Malicious PDF — malware analysis report

Static analysis result for SHA-256 8328a14063067c7e…

MALICIOUS

PDF

43.6 KB Created: 2020-08-10 11:22:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1562565d99be0bf7439d7864e7348a51 SHA-1: 32b17c0f4d585be29a8229d1fd948099ca86c208 SHA-256: 8328a14063067c7e8bb0087dc9d2505eea048c35021282f4daf02a3349fa6ad9
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 redirector service (ttraff.com) known for malicious activity. The document body, though heavily obfuscated, also contains URLs that appear to be part of a link farm designed to attract traffic. The ML classifier strongly indicated maliciousness, supporting the conclusion that this document is intended to redirect users to potentially harmful 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.com/pify?keyword=writing+technical+documentation+pdf In PDF document text
    • http://files.crps247.com/uploads/1/3/0/7/130776338/jowonevogenexu-vexanib.pdfIn PDF document text
    • http://files.taylorhobsonserviceusa.com/uploads/1/3/2/3/132303229/a4f609b3d1346.pdfIn PDF document text
    • http://files.mayalissa.com/uploads/1/3/0/7/130739525/gudaruxipanagim_mozog.pdfIn PDF document text
    • http://gujedem.toddspianoservice.com/uploads/1/3/1/1/131164250/zovilos-lajebapiro-forewusifiwofa.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/1/0434/0108/5082/files/7502453462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9334/4924/files/academic_essay_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5800/files/gexupubudalasolutozased.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0357/4432/files/wifajeduxubuwexivov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9087/8372/files/biocalculus_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0058/6649/files/lizupirewuvij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0087/8488/files/jakuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5682/3453/files/theological_terms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1342/2753/files/45145406897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2649/7182/files/39412968133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/70629811143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5982/9149/files/qasida_e_burda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4398/7357/files/wordly_wise_3000_book_6_lesson_4_answer_key.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_off00006cc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC6 5404 bytes
SHA-256: 984bbafdd6b614f614c91e59ee35a1b65f78f5c8cf163e29fc91b35fce193fd6
font_01_sfnt_off00007f0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F0E 9960 bytes
SHA-256: 1ee90f3063ebd406f762094fe512093e067098e92eef4bb6b054b0984c163bbc

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