MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though corrupted, contains the URL that triggered the redirector heuristic. The primary attack pattern involves directing users to malicious infrastructure via a link farm, likely for SEO poisoning or phishing purposes. No scripts were extracted, limiting the analysis of further stages.
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/pify?keyword=silicon-+germanium+heterojunction+bipolar+transistors+pdf In PDF document text
- http://files.listentomypodcast.org/uploads/1/3/1/4/131438313/7bc60bca.pdfIn PDF document text
- http://files.createleadersnow.com/uploads/1/3/2/7/132712268/dadofifini.pdfIn PDF document text
- http://xuminepag.robynfraser.com/uploads/1/3/2/7/132741555/vidalokefomerut.pdfIn PDF document text
- http://files.emilyblueb.com/uploads/1/3/0/7/130775834/zifurororuwuzu_fimevuxeru_pupinew_gutavosotivojaz.pdfIn PDF document text
- http://files.inspiredmusic.us/uploads/1/3/0/9/130969454/da2e4f.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/1/0440/6090/1528/files/meredith_bernstein_literary_agency.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/notadenagefajofakiwu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3624/5142/files/17791384993.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4119/3110/files/39866100.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6620/4066/files/99623300230.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8555/2030/files/32717649582.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7901/6349/files/22639744715.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xedatojif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7886/7358/files/ragepimezevodabixefumalul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5630/0185/files/effectiveness_defined.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7249/5519/files/anamnesis_fisioterapia_formato.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1283/2931/files/30190448581.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_off000050f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x50F8 | 5800 bytes |
SHA-256: be91e0c75fe1ffb9a23d1a2202241e606d11bdd53754687a9109959f888631ff |
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font_01_sfnt_off00006476.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6476 | 10104 bytes |
SHA-256: 5b72de3118afa9e93017f8a0175a37ca74de5e2c276f24c062859bf505c33bdf |
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font_02_sfnt_off000086fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86FD | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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