MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or are part of a link farm, suggesting it's used to redirect users to potentially harmful content. The embedded JavaScript is likely responsible for initiating these redirects or further malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 7
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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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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://zssadkowice.pl/pliki/filud.pdf
- http://e-motyle.natura2000.pl/imgturysta/files/dutuza.pdf
- http://autoscuolecasetta.it/userfiles/files/27946448292.pdf
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/e8018279fd5ffeafeefccae164dca1bd/63969828017.pdf
- http://php-lounge.de/userfiles/file/lodurugowifafola.pdf
- https://inprovitargentina.com/ckfinder/userfiles/files/finuxexeparewivarorise.pdf
- http://lingeriedediva.com/UploadFile/file/2021090810034473499.pdf
- http://bibikid.ru/upload/58972581620.pdf
- http://carshopm.com/js/upload/files/kilopimofurimev.pdf
- https://hobbyschuurtje-webwinkel.be/images/userfiles/file/vexofotewoworumeji.pdf
- http://spiregene.com/image/files/20210911_005328.pdf
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/161336f1496778---31935664468.pdf
- http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140a75a28b98---jororigoginapewolep.pdf
- http://hoanggiaphatstone.com/upload/files/22843000582.pdf
- https://intersensor.ro/v2011/Files/fck_upload/file/kebosabobajizopuzudabe.pdf
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/1u6ke1egvs57mqtv7hei902ma2/8065744310.pdf
- https://ikomsolutions.com/admin/userfiles/file/jodujafinel.pdf
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16131db2412c8d---mijajekirawamilufiwurubo.pdf
- https://xn--80aaijz0c.xn--p1ai/ckfinder/userfiles/files/69190314059.pdf
- http://machinegroup.ru/img/outer/files/medebimonilaz.pdf
- http://mineraux-et-lithotherapie.fr/ckeditor/upload/files/regufivox.pdf
- https://tootooair.com/FileData/ckfinder/files/20210923_7DF5478B38740695.pdf
- http://ourdesign.hk/ckfinder/userfiles/files/tomujilowowasejilotiz.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=h96+max+x3+price+in+bangladesh
- 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_off0000b4e1.bina36e425e5f1de12450f3465a5f0af59b98973d5693505a633ba2930f6e8a0aed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4E1 | 17716 bytes |
font_01_sfnt_off0000e297.binb31ec72f9adb5cc678e274a56c4c49ab35a6ce3881d662f80cb0873a36cd331c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE297 | 11484 bytes |
font_02_sfnt_off0000fd03.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD03 | 16792 bytes |
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