Malicious PDF — malware analysis report

Static analysis result for SHA-256 20ad7e92361db566…

MALICIOUS

PDF

45.1 KB Created: 2020-08-24 05:42:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 520cd24d59a539422822991dfab7e9d7 SHA-1: 1bd0aa9fa9c192f1f14f2fb98bfabbfc675fd6a8 SHA-256: 20ad7e92361db5660a0d2988682ffb08e487c8d478b0263d1528057d38bbe77d
194 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of numerous embedded links. One critical heuristic firing indicates a link to a known malicious redirector at 'ttraff.com'. Another heuristic identified a large PDF link farm, with many links pointing to Shopify domains, though the primary redirector is the most concerning IOC. The document body contains garbled text but includes the malicious redirector URL and several other URLs hosted on Shopify and other domains, suggesting a link-based attack. No scripts were extracted from this sample.

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=slayer+raining+blood+guitar+pdf In PDF document text
    • http://files.acenursingeducation.com/uploads/1/3/1/4/131406592/a7dcc.pdfIn PDF document text
    • http://files.lts3d.com/uploads/1/3/1/3/131398222/dadub.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/1/0435/9235/1907/files/todaxatozasimefegod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6230/5702/files/vakosedugisuref.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0911/2226/files/66521879771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1620/8036/files/gabuviwupaparebumesegosip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9822/7353/files/79327432303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8557/5845/files/mp4_to_frames.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9587/5989/files/15793662354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2988/8161/files/53817356729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2041/7181/files/yard_machine_lawn_mowers_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/dukitase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0731/9974/files/lesuvegutatakiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5580/7654/files/megivanitosut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2019/7789/files/povinitolosiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6517/0334/files/26339068798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/barupulalalodiz.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_off00006560.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6560 5376 bytes
SHA-256: 1734bde1e0679e5aa124acdd05f60fe3c987683cf85629e387c927c6b7271cd9
font_01_sfnt_off000077b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77B1 15444 bytes
SHA-256: d6781014a71981df00d6ac049066c60024d4b058e8e18be9856b1fc56dfb185d

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