Malicious PDF — malware analysis report

Static analysis result for SHA-256 f64305cd8c333faa…

MALICIOUS

PDF

39.7 KB Created: 2020-08-07 13:57:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f176294002f84fb065b7c34756de9e19 SHA-1: 982bba6d80a5ce9819b0d961c7be79d3127a0748 SHA-256: f64305cd8c333faa1afac4fb65ceffc1752d7054ab8b4f9f64834a626c512746
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=reliability+centered+maintenance+training+pdf', which is also flagged as malicious. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm or SEO poisoning 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.ru/pify?keyword=reliability+centered+maintenance+training+pdf In PDF document text
    • http://files.jasondearingprops.com/uploads/1/3/1/1/131164239/bewisopumibijinovovo.pdfIn PDF document text
    • http://files.melissa-haskin.com/uploads/1/3/1/4/131407227/gijokesegilorodo.pdfIn PDF document text
    • http://files.caitlynclester.com/uploads/1/3/1/4/131407194/jipimebegekemi.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/1/0430/4257/0402/files/25683694273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4112/0679/files/jujewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9881/6150/files/carboxymethyl_cellulose_properties.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/lenasesazaguwuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1619/9066/files/82311105006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4540/2277/files/cutting_tool_angles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4284/9446/files/21233588994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2217/8710/files/elfen_lied_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2007/2613/files/satamekid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2492/5347/files/la_boite_a_merveille_resume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4591/1709/files/sotifujuvet.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 8

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_off00005c9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C9E 5544 bytes
SHA-256: 4805349bf16624b57f1902e84f3dcf7800987d6d132fb163948d8d46c3034a1d
font_01_sfnt_off00006f71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F71 10088 bytes
SHA-256: 4cc5fa4a3fa42b3f96a44198cfebfd6db34a1f20ceefb1d9299727d2286d7b34

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