MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous URLs, many of which point to compromised WordPress sites acting as a link farm. This suggests the PDF is designed to lure users to external sites, likely for phishing or to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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 https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/160d642488614a---rugukopaxikuti.pdf
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cf226e56758---49885784450.pdf
- http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/160861ddce06c4---tufuvime.pdf
- https://condicionamentofisico.com/arquivos/file/98449878403.pdf
- http://agiusfuneraldirectors.com/files/file/nujibavinakujebunozawiriw.pdf
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/247aqk8nknqfm6ui4ajffotdu4/tenolavuga.pdf
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7ac4b15bba---33555740104.pdf
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/i104686ua89fsjpqvlhruafpi5/17053121155.pdf
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/a3532c49cf3e6e6e16656d06d1cacd61/10961701472.pdf
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160ca09a829bef---mobuwo.pdf
- http://mishelik.ru/userfiles/file/fodufifajosotesodudurejov.pdf
- https://taevlingar.se/images/pages/file/53903328403.pdf
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b188198a52---fawisaba.pdf
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606fc8d4be9ae---tawusepez.pdf
- https://ubranni.com/uploader/files/79011130820.pdf
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/3b71ab40841843d7c35b6e110ecfbbca/68512869191.pdf
- https://primewestelectrical.com/wp-content/plugins/super-forms/uploads/php/files/2c7629fde7b0e8d8ef04bfec18909de4/55570031461.pdf
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086ff1c19312---xenakegix.pdf
- http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/fnj45url8d1f9bdf9plgqsa1b4/fijemawojasoxolojus.pdf
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/160975a559548a---kalomefevujotux.pdf
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160714660e4361---26358453131.pdf
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d97da60378---bovobum.pdf
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/a4cc2fdd064403f2e693bd7496afc719/pesexapadirebumasabodufa.pdf
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f92f8ee51b---5820770053.pdf
- https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/vs44p6htceut7fdgpjk6lndnv3/dorivapovagitok.pdf
- http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210504131022634014gszeap.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=list+of+deep+sea+ports+in+the+world
- 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_off0000f161.bin363e9ce69f7fa66a7d2452b691398fb4751fb5f0809df0ebd5a4d4b79442fdeb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF161 | 10636 bytes |
font_01_sfnt_off000109ba.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109BA | 16792 bytes |
font_02_sfnt_off000121cc.bin12a376218529b81eb64847dd54baed24ece2c31f0cdf2d81b22fe2fcbc44c155 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121CC | 18704 bytes |
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