MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many pointing to disposable domains, indicating a link farm likely used for SEO manipulation or to distribute further malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://yafferge.ru/strik?utm_term=stern%2527s+introductory+plant+biology+13th+edition In PDF document text
- http://relax35.ru/wafivowa2v0fn.pdfIn PDF document text
- http://nituzovido.getenjoyment.net/solved_mcqs_of_accounting_and_finance.pdfIn PDF document text
- http://gixitetopes.scienceontheweb.net/93925337559.pdfIn PDF document text
- https://pekafajifazudo.weebly.com/uploads/1/3/4/4/134478446/44748f12d6afc.pdfIn PDF document text
- https://lodobimamavudug.weebly.com/uploads/1/3/4/3/134306091/6331298.pdfIn PDF document text
- http://boldly-grow.com/63901393377s99dk.pdfIn PDF document text
- https://cdn.sqhk.co/rirexiwudag/hiifhBa/lixuvegeluzawamorugo.pdfIn PDF document text
- https://cdn.sqhk.co/mekewufi/jAkmibg/gelefabiwizit.pdfIn PDF document text
- http://eslife.pro/wasuselekajanewoxoxategoxot1c.pdfIn PDF document text
- https://cdn.sqhk.co/xodakebebit/cQ9S5gd/vizumoxotaxobadubititogu.pdfIn PDF document text
- http://organicnu.info/61799167244ygs99.pdfIn PDF document text
- http://zujewap.mygamesonline.org/xarinuposimapazewanevoz.pdfIn PDF document text
- https://pujuwofox.weebly.com/uploads/1/3/4/8/134882524/1640903.pdfIn PDF document text
- http://zibikudupe.mywebcommunity.org/feedback_amplifiers_lecture_notes.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/3f190334-7f07-44c2-a501-fc7185f136ef/what_is_the_best_color_for_living_room.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5cfb5bb9-8082-4f0e-ad7b-c28ec155e30a/35629340823.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/66783a47-961c-4f17-804e-18a02ed06419/4736853624.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bc7ff1ce-d87f-4dc4-8869-f3063e293983/da_de_la_revolucin_mexicana_en_ingls.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1d24969d-651d-49ad-83a6-94d55a3ab972/4e_players_handbook_3.pdfIn PDF document text
- http://kegigija.atwebpages.com/getenabirirukuxe.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cb9d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB9D | 5932 bytes |
SHA-256: 201b8b650c6a03371588b80e0b03c0d7f1b56f7f2b35e29350b13845d73210e1 |
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font_01_sfnt_off0000dfd4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFD4 | 10376 bytes |
SHA-256: f9b517b34d2557ba3d3aa03308772d2088176f8092d0d2bcd7d9e4679a046572 |
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font_02_sfnt_off00010317.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10317 | 16460 bytes |
SHA-256: e6494f95ff21925517cbfd4b78f27ee40afabff6cfa09c7f2a91b3883c620929 |
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