Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5d7a9dc8b8b2f33…

MALICIOUS

PDF

43.3 KB Created: 2020-08-05 02:27:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3d0d9239a8b499286e8c637e2b8e9a58 SHA-1: 9ea6f1a2ac5fee3e28d746332f46ff0ab3955cb4 SHA-256: f5d7a9dc8b8b2f332ffc9e5108d41c8e9c4190d5a330bdd5e60b9d113422819a
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, disguised as a ketogenic diet PDF, redirects to a malicious URL on ttraff.com. This indicates a social engineering attack aimed at driving traffic to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector is a strong indicator of 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=ketogenic+diet+food+list+pdf In PDF document text
    • http://files.carinapaulsson.com/uploads/1/3/0/8/130874378/viluzupubole-rorefup-pesisat.pdfIn PDF document text
    • http://files.brokedeckcreations.com/uploads/1/3/1/4/131454262/xomazopoxa.pdfIn PDF document text
    • http://files.nympa.com/uploads/1/3/1/8/131871433/c8d033a6ad.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/1/0435/6331/9445/files/busemujosetus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0671/4268/files/sims_3_hairstyles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7490/2430/files/convert_to_fillable_form_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3513/1036/files/neurological_examination_in_dogs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8059/7152/files/xuzuditetavusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0131/4454/files/33405581820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8380/9439/files/gajamifufonefoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8579/1393/files/24828931619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4526/5312/files/puzisal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9604/6752/files/16694338074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5136/0164/files/8039127192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0591/9903/files/addition_1_10_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8286/5058/files/3810433517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4372/4186/files/90573917668.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 2

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_off00006d21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D21 4984 bytes
SHA-256: 5b3ede4811103f62e80ba1585ed7c0045258e5f22088f1a26bab6c35dc3ebf19
font_01_sfnt_off00007e45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E45 9908 bytes
SHA-256: f2d225ff5acc36ed5b28a7ed35e7395126d4c099051e80320c4c16f97a8e174d

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