Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaedad71a40835ec…

MALICIOUS

PDF

116.4 KB Created: 2020-08-17 01:08:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e2c479cf527048da08a03dac2a909e89 SHA-1: f898640cdb4c2b4949f7d87902324163f5249e7f SHA-256: eaedad71a40835ecd5edb1be70dc13e5db63ce12c8c881c75d25abdb7c2ecbe6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=manual+de+calderas+de+vapor+pdf'. This indicates the document is designed to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to improve search engine visibility for malicious content. The ML classifier also strongly flagged this PDF as malicious.

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=manual+de+calderas+de+vapor+pdf In PDF document text
    • http://files.womenofwpg.com/uploads/1/3/1/4/131453268/4db4d5e4338.pdfIn PDF document text
    • http://files.elevensixteenstudioco.com/uploads/1/3/0/7/130775245/silivapemuvu.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/1/0430/7858/2439/files/69164026698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6302/4542/files/antonin_dvorak_biografia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0985/9999/files/jirexibagukopumupid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/lelopuzalidep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9400/6177/files/que_estudia_la_psicologia_social.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6262/4417/files/bayesian_inference_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8850/1143/files/xuvomor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16711599054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5523/5740/files/kandungan_mol_bonggol_pisang.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2682/4859/files/14825734605.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 1

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_off0001899f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1899F 5212 bytes
SHA-256: b08d0760889a3010ba3272636941fef1ac3969cb07b8301c395801a5f801d17d
font_01_sfnt_off00019b6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19B6D 12476 bytes
SHA-256: 555aa37f36f1550ee1142dbde6c4a29452b57b1d3813c61a23261fb041fc0cda

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