MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, several of which point to potentially compromised CMS upload directories or disposable hosting, suggesting a link farm or redirection mechanism. The presence of these links and the overall PDF structure point towards an attempt to direct users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 http://tainanrup.longi.tw/uploadfiles/files/20210903_192127_1048.pdf In PDF document text
- http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16132848ad60b8---gifokata.pdfIn PDF document text
- https://vinocastillo.hu/editor_up/5976662827.pdfIn PDF document text
- https://lesartsdansmonjardin.com/userfiles/file/20210905165704.pdfIn PDF document text
- http://weorderfood.com/uploads/files/polipegisibunufawivosepis.pdfIn PDF document text
- http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/161302c9606694---58126714503.pdfIn PDF document text
- https://gkia.org/kingkong/userfiles/files/9521494159.pdfIn PDF document text
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/11d9e46bc86c4dbaff9e0ea531758c62/pakeluwe.pdfIn PDF document text
- http://www.barbazan-debat.fr/ckfinder/userfiles/files/51460504633.pdfIn PDF document text
- http://fanti-fitness.pl/uploads/assets/file/lajebu.pdfIn PDF document text
- http://cppzone.ru/users/blogs/file/dagofebotupiv.pdfIn PDF document text
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/16137e2fd28d48---71241990766.pdfIn PDF document text
- http://cafegreenwichvillage.com/uploads/files/21498483491.pdfIn PDF document text
- http://gensugroup.com/upload/files/dadezijan.pdfIn PDF document text
- https://drnanemilk.com/tctt/sites/aaa/file/govikoxijamikekajeledub.pdfIn PDF document text
- https://insp.biz/img/file/vodoli.pdfIn PDF document text
- http://orthopaede4you.de/userfiles/file/85010788336.pdfIn PDF document text
- http://agisma.ru/files/pages/files/sukoboligog.pdfIn PDF document text
- https://bio-obst-und-gemuese.de/userfiles/file/27807713862.pdfIn PDF document text
- https://magicdiscoradio.hu/userfiles/file/56449088480.pdfIn PDF document text
- http://magic-mugs-factory.com/uploadfile/files/matawawinunevotanejanise.pdfIn PDF document text
- https://xn--pssa17sw71b.tw/upimages/files/jizuvadasuwejitufuzoxum.pdfIn PDF document text
- https://speakingparrot.com/upload/ckfinder/files/dozij.pdfIn PDF document text
- http://ch-bovi.com/upload/files/solerix.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=zenonia+4+offline+mod+apkPDF 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_off0000b4ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4BA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ccd1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCD1 | 10424 bytes |
SHA-256: b6ddc2f57d2039b46a90f7bf70998716c05dabcc40a40ca0348a26832adf4740 |
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font_02_sfnt_off0000e46c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE46C | 16320 bytes |
SHA-256: 62f0a35251229f5a6ecd0bdc368b436bf21e49c436210e2ad50f58043e93503f |
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