Malicious PDF — malware analysis report

Static analysis result for SHA-256 707ad6c2824928a7…

MALICIOUS

PDF

44.6 KB Created: 2020-08-28 06:22:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 950b83bc002433f450f8109b3c1aee48 SHA-1: d4a67c27d48d6c11dc2ff6e77b9aa8ad52a9f338 SHA-256: 707ad6c2824928a7bf5e44c195d74a5b3b8900eb66e47add992180db240ea56e
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to what appears to be a link farm designed for SEO manipulation. One prominent link, 'https://ttraff.ru/pify?keyword=fratura+de+patela+tratamento+cirurgico', is flagged as a malicious redirector. The document body, though partially garbled, includes this URL and other links to PDF files, suggesting a phishing or scam attempt to redirect users to malicious sites under the guise of providing information.

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.ru/pify?keyword=fratura+de+patela+tratamento+cirurgico In PDF document text
    • http://files.hannahlynchphoto.com/uploads/1/3/1/4/131407281/4576040.pdfIn PDF document text
    • http://files.cardinalaviation.ca/uploads/1/3/1/3/131398366/zoxumadafuxifidanixe.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/1/0429/3646/7612/files/midagulid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3685/1874/files/37587712540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7185/5002/files/basolitukerubawudelex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/34147291111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6094/4296/files/panuwoviwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9007/4016/files/mojelijamugibadurixus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1787/1266/files/a_fast_iterative_shrinkage_thresholding_algorithm_for_linear_inverse_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5026/0890/files/waxosogimex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7794/9848/files/nuguw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6299/2795/files/48359140029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6690/1148/files/fogakavumipulijetabojusiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/lire_le_journal_el_watan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6705/7063/files/49038292080.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 5

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_off00006d89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D89 5172 bytes
SHA-256: e9aab1b17d8ce29b065ce49361756a473fcde048aa20c89754d157d2dda7221c
font_01_sfnt_off00007f09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F09 12692 bytes
SHA-256: 3f1b31e28ba6210da0897d45e339e531ff55844f5c0b53280396fadeb91193ee

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