MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm. Multiple heuristics indicate the PDF contains numerous external URIs and links to disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs likely lead to further malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://chcial.ru/uplcv?utm_term=adb+for+macbook PDF link annotation
- http://thibangoto.com/app/webroot/uploads/files/wagefuvoj.pdfIn PDF document text
- http://sanruou.com/app/webroot/uploads/files/nubigamazowafuwosena.pdfIn PDF document text
- http://cgmorenanews.com.br/ckfinder/userfiles/files/lavelaserinajesugesiwebe.pdfIn PDF document text
- http://jhdjt.com/images/upload/File/8083397222.pdfIn PDF document text
- https://cyberbirddog.com/userfiles/files/93370645360.pdfIn PDF document text
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16130521a6bc48---5426467459.pdfIn PDF document text
- https://tannhatviet.vn/upload/files/59457940304.pdfIn PDF document text
- https://firsatoyun.com/calisma2/files/uploads/tozeb.pdfIn PDF document text
- http://cosmik-kinoteatr.ru/sadm_files/gikaxijo.pdfIn PDF document text
- http://helloslow.com/data/userfiles/files/7983922298.pdfIn PDF document text
- http://eastcity.hu/ufiles/file/595741995.pdfIn PDF document text
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613eca61c04f8---54527286937.pdfIn PDF document text
- http://hitechdentalhouston.com/uploads/files/zamuzuxewuwafirijagixom.pdfIn PDF document text
- http://alfavs.eu/userfiles/file/6409778482.pdfIn PDF document text
- http://sinproval.it/userfiles/files/10918017404.pdfIn PDF document text
- http://worldplastsolution.com/ckfinder/userfiles/files/juzuwawovur.pdfIn PDF document text
- http://michardardillier.com/ckfinder/userfiles/files/31477807458.pdfIn PDF document text
- https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/916ac866a731bc56b723b143138c5703/zuzumakamuvowunemagadade.pdfIn PDF document text
- https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161326e3da4d29---gigijazosimibekisoninilaj.pdfIn PDF document text
- http://kursverwaltung.fit-n-essen.ch/ckfinder/userfiles/files/nejolokitefujixamuge.pdfIn PDF document text
- http://okna-kurska.ru/page_edit/_samples/userfiles/files/xolixuligixobe.pdfIn PDF document text
- https://begili.com/uploads/image/files/raneramorupevejonifowib.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://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_off0000b97c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB97C | 16600 bytes |
SHA-256: 133a1d3f8279d8295146a76b6d699600eab970cd460ac40d081f1ce6ea56e851 |
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font_01_sfnt_off0000e45f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE45F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fc76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC76 | 10212 bytes |
SHA-256: 7f54eeda504d7098f35288ac884a31dc70ef45a4545283c85dfdec17c0fe4dda |
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