MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file is designed as a phishing lure, presenting itself as a document but containing a malicious redirector link. The PDF_IMAGE_LURE heuristic indicates it's an image-only document with an action trigger, and the PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms it points to known malicious infrastructure. The embedded URL https://ttraff.cc/wb?keyword=histologia%20ross%207ma%20edicion%20pdf%20descargar is the primary indicator of malicious intent, likely leading to further compromise.
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-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 2 image(s), only 0 text block(s), carries a click-outward action, and is only 35 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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.cc/wb?keyword=histologia%20ross%207ma%20edicion%20pdf%20descargar In PDF document text
- http://files.rooferselgin.com/uploads/1/3/0/7/130739510/86dbabe95977.pdfIn PDF document text
- http://files.absipartnership.org/uploads/1/3/2/8/132814552/lojajuvis.pdfIn PDF document text
- http://files.advancedanaerobics.com/uploads/1/3/0/9/130969555/davam.pdfIn PDF document text
- http://files.betterhealthyouthyoga.com/uploads/1/3/1/8/131856125/6165013.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://lebugojava.files.wordpress.com/2020/07/38803970307.pdfIn PDF document text
- https://nemejaranola.files.wordpress.com/2020/07/vinomiwonimipusukezivuse.pdfIn PDF document text
- https://foregemod.files.wordpress.com/2020/07/37793735616.pdfIn PDF document text
- https://mosufazu.files.wordpress.com/2020/06/87236440300.pdfIn PDF document text
- https://zexitisi.files.wordpress.com/2020/07/15539546161.pdfIn PDF document text
- https://tezivage.files.wordpress.com/2020/06/7248168688.pdfIn PDF document text
- https://gosetufan.files.wordpress.com/2020/07/36498773654.pdfIn PDF document text
- https://xuxosasi.files.wordpress.com/2020/06/duwubadanuremadus.pdfIn PDF document text
- https://pibofir.files.wordpress.com/2020/07/44344134440.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sekokejeninidifowabofu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9803/8679/files/rumaxobovujebinogoro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9870/9918/files/86083662455.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/botolewapaniwid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93861148098.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7589/5447/files/vupagi.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_off00005586.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5586 | 5304 bytes |
SHA-256: 64dc99b3317845c55fef78f4df50003614e615d05f76eefb5b23da7fff17638b |
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font_01_sfnt_off00006776.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6776 | 7776 bytes |
SHA-256: bd72dcbc8b2da5c344bea76dd513657fa968a6058a1069bfd241af2b993aae2b |
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