MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to the malicious URL and several benign-looking URLs hosted on Shopify, likely part of a link farm to obscure the malicious destination. The primary attack pattern involves redirecting users to malicious infrastructure.
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/wb?keyword=oxigeno%20disuelto%20en%20agua%20pdf In PDF document text
- http://bagera.algodonesdentistry.com/uploads/1/3/1/0/131070036/b33d6a1e.pdfIn PDF document text
- http://files.ggiovane.com/uploads/1/3/1/8/131871849/4c93f58c374d5.pdfIn PDF document text
- http://gitad.silas-house.com/uploads/1/3/0/9/130968917/kovuz-gumip-dusemu-tigogafezi.pdfIn PDF document text
- http://files.heartbrake2breakthrough.com/uploads/1/3/1/4/131455543/8444828.pdfIn PDF document text
- http://files.alden-moore.com/uploads/1/3/0/9/130969656/neputipedo-lejakasevi.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/1/0430/7307/7409/files/gogutukotufegedofizujit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1021/1491/files/arcane_warrior_dragon_age_origins.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5502/2234/files/53864013959.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2186/8960/files/vidifesasijotawukiwisak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7935/9900/files/social_impact_assessment_process.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/taniseraguvifololesugom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9431/7981/files/astrology_a_guide_to_understanding_your_birth_chart.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3027/3448/files/ramepijegomifar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7954/1671/files/jesurudoxopimakikutenu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2703/8369/files/67481286459.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4903/3640/files/cursos_de_ingles_basico_gratis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9094/3904/files/73891342013.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3019/8937/files/16051879040.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000065eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65EB | 5208 bytes |
SHA-256: 6ecf140e8ad63849f92d4c12989621a8ab019886d2cc59c3055432a60f901d66 |
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font_01_sfnt_off000077c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77C3 | 10492 bytes |
SHA-256: 03f1cea6d3c0ae9ea12fb16de3c4c662bfd6b74f3f54a8d914d8976f15b03923 |
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font_02_sfnt_off00009a3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A3C | 16232 bytes |
SHA-256: 52699c0486b682794125e5175475e2ca574641a38a933a38dd21a03779b14908 |
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