MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a malicious redirector link that points to a URL designed to trick users into downloading a PDF. The document body, though heavily obfuscated, appears to be a lure for a technical book. The presence of numerous external links, many pointing to Shopify domains, suggests a link farm or SEO poisoning tactic to increase visibility of the malicious redirector.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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.cc/pify?keyword=mastering+bitcoin+programming+the+open+blockchain+free+pdf In PDF document text
- http://files.ccceinc.org/uploads/1/3/1/6/131606630/ruwifadedosojexuxo.pdfIn PDF document text
- http://files.personalsafetyandpistoltraining.com/uploads/1/3/0/7/130775848/sofogemixunakutose.pdfIn PDF document text
- http://files.vullowisp.com/uploads/1/3/1/1/131163774/rubabefozet.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/1/0434/3355/8168/files/6745579440.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1909/2647/files/59010096467.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9661/2768/files/6773960285.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9914/3838/files/4328595171.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7560/9510/files/39857379197.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8845/4559/files/19107485974.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4525/6352/files/49322804761.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/3831/9527/files/34687902072.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3137/9618/files/50427859732.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8908/4068/files/31304420724.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0860/5859/files/xiwobenedagavifex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3382/9277/files/29438346079.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000759e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x759E | 5564 bytes |
SHA-256: d5e71e3bb38b891b2b4a63263f57d79c3376d0b63c30169ace06215c59a8d9d6 |
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font_01_sfnt_off00008849.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8849 | 1768 bytes |
SHA-256: 159711d1b98c995f20f188c1d37d784dbbfd483212a405608feacdcb51223f69 |
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font_02_sfnt_off00009114.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9114 | 11460 bytes |
SHA-256: 44381cda48259dbe0c2ed28f0d19e0f07d8c94beb70f99fbf310e7be80c4bf3a |
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font_03_sfnt_off0000b797.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB797 | 16788 bytes |
SHA-256: c1577f57d62e94470c48c16612362e25bf4924e4ed94cc620fab4f6334b7daa6 |
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