Malicious PDF — malware analysis report

Static analysis result for SHA-256 b203be43e8ee32e6…

MALICIOUS

PDF

47.6 KB Created: 2020-08-06 03:22:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c2e119237194f404e5de5f31ba7c9c9c SHA-1: 37579633af1a00f85ee84308458314fff4da2ea9 SHA-256: b203be43e8ee32e6d7ce11369ed460751296f232113b98cb4e70fbe0907abf37
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary malicious URL, `https://ttraff.com/pify?keyword=cascarilla+de+arroz+como+sustrato+pdf`, is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body appears to be largely obfuscated or contains metadata rather than user-facing content, but the presence of numerous links and the malicious redirector strongly suggest a phishing or SEO manipulation attack.

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=cascarilla+de+arroz+como+sustrato+pdf In PDF document text
    • http://files.navp.co.uk/uploads/1/3/0/9/130968956/kojiva_sapegitoxani.pdfIn PDF document text
    • http://files.lauraheathstout.com/uploads/1/3/2/6/132695575/ab266ae9.pdfIn PDF document text
    • http://files.espanishblues.com/uploads/1/3/0/7/130775592/b63c53f230537.pdfIn PDF document text
    • http://files.fhpsc.ca/uploads/1/3/1/4/131454190/sikifunem.pdfIn PDF document text
    • http://files.firedglass.org/uploads/1/3/2/6/132683017/3727699.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/1/0437/3577/7445/files/kifiwalapadavov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/sumakatafanojafigedikuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9212/3560/files/le_fond_diffus_cosmologique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9356/6364/files/54953371422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1808/2709/files/4038959231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4556/0225/files/61367381163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7738/6918/files/59906108680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1868/9432/files/84323369439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2767/7852/files/sawuxazibobivekaruje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8402/9854/files/89326724386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1838/6588/files/wiwazokukipina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/nuwajosowaleku.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 8

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_off000078f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78F0 5256 bytes
SHA-256: 25e846bd267b59f338751e59d6300a7e2a16c98ad7a9ebc5b5f21948036c46ba
font_01_sfnt_off00008abb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ABB 11320 bytes
SHA-256: 101c6b441b7d306c220fdd9a5701751550d9c6d49325431fc794cee1d75a28c0

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