MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many of which point to compromised CMS uploads or disposable hosting, suggesting a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded JavaScript likely facilitates the redirection or download of a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://chcial.ru/uplcv?utm_term=casio+fx-570ms+manual+portugues PDF link annotation
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b72b36dcf07---15748386334.pdfIn PDF document text
- http://gamjagolla.com/uploads/files/tafubere.pdfIn PDF document text
- https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/8422b15b23e1b464633b72f321d6d1bb/8830872995.pdfIn PDF document text
- http://muszempilla.com/files/file/zovirinerukowafeti.pdfIn PDF document text
- http://lab4050.com/upload/editor/file/76522505337.pdfIn PDF document text
- http://kochamsushi.pl/UserFiles/file/37390287436.pdfIn PDF document text
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/160741e95deba5---rofibexelukosazonijujixur.pdfIn PDF document text
- https://soechi.net/userfiles/file/fawaze.pdfIn PDF document text
- https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/5e4dd943a2d91ae5781490773b1f5da6/16033567223.pdfIn PDF document text
- https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/oh5is0prj3mp8vrd9l31v5u8k7/35329412989.pdfIn PDF document text
- https://vegastel.eu/components/com_mijoshop/opencart/image/data/files/51415890158.pdfIn PDF document text
- https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e684de3165a---60172516146.pdfIn PDF document text
- https://thefencedocumentary.ca/adminfiles/file/37102908263.pdfIn PDF document text
- https://vishalahospitality.com/ckfinder/userfiles/files/xuxabeziwijur.pdfIn PDF document text
- http://benetworkingpro.com/ckfinder/userfiles/files/punarifibesotenu.pdfIn PDF document text
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cac8c002e2a---50930170807.pdfIn PDF document text
- http://herfon-machinery.com/images/ckfinder/files/20210803061502.pdfIn PDF document text
- http://schooldistrictservices.com/clients/f/f6/f6ab1571d2cdf5e569af7b76e288b17c/File/vipivadanupananis.pdfIn PDF document text
- http://perechen-jurnalov.ru/js/ckfinder/userfiles/files/43256232291.pdfIn PDF document text
- http://agro-vostok.ru/userfiles/file/jojomir.pdfIn PDF document text
- http://yngc.ru/admin/ckfinder/userfiles/files/refowejijof.pdfIn PDF document text
- http://pwmtqatar.net/userfiles/file/bavoluvukurapiwuwisipafej.pdfIn PDF document text
- https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/h508e5d0t3eg1443a7jrtnqpco/repavojutirumoki.pdfIn PDF document text
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160711c4613a13---82590638718.pdfIn PDF document text
- 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_off0000d9c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9C1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f1d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1D8 | 11276 bytes |
SHA-256: 69037bd504c1e6ee20e23f3702e1c7fbb9da494f826e1ed655ab3f38b0439bc6 |
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font_02_sfnt_off00010c71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C71 | 20404 bytes |
SHA-256: d84c9c1faff0c2ee121ae0898842f0e686a7bb496745c349e230f91583966049 |
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