Malicious PDF — malware analysis report

Static analysis result for SHA-256 174241807d157856…

MALICIOUS

PDF

42.5 KB Created: 2020-08-14 07:48:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7505f2c30d206921d01007b32ee6194 SHA-1: d7fd12f9586f07d0c2357e8ea3ff35460ee479b9 SHA-256: 174241807d157856f353feebe19330d8576abcfa6b84d930d666323088352c49
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to SEO-optimized pages designed to appear as legitimate downloads. The primary link, however, redirects to a known malicious domain, ttraff.com, suggesting a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports this assessment.

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=types%20of%20electrical%20wiring%20system%20pdf In PDF document text
    • http://kemat.anarchydieseltuning.net/uploads/1/3/1/4/131406381/c13fa.pdfIn PDF document text
    • http://files.alvinmark.com/uploads/1/3/1/4/131406855/2121a.pdfIn PDF document text
    • http://navuxines.napasugar.com/uploads/1/3/1/3/131380983/6931403.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/1/0433/6821/8780/files/roponujusapanejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7777/1162/files/99236031517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7608/4117/files/57619212517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4966/2117/files/pmbok_guide_5th_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1042/4993/files/43444510087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5193/4108/files/febixabubabexogoravo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3654/0069/files/49191905325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6734/1974/files/fapodosikonef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7408/3233/files/ribew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5296/6812/files/tukamimupoberip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wojifuxazax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/shimano_altus_fd_m310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5947/6630/files/66904845021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6818/6024/files/relatrio_de_auditoria_financeira.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 4

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_off000065f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F6 5620 bytes
SHA-256: 15486384d84b773099234bc9340d76a024fb472896669be77318584a2b280d32
font_01_sfnt_off00007910.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7910 10556 bytes
SHA-256: 77bef9ddf13985dad0b0b5f9c6b903f653f2ce317d11d47fa42474007faf91b2

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