Malicious PDF — malware analysis report

Static analysis result for SHA-256 67e39745e0938be9…

MALICIOUS

PDF

45.5 KB Created: 2020-08-08 17:42:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d4b08861efd92122dc6b4c80ba49839 SHA-1: 2336ade1474fdf608df78dfefdef9c36a1b8b10f SHA-256: 67e39745e0938be9d01c1a8b505cba344c31b53d30dc9afe973a3df305594827
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, also contains the same malicious URL, suggesting an attempt to lure users into clicking through a link farm for SEO manipulation or phishing. The ML classifier strongly supports the malicious verdict.

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=candlestick+patterns+pdf+in+telugu In PDF document text
    • http://zutijib.jwsavageinvestigations.com/uploads/1/3/2/7/132710712/fixut.pdfIn PDF document text
    • http://files.jeremyleewolin.com/uploads/1/3/1/4/131483042/rufixiku.pdfIn PDF document text
    • http://files.spashphysics.com/uploads/1/3/0/9/130969190/xitasutapavojuxi.pdfIn PDF document text
    • http://kafimis.rabbipauljacobson.com/uploads/1/3/0/7/130776407/jidida.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/1/0428/9835/8432/files/20424522606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5099/0753/files/sidunuwugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1290/7423/files/pejijubezarudowewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1094/9273/files/tipos_de_cilindros_hidraulicos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9842/2934/files/74965862859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6576/1176/files/soveleniraxijaruva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0550/1852/files/mesonutejetefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7367/4142/files/bewulalogumamedivakep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1479/7981/files/cards_against_humanity_expansion_german.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1795/3702/files/autocad_to_converter_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2639/8888/files/acknowledgement_sample_for_dissertation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9488/2984/files/jepejimozuretetewokabisex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3097/7434/files/86137806821.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 5

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_off000073ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73CE 5292 bytes
SHA-256: 67b8e5109b269096101c9b7f669289b36a63bf6cc7360e06c9a4d4dab3f0c9bf
font_01_sfnt_off000085de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85DE 10160 bytes
SHA-256: 8f34cd8cfa8cb7b8eb198d88e07a861916048cbe536eb6296ffc8925eaa913c7

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