MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to external websites, many hosted on compromised or disposable domains, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of a link farm on compromised WordPress uploads and links with 'utm_term' parameters further supports a campaign aimed at directing users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
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 https://smidgel.ru/uplcv?utm_term=pgp+email+android PDF link annotation
- http://clinicaveterinariaalbese.eu/userfiles/files/mapatal.pdfIn PDF document text
- http://boonfagrandhome.com/user_img/files/nutotimobizeruvewebitop.pdfIn PDF document text
- http://ztkammer.at/uploads/file/73401973680.pdfIn PDF document text
- https://prestinieurope.ch/userfiles/files/jutita.pdfIn PDF document text
- https://austdoorcaocap.com/upload/files/forabasarivefur.pdfIn PDF document text
- https://4cmedica.com/ficheiros_upload/file/5659125525.pdfIn PDF document text
- https://aftaplan.com/works/peepsparty/html/upload_files/file/mibutazefepokutod.pdfIn PDF document text
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16132615e87730---bimemago.pdfIn PDF document text
- https://idroilektriki.gr/files/file/85772427212.pdfIn PDF document text
- http://bisnismedsos.com/userfiles/file/belofozinemizedexopit.pdfIn PDF document text
- http://xpeedon.net/userfiles/file/20210902053800.pdfIn PDF document text
- http://maryalo.com/userData/board/file/tabos.pdfIn PDF document text
- http://captaincook.hu/userfiles/file/43243412088.pdfIn PDF document text
- http://stylekd.ru/files/wuxejifekedodibobobewixij.pdfIn PDF document text
- http://stepasidemedical.ie/images/uploads/file/50556244174.pdfIn PDF document text
- http://digitalqwerty.com/ckfinder/userfiles/files/55600977886.pdfIn PDF document text
- http://crediramasrl.it/public/file/dekofodugedup.pdfIn PDF document text
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/1804532431e62a73ac6982cf3d3eab09/51695779454.pdfIn PDF document text
- http://108shiva.com/userfiles/file/In PDF document text
- https://10glazsikeyrosa.ru/file/20177366871.pdfIn PDF document text
- https://artedeeducar.com.br/ckfinder/userfiles/files/pumerinuxuxujewojafap.pdfIn PDF document text
- https://tranhtreo.com/images/ckeditor/files/lonawu.pdfIn PDF document text
- https://aldapa.eus/files/galeria/files/24094027074.pdfIn PDF document text
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/dea0a5d22b9b6566d7d33d687b630d50/7122459024.pdfIn PDF document text
- http://chuaphucluong.com/uploads/image/files/55238591736.pdfIn PDF document text
- http://dentalweek.eu/userfiles/files/75823468781.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_off0000b1f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1F0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ca07.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA07 | 10472 bytes |
SHA-256: 626204085aea005c7d24cf29d58e7ca99adc8c47bb68c317e957319d176af97f |
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font_02_sfnt_off0000e175.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE175 | 14436 bytes |
SHA-256: e1ffe9706738e99327d661406092c2ce89da3a98eac2c5021753c4d9196f8850 |
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