Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f7140cc435fb6db…

MALICIOUS

PDF

41.9 KB Created: 2020-08-14 05:04:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 91481db6633941fff4018025a506cacb SHA-1: ec21fb51092ef91afac0ab1d09202fa35da4603f SHA-256: 6f7140cc435fb6dbfebf0c0f90a728f337597156005cf3b692df93dbe49ab1d4
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The document body, though partially corrupted, includes a URL that appears to be part of a phishing lure, attempting to disguise itself as a game trophy guide. The ML classifier strongly supports the malicious verdict.

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=battlefront+2+ps4+trophy+guide In PDF document text
    • http://gikodeke.jonjohndesign.com/uploads/1/3/2/8/132814930/fivujigusif_wazituwofiba_zavesa.pdfIn PDF document text
    • http://files.perthbiblechurch.com/uploads/1/3/1/4/131437948/fa016c0f62b226.pdfIn PDF document text
    • http://natuduved.bostonunitycup.com/uploads/1/3/1/4/131437623/8509399.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/1/0432/5982/2243/files/sabixadizun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/linkin_park_don_t_stay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3853/8904/files/fexodutaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4489/6917/files/asus_multiframe_software.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1267/5995/files/7151652239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3087/9125/files/lologavopobibojozibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4357/7256/files/27789236569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7280/5277/files/buxidif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4464/2716/files/63210186558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4388/9058/files/dofenedezifonezorol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6511/4775/files/45160711424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6536/0027/files/arabesque_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6382/8895/files/rujevumuleredogisi.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 3

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_off000053aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53AA 5556 bytes
SHA-256: 125390714ae03e759eaf0f0e495c628bfd7fdf0677f9259b02a38b82e3eef410
font_01_sfnt_off00006694.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6694 11576 bytes
SHA-256: 03308e00e27c7f4f6e061ab57c96d18262d12a493e2595619d56d62be5c9f1e6
font_02_sfnt_off00008c94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C94 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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