MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple links to redirector domains, specifically identified as a malicious redirector by heuristics. The document body, though heavily obfuscated, contains a URL that matches the identified redirector, suggesting a phishing or scam attempt to lure users to malicious infrastructure. The ML classifier also strongly indicated maliciousness.
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=ielts+listening+test+answer+sheet+pdf In PDF document text
- http://files.mobileonegaming.com/uploads/1/3/0/7/130738710/24911e10608035.pdfIn PDF document text
- http://files.faithandfriendsinc.org/uploads/1/3/2/6/132696122/7582218.pdfIn PDF document text
- http://files.mattawanmasons.org/uploads/1/3/1/6/131606396/fikedekebozoxuvu.pdfIn PDF document text
- http://files.ethelbustamante.net/uploads/1/3/0/7/130775402/benuverafimapinomax.pdfIn PDF document text
- http://files.artisanteahut.com/uploads/1/3/0/8/130874110/penesuvuwesatof_pudimepuxodi_xawatokuz.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/1/0432/4327/4402/files/rains_of_castamere_instrumental.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/7065/5381/files/allan_kardec.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/26450283228.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dipudakafadaned.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0144/6554/files/vovobunugatalixak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2329/2822/files/penyakit_orchitis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6213/1869/files/8929260213.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5335/1066/files/zoloto_ball_valve_price_list_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1329/9620/files/xofefubusu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0902/2886/files/50073096128.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8419/3697/files/23152497505.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1512/6692/files/12947259900.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0949/9551/files/46480942652.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_off00007ec6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EC6 | 5008 bytes |
SHA-256: 002310ca18007609f5c45ebfe0ad0202663bfd9da69b3e79b381a464149ffd13 |
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font_01_sfnt_off00008fc8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8FC8 | 10468 bytes |
SHA-256: 9ae18951823c19ea2b280beadbb9e4c67fb1acac66afbe7e49d22a567e6931d8 |
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font_02_sfnt_off0000b345.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB345 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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