Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dff5daacc00b5a8…

MALICIOUS

PDF

58.3 KB Created: 2020-08-02 17:24:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 23fb7f8bbe15169db1a7393e5a70b3d1 SHA-1: de0594d66fb7b25cda96ccf0d52378001f916229 SHA-256: 4dff5daacc00b5a80b30084d9c66242537fd6e632e2be9f618434c23c5e97c9d
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, but one critical link redirects to a known malicious domain (ttraff.cc). The ML classifier strongly flagged this PDF as malicious. The presence of a malicious redirector URL suggests the document is part of a phishing or scam campaign, likely aiming to direct users to malicious content or further phishing pages.

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/pify?keyword=osrs+air+battlestaff In PDF document text
    • http://files.yuvelsoria.com/uploads/1/3/2/6/132696060/1563196.pdfIn PDF document text
    • http://files.frenchiesdumonde.org/uploads/1/3/0/7/130776416/napitogaduvojipewi.pdfIn PDF document text
    • http://files.shawlegalservices.com/uploads/1/3/2/7/132740260/kumabafigebixo.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/1/0429/5501/4297/files/96846209715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2041/1289/files/wevovaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8166/2628/files/luxidefolupaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7845/1351/files/jaxoxugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7963/9967/files/kazexekowigifutopetazuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8411/8171/files/rilojiramumatemadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sejil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/night_broken_patricia_briggs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3156/0354/files/77157205302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0587/8170/files/japam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9804/4568/files/rakifus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9749/6483/files/97901260475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7515/7670/files/zoruji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1374/1472/files/vafapizazawiripu.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_off0000a747.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA747 4928 bytes
SHA-256: d5da874a960d81cc984d79a9dd303f3a268bd6e24bbf5b783a88a04aee96c7ab
font_01_sfnt_off0000b813.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB813 10672 bytes
SHA-256: 413ac07151ae6b467d51d3b3c579df8ff62956df6b55410fa27b410be9f3421f

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