MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to potentially compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a high volume of links on varied hosts, suggesting an attempt to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9923
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://goldmustang.ru/files/files/kegobanedosadi.pdf
- http://alarmy-kamery24.pl/userfiles/file/15406040705.pdf
- https://dotcomtravelegypt.com/userfiles/files/mazukef.pdf
- https://southafricapools.com/contents//files/81718600457.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095f0f880f56---minefanatilolozita.pdf
- http://beiwendq.com/userfiles/file/dumasevof.pdf
- http://aucoindeshalles.fr/menu/file/liraxunuture.pdf
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609c776ec517e---24268591748.pdf
- https://myphi.biz/nbloom/fckuploads/file/52974125186.pdf
- https://konferencii.ru/js/ckfinder/userfiles/files/tezonusema.pdf
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/c1ca0f98e6a91758b0e32125c7649bb4/kumimogarawepamez.pdf
- http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/dereunfh7j46e2r9l6usp5t5q6/77493859625.pdf
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/102d6f17c5ac5b58e18722d2c8d1c2ff/17084647226.pdf
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/95dbca1913c0631f47d499171ca4c0dd/82843751202.pdf
- http://nuovojob.com/userfiles/files/62845255596.pdf
- https://sandzak.best/wp-content/plugins/super-forms/uploads/php/files/8b1a642adc38cd8807850d0e198502d3/45997702386.pdf
- https://www.temsilcifirsatlari.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082363e5610d---zifugoku.pdf
- http://travelci.ru/ckfinder/userfiles/files/tajesu.pdf
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/23fd542e769272662f0bbd4e1a359581/96963979158.pdf
- https://stijsr.com/userfiles/file/59531280419.pdf
- https://orldoc.ch/wp-content/plugins/super-forms/uploads/php/files/i1qa0pufhdktujbbsrijd7fr24/23569405675.pdf
- https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1609dd13dafee4---44069177243.pdf
- http://richmore.kr/uploadfile/fckeditor/file/sujugemov.pdf
- http://dynamic1984.com/user_file/file/37723924519.pdf
- http://littlepearlbooks.in/data/eimages/file/71047271986.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=an+introduction+to+reliability+and+maintainability+engineering+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000129c1.bincbbd0717bd9d5d2a22a5972e505aa789dcaa9b627546a18d68bf9582ba3e39f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129C1 | 17508 bytes |
font_01_sfnt_off000157bc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x157BC | 16792 bytes |
font_02_sfnt_off00016fd3.bin53fbf211c4a97f48d7832f12b88c77b668e3675bc7ef0b6068ba2fe1d19caa93 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16FD3 | 11132 bytes |
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