MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, including a known malicious redirector at 'https://ttraff.cc/wb?keyword=prelude%20to%20programming%20pdf'. The heuristic firings indicate this is a link farm designed to lead users to malicious content. The ML classifier strongly supports the malicious verdict.
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.cc/wb?keyword=prelude%20to%20programming%20pdf In PDF document text
- http://files.partlycloudypeople.org/uploads/1/3/1/4/131438002/24db78c55.pdfIn PDF document text
- http://files.thisstorybeginsinthemountains.com/uploads/1/3/2/3/132302944/1307512.pdfIn PDF document text
- http://files.kheartranchita.com/uploads/1/3/2/8/132814969/bugudodegoxojovomul.pdfIn PDF document text
- http://files.votebrizzi.com/uploads/1/3/1/6/131606819/jomitegekagiximij.pdfIn PDF document text
- http://files.officialbriarrose.com/uploads/1/3/1/6/131606674/rewidamalu.pdfIn PDF document text
- http://files.blueeyedqtpies.com/uploads/1/3/1/3/131384145/xosazunonigo_ragitifetizab_pibizel_lixarakuj.pdfIn PDF document text
- http://files.teachdailyrundown.com/uploads/1/3/2/7/132741155/seduzetitedi.pdfIn PDF document text
- http://files.theknollspeoria.com/uploads/1/3/0/9/130969235/tafuxuvakir.pdfIn PDF document text
- http://files.just-verandas.com/uploads/1/3/1/3/131379045/xobuxisedujus_wekabod.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://jajexulobuta.files.wordpress.com/2020/06/2366138730.pdfIn PDF document text
- https://ronefivuvan.files.wordpress.com/2020/07/fomotofox.pdfIn PDF document text
- https://diwegola.files.wordpress.com/2020/06/65729371021.pdfIn PDF document text
- https://rirofude.files.wordpress.com/2020/07/94912659630.pdfIn PDF document text
- https://ruxelager.files.wordpress.com/2020/07/lojawikideg.pdfIn PDF document text
- https://xezanas124748827.files.wordpress.com/2020/06/gumigare.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87294954422.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96258555683.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nisexabidubukov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vinufew.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_off00006ea1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6EA1 | 5064 bytes |
SHA-256: ed57ec0992a197ab9efd3ac14cebf1126f3f8de7f90262d2c589b930e7dcf744 |
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font_01_sfnt_off00007fbb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FBB | 10364 bytes |
SHA-256: 50d058bb3e1e780cbd17cfa7288fa9020b94f2b1144066e41ce0976cb45bb213 |
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