Malicious PDF — malware analysis report

Static analysis result for SHA-256 d64f2b35a84462f1…

MALICIOUS

PDF

41.9 KB Created: 2020-08-22 23:46:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f5fcb5c882e264c966fd4f9817dc98c7 SHA-1: 2fbc7925d9efa325d0802624da83c946089cef86 SHA-256: d64f2b35a84462f17a677a525ea90d245f7c08e14e4165c369d89aa83951f364
194 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.com', identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and references to PDF downloads, suggesting a lure to a malicious site. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it's designed to redirect users to harmful content.

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/pify?keyword=apprendre+a+parler+francais+correctement+pdf In PDF document text
    • http://files.heartwoodprayerwheels.com/uploads/1/3/0/7/130739128/gojopiki.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/1/0437/0232/1307/files/muscle_gain_workout_plan_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9040/1685/files/passive_voice_mixed_tenses_exercises_advanced.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8006/4936/files/13425140910.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5720/8731/files/gram_positive_cocci_bacteria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/6519/1073/files/89294678035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4248/7972/files/pufed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/tajowifet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4353/4486/files/37841972498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8116/3157/files/carnes_rojas_y_blancas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6892/3799/files/rubaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3388/5846/files/pajesezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/3263/3495/files/bell_bottom_yethake_kannada_song_free.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 1

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_off000063b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B4 5288 bytes
SHA-256: 3074a9883d57bb8f5b81c5effd26072df06dd0ad0952ccf0ed4c7f6070f9313f
font_01_sfnt_off00007590.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7590 11216 bytes
SHA-256: 4d5a0bed3775521f121365b1d516b1eed34197a1480b685527624cfebd18a5bc

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