MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, with heuristics indicating it functions as a link farm and potentially a QR code lure. Multiple unknown reputation URLs were extracted, suggesting a distribution or phishing campaign. The document body is heavily obfuscated, preventing a clear understanding of its direct content, but the overall structure and heuristic firings point to a malicious intent to redirect users to further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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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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://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a21fc26246---53816302126.pdf In PDF document text
- http://impactpluslearning.com/ckfinder/userfiles/files/favipafolamaxu.pdfIn PDF document text
- https://cepatdaftargroup2.com/contents/files/masukufaxodukenilevebu.pdfIn PDF document text
- http://klusjesindex.nl/images/uploads/jalemizamoletoketapijev.pdfIn PDF document text
- http://frankifoto.com/uploads/pages/files/wadigirutorar.pdfIn PDF document text
- http://olgapolyakova.de/files/files/sazevepabewewi.pdfIn PDF document text
- https://dananeye.com/uploads/files/202109071706584964.pdfIn PDF document text
- https://matraci.info/UserFiles/File/32079335534.pdfIn PDF document text
- https://kligi.viart.lt/ckfinder/userfiles/files/najenabe.pdfIn PDF document text
- http://aokunoil.com/ckfinder/userfiles/files/39772097208.pdfIn PDF document text
- http://gianenricofabro.com/userfiles/files/liwonizodenuwilibupe.pdfIn PDF document text
- https://jeevandeepspecialcare.com/ckeditor/ckfinder/userfiles/files/jukexi.pdfIn PDF document text
- https://it-remarketing.pl/app/webroot/media/files/dogowawot.pdfIn PDF document text
- http://skiflogistics.ru/userfiles/file/3954132879.pdfIn PDF document text
- https://adminico.nl/userfiles/file/64978097997.pdfIn PDF document text
- http://mrtowing.ca/Lawyers/userfiles/file/penilanexunizebinedim.pdfIn PDF document text
- http://ms2oke.com/contents/files/65762432353.pdfIn PDF document text
- https://www.whoamiandwhyamihere.com/ckfinder/userfiles/files/40877468931.pdfIn PDF document text
- http://drsuthichai.com/userfiles/files/vovidabogenaxoji.pdfIn PDF document text
- http://kurskodkb.ru/page_edit/_samples/userfiles/files/47869893178.pdfIn PDF document text
- http://drsuthichai.com/userfiles/files/dimazoweg.pdfIn PDF document text
- https://ewdel.cz/ckfinder/userfiles/files/baxefalur.pdfIn PDF document text
- https://hanomanberjaya.com/contents/files/36693175733.pdfIn PDF document text
- http://aleshashop.net/uploaded_files/userfiles/files/lalapenivizifarisi.pdfIn PDF document text
- http://manavpublicschool.org/manav/userfiles/file/fafifewisukozomubikugus.pdfIn PDF document text
- https://prettygreekvillas.com/admin/fckeditor/editor/filemanager/connectofile/89542064296.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=how+to+scan+a+qr+code+that%27s+on+your+iphone+screenPDF 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_off0000d839.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD839 | 18064 bytes |
SHA-256: 81643fe7dbae5d110576adbef8a1b0d66f917bd617dc27b292815506d4df68d8 |
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font_01_sfnt_off000106de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106DE | 11036 bytes |
SHA-256: dccb511aa9156af7258223949e85795d12d2106fa3b144b4089a4321e19f13c2 |
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font_02_sfnt_off00012064.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12064 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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