MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many of which point to compromised WordPress sites and other disposable hosting. This behavior is characteristic of a link farm used to distribute phishing lures or malware. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
Heuristics 6
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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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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://biotop-zamosc.pl/userfiles/file/84206443445.pdf
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5db7c2f542---danomadegimusasowugurexi.pdf
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16074af6d7e303---78774931048.pdf
- https://qqhanoman.com/contents//files/nekunenusipudetem.pdf
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160d9002897723---wavumopuzatotijuvix.pdf
- https://rumputhijau.com/contents//files/xoporopavaroboz.pdf
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b7ffe1b1ccd---mesufopusirulakej.pdf
- http://landroverbh.com/ckfinder/userfiles/files/vikizokulebojuwo.pdf
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16095e6069817a---67954684435.pdf
- http://kapli74.ru/upload_picture/jujezoneredepumotodilu.pdf
- http://ufnk.fr/app/webroot/files/file/15730299542.pdf
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1607efe57dd678---84506824245.pdf
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b5137133c2---57015507059.pdf
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1607025692c110---powopakobopekozitegisune.pdf
- http://www.alexgis.com/siteuploads/editorimg/file/nimuf.pdf
- https://warungmimpishio.com/contents//files/xunugojarebasizegi.pdf
- https://ceccarbotosani.ro/userfiles/file/72228472241.pdf
- http://bannails.com/fckeditor_userfiles/file/medaligebibabefefufur.pdf
- http://pathtojanna.com/userfiles/files/94373368685.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/j7c6qh5hk1baat8g6sof17h797/nokemug.pdf
- https://jooli.ru/ckfinder/userfiles/files/71128820627.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=roasted+tomato+bisque+with+fresh+tomatoes
- 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_off0000f0ff.bin4714ce4e7d2cef8676b96c5b30cc5f98ddabb1657c781141e4c0f34b3094c96d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0FF | 10988 bytes |
font_01_sfnt_off00010a6a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A6A | 16792 bytes |
font_02_sfnt_off0001227c.bincaa8ad1b37faed4a283f9de8d0715491990ffaccb97546f65cd3ae980a92e564 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1227C | 18180 bytes |
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