MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The document also exhibits characteristics of a password-protected archive lure, suggesting the user is prompted to download an encrypted file. Multiple links to external PDFs were found, many hosted on Shopify, with one redirecting through a malicious domain.
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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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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=amls+2020+pdf+2da+edicion+descargar+gratis In PDF document text
- http://files.orderbrewtoledo.com/uploads/1/3/0/8/130813362/1111872.pdfIn PDF document text
- http://files.marsokickz.com/uploads/1/3/0/7/130775649/depuredutivirin.pdfIn PDF document text
- http://files.be-remarkable.com.au/uploads/1/3/0/7/130738554/ba70baf96.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/1/0430/5672/6170/files/pefolexojom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38967404473.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7221/6483/files/36064402316.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87277754858.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/6717/4040/files/enduring_vision_apush_textbook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5339/1765/files/59139305693.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5199/7592/files/turibuxuzijigapinewak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6780/1749/files/9577270352.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4646/9793/files/zikugivatepixegoxofe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5189/0341/files/pakuzuzedazowilesipizu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8857/5638/files/absolute_essentials_of_music_theory_for_guitar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9544/8997/files/zuwukiporozipetofilat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/2283550224.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4686/2997/files/68042221880.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000057dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x57DD | 5740 bytes |
SHA-256: fb7a9dd0a5e747ba0da5191273e6b6f6a3a6e1985e5bdd57819876b5bf33b001 |
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font_01_sfnt_off00006b55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B55 | 10148 bytes |
SHA-256: c1985a2cfcd0b28608d93706ca0563a22a33cc805a0e5952ff1e999501ab3c64 |
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