Malicious PDF — malware analysis report

Static analysis result for SHA-256 c953609093187a42…

MALICIOUS

PDF

46.0 KB Created: 2020-08-25 06:25:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 217ffa26c5160f2e88642bd36f493129 SHA-1: a7a395c860859d5d5a91535dfe82eda6c96d8616 SHA-256: c953609093187a42d9a3e1ac2061d8429c6501833f123b6da939eeff0a08c960
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, which is indicative of a link farm designed for SEO manipulation or traffic redirection. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic, suggesting the primary intent is to drive traffic to malicious infrastructure.

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=free+tv+show++websites In PDF document text
    • http://files.talesfromawargameshed.com/uploads/1/3/2/3/132302759/9063730.pdfIn PDF document text
    • http://files.candacekoslen.com/uploads/1/3/1/1/131163867/8c67e4851b0cb.pdfIn PDF document text
    • http://gefotol.thelutherie.com/uploads/1/3/1/0/131069934/jexevadup.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/1/0429/8165/4679/files/interpretacion_del_electrocardiograma_normal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6802/3194/files/75291360615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3092/5727/files/caballo_de_troya_jj_benitez_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0513/2456/files/53012589928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/2656/6555/files/todutufovejekitafofov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7693/4042/files/55832758552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2060/5848/files/7822636059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8584587797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9212/2536/files/21173267033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6876/6873/files/46563064601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9735/6443/files/amikacina_plm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4071/0562/files/capteur_d_humidit_du_sol.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_off00007710.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7710 4780 bytes
SHA-256: 3dca32ce6dc201014d37a0af2efbb4486cea046b7bac0a9af570f349a0eca3f2
font_01_sfnt_off0000876c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x876C 10580 bytes
SHA-256: 340c25c8f3760bc020fe30b73bd54993241b2298a840e5359bb964dd315ada04

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