Malicious PDF — malware analysis report

Static analysis result for SHA-256 4507185da7cfc94c…

MALICIOUS

PDF

43.3 KB Created: 2020-08-22 05:21:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d22ebc456f1c2af6b182df54cb5da02a SHA-1: f846d19a77dc56e0aac089ef7c3044f2d541af0d SHA-256: 4507185da7cfc94cbecf2e43f71d7ecaeb906b7d3357ecba9d7fc93a1b27e4dc
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body and heuristics suggest a lure for free downloads, likely a phishing or malware distribution attempt. No scripts were extracted, but the presence of embedded links and the malicious redirector strongly indicate a malicious intent.

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=music+worldwide+free In PDF document text
    • http://files.blissfulbeautopia.com/uploads/1/3/1/4/131437924/f4172fec3.pdfIn PDF document text
    • http://luzude.columsands.com/uploads/1/3/1/3/131398272/1588115.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3562/1526/files/85720394376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0275/7281/files/57880254249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/84477954511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2193/3466/files/fewurote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2877/3021/files/bupumonexotikaxosijebopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5554/5497/files/47032057763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1701/9292/files/aseptic_non_touch_technique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7321/6411/files/tamutedizoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2823/3887/files/3999359615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3884/2779/files/95263043979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7839/3762/files/3595924688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8032/6051/files/a_level_past_papers_physics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0200/1570/files/jorisudisituvudire.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000057c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57C4 4600 bytes
SHA-256: 49819f0f7e6917a677b7f3ecba9d4dfd133b93411fa035a09e8c43f2fce8eada
font_01_sfnt_off00006787.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6787 12544 bytes
SHA-256: 6fa2f8a15e20154f2eb3381dea639c2e58bd2f4133145f60d146cb5b9d711cce
font_02_sfnt_off00009270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9270 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

Open this report in the interactive analyzer, or submit your own file for analysis.