Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b36b4d038b6e3e6…

MALICIOUS

PDF

43.1 KB Created: 2020-08-19 00:39:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d267ba0495ea496b20df3c1bef8f8205 SHA-1: caf9e3b7685e88177c8b0907d046f901fad1f28a SHA-256: 7b36b4d038b6e3e61807a697a8d5de0bf51938e9c74a6732ef1f970c705d6919
194 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by an ML classifier and contains multiple links to redirector infrastructure, specifically 'ttraff.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=report+counterfeit+cigarettes+uk', suggesting a lure related to reporting counterfeit cigarettes. The presence of numerous links, many pointing to Shopify domains hosting other PDFs, indicates a link farm or SEO manipulation tactic to distribute malicious content. No scripts were extracted, but the PDF structure and embedded links strongly suggest a phishing or malware distribution attempt.

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=report+counterfeit+cigarettes+uk In PDF document text
    • http://files.relaxingcottages.com/uploads/1/3/1/3/131384407/lerasuzet_zuzalebuwi_narobelovadoge.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3809/7051/files/homeownership_advisor_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4459/9958/files/bizilalawedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3444/1890/files/dosoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/career_path_psychology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1311/8872/files/palgrave_study_skills_critical_thinking.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dijev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7795/8822/files/7473816244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5651/9576/files/62815032150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1498/7669/files/17544371535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0930/9848/files/bitatosekelajexutumo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C35 5104 bytes
SHA-256: 990367a9e76cc0dd835c1c2f777d21980b7d0c18318583d5e779a6b6b14858ec
font_01_sfnt_off00006daf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DAF 10576 bytes
SHA-256: 9196a306942375ca3d9f92c7740c8070545a39e573da6b04b4b4af26a9d3f42c
font_02_sfnt_off000091b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91B4 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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