MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt.
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://articolo17.it/siti//usr/foto/files/61638692977.pdf In PDF document text
- http://thestarbusan.net/FileData/ckfinder/files/20210815_4107B0F932652E7D.pdfIn PDF document text
- http://xn--80aafbladvtgxneccoge3bt.xn--p1ai/pict/file/29691416845.pdfIn PDF document text
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086053ccf4ce---xigupokitonosafi.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16098c2c35285c---fusoxaxafadikez.pdfIn PDF document text
- https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/2llmb40oif71h8qqqjqhts4c7h/80184504653.pdfIn PDF document text
- http://studiodabo.eu/userfiles/files/gorawuviwulavedakasa.pdfIn PDF document text
- https://faktxeber.com/resimler/files/parodigozubipob.pdfIn PDF document text
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160b3d291b6223---xudutadalu.pdfIn PDF document text
- https://www.rosebankprimary.co.za/inc/ckfinder/userfiles/files/gizifumivomubopov.pdfIn PDF document text
- http://getem.pl/files/file/20508096898.pdfIn PDF document text
- http://arniestribu.com/campannas/file/kivir.pdfIn PDF document text
- http://kkagro.com/media/images/upload/file/lukuvenemufudixusunuxu.pdfIn PDF document text
- http://rilta.net/userfiles/files/fofuxidi.pdfIn PDF document text
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e433d8093c9---96055289719.pdfIn PDF document text
- https://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/1ikosgq80ssk2snokln26e3e71/48780821775.pdfIn PDF document text
- http://hkt-optics.com/hkt/images/userfiles/file/69725963610.pdfIn PDF document text
- http://heizler.hu/files/file/43351029980.pdfIn PDF document text
- http://coyada.com/up_images/up_images/3778247951.pdfIn PDF document text
- https://bahispesinde.com/gnc/veri/_files/vugamusexuguxikosagoj.pdfIn PDF document text
- http://gmtshipping.com/attachment/file/jafamitanimulasuzaga.pdfIn PDF document text
- https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/9u08gqq62477srqtsthvla39a1/sinajilupedimepod.pdfIn PDF document text
- http://tincorner.vn/uploads/files/nadiluwalokisuw.pdfIn PDF document text
- https://kawanmto.com/contents//files/gexeviragosoni.pdfIn PDF document text
- https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/5267138bde0d5afab617894651e776a6/nutuxifemejijimetekolun.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=idioms+and+phrases+pdf+with+examplesPDF 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_off0000c1bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1BF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d9d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9D6 | 10900 bytes |
SHA-256: e1cbf7eeb08cc9430e6679080daa91774627e2600ceb2684c7498a44a5a1c80b |
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font_02_sfnt_off0000f2df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2DF | 16744 bytes |
SHA-256: c21f9d59a473896fa6706d5343fa1a1fb55a809378937d93730bfacdcbbfdc33 |
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