Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f532192e52aa87b…

MALICIOUS

PDF

41.0 KB Created: 2020-08-24 12:30:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b1fe2dec97d8b35da517f348b63576b3 SHA-1: e49eabbb8280a3fe1b57c5bddb167abd1351908d SHA-256: 6f532192e52aa87bbbbe53fe98eab70d4d3b0cd6fa8b51ecdda7ac48eac9a42d
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=codswallop+crossword+answer'. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for a crossword answer. The ML classifier strongly indicates maliciousness, and the overall structure suggests a phishing or scam attempt to redirect users to malicious infrastructure.

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=codswallop+crossword+answer In PDF document text
    • http://files.unionists.org/uploads/1/3/0/7/130739971/2068778.pdfIn PDF document text
    • http://files.catherinecarterphotography.co.uk/uploads/1/3/1/4/131405977/selikivutanu.pdfIn PDF document text
    • http://vesafinap.nyctutor4kids.com/uploads/1/3/1/8/131871780/e3493.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/1/0432/2718/5309/files/72842645167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2307/2412/files/288373350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3028/9311/files/workability_of_concrete_by_compaction_factor_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/kibuzowajejibiduxipenemuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7747/6253/files/33040165104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/radipununutewubamojam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9400/7201/files/93394025069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5530/7159/files/93514209051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1104/7575/files/47529635828.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 4

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_off000056a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56A2 5064 bytes
SHA-256: 355fdf6b284a99b36866f3353998a0f406fb19434116434c29a4f5e775cb59ca
font_01_sfnt_off000067fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67FC 15276 bytes
SHA-256: a63eaa237b1277d1611e2150f6be07377b032c746146c51c1398748908a7c5f8

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