MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many URLs pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution scheme. The document body was heavily obfuscated and unreadable, providing no direct content clues.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 6
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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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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://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082df741391e---paxid.pdf
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/f90b4esuc5gou7hbte6l54183f/rekowafisuvovulaxokiva.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/p99n605hg9h8uvq7hjggpo2fnf/bovutibukazeliwafababoso.pdf
- http://smflow.in/admin/uploads/file/jevafivowinal.pdf
- https://contabil-fiscal.ro/mm/file/93029284603.pdf
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/e9ffbef368f724b3d5c8090160b1cbe4/25420117832.pdf
- http://3e-machinery.ru/app/webroot/filesfiles/tenupepotozowazikowi.pdf
- http://sparkpro.lv/content/file/wotawevojob.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/9ac0a67f86b51b2cda4d634707e6ad51/xenezipirawu.pdf
- https://accesoriosalmayor.com/images/userfiles/file/gepetomibaviwasamumur.pdf
- http://yeosingol.com/FileData/ckfinder/files/20210613_5E6354F8DA544010.pdf
- https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/27c9e701b801461123d5dc1bae069915/fezesutikojefujevak.pdf
- https://readandenjoy.ae/userfiles/files/sigejovitigoraludit.pdf
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075dbb63e506---gonuna.pdf
- https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/da7111f1fe21c00161a89d0b5280a2b9/5957233182.pdf
- http://kochamsushi.pl/UserFiles/file/medifufuxegemut.pdf
- https://ancoraeducacion.com/images/7571068121.pdf
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089e7ed90a93---joxawevomirizupafotufaw.pdf
- http://oreade-breche.fr/userfiles/file/worexun.pdf
- https://aristi-trap.com/upload/users/files/85632710096.pdf
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160ae3ce9344bc---nivuxakezawavi.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16098e2da808ba---18067106315.pdf
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073745e9eef8---misofanowefivebedesoletom.pdf
- https://polskieplytki.com/wp-content/plugins/super-forms/uploads/php/files/ea59e4b0b0cbf863c64920a16f6c9488/70997324716.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=joining+pdf+files+together
- 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_off0000d055.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD055 | 16792 bytes |
font_01_sfnt_off0000e867.bin21e9c423f807c71036fa6541d7cb9a9f9fa005e22e1915cb19810af9a8087bff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE867 | 16884 bytes |
font_02_sfnt_off0001146f.bin0e7cb04730515112bff8517861141d05b8bc8d9bc225cf2748108aef79edae11 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1146F | 10608 bytes |
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