MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links to compromised websites, suggesting a phishing or malware distribution scheme. The presence of external URIs and link farms on potentially compromised CMS uploads indicates an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/d5b7f5bc0a874f9c9de098de38bf7cd2/39005687168.pdf In PDF document text
- http://jeyadhurgatemple.com/userfiles/file/55994792973.pdfIn PDF document text
- https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/tmp/jisiw.pdfIn PDF document text
- https://srmhomes.com/images/bulk_images/files/wopolumagonibipakazop.pdfIn PDF document text
- http://charontrade.hu/data/file/zezapazenixenare.pdfIn PDF document text
- https://karpzbeldowa.pl/uploads/userfiles/files/22483525112.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1613f4d2d11a09---dujexukubemaxakogok.pdfIn PDF document text
- http://mdtrend.hu/files/file/zavuw.pdfIn PDF document text
- https://nieruchomosciprzetargi.pl/files/file/ronafepemavas.pdfIn PDF document text
- https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/d526f050cc2fcb3406f1a879d71b4b26/viresifizava.pdfIn PDF document text
- http://furnitura-syndicat.ru/ckeditor/ckfinder/core/connector/php/uploads/files/2140692499.pdfIn PDF document text
- http://tayles.com/uploaded/gamawe.pdfIn PDF document text
- https://recrut.com/files/files/33366984033.pdfIn PDF document text
- http://srtcivilnorth.com/ckeditor_file/files/warev.pdfIn PDF document text
- http://king-pro.com/userfiles/files/sapewabatapam.pdfIn PDF document text
- https://emons-verlag.com/testarea/cwsCMSlight/media/files/tiwukojudifumasapizelaj.pdfIn PDF document text
- http://terminsk.by/pics/files/84671473312.pdfIn PDF document text
- http://tw-echen.com/uploads/files/202109041656475777.pdfIn PDF document text
- http://benetalent.com/upload/files/wuxoxamevusudamapusi.pdfIn PDF document text
- https://sca-eagleegg5k.com/ckfinder/triplebuserfiles/file/89030846758.pdfIn PDF document text
- http://topbuild.net/content/xuploadimages/file/xudozumumuro.pdfIn PDF document text
- http://triatlonbizuterie.cz/sites/default/files/file/72192848182.pdfIn PDF document text
- http://abwsalisbury.com/uploads/files/26278359886.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=vpn+infinite+apkPDF 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_off0000b26d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB26D | 18388 bytes |
SHA-256: 358af99fa05e5bf23819b5d5744107c39b08638ce3d96c60df87882b50add3d8 |
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font_01_sfnt_off0000e22d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE22D | 9976 bytes |
SHA-256: 9f143bfe62fe5ea3bb070c865678947fc0dba3bc71d45755928aedde5da79a40 |
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font_02_sfnt_off0000f871.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF871 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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