MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to distribute malicious content. ClamAV detected this file as Pdf.Phishing.Trojan, and ML classification strongly flagged it as malicious. The presence of multiple external URIs and a link farm heuristic suggests the primary purpose is to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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 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 http://gomsuhoangminh.com/app/webroot/uploads/files/1901809329.pdf In PDF document text
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613751fc02894---lofoxijifapivegakobavi.pdfIn PDF document text
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613a040286ca4---fekevapowizami.pdfIn PDF document text
- https://www.ftha.org/admin/ckfinder/userfiles/files/fulunebolix.pdfIn PDF document text
- http://automsystem.com/UploadFile/file/20210913234715799.pdfIn PDF document text
- http://ranahytta.com/ckfinder/userfiles/files/87077924218.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614010a5a0deb---memojereliguxiwesixopizut.pdfIn PDF document text
- https://www.afoa.org.ar/backend/ckfinder/userfiles/files/21156704504.pdfIn PDF document text
- http://bagodilovaspark.hu/userfiles/file/94608970584.pdfIn PDF document text
- http://gurolmumcu.com/userfiles/file/kowagovabunatapet.pdfIn PDF document text
- https://dzido.pl/userfiles/file/mawogag.pdfIn PDF document text
- https://10s317.com/uploads/files/202110061223197532.pdfIn PDF document text
- http://jtipartner.com/ckfinder/userfiles/files/fuvelonodatimepemivux.pdfIn PDF document text
- http://markasib.ru/ckfinder/userfiles/files/tepumubewezozaluw.pdfIn PDF document text
- https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/n558l7nuuau1tgjktjf994plm4/difuxiniwamemazovozorat.pdfIn PDF document text
- https://leganordavigliana.it/uploads/file/28391828677.pdfIn PDF document text
- http://francescofesta.it/userfiles/files/savijo.pdfIn PDF document text
- https://mgs-on-track.com/uploads/misc/files/bikanurefajuzibigu.pdfIn PDF document text
- http://sl-light.ru/design/img/upload/file/50573793447.pdfIn PDF document text
- https://highfieldhousehotel.net/nbloom/fckuploads/file/16698226126.pdfIn PDF document text
- https://simorgh.it/uploads/file/zulitebofaxudesidudoz.pdfIn PDF document text
- http://www.urbanwaterways.info/files/dupozonoguwosonos.pdfIn PDF document text
- http://www.premiumimport.nl/ckfinder/userfiles/files/borisag.pdfIn PDF document text
- https://feedproxy.google.com/~r/Gsjc/~3/5bhJmFgkeCE/uplcv?utm_term=evergreen+science+guide+class+10+pdf+free+downloadPDF link annotation
- 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_off0000b5be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5BE | 16108 bytes |
SHA-256: b6a7c94d5addff94527a26a4385ccb522a412301a13f8e560274b2bfe9d62029 |
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font_01_sfnt_off0000deee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEEE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f705.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF705 | 11104 bytes |
SHA-256: 601cf19fb28705dbdd84239e00dffc985a3882b7e60eba8ada947560914243e2 |
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