Malicious PDF — malware analysis report

Static analysis result for SHA-256 17f872084049dd0d…

MALICIOUS

PDF

52.5 KB Created: 2020-08-20 13:30:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 323378b377ebdf3345286ad26414a6f9 SHA-1: e19fff205d58cea304ce9fc684d2bc1592320d93 SHA-256: 17f872084049dd0d9b77fdbc2bc1cf94465a1dd7e27197e6c58ae083ba36f5b0
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) which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL, suggesting an attempt to trick users into clicking it. The presence of many links to external PDFs, some hosted on Shopify, indicates a link farm or SEO poisoning tactic to distribute malicious content.

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=saccular+vs+fusiform+aneurysm+radiology In PDF document text
    • http://files.kunzangincense.com/uploads/1/3/0/9/130969390/3538950.pdfIn PDF document text
    • http://files.productofthebay.net/uploads/1/3/1/6/131606011/tukozepevodimu-naxip-rarem-gakonajiwudew.pdfIn PDF document text
    • http://gajigoka.xmastrees.org.uk/uploads/1/3/2/7/132740478/xerebezezara-sobimumaxawib-ximerakodirezef-zapoj.pdfIn PDF document text
    • http://tedigasi.rigonibakery.com/uploads/1/3/1/3/131380212/4866978.pdfIn PDF document text
    • http://gulaxoj.sanfranciscofamilytherapy.com/uploads/1/3/0/7/130776138/0945e13.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/1/0428/8974/0441/files/97490647397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/62330679950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1272/6677/files/10th_maths_guide_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0441/9478/files/81632541721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9717/7768/files/12566690511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6924/3553/files/magetiwizarevajelaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0794/2549/files/83355191244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4659/8816/files/el_camino_del_artista.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3865/3081/files/gezijoxidepiwesijovij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9749/8535/files/desurefipiburibosuwilulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7007/6566/files/74020623016.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_off00008d8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D8A 5604 bytes
SHA-256: 56b2505b41ab2fef3ebd8d04ebcbd3045006ed5c951dd71f304e6a7f2efab44b
font_01_sfnt_off0000a086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA086 10540 bytes
SHA-256: b705d39d4829e0a5c3d313d271b68e02dad7aac887c15ec0ad24a707c11027b0

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