Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ee433e2fb88573f…

MALICIOUS

PDF

52.3 KB Created: 2020-08-10 20:15:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 88b4d619f0c9c83e3e99054edc62f2d6 SHA-1: 8f56cb748ece81dba3f0ab8e5c2aafa2d0f1b577 SHA-256: 1ee433e2fb88573f65da83761d6e56912aac6352acb1dd417273698c88c01817
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDF files, many hosted on Shopify domains, suggesting a link farm or SEO poisoning tactic. 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 partially corrupted, contains keywords related to educational materials, likely to attract unsuspecting users. The primary attack pattern involves luring users with seemingly relevant content to a malicious redirector.

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=ncert+books+for+class+7+maths+free+download+pdf In PDF document text
    • http://files.bhameconsoc.com/uploads/1/3/2/6/132682684/julusasulumiwa.pdfIn PDF document text
    • http://files.dancinglikethestarsanderson.org/uploads/1/3/1/4/131454383/6172300.pdfIn PDF document text
    • http://files.stalbanstpetebeach.org/uploads/1/3/1/4/131406507/xoxugujodananux.pdfIn PDF document text
    • http://gaduxira.parentsassociationofriley.com/uploads/1/3/1/4/131407089/3619148.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/1/0432/4573/2007/files/dopagawegeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1995/9463/files/appendicitis_classification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3854/files/40558064308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78992801071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1543/0559/files/92443083068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2586/6662/files/balance_general_libro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2558/7609/files/teteritamazixoliguju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1992/7713/files/wivepine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/24910945956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5770/8185/files/54226986023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2675/7270/files/manual_biomagnetismo_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8561/0654/files/vutufotov.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 7

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_off00008d61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D61 5740 bytes
SHA-256: 3062b131753271f6366f999e77eee00d07863a715c4fa688b50cdc6251ed2cdb
font_01_sfnt_off0000a0de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0DE 10644 bytes
SHA-256: b62c6ddd02536003d40bc18eaddf16d1fcfe8c8e1fe3fd37b3fff4a7165bead9

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