Malicious PDF — malware analysis report

Static analysis result for SHA-256 a572a26572dce664…

MALICIOUS

PDF

44.2 KB Created: 2020-08-06 14:51:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b91b0c3183513100c84f4df558f260f0 SHA-1: 4f9682b1f9548bfbf61b7053a50b94486552c094 SHA-256: a572a26572dce664335db7ac2d8dfb3f270ff64bdd2b0b46fabc0b03546217e2
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, includes the text 'Anatomy of retina pdf' and the URL 'https://ttraff.com/pify?keyword=anatomy+of+retina+pdf', suggesting a lure to a malicious site. The presence of a link farm heuristic further indicates a malicious intent to redirect users. 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=anatomy+of+retina+pdf In PDF document text
    • http://kagul.webuyhousesingta.com/uploads/1/3/2/6/132681342/xifaporokutuxu_juzef_zusawom.pdfIn PDF document text
    • http://files.catholiclaity.us/uploads/1/3/2/7/132740767/faec58279c28c5.pdfIn PDF document text
    • http://files.roserunpresbyterian.org/uploads/1/3/1/3/131398350/886915.pdfIn PDF document text
    • http://files.greyallison.com/uploads/1/3/0/9/130969075/3b226a7d68387.pdfIn PDF document text
    • http://files.dan-ebert.com/uploads/1/3/0/7/130739340/wagabif.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/1/0430/8857/6661/files/mva_form_dl_202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3179/6632/files/72513381819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3975/9263/files/sunetirelulikelomawoletim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0089/7434/files/57266168384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6461/9171/files/canon_poweshot_s2_is.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kirojaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/xifojodenakij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0396/9689/files/zunolozisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5351/3880/files/sonorevofelolewunoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5177/8202/files/wuzitiluzan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7439/4014/files/65594502260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12509012650.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_off00006534.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6534 5068 bytes
SHA-256: 7d8ac10e806a24d080b0652bf9878804e8084bfb31386a74ec62b2e3e8783d67
font_01_sfnt_off0000766c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x766C 14620 bytes
SHA-256: 8ba0a07d307b90702faa18934598d741c5acb3bcbaaca69d439f118a79ccbce8

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