MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a prominent link that redirects to a known malicious domain, disguised as a visa application form. This indicates a phishing or social engineering attack. The PDF also contains a large number of links to external PDFs, many hosted on Shopify, suggesting a link farm or SEO manipulation tactic to distribute malicious content. The ML classifier strongly supports the malicious nature of this PDF.
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=korean+visa+application+form+sample+2018 In PDF document text
- http://files.career-readiness.com/uploads/1/3/0/9/130969143/b30920f4f88.pdfIn PDF document text
- http://files.appleseedsquares.com/uploads/1/3/2/6/132681452/titoke-paduzi.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/1/0434/7192/9496/files/tarjetas_auriculoterapia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4504/4892/files/english_unlimited_b1_student_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0508/2780/files/reading_vocabulary_development_3_cause_and_effect.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4528/2214/files/vitamin_b_deficiency.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0443/4988/2524/files/metallica_one_piano_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4506/8695/files/jemus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42632515291.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8353/8331/files/guess_who_s_baby_picture_game_template.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/6303/8367/files/suwumapadukinonuzade.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5147/5366/files/crash_bandicoot_pc_size.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0164/2135/files/tube_tamil_vijay_tv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6560/6301/files/zomokufume.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9279/5801/files/73290623974.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8457/1031/files/1117188589.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007aa7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AA7 | 3592 bytes |
SHA-256: d7087de4462ce7b2889f842324e91eaed2d25fc557e405e8a48715dfc80ee856 |
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font_01_sfnt_off0000876a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x876A | 5708 bytes |
SHA-256: 45f5446541b1afb4b2cbf42f03ce0a20accff5c017c87d226a143e8a27f28f64 |
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font_02_sfnt_off00009ac5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9AC5 | 2424 bytes |
SHA-256: 9059473c4baf4b2df1d14404b0b0560d5a57f7b82054dcb55b5a5bda586094e2 |
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font_03_sfnt_off0000a445.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA445 | 10828 bytes |
SHA-256: e5ba48eafc88c7b4bd4754eb607f4e362006f746972ff3febab5a55541c217d4 |
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