MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates a direct attempt to lead the user to a harmful site. The 'PDF_SEO_LINK_FARM' heuristic suggests a large number of outbound links, many hosted on Shopify, which is a common tactic for SEO poisoning or distributing malicious content. The ML classifier strongly supports the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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.com/pify?keyword=canciones+faciles+guitarra+espa%25C3%25B1ola+pdf In PDF document text
- http://files.tightenyourboots.net/uploads/1/3/1/3/131381555/pezewelurexoperutale.pdfIn PDF document text
- http://tulizu.shipshapetipsboatbulidingandrepairs.com/uploads/1/3/0/7/130776760/jagewogubu-zowiw-zujadezed.pdfIn PDF document text
- http://files.lovecyprusdogrescue.co.uk/uploads/1/3/1/4/131408465/4544249.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/1/0433/8089/9991/files/8795481696.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/1867/1512/files/631_318_7100.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4054/6721/files/13380959782.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4409/2566/files/45737284835.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4178/1920/files/unity_fps_controller.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3398/4157/files/65086613191.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7794/9848/files/zaxijiwev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6774/4160/files/pejanutajobefibise.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0723/6503/files/83945817992.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8175/0941/files/pamugijotodoxib.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006974.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6974 | 5440 bytes |
SHA-256: 06586d170c3ee3fae639351b7600ae014056e92abdb39d94c5dc5af56a94f493 |
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font_01_sfnt_off00007bb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BB5 | 1888 bytes |
SHA-256: 7ef6cb6698fea806eec66effba9ae77859a8e18c03169e66e212b1421c87ab72 |
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font_02_sfnt_off000084c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x84C8 | 11328 bytes |
SHA-256: 6ddef1d36ab533fce7b902f0d9ad867f898a998296d6f5180c196fde24f87928 |
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