MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
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 presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://huntic.ru/uplcv?utm_term=pixl+maths+worksheets PDF link annotation
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/aa38f2268bb79c5b2f30b5a247b46515/10805696540.pdfIn PDF document text
- http://adabaskimerkezi.com/upload/file/kumomivodasawedafiwola.pdfIn PDF document text
- http://boilerservis.ru/uploads/files/26667587489.pdfIn PDF document text
- http://antwerp-reefer-tournament.be/argt/files/7805953076.pdfIn PDF document text
- https://syntellect.ru/Repository/file/muzawaforetikem.pdfIn PDF document text
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607e42a675eb2---mutosifitipopinefoku.pdfIn PDF document text
- http://levne-pohary.cz/UserFiles/File/xawawopuxozovavujigax.pdfIn PDF document text
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c2f1b11a2cc---visobanokonixawa.pdfIn PDF document text
- https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/g1ppd183men2qn7h5hu2rqb4uq/jifovu.pdfIn PDF document text
- https://www.fangjin.org/ckfinder/userfiles/files/80966344594.pdfIn PDF document text
- http://cedarvalekansas.com/clients/875954/File/vazetive.pdfIn PDF document text
- http://mp-journal.com/media/file/mibeg.pdfIn PDF document text
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160964b0a2a31e---98589972314.pdfIn PDF document text
- http://chukgoobok.com/files/fckeditor/file/95319346390.pdfIn PDF document text
- https://hkbca.org/UploadFiles/file/20210807233003169.pdfIn PDF document text
- http://dharmapuridiocese.com/svnprojects/DHD/Source/images/files/58820601767.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161048d21841ac---weweviserutafamijozax.pdfIn PDF document text
- https://kop-trans.pl/uploads/userfiles/files/fagemovuxikawogox.pdfIn PDF document text
- https://www.kcequipment.com.au/wp-content/plugins/super-forms/uploads/php/files/465c3618daa132e8a74119b81201cfc9/kaloru.pdfIn PDF document text
- http://humanitool.ru/userfiles/file/verepupolalefulaxosopifel.pdfIn PDF document text
- https://getadoc.in/ckfinder/userfiles/files/sufalidum.pdfIn PDF document text
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077c702b1fcf---32167094405.pdfIn PDF document text
- https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/16ed5988c654d965ca85946101a5dd55/doperidijanamep.pdfIn PDF document text
- http://cooleywestbrook.com/clients/865832/File/72407720777.pdfIn PDF document text
- 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_off0000d959.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD959 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f170.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF170 | 10552 bytes |
SHA-256: bf87eb7fcc70e9cd7e7a32390ddbba20765de7018372312cb36b9759865813eb |
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font_02_sfnt_off00010995.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10995 | 18944 bytes |
SHA-256: a9f16a7c51042630d104e9b1818f650f0b390e2012ddc53da8c766cc5e072869 |
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