MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document functions as a link farm, containing numerous embedded URLs pointing to compromised websites, likely serving as a distribution point for phishing or malware. The presence of multiple links on disposable hosting and compromised CMS uploads reinforces this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092e97b21169---tawipaxotigimanagazobi.pdf In PDF document text
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/c48153fb245f77f49dd1b89f8215c5e3/xatikujirujekuj.pdfIn PDF document text
- http://avandcie-automation.com/ckfinder/userfiles/files/54017041785.pdfIn PDF document text
- http://duszek-lasu.pl/userfiles/file/rutulubesazapexadatinedo.pdfIn PDF document text
- http://www.proyecpapel.es/ckfinder/userfiles/files/59334468024.pdfIn PDF document text
- http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a6b902d535d---jijaxav.pdfIn PDF document text
- http://gtlmarinefuel.com/userfiles/file/44916742128.pdfIn PDF document text
- http://cathyknightwaite.com/ckfinder/userfiles/files/72948887123.pdfIn PDF document text
- http://archissimo.eu/userfiles/files/xufotikomiloxojefe.pdfIn PDF document text
- https://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/naafmgb2bhrgg402e6rt4uifc0/78615271302.pdfIn PDF document text
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/16085fbe2c40f0---46790140623.pdfIn PDF document text
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d54e16f6ee---xitamo.pdfIn PDF document text
- http://tvoirostov.ru/ckfinder/userfiles/files/faregowe.pdfIn PDF document text
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070768a857e3---bogizutixuboporeze.pdfIn PDF document text
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/160dbdbd28b10a---rakoviku.pdfIn PDF document text
- http://refinerlink.com/userfiles/file/davisisoxomigugupuguxawo.pdfIn PDF document text
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3d10b54c19---fabazopinukoz.pdfIn PDF document text
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095d3caf1357---25376596695.pdfIn PDF document text
- https://pharmnet.cz/ckfiles/files/files/nupunuvodexot.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160772681e6929---48093901404.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a5a3feb547---56259341995.pdfIn PDF document text
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085a4ca2936a---bifarolevomenunogamo.pdfIn PDF document text
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/8ed04b7593074430be26fbf950371812/migudobaguzavinimezixewux.pdfIn PDF document text
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/20e10dfcd2c0f5a3806ef32da6e75f12/35923440918.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=art+therapy+colouring+book+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_off0000d044.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD044 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e85b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE85B | 11156 bytes |
SHA-256: f39f65450c1450d84bde6cdb4e1ab71217f2141f440b31eb99ad11252cba6fe8 |
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font_02_sfnt_off000101ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101EF | 17568 bytes |
SHA-256: 2dcac5beb39e53d1b7cb8f77842a79d10e6b7fe14ec6ac9d03ef87ea39af0bc5 |
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