MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, but the heuristic firings strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 https://mmszke.hu/files/file/16655090640.pdf In PDF document text
- https://xn--80aanugxqi.xn--p1ai/admin/ckfinder/userfiles/files/xutekunobo.pdfIn PDF document text
- http://dekogard.net/deko/veri/_files/vevusigapaxejoxedotoxi.pdfIn PDF document text
- https://www.leasing.net.in/ckfinder/userfiles/files/nijukaxoduseda.pdfIn PDF document text
- http://modero.vn/upload/files/99211932122.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079218750e59---79749697662.pdfIn PDF document text
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/jmddibh2kriue7quofdg2903q7/bujiroluterawupu.pdfIn PDF document text
- http://kemenyseprosiklos.hu/upload/file/jubafagolezetuserepeviruj.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/161303f9397842---33968089601.pdfIn PDF document text
- https://kocarbon.vn/luutru/files/6328159594.pdfIn PDF document text
- http://apcmagon.com/userfiles/makigagewuwe.pdfIn PDF document text
- http://xn----7sbbbizu2bxaod.xn--p1ai/userfiles/file/suxebimix.pdfIn PDF document text
- http://investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/58866816907.pdfIn PDF document text
- http://lisaarkin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/poxunujuberifavetalomose.pdfIn PDF document text
- https://biblioteka-koneck.pl/ckfinder/userfiles/files/wezoxuvekironenasasiv.pdfIn PDF document text
- http://lpxs168.com/filespath/files/20210815145330.pdfIn PDF document text
- http://stimatacasa.eu/userfiles/files/8528049136.pdfIn PDF document text
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160733e4e9f4a5---13666107019.pdfIn PDF document text
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a11097866ef---32523615646.pdfIn PDF document text
- http://legalinet.eu/userfiles/files/9250173803.pdfIn PDF document text
- http://rentbucharest.net/images/userfiles/95907785002.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=dangling+participles+worksheetPDF 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_off0000c06f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC06F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d886.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD886 | 10832 bytes |
SHA-256: 5af4976981a262756a2954a17a2a9dce37e6806b9cc8edb90cac5dd7fd05d008 |
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font_02_sfnt_off0000f18f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF18F | 16240 bytes |
SHA-256: 539d88600b0a3ae9bd49d64163caf32b35c72ed7d9a5af54aacaa9395a89bd89 |
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