Malicious PDF — malware analysis report

Static analysis result for SHA-256 17e387040403f00e…

MALICIOUS

PDF

43.9 KB Created: 2020-08-04 19:17:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 591a3ac5b493ff73b1fc93dc57cc097d SHA-1: c2c7e0f1ca66250d7b841c104ba0257a09404f43 SHA-256: 17e387040403f00e2eeeecac78a74990885afd0169b9f429acfe0118b4ff1850
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which point to a redirector service that is known to host malicious content. The document body and heuristics indicate a lure for free downloads, which is a common tactic for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious.

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=neet+biology+chapter+wise+questions+and+answers+pdf+free+download In PDF document text
    • http://files.griphero.com/uploads/1/3/2/6/132682646/xorixadifora.pdfIn PDF document text
    • http://files.iseeyouministry.com/uploads/1/3/0/7/130739415/vitoguwobaji_zurodonixofidan.pdfIn PDF document text
    • http://files.oldtel.com/uploads/1/3/0/7/130775714/57d6f9193b1e742.pdfIn PDF document text
    • http://files.cinemaclubfilmprojects.com/uploads/1/3/0/9/130969459/5433442.pdfIn PDF document text
    • http://files.hinghamspeechtherapy.com/uploads/1/3/2/7/132740485/4272081.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/1/0432/0159/3507/files/60854849199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6016/5797/files/salesforce_developer_interview_questions_and_answers_for_experienced.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7668/0870/files/14257559834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3334/6719/files/3589602959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/20774307751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7238/files/osrs_earth_alter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1748/7011/files/sufotebafalimabiwemivugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2225/3208/files/tupagazutovunip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8554/files/93015494377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4181/5718/files/depoveruzaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1137/4230/files/datejukuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2915/2423/files/33102666941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6057/5908/files/shia_books_urdu_download.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_off00006a62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A62 5848 bytes
SHA-256: ab0bfa45d9ee6170d6c00684e805c4dec300976bf73d451a1006320a8439cbc1
font_01_sfnt_off00007e5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E5C 10420 bytes
SHA-256: 71c75edcde073ed71622dda0a01d78b9034da5fd7332c255385c9af6feb4854c

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