Malicious PDF — malware analysis report

Static analysis result for SHA-256 1710dd4df7720718…

MALICIOUS

PDF

61.4 KB Created: 2020-08-12 14:55:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cab48f3cc66e24bf3b9a7ab15da3d74f SHA-1: 2677a1f779aa66fee2986760f191fb28760c16e6 SHA-256: 1710dd4df77207188f4ee02f340b417905d02fa98e7a7710af0584b97ff50545
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links to a redirector service (ttraff.cc) disguised as search results for book titles, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, and heuristics confirm it links to known malicious infrastructure and acts as a link farm. While no scripts were directly extracted, the nature of the links suggests an attempt to deliver a second-stage payload or lead the user to a malicious site.

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=the+cambridge+history+of+the+american+novel+pdf In PDF document text
    • http://noporevo.northernfitness.net/uploads/1/3/1/4/131437423/5460077.pdfIn PDF document text
    • http://files.18crossroad.net/uploads/1/3/0/7/130740316/fifidimovuxetow_nezupevotedad.pdfIn PDF document text
    • http://jojuv.jasonrinehart.com/uploads/1/3/0/7/130739919/bodedu.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/1/0437/3846/4405/files/gst_payment_voucher_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7809/6798/files/2016_chevy_cruze_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2175/7590/files/5519312345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9419/6902/files/redukobefojunefofarika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5757/8138/files/python_pandoc_docx_to.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3551/6318/files/39025673194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7945/1295/files/sales_manager_duties.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1076/6486/files/37857050216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3913/7702/files/56985407634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6440/9764/files/33180091241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1787/1265/files/61899474555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0314/0506/files/xusaxinizalama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/bewogilugekejepelasudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5177/8202/files/94675097612.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_off0000b0e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0E6 5820 bytes
SHA-256: becc39fef8aa3652a3ef1e2af9980c3712fd0189871e815b958ea73a4dcc121a
font_01_sfnt_off0000c492.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC492 10424 bytes
SHA-256: e2bc4ad26b93731a311f2bed00b908cf68a8bbb018c5b3e868bfc7432e720bc0

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