Malicious PDF — malware analysis report

Static analysis result for SHA-256 de858a1129dd3db7…

MALICIOUS

PDF

42.0 KB Created: 2020-08-07 19:59:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d2b4eee6bbfc80f229b884181da8fc43 SHA-1: 5b4b2db76924b3cc9202cd3a3c9bcffa12506f60 SHA-256: de858a1129dd3db70f1511bb31da8a21b4dcf661a072cbe475eb5bbcfff1abd4
194 Risk Score

Malware Insights

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

The PDF document was flagged by a machine learning classifier as malicious. It contains a large number of embedded links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body itself is heavily obfuscated but appears to contain the same redirector URL and numerous other URLs hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The primary malicious intent appears to be redirecting users to potentially harmful 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=l+agriculture+biologique+au+maroc+pdf In PDF document text
    • http://files.wordsongs.com/uploads/1/3/1/4/131406390/89009c8cacfab9.pdfIn PDF document text
    • http://files.orangehistory.org/uploads/1/3/1/3/131380998/6a7d3c8e67aa6.pdfIn PDF document text
    • http://files.nextpathproperties.com/uploads/1/3/0/7/130739247/7400856.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/1/0431/7813/1611/files/54858362030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7352/8213/files/21925292199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5476/8032/files/wexatewanewakos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3089/6026/files/produccion_agropecuaria_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9280/3744/files/gupatopopune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8734/0454/files/beliro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5744/6038/files/73188089766.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5122/9089/files/tupok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0697/6422/files/zovusabezeloxip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1315/2673/files/98512094864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6418/8312/files/92869206381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6935/7728/files/fetudiwigugilizedo.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_off00006128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6128 5504 bytes
SHA-256: fc67e1fbdbce415347d8ee6da6bbdb239c50a9cfaaf81d38eb097175b40d1189
font_01_sfnt_off000073c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73C3 12008 bytes
SHA-256: a95af679ff5b40d4b505507dce278d2b6db64b18518ff18b316b93e1fc7ceff0

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