Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8bd9f66de5f2900…

MALICIOUS

PDF

92.5 KB Created: 2020-07-31 22:04:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce5842c86d96d058a56f242bfb465e5b SHA-1: bcec31b84ac687ca872993dbcdd4b0d40f5e9c3a SHA-256: f8bd9f66de5f29009e066f1d70b12091f2c48fa6dc34d17202da8c1cc91be6f6
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, with a critical finding of PDF_MALICIOUS_REDIRECTOR_LINK pointing to 'https://ttraff.com/pify?keyword=big+papi+net+worth'. This URL is likely used to redirect users to a phishing page or download further malicious content. The ML classifier also strongly flagged this PDF as malicious.

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=big+papi+net+worth In PDF document text
    • http://files.katebenderart.com/uploads/1/3/0/7/130740571/eda26140.pdfIn PDF document text
    • http://files.jetvideoonline.com/uploads/1/3/2/6/132682327/jomavedebuninudatito.pdfIn PDF document text
    • http://files.montessori-mag.org/uploads/1/3/0/9/130969917/1b8b9446f63.pdfIn PDF document text
    • http://files.cplcp.org.uk/uploads/1/3/1/4/131438308/kibazapidakemex.pdfIn PDF document text
    • http://files.brucesbreads.com/uploads/1/3/1/4/131407802/6986769.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/1/0435/6079/6318/files/94041456830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6246/8516/files/16971092982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9362/2935/files/90564042066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/linod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2465/3224/files/79605724459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9938/1146/files/91983885176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9246/7109/files/72447084118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasebiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8004/7010/files/94035875677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3863/0300/files/54972270021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9242/7430/files/jegagasafu.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_off00012e43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E43 5012 bytes
SHA-256: 24f883a80b5ed71be016dcae7fd929963c0535ea6f78c43bc01d842bc4fa50de
font_01_sfnt_off00013f64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F64 10872 bytes
SHA-256: 3c6a49280697ae731986a39a392765c9034d0d11da83976bdf102cee63709417

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