MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple heuristics indicating it is a link farm and SEO redirector, designed to lure users with a phishing pretext. The ML classifier and ClamAV detection strongly suggest malicious intent. The primary IOC is a compromised WordPress upload link, likely used to host the malicious PDF or a subsequent payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9772
Heuristics 7
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160838ef07c08e---xasisasawigu.pdf In PDF document text
- http://am-assets.com/aom/magnolia/userfiles/file/jejudevimesilixagosub.pdfIn PDF document text
- https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/adt13748b1qlvi4n8k9r5nag97/22244803151.pdfIn PDF document text
- http://wsm.hk/images/files/vogopigewesu.pdfIn PDF document text
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/a0na2cpd4aui9er8qv2gvff4ts/ginagibesibovutizuderor.pdfIn PDF document text
- https://ludifrance.fr/userfiles/file/8427683078.pdfIn PDF document text
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/323d4aa92c53b578979d1fd3de1aa240/zoterimorixafateresa.pdfIn PDF document text
- http://greathorserider.com/ckfinder/userfiles/files/72025629979.pdfIn PDF document text
- https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/5140469248d14ae95dc4fb43cd05d2fd/witikes.pdfIn PDF document text
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073215e9fa67---46547649720.pdfIn PDF document text
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b6dead95cd7---xexizakizonadi.pdfIn PDF document text
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/17db34ab66723fc45c28ba279b325b09/mibalapotetuko.pdfIn PDF document text
- http://bidhichand.org/sahodyatarntaran/userfiles/file/45153555040.pdfIn PDF document text
- https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/cef9469bdb9571a71a8f8d49ee5e72b2/2540393084.pdfIn PDF document text
- http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c28badb8e4e---jibawenon.pdfIn PDF document text
- https://yucekalipmakina.com/tsrm1/img/userfiles/file/lekojonokumefaxadinap.pdfIn PDF document text
- http://cosmikkino.ru/sadm_files/nitakovotusasefenisixax.pdfIn PDF document text
- https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/6e9ccb9b0ed829cc7c5658a70ec008df/63461227122.pdfIn PDF document text
- https://arizonalightingsales.com/wp-content/plugins/super-forms/uploads/php/files/a7085964d9caaeb83a21b67fafd15073/26718364401.pdfIn PDF document text
- https://christembassybarking.org/wp-content/plugins/super-forms/uploads/php/files/66cd4bf6385eb2336c13b795c0d15b2c/77486441077.pdfIn PDF document text
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/ie8pa27oljg364qdht9ilmc324/1836189112.pdfIn PDF document text
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160c49f6564793---85866884826.pdfIn PDF document text
- http://bartuceviri.com/userfiles/file/96929505848.pdfIn PDF document text
- https://iamtimeshare.com/userfiles/file/48304655552.pdfIn PDF document text
- https://iphonerepairservice.nl/app/webroot/files/userfiles/files/fewisovan.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=30+second+to+mars+chordPDF 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_off0002fb1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2FB1E | 17816 bytes |
SHA-256: a1d9a506c59cc1d8c87b62d4cb8d20e3edda5367a45d4cb5063ae7c5ba25b987 |
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font_01_sfnt_off000328c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x328C5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000340dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x340DC | 10692 bytes |
SHA-256: fc648cf8e4a99ad4a1646e71dde6a6a6ea04f1d12954a5cb80cb320795d83df3 |
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