MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains numerous links, many of which point to a redirector infrastructure identified as malicious. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a story, likely to entice users to click on the malicious links. The ML classifier strongly indicates maliciousness, and the presence of a redirector link suggests an attempt to lead the user to a malicious site.
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/wb?keyword=a%20verdadeira%20historia%20da%20chapeuzinho%20vermelho%20pdf In PDF document text
- http://files.clothdiaperproject.com/uploads/1/3/0/8/130874162/27dc0.pdfIn PDF document text
- http://files.ri4d.com/uploads/1/3/0/7/130740357/fabara-fazuwilumeka-poxidixexora.pdfIn PDF document text
- http://motux.koococafe.com.au/uploads/1/3/1/3/131379578/434c81ad4580cf.pdfIn PDF document text
- http://kuzifiwox.stjosephpinebluff.org/uploads/1/3/1/3/131379578/7ad99e194.pdfIn PDF document text
- http://files.bellaluephotography.com/uploads/1/3/0/7/130776327/xotasafulajeros_kuludovunokar_batozomi.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/1/0431/5702/9024/files/chemistry_buffer_solutions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5511/9512/files/agentes_economicos_de_circuito_economico.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4104/5145/files/sawoxosupebelobizinosabez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8070/4405/files/30033206649.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5725/0455/files/gafobumagejolo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9899/4843/files/best_reader_app_for_android_phone.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/7583/5806/files/wipifejutojirekixu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4354/3447/files/pdf_burdah_dan_artinya.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2754/5757/files/lasuxoluxudedefukonariza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6819/3952/files/workers_compensation_act.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2207/2480/files/xomupiluzavut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0052/8033/files/jatag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2720/2205/files/occupational_safety_and_health_management_thomas_j_anton.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_off000098df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x98DF | 5376 bytes |
SHA-256: 5c88eda828321ffa3cbc697639b73798700110db3efb27f1b26dda4e650afd10 |
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font_01_sfnt_off0000ab05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAB05 | 13704 bytes |
SHA-256: 00313a7b609eec718e09ae3e5816d7d1976d5b80e85015e4729bf96ccb0ad577 |
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font_02_sfnt_off0000d57b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD57B | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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