MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious. It contains a link farm pointing to compromised WordPress upload storage, suggesting an attempt to host malicious content or phishing pages. The ClamAV detection further confirms its malicious nature, likely as a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161380be1130f6---vikinu.pdf In PDF document text
- https://cicadit.ro/UserFiles/file/vinilutuwukasiw.pdfIn PDF document text
- http://www.masozilina.sk/ckfinder/userfiles/files/negonakivuxi.pdfIn PDF document text
- https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/444ebe920744104266636479672654d3/45041086250.pdfIn PDF document text
- http://ciaomamma.hu/editor_up/49698518799.pdfIn PDF document text
- http://megalaserasia.com/upload///gobalerunelax.pdfIn PDF document text
- https://sicurezzaips.it/uploads/file/votonu.pdfIn PDF document text
- http://ballarioarchitetti.eu/userfiles/files/47451991975.pdfIn PDF document text
- http://cnpair.com/userfiles/file/xedujotebirelinuja.pdfIn PDF document text
- http://arabstina.com/ckfinder/userfiles/files/55846892589.pdfIn PDF document text
- https://congtydaihai.com/upload/files/jojumawawokuzarolixiwe.pdfIn PDF document text
- http://sys-svinding.dk/userfiles/file/65354033335.pdfIn PDF document text
- http://ajtoablakcentrum.com/_user/file/28631991191.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612f8f077e87b---2986584160.pdfIn PDF document text
- https://www.hmgfinance.com/ckfinder/userfiles/files/gasip.pdfIn PDF document text
- https://sunwayhk.com/louis/STARKGROUP/ckfinder/userfiles/files/54619864066.pdfIn PDF document text
- http://alpes-de-haute-provence.proximeo.com/ckfinder/userfiles/files/xibumewajumilufetaji.pdfIn PDF document text
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/161385051aa84d---sejipolok.pdfIn PDF document text
- https://dorfadvertising.com/ckfinder/userfiles/files/30581285813.pdfIn PDF document text
- http://tsrmvolontari.it/userfiles/files/rorarezedejibije.pdfIn PDF document text
- http://cana.vn/uploads/userfiles/file/12370726941.pdfIn PDF document text
- https://alhurwallpaper.com/Files/files/baturoxawekibet.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=delete+other+storage+androidPDF 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_off0000b5da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5DA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cdec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDEC | 17372 bytes |
SHA-256: 23644a5191ab5dadff5b6c1cf73257ed486ee72b55b83c10a0d4e703f903ee9c |
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font_02_sfnt_off0000fab4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAB4 | 10528 bytes |
SHA-256: 51d99eb1a8fb0debc42508fafed802f073de17d8979a533c093f367086ac8d09 |
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