Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fa75e69c9d8944d…

MALICIOUS

PDF

41.4 KB Created: 2020-08-26 10:23:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 75378d1cabb49d812ce71422b4fb4460 SHA-1: c55653732f19bf1380d92426b3833dab43c30eed SHA-256: 0fa75e69c9d8944d64b64d4ef39dc280a5adbb9a3366ad3ceb150633d7bce43e
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious URL, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_UTM_REDIRECTOR_LINK' heuristics. The document body, though heavily obfuscated, contains text related to a crossword clue and the malicious URL, suggesting a phishing or scam lure. The ML classifier strongly indicates maliciousness. No scripts were extracted, but the primary attack vector appears to be the redirection to a malicious site.

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=the+curse+of+capistrano+hero+crossword+clue In PDF document text
    • http://files.techreviewed.xyz/uploads/1/3/2/7/132712615/5446523.pdfIn PDF document text
    • http://files.umichfishing.com/uploads/1/3/0/7/130775746/c0503694189e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1256/1819/files/types_of_hedging_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4669/7125/files/amharic_reporter_newspaper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2961/1171/files/76566424116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8982/0836/files/probability_equations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/81722840737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/6288/7335/files/32875573467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0097/7816/files/shoulder_muscles_anatomy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2656/0677/files/search_a_document_for_a_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/aeronautical_sectional_charts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1356/2787/files/dewolubug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4540/2277/files/54636557727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/8389/8520/files/been_love_memory_plus_apk.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000562b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x562B 5164 bytes
SHA-256: 62daa638230ddacae934346044bc8322a735cb83b3e7907cd1c4953e92455b46
font_01_sfnt_off000067c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67C5 10184 bytes
SHA-256: 032f283c7de4f3b62b51540c110327e9cbc4b4a1665c987e8d68d0e3c443b720
font_02_sfnt_off00008aa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA4 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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