MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is often used to exploit vulnerabilities or redirect users to malicious sites. Heuristics indicate this PDF is part of a link farm on compromised WordPress uploads and potentially disposable hosting, strongly suggesting an advance-fee scam lure. The ML classifier and ClamAV detection further confirm its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 8
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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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Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LUREDocument contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
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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://cpc-serbia.org/js/files/bezebovi.pdf
- https://learnrkbin.jugalbandiresearch.com/ckfinder/userfiles/files/vemerukipudukapujil.pdf
- http://architettoannalisatinelli.it/userfiles/files/tejiwuxokavazugen.pdf
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1613a99df3b53c---59198563990.pdf
- http://techmechengineers.com/uploads/ramumuwe.pdf
- http://flomojapan.com/upload/files/55279910598.pdf
- http://lakshimi-kaatsu.com/user_data/packages/default/imgfiles/68437924216.pdf
- http://ukkies.be/userfiles/file/kapojewelazejadidego.pdf
- http://www.mab-solutions.fr/upload/file/16134108360.pdf
- http://nhatrangpalace.net/app/webroot/upload/files/nedadomezelunivunavis.pdf
- http://imhyuk.com/imhyukeditor/userfile/file/lulekibopufixaz.pdf
- https://andrejc.si/files/file/33999774614.pdf
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f7daeb3f10---10666352652.pdf
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/2stogn607r1tttnen30g2st6d0/71162395693.pdf
- http://nuocmambason.com/upload/fckimagesfile/8edeba017fe389383c508b97f30a9fc3.pdf
- http://stellamaris.cz/userfiles/77024332827.pdf
- http://musik-fachberatung-neumarkt.de/images/uploadedimages/file/ritakibuz.pdf
- https://penzionradvanice.cz/res/file/65200936615.pdf
- https://syntellect.ru/Repository/file/86642038163.pdf
- https://sieuthigo.vn/upload/ck/files/82280201094.pdf
- http://teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/25586315266.pdf
- http://traslochimontalto.it/userfiles/files/durutarufe.pdf
- https://lnpro.in/ckfinder/userfiles/files/53621787422.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=migrate+from+one+android+phone+to+another
- 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_off0000e992.binf83dad75f9141eb97f2db24c39e8f2af52bfd1b87c3c76b4f667d39cc188e16b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE992 | 10724 bytes |
font_01_sfnt_off000101c4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101C4 | 16792 bytes |
font_02_sfnt_off000119d6.bin8cf4e72100f5b2a19034fb2009d22c91febcf72e93be3909251b6b82731aee69 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119D6 | 17620 bytes |
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