MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous links, many pointing to compromised WordPress upload directories, suggesting a link farm designed to host or redirect to malicious content. While no scripts were directly extracted, the presence of embedded URLs and the nature of the heuristics strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9800
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://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/a0d160fcee5207c5862cf1b5cc46a6e0/85298303139.pdf In PDF document text
- http://bannermaul.com/userData/board/file/vazatibowi.pdfIn PDF document text
- http://falegnameriacastiglione.it/userfiles/files/morodawapuliwibawixa.pdfIn PDF document text
- http://sake2metustin.com/uploads/files/43556633498.pdfIn PDF document text
- https://wilocom.ro/ckfinder/userfiles/files/46505132750.pdfIn PDF document text
- http://inimtrento.it/userfiles/files/dalifutosan.pdfIn PDF document text
- http://www.la-rocca.pl/app/webroot/files/files/79300801177.pdfIn PDF document text
- http://candientuvibra.com/images/file/ranimatefoxusupatiti.pdfIn PDF document text
- http://ecompletecontact.com/ckfinder/userfiles/files/gifunerigexuw.pdfIn PDF document text
- http://remaining-mc.de/userfiles/file/gibevitefuvut.pdfIn PDF document text
- http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/e7ffdb1099179014d07a3c005dc04a8c/11540682095.pdfIn PDF document text
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2e9df88f71---tuduwofesixeguzozig.pdfIn PDF document text
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/e05c6eb255c9e00cf8106ff23805d8a0/jaxubaxidokegasiwa.pdfIn PDF document text
- http://scholl2021.com/clients/1/19/19bca4f76d5065ca3bffbfc1c67e7925/File/222687622.pdfIn PDF document text
- http://ceskylakros.cz/userfiles/file/3794699428.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609873baf3445---47499450998.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cb62054de9c---7096445442.pdfIn PDF document text
- https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/c4864134b9b4216ae775306f1fdf52b6/tomonidizuroxuro.pdfIn PDF document text
- http://kengosushionlineorder.com/uploads/files/puwesijifikumut.pdfIn PDF document text
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/5eef39187b12b1b08ad7b7ba217531ae/beralivif.pdfIn PDF document text
- http://xn----9sbkvfu2aex3d.xn--p1ai/ckfinder/userfiles/files/figuditijujuzabekofazo.pdfIn PDF document text
- http://clevio.biz/fckUpload/file/95135605266.pdfIn PDF document text
- https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/vhk3vmtjg8nkstbovtjtq3poe0/14125818245.pdfIn PDF document text
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608de7b665f1c---74956571627.pdfIn PDF document text
- https://rlvanstory.com/wp-content/plugins/super-forms/uploads/php/files/d2b391ddadc046109c96674377badfdd/xewofeno.pdfIn PDF document text
- http://nashcentralfalcon.com/clients/d/d5/d5bea9c86035def548a020f7371d19fe/File/7435745232.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=calendar+2018+indonesia+pdfPDF 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_off000113c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113C7 | 10928 bytes |
SHA-256: e0a4575504fd046c622d9bc63b6b76222dac2217b7e54fbedd13b1c8d7ee61ed |
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font_01_sfnt_off00012d3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D3E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00014550.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14550 | 20972 bytes |
SHA-256: 89cce247db7f7e6a784e0cc16821189527bdda02ce30f076ba33d6bcfbd54ff9 |
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