Malicious PDF — malware analysis report

Static analysis result for SHA-256 59a97f3dbe7d41f4…

MALICIOUS

PDF

44.0 KB Created: 2020-08-12 17:28:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06ff956568f8ec77ddc7853f67de4391 SHA-1: 5ad2aa4a08d71804bfd0bb9367af54436dad3052 SHA-256: 59a97f3dbe7d41f4e6de07888b7bf8554f3aea26c85a6fd91f9a8087d334dfe0
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirection and a social engineering lure to install a browser extension or update. The primary malicious URL, 'https://ttraff.com/pify?keyword=adobe+reader+pdf+application+download', is used in conjunction with a large number of benign-looking PDF links, likely to obscure malicious activity. The document body itself contains obfuscated text and embedded URLs, suggesting an attempt to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=adobe+reader+pdf+application+download In PDF document text
    • http://files.floridatennismagazine.com/uploads/1/3/0/9/130969967/jamaritidepufi_bogutimuni.pdfIn PDF document text
    • http://files.datumautomation.com/uploads/1/3/1/4/131437119/zesuzijafipeku_tinurop_pulefeg_zijusuxadalen.pdfIn PDF document text
    • http://files.littlehartspreschool.com/uploads/1/3/1/3/131379540/7136773.pdfIn PDF document text
    • http://kamurod.ericavannon.com/uploads/1/3/1/1/131164250/6228943.pdfIn PDF document text
    • http://files.coaching-planet.com/uploads/1/3/0/9/130969431/6841827.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/1/0437/6982/3383/files/c_programming_tutorials_in_sinhala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/key_and_peele_college_football_names.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3340/2266/files/letter_format_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4133/9045/files/73482253981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0473/1300/files/kisuwavib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/9161753419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4730/2806/files/install_small_chrome_extension.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6524/4832/files/cancer_del_cervix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6415/6582/files/17867682368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7827/1641/files/jekufesigagigojenofasawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/vinepogef.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C91 5192 bytes
SHA-256: f259a890a23aced329f008b3b8c5d14ac2b5d5153bf3d1948c8abdc6f815a658
font_01_sfnt_off00007e57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E57 10668 bytes
SHA-256: 1913e614e91110c3bdd914e1ec22d0968d6781eeef4a66f7e575db69104b6c6e