Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf4d50f8cc440f5f…

MALICIOUS

PDF

43.8 KB Created: 2020-08-19 14:01:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9b3b7056d4608cabe5fd885e50df5e27 SHA-1: 49f97a6d4e11b9bc8ffd97a7b31540b751354dfd SHA-256: bf4d50f8cc440f5fbc1f71b2a52029c7c0ad253d9e3017bc659028ad7f2cf497
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a malicious redirector link that points to 'https://ttraff.com/pify?keyword=job+tasks+template'. This URL is designed to lure users into clicking it by presenting itself as a job-related template. The PDF also contains a large number of external links, many of which point to Shopify domains, suggesting a link farm or SEO poisoning tactic to increase visibility. The ML classifier 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=job+tasks+template In PDF document text
    • http://javibiw.entacobowlsclub.com/uploads/1/3/0/7/130775403/bbaec23215.pdfIn PDF document text
    • http://resalike.innerframework.org/uploads/1/3/0/7/130738890/rowizoliledaviri.pdfIn PDF document text
    • http://gujas.jaredhammer.com/uploads/1/3/0/7/130740044/062ea34b107.pdfIn PDF document text
    • http://files.spotlessga.com/uploads/1/3/1/4/131437276/begadanodawi_mevudav_zabijusisukopat.pdfIn PDF document text
    • http://fiwokix.janpeterdegraaff.com/uploads/1/3/1/3/131381464/3050227.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/1/0428/5769/3347/files/guvoxiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/9366/0582/files/william_shakespeare_sonnets_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9860/9566/files/65166450303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4760/0796/files/tetekurobadozenofomilas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/damugok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0655/8359/files/wobumulelusogojelum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8201/4108/files/20979520888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/22771068585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3282/8314/files/581847594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8454/6209/files/bajogav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2724/2914/files/jurnal_abortus_spontan.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 2

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_off00006fec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FEC 5060 bytes
SHA-256: b3d814ff43c3ea07f0907d26435300e3b6991f35eea97219631697695368756f
font_01_sfnt_off0000810f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x810F 9768 bytes
SHA-256: 61b5e72d869dd3742d4df057aacac396724b19979debeef56a3ba4bfcbfbcac9

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