MALICIOUS
286
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
This PDF document contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The presence of a fake CAPTCHA and brand impersonation (Facebook) indicates a credential phishing attempt. The ML classifier and ClamAV detection further support its malicious nature.
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://kimetupuvojum.weebly.com/uploads/1/3/2/6/132680977/janupitasufuramuxes.pdf.
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Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHADocument displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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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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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://resalured.ru/strik?utm_term=unimaid+2020+admission+list+pdf PDF link annotation
- https://kimetupuvojum.weebly.com/uploads/1/3/2/6/132680977/janupitasufuramuxes.pdfIn PDF document text
- https://dexewagumaz.weebly.com/uploads/1/3/1/4/131438443/3795625.pdfIn PDF document text
- https://gizunujidibe.weebly.com/uploads/1/3/0/8/130814387/3890044.pdfIn PDF document text
- https://vixagudidiw.weebly.com/uploads/1/3/0/7/130775505/3753583.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421217/normal_5fd9761e26b0e.pdfIn PDF document text
- https://fekakawe.weebly.com/uploads/1/3/1/4/131437222/jixamuxavuke.pdfIn PDF document text
- https://zotorakiv.weebly.com/uploads/1/3/0/7/130739478/610890.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4413977/normal_5fe3545e83e1e.pdfIn PDF document text
- https://nuzepobijane.weebly.com/uploads/1/3/4/8/134885792/datusulidatumuj.pdfIn PDF document text
- https://dajilifu.weebly.com/uploads/1/3/4/8/134891154/b722cea.pdfIn PDF document text
- https://wuliwedifa.weebly.com/uploads/1/3/4/7/134753749/nevapafuli-batarusiw-vapufanovojodix.pdfIn PDF document text
- https://xufiwelak.weebly.com/uploads/1/3/1/1/131164558/zolazubarafama_runinogudipar.pdfIn PDF document text
- https://tojabefe.weebly.com/uploads/1/3/2/3/132303019/c89a90a2a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4457561/normal_5ff171c7616d1.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4424935/normal_5ffdf5bf44684.pdfIn PDF document text
- https://rajikaluniker.weebly.com/uploads/1/3/1/3/131383998/jefijowi.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4459477/normal_6003d1cee4075.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407085/normal_60669c4ed5f1d.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000eb73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB73 | 5356 bytes |
SHA-256: 323987d03c40e4b390040ec2ccb563eb76ce8144f861acfec6f38733acc767e9 |
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font_01_sfnt_off0000fd9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD9E | 10632 bytes |
SHA-256: 8e7de834e0b994388c02d7aed4a4266d5a8aad19052e6023035df2f668db3fc8 |
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