Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f3ea34befbf204c…

MALICIOUS

PDF

44.6 KB Created: 2020-08-22 11:58:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a15e142f5af1bdc029dfb6bb16daf49 SHA-1: cd55dd4b82a17db421b149298f3cf7139faa282f SHA-256: 0f3ea34befbf204c54abc0d11035f33e8f52066505a1f747d017492b2f6392a9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc). This indicates an attempt to create a link farm for SEO manipulation or to obscure the final destination of malicious links. The primary redirector URL is associated with known malicious activity, suggesting a phishing or malware distribution lure.

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=android+10+vs+android+9+battery+life In PDF document text
    • http://files.halleluyahfire.org/uploads/1/3/2/7/132712093/nepiragavo-zinogizukexun.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/1/0459/9824/3999/files/disboards_cruise_trip_reports.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6638/3768/files/wadakepududetarunegonunex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/datofugilasififuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2190/9662/files/34436820296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/symmetric_matrix_eigenvalues.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6966/8517/files/critical_theory_today_tyson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26450106566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3366/3400/files/lost_high_school_diploma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0510/0711/files/63320985536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7201/9877/files/wow_small_furry_paw.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 2

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_off0000719a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x719A 5544 bytes
SHA-256: 0dc0482b46de62a1aeda5d7a2dea71edd0cc1528d634d7388b2017ce35b19917
font_01_sfnt_off00008484.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8484 9824 bytes
SHA-256: 3d1e38f8e7609d3205ce71b77d5ef51c5838df5de663bb07c6b5f9f1c3ee73f7

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