MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 7
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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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 2 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b52413c8aa8---nidujenegif.pdf In PDF document text
- http://avision-italia.com/userfiles/files/ribekadifejelefurijefatu.pdfIn PDF document text
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/160759234d560a---bekatufejanuma.pdfIn PDF document text
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/16099cc460ec7b---doduzavukedejasarala.pdfIn PDF document text
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16083f7273bbef---81440899101.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/95048266121.pdfIn PDF document text
- http://bawaconstructions.com/editorData/file/11958061034.pdfIn PDF document text
- https://aznamaste.com/ckfinder/userfiles/files/90371757956.pdfIn PDF document text
- https://burgas-remonti.com/userfiles/file/bojuxagutomabopatilokuzo.pdfIn PDF document text
- https://shieldtech.cz/ckfinder/userfiles/files/45527416042.pdfIn PDF document text
- https://adasms.fr/userfiles/file/laxuvigirim.pdfIn PDF document text
- http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab9dc5a529---27886592133.pdfIn PDF document text
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073793a02193---34556397610.pdfIn PDF document text
- https://salwangurugram.com/files/ximupeluwanodinisotulipuv.pdfIn PDF document text
- http://ketoanantamhcm.com/uploads/files/45334919235.pdfIn PDF document text
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/92uatev4sl8tfed1733kqfpgf2/papixamulakazepiga.pdfIn PDF document text
- http://northphoenixmustangs66.com/clients/4/4b/4b49b54eec06ebba3741256e9f3e6f2b/File/fukepebomigulikemupo.pdfIn PDF document text
- http://www.drivingschool-brno.cz/files/files/rogotekived.pdfIn PDF document text
- http://nhuaduongnhapkhauaz.org/upload/files/siduxifav.pdfIn PDF document text
- http://airfa.it/userfiles/file/42122701497.pdfIn PDF document text
- https://birudongker.com/contents//files/67897392685.pdfIn PDF document text
- http://albatrossmrn.com/konadnew/userfiles/file/11021400402.pdfIn PDF document text
- https://bahia-group.com/ckfinder/userfiles/files/wotikonoxogasela.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=definicion+de+leucotrienos+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_off0000b2d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2D7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cae9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAE9 | 14372 bytes |
SHA-256: f6d6e031c409485e79c009b38986d806642de6b079e04fe803768870303883d6 |
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font_02_sfnt_off0000ee35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE35 | 10552 bytes |
SHA-256: 405ff3b4289de0d3910af62f50f6c7981e0b45d3434933ba632d952e465518af |
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