MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a deceptive lure, presenting itself as a question paper download, to trick users into clicking a link. This link redirects to malicious infrastructure, specifically `https://ttraff.ru/wb?keyword=b.com%201st%20year%20question%20paper%202016%20pdf%20download`, which is part of a link farm designed to distribute malware. The ML classifier strongly indicated maliciousness, and the presence of numerous SEO-optimized links further supports a malicious intent.
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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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.ru/wb?keyword=b.com%201st%20year%20question%20paper%202016%20pdf%20download In PDF document text
- http://files.simonbarnesillustration.com/uploads/1/3/0/7/130776250/862ba9ae.pdfIn PDF document text
- http://files.copanelloentertainment.com/uploads/1/3/0/7/130738806/6839011.pdfIn PDF document text
- http://files.mayahabian.com/uploads/1/3/1/3/131398573/2858664.pdfIn PDF document text
- http://files.laurelschoolofdance.com/uploads/1/3/1/4/131483154/174860.pdfIn PDF document text
- http://files.coragulachouse.com/uploads/1/3/1/4/131438528/manoxobibususi.pdfIn PDF document text
- http://files.jaldridgephoto.com/uploads/1/3/1/4/131411411/9146998.pdfIn PDF document text
- http://files.bbluntsheabutter.shop/uploads/1/3/1/3/131383018/bajof.pdfIn PDF document text
- http://files.shizokukaratedo.com/uploads/1/3/1/6/131636852/9541914.pdfIn PDF document text
- http://files.framemysore.org/uploads/1/3/1/3/131384789/7349004.pdfIn PDF document text
- http://files.lauracathleen.com/uploads/1/3/0/7/130739328/1827369.pdfIn PDF document text
- http://files.lindaqphotography.com/uploads/1/3/0/8/130814076/xotofosemitijozil.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://robepeler.files.wordpress.com/2020/06/kinulofoweziwarotifuze.pdfIn PDF document text
- https://garuwade.files.wordpress.com/2020/06/nabojudawutijuk.pdfIn PDF document text
- https://bekakum.files.wordpress.com/2020/06/15196061853.pdfIn PDF document text
- https://gumuzodo.files.wordpress.com/2020/07/zirugugatonodas.pdfIn PDF document text
- https://vemupuki.files.wordpress.com/2020/07/397159413.pdfIn PDF document text
- https://kakakudob.files.wordpress.com/2020/06/pizuzajis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74535711799.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zafitizeruzu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zevimija.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73930450062.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_off0000f2d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2D5 | 6064 bytes |
SHA-256: 87c5fd7f5c562691db055a7d4538559febca134e6a90003648e61c20a9488331 |
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font_01_sfnt_off00010779.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10779 | 10436 bytes |
SHA-256: 522b7d6d4f4a38e067a6f61b9df49153686a7aff47f866bf6a02b7ec855f98ec |
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