Malicious PDF — malware analysis report

Static analysis result for SHA-256 617f9ce81167130e…

MALICIOUS

PDF

42.7 KB Created: 2020-08-05 16:54:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 903374adde2b796209f90501a974e2c5 SHA-1: be3fe1db07be8a08863f8a4b16f39b176bed24e3 SHA-256: 617f9ce81167130e47e3cd243a83ea3ba96f057b760c6f84891f916dfa6b151a
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a link farm designed for SEO manipulation. One prominent link directs to a known malicious redirector infrastructure, suggesting an attempt to lead the user to malicious content. The ML classifier also strongly indicated maliciousness.

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=analytical+chemistry+of+foods+pdf In PDF document text
    • http://files.sultanjihadahmadfoundation.org/uploads/1/3/1/4/131407423/fc72e189b6910d4.pdfIn PDF document text
    • http://files.islandervillas.com/uploads/1/3/1/4/131453267/52159a579208a.pdfIn PDF document text
    • http://files.uzodesign.com/uploads/1/3/2/6/132682039/9059922.pdfIn PDF document text
    • http://files.wildernesspropertymanagement.com/uploads/1/3/1/8/131872048/teruzinotob-fejixigezefi-foset-tufisegera.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/1/0438/9135/9899/files/australia_map_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1214/5823/files/gukefanorisubiwudada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2536/7194/files/27487132423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8575/6568/files/zezavegeluwawikikonarob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/ratipepalegef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8910/0951/files/buwizuxomeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/19296678937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1903/2987/files/sioscan_atomic_clock_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6649/8965/files/winedidukolazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7078/2624/files/skaven_7th_edition_army_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2554/5890/files/will_forte_net_worth.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3145/4119/files/meaning_of_economic_environment.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_off00006795.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6795 5484 bytes
SHA-256: c7e55b634567c7dc2e2fde79cc7074c162235bc6d3ce77af6810d2afd0db7932
font_01_sfnt_off00007a1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A1C 10436 bytes
SHA-256: 10f6f9533c999c18bc703e5908d8f279c59f2df1ebac86a451ce5ad7692c6e95

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