MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm with numerous external links, many pointing to Shopify domains hosting PDF files. One critical heuristic identified a link to a known malicious redirector at 'ttraff.com', which likely serves as the initial lure. The ML classifier strongly supports the malicious nature of this PDF. The presence of a link farm and a malicious redirector suggests the document's purpose is to lead users to malicious content, potentially for phishing or malware delivery.
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.com/pify?keyword=prentice+hall+literature+pdf In PDF document text
- http://files.fbchurch.ca/uploads/1/3/1/4/131483830/870f3564c7892.pdfIn PDF document text
- http://files.eam-studio.com/uploads/1/3/1/4/131452902/2306952.pdfIn PDF document text
- http://files.projecteva.org/uploads/1/3/2/7/132740185/sufiduzevovezamogot.pdfIn PDF document text
- http://files.swtradingcompany.com/uploads/1/3/0/7/130775537/a58ed09f09d0df.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0437/9194/1781/files/robert_half_timesheets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0602/5128/files/levejaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6761/3090/files/disexewut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6359/1583/files/devuxovepowu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5901/9933/files/8417785040.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9074/7295/files/megizafewiwesane.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8319/2738/files/elementary_number_theory_burton.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1760/0152/files/nividivajenikurefile.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6209/1163/files/jekaxusejakuxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7086/6076/files/xegigopajodegunawabakoze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0091/3310/files/tuvix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/5110/2887/files/cub_cadet_1000_series.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5608/7708/files/jebapamurinodepimuli.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4334/0956/files/86146234406.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_off000047ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x47EA | 4840 bytes |
SHA-256: cae16865011e6f85010d7a5064ca94ad10db50046bb4f41827d05c424650146d |
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font_01_sfnt_off00005844.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5844 | 9956 bytes |
SHA-256: a79b62711c8c2bfa7386ac017d91c0f00af8aea0295d28be4854e4e877a0b050 |
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font_02_sfnt_off00007a68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A68 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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