Malicious PDF — malware analysis report

Static analysis result for SHA-256 be939b6649df52c2…

MALICIOUS

PDF

48.9 KB Created: 2020-08-10 16:45:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4676645032930599df3e0efa11d6ad4f SHA-1: 70e04ff92d204872190f3059cae018331df9a86f SHA-256: be939b6649df52c24a5f510a0c78ab9b943caf68e62c47a65a603a93a6486cbf
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.cc/pify?keyword=avant+propos+rapport+de+stage+pdf'. This indicates a phishing or social engineering attempt to redirect the user to malicious infrastructure. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, and the presence of many links points to a link farm or SEO poisoning tactic to distribute the 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.cc/pify?keyword=avant+propos+rapport+de+stage+pdf In PDF document text
    • http://reziza.caitlincannonphotography.com/uploads/1/3/1/4/131411896/cfe1919ee970f0.pdfIn PDF document text
    • http://files.corey-s.com/uploads/1/3/1/6/131606046/dutejanomufede_wujonuguwarovo.pdfIn PDF document text
    • http://files.campidivolontariato.net/uploads/1/3/1/3/131398380/2cf2d4.pdfIn PDF document text
    • http://files.brunswickvalleyschoolofdance.com/uploads/1/3/2/3/132302993/puroro.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/1/0430/8258/0130/files/79965881587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2933/1100/files/19317599025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8139/1514/files/d_d_3._5_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5399/8487/files/biopsychosocial_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7077/4679/files/transformerless_power_supply_12v_1a.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/saxon_algebra_2_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5654/5433/files/zepuvopoxabokuwujipenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/siwotirilegaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/41227696090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6271/2734/files/rosakisusexamubeminir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3380/5471/files/22165864436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/buwukepenarunowara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7103/5809/files/kevefawavenopupufamalo.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 4

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_off00007ca6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CA6 5228 bytes
SHA-256: 6ad7c84d4d83a4453cb3921604d129e37d3ebac53dc256494daf7442e2bf4452
font_01_sfnt_off00008e80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E80 12328 bytes
SHA-256: d48da3a0991058ecb4908d7dcb0d8aa3d883f58ce0c04d4573d2851c4bdd2962

Open this report in the interactive analyzer, or submit your own file for analysis.