Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9b6d6e16fc30227…

MALICIOUS

PDF

87.0 KB Created: 2020-08-03 18:46:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9c66b547d43efea27cf5414537fb7c71 SHA-1: 15bf8e201c80ece68c8fa99bb8f51a848982e1b1 SHA-256: e9b6d6e16fc302274c6f617e5cb62a6d609bbf0d22873f6fa32c4f7fceb75390
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=libro+callese+y+venda+pdf'. Additionally, it exhibits a PDF link farm heuristic, indicating a large number of external links, with the first being 'https://cdn.shopify.com/s/files/1/0427/4647/8759/files/33564288221.pdf'. The ML classifier also flagged this PDF with high confidence. These indicators suggest the document is designed to lure users to malicious sites.

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.ru/pify?keyword=libro+callese+y+venda+pdf In PDF document text
    • http://files.refinedhouse.com/uploads/1/3/1/3/131384424/a1e3556.pdfIn PDF document text
    • http://files.marjazapusek.net/uploads/1/3/1/8/131856176/jepotugurek_bebapiwovujumu.pdfIn PDF document text
    • http://files.derekleebarton.com/uploads/1/3/2/6/132682647/0b794ace5.pdfIn PDF document text
    • http://files.3retrievers.com/uploads/1/3/0/7/130740087/2828180.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/1/0427/4647/8759/files/33564288221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8886/2614/files/nazibutatukul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8554/4089/files/28281712834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4976/3487/files/mamesoxatabuminineruduke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4394/5628/files/3205125409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3192/8740/files/71218774827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/tera_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7056/files/84936036105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9324/5590/files/10431403654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1596/9688/files/gibijurifadosabegisutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7860/6229/files/mobawevijetileduzogivapol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0258/4480/files/33147537638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5933/9674/files/mebetotukexejika.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_off00011382.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11382 5392 bytes
SHA-256: 2b177fdb573abf4fe47ea11ca3d5c3e636d7a8834c88d6a0befd2b8404e3f4b4
font_01_sfnt_off000125f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125F6 12180 bytes
SHA-256: 5754c3e7e007202237c3460cc665758e3a6739af436835e37de74fff4b78ba9d

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