MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious due to a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic fired, revealing a large number of embedded external links, many hosted on cdn.shopify.com. The primary malicious URL identified is https://ttraff.cc/pify?keyword=acido+y+base+pdf, which is likely used to redirect users to a malicious site. The document body contains garbled text but includes the malicious URL and several other PDF links, reinforcing the link farm attack pattern.
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=acido+y+base+pdf In PDF document text
- http://files.dnacrobatics.com/uploads/1/3/0/8/130814769/ruzegoxune.pdfIn PDF document text
- http://files.thehomeschoolgarden.com/uploads/1/3/0/7/130776503/mizadabetuwot-tujoxad-luxititam-vuvefalu.pdfIn PDF document text
- http://files.drwilliammunro.com.au/uploads/1/3/2/8/132815872/1f8fcc2d.pdfIn PDF document text
- http://files.canberraveterinarycrisisfund.com/uploads/1/3/0/7/130776483/bijiguvutu.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0438/0885/0081/files/9727220222.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0979/4463/files/dogipatuzofatu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2019/7789/files/90904012375.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0453/4692/files/buxisi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8731/4585/files/dujupis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuxovozukirofavekejob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9978/3319/files/69741949.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2571/0756/files/galugixanodegapu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2957/6352/files/gobibivifewejewedovisale.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pewowa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7594/5126/files/famonumigutev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9111/5678/files/brachycephalic_syndrome_dogs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1530/6405/files/kitojobusag.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_off000097a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x97A5 | 6756 bytes |
SHA-256: db65b25c37f12ee23d5f950b829f9c1a3508f2dcf825f0a90e02876ce7a1b0ba |
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font_01_sfnt_off0000ad9d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD9D | 5252 bytes |
SHA-256: 9e990f5410d6c8db31a10ed270b79a8c098b513d82f3b5e0899d9ee4fbf3e9e1 |
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font_02_sfnt_off0000bf9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF9A | 16532 bytes |
SHA-256: e7acd87e5979007335f57ceb0a741f43eef2e572988eaea9a27333cb8375b309 |
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font_03_sfnt_off0000f14a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF14A | 16060 bytes |
SHA-256: dd623c2e4b2147c2f7333d3c498093e2ac050c7884d0c32cc27f4d3210532701 |
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