MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript, which is often used to redirect users to malicious websites. The heuristics indicate a link farm pointing to compromised WordPress upload storage and disposable hosting, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://wuxihemei.com/ckfinder/userfiles/files/20210606_035315.pdf
- http://baybayankaauamo.com/clients/c/c9/c9e0f772d4a556598cfa564a27137582/File/xiwububerofevopadidal.pdf
- http://maduraicaterers.com/app/webroot/js/ckfinder/userfiles/files/totuzumimofeka.pdf
- http://jjmcp.jp/userfiles/Image/file/45005502251.pdf
- https://evenimentecastel.ro/wp-content/plugins/super-forms/uploads/php/files/isprlfnkpi5e3lb6qt8s3dafvp/kolasefo.pdf
- https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/099svo4cf37b05r9p5vjd302k6/mebazalo.pdf
- http://allprintusa.com/admin/images/file/75684499015.pdf
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/1qi8mrhhsts0llpk3mi9i068m6/30425808991.pdf
- https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/cb09866192de952b8c3e9879fc4fd5a8/mamijivuzikipakirim.pdf
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1d7748feb---lolikixidifabowuna.pdf
- http://ms-beauty.com/ckfinder/userfiles/files/bikurexiganuzovarewuv.pdf
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bcc4af9e440---41070079133.pdf
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/96cdb9bd7c70c8c6dbb025cfcf33afc6/79393222737.pdf
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160aa34efa4ab9---66102263727.pdf
- http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7a7eb44b44---budelifediwawaru.pdf
- http://cec-intl.ru/app/webroot/files/file/wobumadaj.pdf
- https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/6cebdaab12f6d40cb61e4fa29b1a5487/katozifixuzot.pdf
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160ab4c20b9c57---86918634686.pdf
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/j837moqha89tfvn4va1n2vp1gg/vuvuvori.pdf
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607602bfc16a3---17765742370.pdf
- http://abwingssuffolk2.com/uploads/files/42006108461.pdf
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/poss0gfolthugm3jlot4sb9v77/jomuxaboxofimevipavuneke.pdf
- http://abnicum.ru/files/file/71968632978.pdf
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160a3638e6591c---38495879388.pdf
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e546781025---dukinovawajomu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=suspension+meaning+in+gujarati
- 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_off0000e718.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE718 | 16792 bytes |
font_01_sfnt_off0000ff2a.bin561e8a987920a5d05076d791811e24b450f5e96e3b3b0edb62fd508c75e1817a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF2A | 17604 bytes |
font_02_sfnt_off00012cc9.bin38e5f03e63731cfacb672bbda990738191a2a84ffcf3bc688a040ec82483477b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CC9 | 10856 bytes |
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