MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms or disposable domains. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL analysis strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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 http://koryosushi.com/uploads/files/zedapuxitopizatixevuk.pdf In PDF document text
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/284c016f1435aafcbf893386a8b290fe/fopizizopuzexosa.pdfIn PDF document text
- https://esperanzadeavila.com/fotos/file/48180776442.pdfIn PDF document text
- http://photo-preiss.com/upload_files/files/3872267957.pdfIn PDF document text
- http://modelseafarm.com/kweb/ckfinder/userfiles/files/79097552500.pdfIn PDF document text
- https://v-rshine.com/upload/images/files/55508969233.pdfIn PDF document text
- http://szao-spb.ru/images/news/file/xagasomilobagosi.pdfIn PDF document text
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aeee682ad6---72143604537.pdfIn PDF document text
- http://nuraski.pl/wsg/userfiles/lijonale.pdfIn PDF document text
- https://najlepsze-w-polsce.pl/uploads/dabopivud.pdfIn PDF document text
- http://noahjohnsonsark.com/clients/e/ef/ef24418f2336b9480f3353ee42fa3f58/File/xadosobejamerozabed.pdfIn PDF document text
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608478046bc13---fubapibe.pdfIn PDF document text
- http://akcjonariusz.com/UserFiles/file/xuzazitenajuvunut.pdfIn PDF document text
- http://ototavandosemesi.com/resimler/file/wajaxopalor.pdfIn PDF document text
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b33189c649d---gawufupo.pdfIn PDF document text
- http://wadirumshootingstars.com/userfiles/file///pinezokumivadomuxutor.pdfIn PDF document text
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160783ee946eeb---pobitiwejonidejirozegibog.pdfIn PDF document text
- http://dianacb.cz/userfiles/file/sezomegazediwabu.pdfIn PDF document text
- http://kovove-ploty-brany-zabradli.cz/UserFiles/File/73645836917.pdfIn PDF document text
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8585032992---65907129193.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=fireboy+and+water+4PDF link annotation
- 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_off0000d7d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7D6 | 10420 bytes |
SHA-256: d4b5ab5d14d69e37b07576856920239e9d002a4d5040306d6573cc3457b1fc56 |
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font_01_sfnt_off0000efa2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFA2 | 17452 bytes |
SHA-256: 50abc5d757594dd506037695368e315b880e795387fd7de9bf6fee0372d1fad3 |
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font_02_sfnt_off00011cc6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CC6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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