MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1204.002 Malicious Link
This PDF file was flagged by multiple critical heuristics, including brand-impersonation credential phishing and a link farm on disposable hosting. The ML classifier also strongly indicated maliciousness. The document contains numerous external links, with one specifically impersonating Yahoo and leading to a redirector, suggesting a phishing attempt or a lure for further malicious activity. No scripts were extracted, but the overall structure and link farm indicate a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 8
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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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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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Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://nupinegudoxaxu.weebly.com/uploads/1/3/5/3/135350485/da0d52468b06bfe.pdf.
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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External URI info PDF_URIPDF contains an external URL action
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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://baarspo.ru/wix?keyword=holt+mcdougal+physics+chapter+5+review+answers PDF link annotation
- https://nupinegudoxaxu.weebly.com/uploads/1/3/5/3/135350485/da0d52468b06bfe.pdfIn PDF document text
- https://cdn.sqhk.co/sinemajud/iZsdggP/slice_pizza_delivery_near_you.pdfIn PDF document text
- https://cdn.sqhk.co/wetotuluxe/MaAihzS/mugofafo.pdfIn PDF document text
- https://xapenivivafozeb.weebly.com/uploads/1/3/1/3/131379266/8772640.pdfIn PDF document text
- https://zenanewexakidop.weebly.com/uploads/1/3/5/3/135310893/jumefojaxurijoj_vonazu_fisaregusipuvix.pdfIn PDF document text
- https://sijalafad.weebly.com/uploads/1/3/4/8/134887162/rofenu.pdfIn PDF document text
- https://mokakabatedi.weebly.com/uploads/1/3/5/3/135300589/tamub-suxazibi-xegafofip-lamevaf.pdfIn PDF document text
- https://wuzakadebetes.weebly.com/uploads/1/3/0/8/130814976/sinukamelep.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://repefewuvu.epizy.com/benzoyl_peroxide_chemical_information.pdfIn PDF document text
- http://toreruvevow.epizy.com/pojizotetukasuxor.pdfIn PDF document text
- http://vemevusakeke.epizy.com/vevuzetoxurutufowuludo.pdfIn PDF document text
- http://rajuleneto.epizy.com/touch_vpn_chrome_free.pdfIn PDF document text
- http://xoletim.epizy.com/bufogefiba.pdfIn PDF document text
- http://baromar.epizy.com/84194677078.pdfIn PDF document text
- http://mamitepibo.epizy.com/shatta_wale_song_melissa_video.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_off00010516.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10516 | 5828 bytes |
SHA-256: d71576ca3ce27689802e369a4ef3636cd745612c30de7b41f3c20388ac0ea307 |
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font_01_sfnt_off000118d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118D9 | 11052 bytes |
SHA-256: 2f71375db5299c00e672ef23d7058c6e437ff71c9a0c6878ff00d99f202694d9 |
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