Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f47ee4f940ab3cb…

MALICIOUS

PDF

69.9 KB Created: 2020-08-22 08:54:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0994ecb9299b48cc3b526201e6576527 SHA-1: c41e195b626a6e4b522674ccac6da42dd860e2b1 SHA-256: 4f47ee4f940ab3cbbfd50dbcfd9b2a332b608e8c97c0e8e5948276acf70d275e
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=learn+bash+shell+scripting+pdf'. This indicates the document's primary purpose is to trick users into visiting a potentially harmful site. The presence of a large number of embedded links, many hosted on Shopify, further supports a link-farming or redirection strategy. The ML classifier also 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=learn+bash+shell+scripting+pdf In PDF document text
    • http://ladaxo.florabellabylaurenmonaghan.com/uploads/1/3/1/4/131437626/tanuxapa_wudadi.pdfIn PDF document text
    • http://files.utrofeu.com/uploads/1/3/0/7/130775598/baxazowog.pdfIn PDF document text
    • http://files.charitysportfolio.com/uploads/1/3/1/1/131163859/zepotirifexok.pdfIn PDF document text
    • http://files.astarlitnight.com/uploads/1/3/1/3/131378993/buwajati.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/1/0429/7133/2767/files/jofopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3595/7147/files/60330986539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1412/6759/files/lab_technician_2018_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2793/0011/files/vumogasodazunax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9599/0175/files/27078518368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0158/5570/files/bebej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2199/7979/files/zoxina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4611/6248/files/45944290519.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5594/6655/files/20959610643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6346/6389/files/travel_itinerary_for_visa_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5546/4104/files/zozomotamekopivebewufowig.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_off0000d3a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3A3 5496 bytes
SHA-256: b80c555070d03d9255dddc7bd19be2fc792138ff24aa601a94a2d0738c8a2291
font_01_sfnt_off0000e63f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE63F 10652 bytes
SHA-256: 30f800fba9f91d9681c502d01d9dc0d01d7bab856c6b7cf2bac781cda0d93219

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