Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cc6ceaba43acd51…

MALICIOUS

PDF

39.6 KB Created: 2020-08-03 20:24:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1c9856f3458ea0e53d110555b156a267 SHA-1: 36d47a1bdd310ef8722f56defcff9741be6eb0c8 SHA-256: 5cc6ceaba43acd5111aa2d81585e2c3473d77ac1fe7c964a83633ccc3794cc79
202 Risk Score

Malware Insights

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

This PDF document contains a lure for a free download, which redirects to the malicious infrastructure at ttraff.com. The document also hosts a large number of external PDF links, many pointing to Shopify domains, likely as part of an SEO link farm. The ML classifier strongly indicated maliciousness, and the presence of redirector links confirms a malicious intent to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=gu%25C3%25ADa+completa+de+calistenia+y+street+workout+pdf+gratis In PDF document text
    • http://files.nachnook.com/uploads/1/3/0/7/130776481/sabuwume.pdfIn PDF document text
    • http://files.mrsbockiusclass.com/uploads/1/3/0/7/130739119/limixuge-kuvipujixube-takiwided-kadafisuwipon.pdfIn PDF document text
    • http://files.alohaacaibowls.com/uploads/1/3/1/4/131483281/7126993.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/1/0428/3128/2335/files/17097300976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/29504753794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4896/7061/files/96253926350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sozolomunegodufedawugiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jujirufevob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2581/5959/files/28990295671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3164/9689/files/46468047643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/6024950969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9159/1317/files/minivipoxiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7878/6965/files/titixabik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4578/9606/files/60982685513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9932/3558/files/rugoretekijipigukiwajipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3849/8206/files/34440201470.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 4

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_off000057c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57C4 5820 bytes
SHA-256: 89c1d3c6dcde34a129e46a5199a5e9d3af1eb2d35d0609b2fba254d2c10f0877
font_01_sfnt_off00006ba9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BA9 10364 bytes
SHA-256: 920b7855d6174b328873a74a95712269ed224f21eb177e5bd976d8499663c45d

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