MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, which is a common technique for executing malicious code within PDFs. It also features numerous links pointing to compromised WordPress upload directories, indicating a link farm designed to redirect users to potentially malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/16070b28487638---91258496835.pdf In PDF document text
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/160806fad04f6b---gawibobanaxanuvinilag.pdfIn PDF document text
- https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/1af7be2194339fc2a03317d02f1a4281/numisim.pdfIn PDF document text
- https://chinatupai.com/web/js/ckfinder/userfiles/files/ranilutovozupizeri.pdfIn PDF document text
- http://allmedicus.com/userfiles/file/zafezu.pdfIn PDF document text
- http://www.celso.org/download/kebuxegowufabuxokijo.pdfIn PDF document text
- https://resonanceacteurs.nl/userfiles/file/lazelezixalotod.pdfIn PDF document text
- https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bd8494d9e74---sedasusidu.pdfIn PDF document text
- https://tecnicamistasnc.it/file/kuwovizu.pdfIn PDF document text
- http://afghansolar.com/userfiles/file/guwifuful.pdfIn PDF document text
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/v5868pun9ghvtt2jba55qmarog/kutize.pdfIn PDF document text
- http://parzenica-bialka.pl/userfiles/files/dololejujerelupesozak.pdfIn PDF document text
- https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/5c74f517dd7954f519628b570e0c84ee/wuvexopelelulakukel.pdfIn PDF document text
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16082487ed53eb---62879736430.pdfIn PDF document text
- https://thesaddlebank.com/wp-content/plugins/super-forms/uploads/php/files/9d2hrepbjjrett9j19hgopbuqo/sililaxokowef.pdfIn PDF document text
- https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/f4dee1e52a66e320a3d621cc7b94a797/wirojixamavejexaxuzakaz.pdfIn PDF document text
- http://hillsdale66ersreunion.com/clients/c/c6/c679c52642bc64dd8629b98fb95ccc77/File/gakefujuxirur.pdfIn PDF document text
- https://accesoriosalmayor.com/images/userfiles/file/80583507622.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/k377hnugc8ejk1l8gdr6vqvnq5/zogugevisilibudazudo.pdfIn PDF document text
- https://paklya.su/design/img/upload/file/73544735580.pdfIn PDF document text
- https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/78239710d1c5e336d473e57000184419/82481268960.pdfIn PDF document text
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd3f35c0ef4---69720158094.pdfIn PDF document text
- http://thepnguyentran.vn/media/ftp/file/54641684645.pdfIn PDF document text
- http://andlupa.com/userfiles/file/33547250060.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=the+chaser+short+story+pdfPDF 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_off0000eceb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECEB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000104fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104FD | 17936 bytes |
SHA-256: b36c40701105e96b3df230044cb3849922e28a1ac5e476f3ba6c969435a3ee88 |
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font_02_sfnt_off00013256.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13256 | 10552 bytes |
SHA-256: 3ef9b7158ed4a8aaf4cf7a51af9650b91759bdcfbd112f53dd2d6e30f273d372 |
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