MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous external URIs pointing to compromised WordPress sites and other disposable hosting, suggesting a link farm designed to redirect users. The presence of these links indicates an attempt to direct users to malicious content, likely for phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://allytemp.ru/uplcv?utm_term=how+to+remove+page+numbers+from+pdf PDF link annotation
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/16143b2dede81f---mosijede.pdfIn PDF document text
- https://produktybhp.pl/pliki_user/File/93798944043.pdfIn PDF document text
- http://richmore.kr/uploadfile/fckeditor/file/judusewafelatowuvaj.pdfIn PDF document text
- http://www.flamanville-76.fr/upload/file/jovonubopakivatenuze.pdfIn PDF document text
- https://napraforgohotel.hu/upload/file/35332885707.pdfIn PDF document text
- https://siltri.com/fck_upload/file/masinadalur.pdfIn PDF document text
- http://jpind.pl/userfiles/file/wokexetof.pdfIn PDF document text
- http://coomargroup.com/ckfinder/userfiles/files/86520932336.pdfIn PDF document text
- http://mh-gartengestaltung.de/userfiles/file/fukezowaroxusazuritebufu.pdfIn PDF document text
- http://stisk.com/file/lenazozamukodutepuwevo.pdfIn PDF document text
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147e15d53010---zijivelofokujosunuz.pdfIn PDF document text
- http://celyroknaterase.sk/editor_uploads/system/files/90894565606.pdfIn PDF document text
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16130054f17791---gewagixawod.pdfIn PDF document text
- http://elai.kz/upload/2021/09files/210917111357126649cgxph.pdfIn PDF document text
- https://ximatinhdongnai.com/app/webroot/files/images/pages/files/pugogelolog.pdfIn PDF document text
- https://aitalk.vn/upload/files/nibuwefijarexajajejeti.pdfIn PDF document text
- http://dsfly.com/uploads/files/17176830314.pdfIn PDF document text
- https://gitteszoneklinik.dk/ckfinder/userfiles/files/xodirajeb.pdfIn PDF document text
- https://healthlantern.com/ckeditor/ckfinder/userfiles/files/46103618941.pdfIn PDF document text
- http://www.asap-recruitment.net/upload/file/pepekisezaxudanobim.pdfIn PDF document text
- https://goez3.com/10005001208290177/ckfinder/userfiles/files/teluwusowuzifezusipon.pdfIn PDF document text
- http://biolabsrl.org/userfiles/files/5378638592.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_off0000d60e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD60E | 11084 bytes |
SHA-256: fa82dd129157699e922eb5f4db74b3cfa941b110e9275f2bcc8a298fcbbdf66c |
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font_01_sfnt_off0000ef8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF8B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001079d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1079D | 17896 bytes |
SHA-256: 47ef26ec4e78377d4a7eab652cd3fce1121c6da5ec2807c6a8de817f0ce3d1d9 |
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