MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous external URIs and links to compromised WordPress upload storage, suggesting it functions as a link farm. The primary purpose appears to be directing users to potentially malicious or phishing websites, leveraging SEO tactics to distribute its payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://laborke.ru/uplcv?utm_term=poco+x3+nfc+remove+ads PDF link annotation
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613d7c74d1209---61584721531.pdfIn PDF document text
- http://jolanyee.com/upload/files/202109120154245671.pdfIn PDF document text
- http://free-note.kr/files/fckeditor/file/3507942056134ed8dc14d4.pdfIn PDF document text
- https://dondepodemosir.com/userfiles/file/34479347295.pdfIn PDF document text
- http://reklama-v-sochi.com/ckfinder/userfiles/files/66744259468.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613adc225cedd---rolasimefiwesun.pdfIn PDF document text
- https://akrmedia.no/ckfinder/userfiles/files/84437764274.pdfIn PDF document text
- http://sorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/86106427034.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/1613c818a7a56b---35033336682.pdfIn PDF document text
- http://newkontakt.ru/userfiles/images/file/japozutinorizame.pdfIn PDF document text
- http://wittymall.com/multimedia/userfiles/file/rezolagivukezebedi.pdfIn PDF document text
- https://chuyennhakienvangvn.net/upload/files/97778613730.pdfIn PDF document text
- http://www.fishandcosolicitors.com/uploads/files/berazumovogufub.pdfIn PDF document text
- http://abwingssuffolk2.com/uploads/files/nagiwasafunimusodil.pdfIn PDF document text
- http://sokole-tps.pl/userfiles/file/gasumupunukeworufogek.pdfIn PDF document text
- http://chuaphucluong.com/uploads/image/files/mabamejovudatilab.pdfIn PDF document text
- http://jar-ted.pl/file/zipurexatosoduwa.pdfIn PDF document text
- http://z-sinpro.com/upload/files/6376048303.pdfIn PDF document text
- http://bhttourist.com/upload/fckimagesfile/kudamufurogixopavajakuzeg.pdfIn PDF document text
- http://hferrynetworks.com/FileData/ckfinder/files/20210905_5BFA4FE252A0A5E2.pdfIn PDF document text
- http://www.themixchange.com/userfiles/files/fonetofejanoridinipoxi.pdfIn PDF document text
- http://adwokaci-pila.pl/userfiles/file/wuretojigutikibivo.pdfIn PDF document text
- http://xedaptap.net/userfiles/file/rawikew.pdfIn PDF document text
- http://olech-rzeszow.pl/userfiles/file/63874221274.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_off0000dc16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC16 | 10744 bytes |
SHA-256: 84a04a0f6cbd090d13dbc7cf8884f778dc4b07a27e3f2a31e7a2407d3fb7e1d5 |
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font_01_sfnt_off0000f4e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4E0 | 20964 bytes |
SHA-256: f054cf5ae9dfcc0cd2d31d04247c65938cb7f12d1afcba4711f3eaa889be5dcc |
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font_02_sfnt_off00012b67.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B67 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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