MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link and a large number of external PDF links, indicating a link farm. The primary malicious URL is https://ttraff.club/pify?keyword=descargar+nckdongle+androidmtk+2.+5., which is likely used to distribute further malicious content. The document body, though heavily obfuscated, contains references to software downloads, aligning with the malicious link's apparent purpose.
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.club/pify?keyword=descargar+nckdongle+androidmtk+2.+5 In PDF document text
- http://files.hammanrealestate.net/uploads/1/3/1/3/131380008/supebukejisada.pdfIn PDF document text
- http://files.gospeltrumpet.net/uploads/1/3/0/7/130739318/a19b58.pdfIn PDF document text
- http://files.murciashoponline.com/uploads/1/3/0/9/130970001/wivilu.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/1/0433/6625/2703/files/comment_faire_un_diagramme_circulaire_sur_word.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/4458/8959/files/bangalore_central_university_syllabus_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4451/1645/files/carbonato_de_litio_bula.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7826/2689/files/vijokaxewekatevim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6074/7688/files/5853953854.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2629/2629/files/fictitious_company_names.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0122/5114/files/takesixaji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6993/1673/files/ruberelu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7916/3285/files/razezoxijinimuxoxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5366/2876/files/mapa_turistico_andalucia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1656/8482/files/wiz_khalifa_mp_3.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7909/7758/files/petojomelidadu.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000488b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x488B | 5400 bytes |
SHA-256: 2c11c523d06f3c547e333fa56a916c6cb2d2717d477d1de7caf33fd4481d00b4 |
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font_01_sfnt_off00005ad8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5AD8 | 9852 bytes |
SHA-256: 4711a5b7b96467a52e7b4680d03783eac17d735b93bd46c48b0210540b72a0fe |
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font_02_sfnt_off00007cec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CEC | 16164 bytes |
SHA-256: f469c5aa689aa4c1965481b78cfaebbf1c3ebdad2306c7067134b7b4aaa0addd |
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font_03_sfnt_off000091e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x91E5 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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