MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm designed to appear as free PDF downloads, but the primary link redirects to a malicious URL. The document body contains obfuscated text and the initial redirector URL is confirmed malicious. The file leverages a common SEO-based PDF lure to drive traffic 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/pify?keyword=os+axiomas+de+zurique+pdf+gratuito In PDF document text
- http://files.princetonmeadow.com/uploads/1/3/0/9/130968961/gujumigajaruj_fozafawevazawan.pdfIn PDF document text
- http://files.walleycreeknanaimo.org/uploads/1/3/1/0/131070560/5150796.pdfIn PDF document text
- http://files.walkaboutjesus.com/uploads/1/3/1/3/131381720/14f92a.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/1/0434/2526/7877/files/8281420963.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9597/2256/files/nopasenefijarunos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7670/5690/files/wexipa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0417/4233/files/rocket_league_png.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5943/6951/files/35641917976.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7732/1379/files/xixukoxojijetuwerapevag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7362/5500/files/lake_ouatchta_fishing_reporg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6027/4087/files/jegagepubipurunisal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tokavurovapipemekimisam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2443/9717/files/iowa_state_football_schedule_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3998/8648/files/menijez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/7930/6135/files/convocatoria_beca_de_permanencia_2018.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8068/7524/files/kipadi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5593/8725/files/how_to_draw_a_christmas_tree.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_off00007a58.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A58 | 5376 bytes |
SHA-256: 83c003e44dada6f50bc862a80c5f03c79783d2aeef3d84c8582a54cbe3c5bec6 |
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font_01_sfnt_off00008caa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CAA | 13028 bytes |
SHA-256: 258bb8ae1147632f50baa360348ca78125d04da0a2c4299677d460173a6a0b0e |
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font_02_sfnt_off0000b4e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4E2 | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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