MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF file contains a mass external link farm, with a primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=curso+de+ingles+pdf+gratis', which is identified as a malicious redirector. This suggests the document's purpose is to redirect users to malicious sites, likely for phishing or malware distribution.
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.ru/pify?keyword=curso+de+ingles+pdf+gratis In PDF document text
- http://files.openheartyogastudio.com/uploads/1/3/2/3/132302992/gulefajetida.pdfIn PDF document text
- http://files.nanasrecyclables.com/uploads/1/3/1/3/131380138/fijatusigalev.pdfIn PDF document text
- http://togun.jewishucb.com/uploads/1/3/0/7/130776483/3474674.pdfIn PDF document text
- http://files.a1homestay.com/uploads/1/3/1/4/131437410/6451355.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/1/0432/4392/9757/files/nirewevotejevif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6079/6318/files/86870540094.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9970/0889/files/mipubegisokomog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8488/1824/files/vezexabuxe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4184/1575/files/5464491122.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9707/9460/files/7041380916.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0645/9032/files/49008285721.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6657/2452/files/74978959354.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9569/5266/files/30125765425.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4211/1650/files/alp_psychological_aptitude_test.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3667/2162/files/pufarozex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0421/4942/files/7908184976.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1884/4322/files/gents_shirt_cutting_pattern.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_off00008813.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8813 | 5112 bytes |
SHA-256: acba72dd7556cff8da0c1ecad6f5ecd90eba8161d2c8d132bb833c0a4319baa7 |
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font_01_sfnt_off00009984.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9984 | 11672 bytes |
SHA-256: eaa6407f7bb9e6ebc693d90ee42bf8bd4983b85d381d526d8a965e6b076e26c4 |
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