Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fec79b0a7714236…

MALICIOUS

PDF

42.3 KB Created: 2020-08-10 22:04:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 648d1cfa34c384258298e30a9cc8ecde SHA-1: f50932731952067f8687ba144a1e1fde2ab6a9d9 SHA-256: 7fec79b0a7714236d68941376459696ea818b4e571c615e451ce94aa0c151793
202 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=chiquitos+drinks+menu+pdf' and a list of other PDF links, suggesting a link farm or phishing lure. The ML classifier strongly flagged this PDF as malicious, and heuristics indicate it's a redirector and part of an SEO link farm.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=chiquitos+drinks+menu+pdf In PDF document text
    • http://nutufadaf.timelessvoicesohio.com/uploads/1/3/1/4/131408024/pipojazunizer.pdfIn PDF document text
    • http://files.berlinvfw.com/uploads/1/3/1/4/131483955/piguvejeti.pdfIn PDF document text
    • http://files.ourexecutivedirector.com/uploads/1/3/0/7/130775391/resapixirura-satosetoj-solov.pdfIn PDF document text
    • http://files.midamericaairmuseum.org/uploads/1/3/1/4/131482823/06cf5c3a50e238.pdfIn PDF document text
    • http://files.gmif.gmuforensics.org/uploads/1/3/1/6/131637047/3353059.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/1/0435/6869/3411/files/98506782594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3410/8323/files/cub_cadet_wheel_weights.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8733/1481/files/el_gnosticismo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/0319/6070/files/ielts_academic_reading_vocabulary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5348/2138/files/bourbaki_topologie_generale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2977/3981/files/ronumusiduxaxedonexiveb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/chemistry_chang_11th_edition_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4737/7301/files/swagger_api_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8432/5798/files/86841340222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3876/8284/files/cessna_172n_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7530/4612/files/descriptive_statistics_formula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1724/6632/files/pathogenesis_of_oral_candidiasis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1148/7397/files/lifotavegipofofuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1126/0067/files/bezojoduzupizanif.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_off00006739.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6739 5136 bytes
SHA-256: 4813893fd19d19444da3bef1b0fb2b43f0ee4623478d43e937ee8c9db48f38e9
font_01_sfnt_off00007882.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7882 10472 bytes
SHA-256: ba1d68493e8af227bebcd03d58e3a66351a18fdbe4884bae53610cd4e7fcd9fe