15:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: af2a10849c92b813dcd141e25e5355d0 SHA-1: 6b4a368898d0105de1dac8c2684c3dc943de7e07 SHA-256: ae8d42dd0d78c2b7d6eafbd446cf6a0ef1cb62b5a78efb28e27624706315480d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external link farm, with many links pointing to Shopify domains, likely to improve SEO for malicious content. One critical heuristic indicates a PDF link to a known malicious redirector, ttraff.cc, which is also present in the document body. This suggests the document's primary purpose is to redirect users to malicious infrastructure, disguised as a fitness worksheet.

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/wb?keyword=fitness%20goal%20setting%20worksheet In PDF document text
    • http://files.wardlawandbrown.com/uploads/1/3/0/7/130775221/169494.pdfIn PDF document text
    • http://nuxozoda.vanjavujicic.com/uploads/1/3/2/8/132814930/zozawupeb-rasofebada.pdfIn PDF document text
    • http://files.lucerneinternationalfilmfestival.com/uploads/1/3/2/7/132740264/64c56462.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/1/0437/3122/2682/files/mulokulapub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0944/0933/files/anny_duperey_le_voile_noir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6604/7129/files/pogomijid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89965927340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9183/5546/files/lepizedonikiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0974/4789/files/47077393826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7395/4204/files/8135811560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tufajotojitumawudawemir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5253/1869/files/puvuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3250/1656/files/nuwageluk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8389/6734/files/jitufutajubasogasitegoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3182/1473/files/6085171921.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 3

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_off00005fbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FBC 5060 bytes
SHA-256: 3f87578a7a8bc16516f7748a9fa8e4cf907b71b6f1d5dbad493f49abc82c0c3a
font_01_sfnt_off000070f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70F9 10036 bytes
SHA-256: 25f0109bc3fa00a7f8c7f2440fb0bdb77191a6bcb4f995e923eb4d65a7d0337a

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