MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the malicious URL. The presence of a 'download button' heuristic further supports the lure mechanism. The primary attack vector appears to be tricking the user into clicking a link that leads to a malicious site, likely for further exploitation or credential harvesting.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=ciclo+biologico+de+balantidium+coli+pdf In PDF document text
- http://files.albuquerquerenovation.com/uploads/1/3/0/9/130969358/9919446.pdfIn PDF document text
- http://kukewaxi.xoxoperformance.org/uploads/1/3/0/9/130969742/mimobet.pdfIn PDF document text
- http://sagig.studiosquid.com.au/uploads/1/3/2/7/132712207/telidobekedabon-rubonutadeve-dupadiborafaxe.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/1/0438/5210/3845/files/50690303333.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2991/4012/files/382274336.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8147/9832/files/self_efficacy_theory_bandura_1977.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4203/7150/files/the_martian_full_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/telisupuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2728/1558/files/21057456349.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7230/7875/files/28446507591.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8353/8331/files/66488595279.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6345/1560/files/convertir_de_a_word_descargar_gratis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4845/9675/files/86869834466.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6502/4412/files/aristotelico_tomista.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6717/9165/files/73743236222.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8787/8549/files/gerejax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6535/1073/files/54758658100.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_off00007058.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7058 | 5248 bytes |
SHA-256: 5c3a4fb8b50b27aaf1512caa8220f7229316fc8fd3703ae7974730ecdeb2bba7 |
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font_01_sfnt_off00008222.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8222 | 10252 bytes |
SHA-256: 1edae3b0356f827b5e4dc7d8fdbf0f08d100676e9765524ee515e8df9401e3e9 |
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