MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by a ML classifier and ClamAV, specifically flagged as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous URLs pointing to compromised WordPress sites. These links likely serve as lures for phishing attacks or to distribute further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160aa3fb9ec77e---84519938555.pdf In PDF document text
- https://terminarz.online/kosmetyczka/krakow/files/35338224949.pdfIn PDF document text
- http://flomojapan.com/upload/files/49634775675.pdfIn PDF document text
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/160d6734ab82d5---wevuzonumodutinedoma.pdfIn PDF document text
- http://ballmillfactory.com/d/files/tonirex.pdfIn PDF document text
- https://cardion.dk/gfx/fckimages/file/47064950064.pdfIn PDF document text
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160acd08d35468---wumog.pdfIn PDF document text
- https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/5e4n941etj73nnumupup7tpm4d/rotujepuzuj.pdfIn PDF document text
- https://nothingbutsafetyglasses.com/userfiles/file/jotikirefozulokisudotek.pdfIn PDF document text
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084006944e1c---wekadopobufanofirelugi.pdfIn PDF document text
- https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/ee27db93432d12b6f71a133485e79c14/69454156139.pdfIn PDF document text
- https://speak82.com/_UploadFile/Images/file/banivalozibogujiwororat.pdfIn PDF document text
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608880019af95---41143280876.pdfIn PDF document text
- https://trellisdundee.com/wp-content/plugins/super-forms/uploads/php/files/f50c9bce96620dd27d04950c165d29e6/sepefopos.pdfIn PDF document text
- http://bayernglobal.de/userVZ//file/71204501197.pdfIn PDF document text
- http://kezmosas.hu/files/file/kunavidifo.pdfIn PDF document text
- http://beepost.vn/upload/userfiles/files/15885250099.pdfIn PDF document text
- https://htchninc.com/d/files/2406435510.pdfIn PDF document text
- http://nicolalazzarotto.com/userfiles/files/85655744895.pdfIn PDF document text
- https://soudureornementalelauziere.com/upload/editor/file/vosamupit.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=earned+income+credit+2020+table+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_off0000e9ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9EF | 10976 bytes |
SHA-256: f868ed5334eb8482579bc23e8d2dd9bc205d2ab8a88aee44f1c5d2ac4eb45358 |
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font_01_sfnt_off0001031f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1031F | 17360 bytes |
SHA-256: 15b376f7d0ff8d05d48c54dae19216f0aed9cbe05b3851923d5f0f6198b91fbb |
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font_02_sfnt_off00013044.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13044 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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