MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. It contains numerous embedded URLs that form a link farm, directing users to potentially compromised websites. The presence of these links suggests an attempt to facilitate phishing or distribute further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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=how+many+zeros+in+1+quadrillion PDF link annotation
- http://daiichihousing.net/uploads/news_file/18800213530.pdfIn PDF document text
- http://kuppersbusch.hu/userfiles/files/zikajemebawaropa.pdfIn PDF document text
- http://area100impianti.it/userfiles/files/56816971735.pdfIn PDF document text
- http://okeefesreef.com/ckfinder/userfiles/files/92510860778.pdfIn PDF document text
- http://worldofpacifiers.com/editor_uploads/system/files/dapulatuxo.pdfIn PDF document text
- https://tectrongim.com/uploads/files/gosarowikixitexedutano.pdfIn PDF document text
- http://vipnovini.bg/root/f/uploads/files/82439601638.pdfIn PDF document text
- http://backupcenters.com/userfiles/file/gadibuzejebinozovomeb.pdfIn PDF document text
- http://bibliotekaszamocin.pl/img/upload/files/dajiluxo.pdfIn PDF document text
- http://thebankcardservice.com/uploads/files/bexoxazikaraso.pdfIn PDF document text
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/4e3e2f0e315eea11d06fabcfbce02101/41161215492.pdfIn PDF document text
- https://infosantiere.ro/userfiles/file/62580294421.pdfIn PDF document text
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/scvu1m7t265t9k6imk9pdu7ih4/wijum.pdfIn PDF document text
- http://xn--pr3b03lcdvwu9dpynqkc.com/DATA/file/20210905123151.pdfIn PDF document text
- http://ilovechardonnayhills.com/userimages/paxeka.pdfIn PDF document text
- https://unifor975.ca/userfiles/file/xuzif.pdfIn PDF document text
- http://huerural.com/uploads/image/files/1810764679.pdfIn PDF document text
- http://saatgaamkansarasamaj.com/admin/uploads/files/xatuvododekapakemi.pdfIn PDF document text
- https://relaxbotanika.cz/ckfinder/userfiles/files/puzudipezukexulok.pdfIn PDF document text
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613833678ea0d---kibatugodepikukefonewegel.pdfIn PDF document text
- https://www.rt9.rspo.org/ckfinder/userfiles/files/64089316742.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_off0000b6c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB6C5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cedc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEDC | 10860 bytes |
SHA-256: de61cbafa85a0115619d923b946341b301cbb308a56f3152a346e3227062c474 |
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font_02_sfnt_off0000e7c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7C9 | 18276 bytes |
SHA-256: f8765f123c4d7c795af6fe4fd9b9358f7dc92964a96fb9724bc709d15fc62e60 |
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