MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document containing embedded JavaScript, which is often used to exploit vulnerabilities or redirect users. The PDF also features a link farm pointing to compromised WordPress upload storage and other disposable hosting, indicating a phishing or malicious content distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent.
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 https://bisnismedsos.com/userfiles/file/19944086536.pdf
- http://findmecakes.com/userfiles/files/donudepuwaje.pdf
- http://xn--80an2aej.xn--p1ai/up/file/90003729345.pdf
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a5cc331096a---10772724874.pdf
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a8807cf3e09---25491694398.pdf
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/b648cb5cff36fd813227b5c71761b0f7/97076380628.pdf
- https://habibitours.net/ckfinder/userfiles/files/16580950143.pdf
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081354a276f9---88803104387.pdf
- http://stacjaregeneracja.pl/userfiles/file/58788098298.pdf
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608e5f8abd93b---57484554118.pdf
- http://hitecds.com/userfiles/file/jimifaw.pdf
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160730bf9527e0---vevasasesiwaxi.pdf
- http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1609c6803f1d2d---ripaluxulul.pdf
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160bbd091c0627---85017237884.pdf
- http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160987d8e854e8---7211814484.pdf
- https://parklanehotel.asia/userfiles/file/97266431300.pdf
- http://malopolskiszlakwinny.pl/upload/File/bopebuvajipidux.pdf
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d7d165e4bc---ribapogagawizabavalesow.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/118dbce3f45b91fb1efd2b6fb5e8bdd9/bokisogabita.pdf
- https://noble-program.site/js/ckfinder/userfiles/files/28238912834.pdf
- https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075a3a8e9428---75021748763.pdf
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072b7ebde19e---watomesiwos.pdf
- http://ateliergermain.net/sites/default/files/file/pepopu.pdf
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/16079d49f96694---datepovumedezimigepazuj.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=nursery+rhymes+songs+lyrics+and+actions
- 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_off0000e6de.binacef1a51342ef90829d6365a8e755564622d630456ba5593469421296d719a99 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6DE | 11008 bytes |
font_01_sfnt_off00010021.binbb68014e6fb55874f3b6ec93f6cf48f53971146d5c6771846b7664afba0b22bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10021 | 17016 bytes |
font_02_sfnt_off00012c7a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C7A | 16792 bytes |
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