MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links designed to redirect users to external sites, with a primary redirector identified as malicious. The document body, while appearing to be about scientific topics, contains obfuscated content and a direct link to the malicious redirector URL. This suggests a phishing or content-luring scheme aiming to distribute further malware or lead users to malicious websites.
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=metabolismo+de+nucle%25C3%25B3tidos+purina+y+pirimidina+pdf In PDF document text
- http://files.waveloopart.com/uploads/1/3/2/7/132740343/883d0.pdfIn PDF document text
- http://files.easternshorechess.com/uploads/1/3/1/4/131438819/jenofafevu.pdfIn PDF document text
- http://files.globalwarmingcompany.com/uploads/1/3/1/4/131407274/milavow-kadodu-rumanatuxo.pdfIn PDF document text
- http://files.ruleof5.com/uploads/1/3/1/6/131606046/pokowo-lokatojupipewor-giwekuw.pdfIn PDF document text
- http://files.allamericancargo.com/uploads/1/3/0/8/130814017/4c0a521491f304.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/1/0432/2436/7266/files/domixakoxuwezufevugix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5585/7315/files/71901652204.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7797/5717/files/xaxetobitemekovirumag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6954/6395/files/pitobipawevagirimoxeja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1404/3294/files/algorithm_design_techniques.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2823/3887/files/lowafowenejes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7034/0772/files/vedivavijefovoluboxudita.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4060/4314/files/bowunasel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1282/2939/files/dea_form_222.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8656/0936/files/bharathiar_university_m._com_syllabus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8833/9361/files/26997407231.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7560/9510/files/25857264935.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4434/7799/files/zinuvodobutukipe.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000068a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68A1 | 5684 bytes |
SHA-256: 99696097f223783c3165876dfe8ea7a109d479d3379f09e79455c8d67d0f829e |
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font_01_sfnt_off00007ba8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BA8 | 11108 bytes |
SHA-256: d0ba107fdfcc0f0f66b2541d28b72c10a952c7c655d2033b5987cde2550c6f04 |
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font_02_sfnt_off0000a003.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA003 | 16080 bytes |
SHA-256: d7c0313d84b709fe8a6a90baca56b34c20eeda1db47cffc02c31991c89a68c0d |
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