Malicious PDF — malware analysis report

Static analysis result for SHA-256 ced5cd43f82935be…

MALICIOUS

PDF

37.3 KB Created: 2020-08-17 16:53:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dbf20c26394d9b2e0740262295932175 SHA-1: d67cc563f68421ddc82a54388b930496645c1dad SHA-256: ced5cd43f82935be96c2d8a42147cea1b4105571328ceae658e148bf4fa38717
194 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs pointing to external resources, many hosted on Shopify. The primary malicious URL identified is https://ttraff.com/pify?keyword=blacklight+retribution+pc+full, which is likely used to direct users to a malicious site. The document body, though heavily obfuscated, contains this URL and other embedded links.

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=blacklight+retribution+pc+full In PDF document text
    • http://xatas.gitaarlesdamwoude.nl/uploads/1/3/1/6/131606490/a611d04b.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/1/0432/9019/8180/files/vimipenewuxixejofobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0223/2983/files/wekuxufanigupes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99324429390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8267/0485/files/81556280301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2865/9870/files/bojelebazizofopitorokazek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/5431/3122/files/barack_obama_dreams_from_my_father_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3152232763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9465/3594/files/gw2_firebrand_build.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3427/0117/files/gupewowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0670/5311/files/98623232446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8747/0485/files/54999140592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6477/5076/files/public_speaking_tips_and_tricks.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_off0000526f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x526F 5352 bytes
SHA-256: 6cdffb87b3b80aa95b962c87252969c84578e4064bf1a4beebb00cdd034806da
font_01_sfnt_off0000649f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x649F 10616 bytes
SHA-256: 2fd47a647787520a66d532b88cec6845678ccae73a544979a289fd9298f86787

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