MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as a phishing trojan and ML classifiers also indicated maliciousness with high confidence. Numerous embedded URLs, many pointing to potentially compromised CMS upload directories or disposable hosting, suggest a link farm designed to redirect users to malicious content. The presence of a QR code lure heuristic further supports the phishing intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://vhcvietnam.vn/ckeditor/images/files/visukizitifovugajak.pdf In PDF document text
- https://letstravelforacause.com/miet/assets/files/69039517777.pdfIn PDF document text
- https://sevenhillsgroup.net/ckfinder/userfiles/files/96273538815.pdfIn PDF document text
- https://interativacorretora.com/fotosempresa/files/mupunenujo.pdfIn PDF document text
- http://thegioixedap.net/upload/files/luraj.pdfIn PDF document text
- https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/suspkhiiqk5ppnpcc5fbmhovo7/92428191488.pdfIn PDF document text
- http://cpgny.com/userfiles/files/85477061887.pdfIn PDF document text
- http://pinxedien.net/upload/files/99143738424.pdfIn PDF document text
- http://retrievers.su/ckfinder/userfiles/files/bemumuxamixipinuj.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/678f34290e297e15518d9d0a2cb9957c/silekajepavuwezutesiked.pdfIn PDF document text
- http://wm-meyer.de/meyer/admin/editor/ckfinder/userfiles/files/89014264443.pdfIn PDF document text
- https://bonaparte.cappencms.com/templates/files/puwazebutif.pdfIn PDF document text
- http://glamour-nsk.ru/ckfinder/userfiles/files/xebufoxezovuxajokawa.pdfIn PDF document text
- http://bigdoughpizza.com/uploads/files/fivesivugitifu.pdfIn PDF document text
- http://z500.si/files/pizid.pdfIn PDF document text
- http://vitalbafitnessclub.eu/userfiles/files/7603008987.pdfIn PDF document text
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/16130e4dbb96d7---50001683885.pdfIn PDF document text
- http://itemclinicchina.com/ckupload/files/rugebigitaxo.pdfIn PDF document text
- http://familiehollander.nl/images/uploadedimages/file/66086382579.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613b4194c6d71---rapifefadofusele.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=the+conjuring+3+streaming+engPDF 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_off0000ac06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC06 | 16244 bytes |
SHA-256: 98920f260e81c812d2a2a250fdef2f1a4b1264f4ca6eb864718fa7f5761c7be8 |
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font_01_sfnt_off0000d555.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD555 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ed6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED6C | 10996 bytes |
SHA-256: c722ce3f72e52068ee2eb2489c3125933729c10e7064a14052bc6c6c8e02411b |
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