MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to various domains, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest a link farm or phishing operation. The ML classifier and ClamAV detection further support its malicious nature, likely as a phishing lure or a distribution point for further malware.
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://infrive.ru/uplcv?utm_term=how+to+take+a+screenshot+on+a+samsung+galaxy+s4 PDF link annotation
- http://ebrinteractive.com/userfiles/file/75498079117.pdfIn PDF document text
- http://fotografieindex.nl/images/uploads/40014940070.pdfIn PDF document text
- http://iscyber.com/userfiles/files/lanijezosuxenos.pdfIn PDF document text
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/161486bf5ab4cf---galenemosor.pdfIn PDF document text
- http://s-pack.kr/userfiles/file/20210912114517.pdfIn PDF document text
- http://zkpower.net/upload/files/dalezotaparusejejewefinab.pdfIn PDF document text
- http://stapper.de/sites/default/files/userfilesfile/24846661002.pdfIn PDF document text
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613c5fdec93a1---dexefuninusajatoxepotim.pdfIn PDF document text
- https://wedding-photos.cz/userfiles/file/31016281625.pdfIn PDF document text
- https://dom4m.lv/userfiles/files/37478731146.pdfIn PDF document text
- https://testpensija.bankai.lv/ckfinder/userfiles/files/wukigox.pdfIn PDF document text
- http://balogmihaly.hu/UserFiles/file/zuxabatunutiduzulamusaja.pdfIn PDF document text
- http://fluitec.fr/ressource/site-image/files/76181401039.pdfIn PDF document text
- http://cowmoo.org/ckfinder/userfiles/files/35320536599.pdfIn PDF document text
- https://onlineadda.organicemall.com/ckfinder/userfiles/files/tujasezavorew.pdfIn PDF document text
- https://geniodelweb.com/file/20899775574.pdfIn PDF document text
- https://raljob.com/userfiles/file/rapafazewire.pdfIn PDF document text
- https://sibservis.com/ckfinder/userfiles/files/xamowedajuda.pdfIn PDF document text
- http://kapsalonvogue.nl/files/file/zijovazunawewirufet.pdfIn PDF document text
- http://eco-versute.com/app/webroot/ckfinder/userfiles/files/67454359948.pdfIn PDF document text
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/161482b15d3971---42034366918.pdfIn PDF document text
- http://quaisetoiles.fr/img_pages/file/9293903125.pdfIn PDF document text
- http://palazzodiaz.com/userfiles/files/34718549158.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_off0000afad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFAD | 16184 bytes |
SHA-256: b85a8e088dfa2c0a6e711dbcca832f03990f8454cd04dde71ab87cfe03481234 |
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font_01_sfnt_off0000d91a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD91A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f131.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF131 | 11148 bytes |
SHA-256: 25ff65e61cfc3a19db919c7c59a0627db2e4df34c71b6cce6992577826880702 |
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