MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is a PDF identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, suggesting a link farm designed to lure users to malicious content. The presence of external URI heuristics and link farm indicators strongly points towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://philabc.ru/uplcv?utm_term=how+to+block+all+sms+on+android PDF link annotation
- http://mrcubezpieczenia.pl/app/webroot/media/files/61758237235.pdfIn PDF document text
- http://ydtmuhendislik.com/ckfinder/userfiles/files/lilonabikajabesusasenew.pdfIn PDF document text
- http://ailizia.com/userfiles/3581436317.pdfIn PDF document text
- http://nanoservice.cz/upload/file/dojukili.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/quvejoslkt5aioh2c9lt9af9i1/tegot.pdfIn PDF document text
- http://szjg.hu/images/file/jufiv.pdfIn PDF document text
- http://studiocastigli.eu/userfiles/files/bunepibem.pdfIn PDF document text
- http://goteneplast.se/files/images/file/gifoz.pdfIn PDF document text
- http://dlzhrjd.com/images/uploadfile/files/dekopabikoxiti.pdfIn PDF document text
- https://jackinthegym.com/uploads/files/202109010837582123.pdfIn PDF document text
- https://wilocom.ro/ckfinder/userfiles/files/3815714066.pdfIn PDF document text
- http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613e1ac774ff6---36526242725.pdfIn PDF document text
- https://chaletsuenodesol.de/files/jerexonivorusiwugaguwudo.pdfIn PDF document text
- http://guchen.ru/d/files/9166729297.pdfIn PDF document text
- http://gammatradings.com/userfiles/file/67977500708.pdfIn PDF document text
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/052d30f57ad331b7a6bdbe34906de74e/kuxazigelemamovozoxi.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/500eb72f78529c4f27dc327df4be1137/muzobelota.pdfIn PDF document text
- https://egf.tw/test2/images/file/264074754.pdfIn PDF document text
- https://xn--fiqa735be48e.com/upload/files/govijawavigarege.pdfIn PDF document text
- https://hk-delight.com/UploadFiles/file/raxodojogekaduji.pdfIn PDF document text
- https://www.padanguparduotuve.lt/ckfinder/userfiles/files/31249888617.pdfIn PDF document text
- http://facilitymanagementassociates.com/survey/userfiles/files/71688723840.pdfIn PDF document text
- http://huarui-bio.com/upload/files/31803721534.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_off0000dfa1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFA1 | 18800 bytes |
SHA-256: 5c1fff94b256295bc35c36ba5240b4ea8d7078f875ab1913038e711caa826b27 |
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font_01_sfnt_off00011017.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11017 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001282e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1282E | 10708 bytes |
SHA-256: 30a681d2e8dfabf166c617db4dcb3d9b6b808756022dbed4e3d92d65360b900b |
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