MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious. It contains numerous links, many pointing to disposable hosting or compromised CMS uploads, indicating a link farm designed to redirect users to potentially harmful content. The ClamAV detection further supports its malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://rchs1964.com/clients/5/58/580abc73d3aac4ea3a2bdd7c75327783/File/mumuniduzil.pdf
- http://geostudio.eu/userfiles/files/25542807681.pdf
- http://apexnepaltravel.com/userfiles/file/peputemexamibidoni.pdf
- https://cokhivietuc.com/img-vietuc/files/rufekolemavuluzito.pdf
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6db08dd8e---xumafaj.pdf
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1611ca709d973a---vibekefanabigejad.pdf
- http://aarogyamedico.com/userfiles/file/bevaregonevademuzo.pdf
- http://e-sheremet.com/img/42825763386.pdf
- http://cherryontop.pl/upload/fotki/file/loberabulovuwabagagifigak.pdf
- http://jinshi66.com/uploadfiles/files/diropipimoni.pdf
- https://prospr.fr/ckfinder/userfiles/files/vetugamavopajutesod.pdf
- https://kermanrooz.com/img/files/96975858796.pdf
- http://xn--9w3b11kh5l.com/ckupload/files/tagotigizuwobunitisa.pdf
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609c56a6aa3b0---98231539063.pdf
- https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/5037dbfab40904b24bb4ff535eed4d2f/36427049068.pdf
- http://bularz-auto.pl/images/userfiles/file/59447169446.pdf
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160cbea5665ed5---59688745189.pdf
- http://indianspringhomes.net/userfiles/files/jevebekexulani.pdf
- http://calhi1974.com/clients/46234/File/62093849100.pdf
- http://getampedmag.com/ckfinder/userfiles/files/sagavetoxefujaxi.pdf
- http://elitacasa.it/images/file/1788245665.pdf
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/jc10b34ol68ssgc2naid0qebh1/25320972397.pdf
- https://loctra.net/userfiles/file/98072811801.pdf
- http://eastcity.hu/ufiles/file/73474445102.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=4+factors+of+production+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fa7b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA7B | 16792 bytes |
font_01_sfnt_off0001128d.bin7e9297faa824f3c6679b7565bea6f863d18a1ba9070de8e900a529b8e00fd28b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1128D | 18428 bytes |
font_02_sfnt_off00014232.bin55048f1dbb434a0348177c7364e7ec44bd119a213759a2a1f765e90a67ae6622 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14232 | 10516 bytes |
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