Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7946baf63f49ba…

MALICIOUS

PDF

42.0 KB Created: 2020-08-13 18:42:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a29966a0e2d1f2d980c7a81485b67813 SHA-1: 027cf753414eacec097b29b7eb7cbfb80b8946fa SHA-256: cd7946baf63f49ba2f144d44c7216b2c5ac247892c2f7f8d6db26d79c25fdeb6
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, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector infrastructure (ttraff.com). The document body itself is heavily obfuscated and contains the same suspicious URL. The primary attack pattern is likely to lure users into clicking these links, leading to malicious websites.

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/wb?keyword=que%20es%20etica%20social%20pdf In PDF document text
    • http://files.cablebaylimited.com/uploads/1/3/1/4/131452935/2480209.pdfIn PDF document text
    • http://files.watersaltbohojewellery.com/uploads/1/3/1/3/131378942/cb385514a0dbb9.pdfIn PDF document text
    • http://files.nancysfreshcutmarket.com/uploads/1/3/0/7/130740318/68c2b223e1.pdfIn PDF document text
    • http://gagopoge.skyviewgirlsbasketball.com/uploads/1/3/2/3/132303382/4289504.pdfIn PDF document text
    • http://files.andreagiordanomusic.com/uploads/1/3/2/3/132303028/c9f273625a006.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/1/0429/9502/4023/files/xapepopobimakemozosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5543/0309/files/labijadovutezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9164/7894/files/acrobat_file_reader_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1910/6461/files/lowest_common_ancestor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0838/5439/files/47587427405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4973/0727/files/gidupitibudafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1682/1672/files/xinalijaxajarok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0841/6168/files/fake_adoption_papers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8570/1019/files/d_d_5e_urchin_background.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/zaluwonipajuwaninadixewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7354/4093/files/mepitebiwow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5583/1445/files/99880872816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6152/6166/files/80993760785.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_off000065b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B0 5112 bytes
SHA-256: 8f3c4d0ec6f1b66e72422e4386d8c9f1d673f785c26c4a0643be35d9a79dcaf6
font_01_sfnt_off0000772e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x772E 11136 bytes
SHA-256: 0c4aa7e186b0d49aac297efd9ace78c961bdcb02753ac35339035d499573ad70

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