Malicious PDF — malware analysis report

Static analysis result for SHA-256 339154d2eccd32ab…

MALICIOUS

PDF

35.8 KB Created: 2020-09-14 08:28:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 144361c77b37987afd65c856f43548ed SHA-1: d50fce1fdb6a8cb0352bfc0b0c922679a4a8d86f SHA-256: 339154d2eccd32abf138050d7ae91930796a7c2db6b5453261cf2ccd934743e3
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL https://ttraff.me/pify?keyword=the+book+thief+pdf+google+docs, suggesting a lure to download a pirated book. The PDF_SEO_LINK_FARM heuristic further indicates a large number of external links, many of which point to similarly structured URLs on other domains, likely part of a link farm to improve search engine ranking for 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.me/pify?keyword=the+book+thief+pdf+google+docs In PDF document text
    • http://files.myoakhillchurch.com/uploads/1/3/1/0/131070325/9648055.pdfIn PDF document text
    • http://files.moderninternationalinc.com/uploads/1/3/1/4/131437584/5292523.pdfIn PDF document text
    • http://files.clergycave.com/uploads/1/3/1/8/131856065/8180422.pdfIn PDF document text
    • http://files.rorysugruesaddlery.com/uploads/1/3/0/7/130740065/xujorafobavuno.pdfIn PDF document text
    • http://files.sternsgym.com/uploads/1/3/0/9/130968996/a245cad4b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/2074c9_b89ec96cf221444db489254668d412bf.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a2ebd8_16a4de537c88402abd7f9cbdd98eaf0a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/8716ab_055664fc48264e0e8aff9498cca8fd4b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b916f4_e6eb8bb7b75343d48413fa808f901fdd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6531/9324/files/mapazuzivamopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0470/6828/3048/files/widezifujelakimojozowoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1682/2679/files/spring_framework_documentation_download.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/805d2a_c08bc433db914dbcaa8e765d706dfd98.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/3e0cb9_b8cbb408e31a4e42bff23a14dd08534c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/8a9bcc_db332c1734a849808630ed1ae90eb757.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_off00004f62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F62 5264 bytes
SHA-256: 60198d4fb2cbe125f1a6ebd8e4f2257663970c82caa39c4c9165d3c22725595b
font_01_sfnt_off00006151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6151 9780 bytes
SHA-256: 5d3030d0d7fa4e032a2201e6aad6ff082e11a89a1726493e9bc67205939dd4ba

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