Malicious PDF — malware analysis report

Static analysis result for SHA-256 64313c4caed94034…

MALICIOUS

PDF

57.5 KB Created: 2020-08-27 14:54:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a988d55887922e04d9807001faec130 SHA-1: 9172acc4d8895b6fbc000317cab237698fe16b3b SHA-256: 64313c4caed94034df2a5db08f988542dedd1cea1dc19b27797c6fcccb01aa26
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector URL (https://ttraff.me/pify?keyword=comentario+de+plano+urbano+barcelona). This redirector is likely used to obscure the final destination, which could be a phishing page or a malware download. The document body is heavily obfuscated but contains the same redirector URL, reinforcing its malicious intent. The presence of numerous links to external PDFs, some benign and some unknown, suggests a link farm or SEO manipulation tactic to distribute malicious 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.me/pify?keyword=comentario+de+plano+urbano+barcelona In PDF document text
    • http://tuxepoti.beasleycounselingservices.com/uploads/1/3/0/8/130874197/782334.pdfIn PDF document text
    • http://lotesolu.kira-marie-mccullough.com/uploads/1/3/1/0/131070872/d47232fa8a8.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/1/0428/4809/2327/files/93670673981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3789/1477/files/womifibuxalepameduguw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6081/2193/files/cancun_weather_forecast_15_day.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9524/4452/files/51535094876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0703/1966/files/xipojakopowepakiridabas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7760/7324/files/59317228772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4248/6944/files/fuwabamogobakawoboka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7526/2869/files/resume_format_for_accountant_executive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/88490257821.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_off0000a309.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA309 5084 bytes
SHA-256: 319ebdb42de6f8450bba3a21101f010de98ece1e5fa275c122617e8f27a88d56
font_01_sfnt_off0000b425.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB425 10776 bytes
SHA-256: e9cbb394a160417e0f0c1151ae35357940c4a9e811198811337b51fb53d5d60c

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