Malicious PDF — malware analysis report

Static analysis result for SHA-256 8382c06ee95fd78d…

MALICIOUS

PDF

47.3 KB Created: 2020-08-08 09:37:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d3b9db140e1794a10e97064e52957b3 SHA-1: a70b227c0dbe6eb3ec64c78acc746b4550c67ac0 SHA-256: 8382c06ee95fd78d685a8854aa95e7bdb9b021bce9f0a06e94b91f248e914b2e
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 indicating a link to known malicious redirector infrastructure. The document body and heuristics suggest a lure related to 'interesting facts about the human body pdf', which redirects to a URL that appears to be part of an SEO link farm designed for phishing or malware distribution. No scripts were extracted, but the presence of numerous links and the ML classifier's high confidence point to a malicious intent.

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=interesting+facts+about+the+human+body+pdf In PDF document text
    • http://files.ashaimanveal.com/uploads/1/3/0/7/130739348/dosimekinevepavupag.pdfIn PDF document text
    • http://xorefuder.violiningaja.com/uploads/1/3/1/3/131383544/53ff83b.pdfIn PDF document text
    • http://retiwew.cydneyuffindellphillips.com/uploads/1/3/0/7/130776542/3610950.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/1/0431/1279/2225/files/agile_scrum_master_certification_exam_questions_dump.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6734/1974/files/66361263631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7279/6325/files/lowes_post_hole_digger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5030/2616/files/97908326597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6641/6534/files/soferevipavirirawitutota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2170/5124/files/eloquent_javascript_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6774/4160/files/rifezopozap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/43747185685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8128/5286/files/7153701948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7170/8065/files/kevifedoguwurewefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/65895347987.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 3

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_off00007aa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA1 5716 bytes
SHA-256: a19b458351ae2a8a087298b3bcfe34bfc4bf301c15823029cb34f96cdd56ff77
font_01_sfnt_off00008df1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF1 10120 bytes
SHA-256: 408272929789e91a836db047a770885ab6f332abc7f3c3d876d1c94e058289a6

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