MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, containing numerous URLs pointing to potentially compromised websites or disposable hosting, designed to redirect users. The presence of multiple external URIs and link farm heuristics strongly suggests a malicious intent to lure users to external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://istruttorecinofilo.it/userfiles/file/vadolizodito.pdf In PDF document text
- https://xcheck.vn/uploads/userfiles/file/57675796947.pdfIn PDF document text
- http://newgrids.com/userfiles/file/53640271137.pdfIn PDF document text
- http://metallpress.info/files/jurulerogamojaku.pdfIn PDF document text
- http://parentini.it/userfiles/files/57207812818.pdfIn PDF document text
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/aa4ca991b5899fed43817ddf5b36cbaf/42795232842.pdfIn PDF document text
- http://vizit-k.net/uploads/editor/files/45333982671.pdfIn PDF document text
- http://asavn.vn/uploads/userfiles/files/zezoliwarasikajaxabupog.pdfIn PDF document text
- https://greenbins.ca/ckfinder/userfiles/files/82709858598.pdfIn PDF document text
- http://superbarter.sk/media/file/samusevifiradu.pdfIn PDF document text
- https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/21c590c3151027d2119c1b8e4b6df9c1/nigotirogoxipuxeragokiguj.pdfIn PDF document text
- https://hogozaty.com/ckfinder/userfiles/files/39410270272.pdfIn PDF document text
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/161339d83326d7---zebaduxapisil.pdfIn PDF document text
- https://conexusinternational.com/ckfinder/userfiles/file/kosumuzagalezizulujefupa.pdfIn PDF document text
- http://tianlanip.com/filespath/files/20210909185137.pdfIn PDF document text
- http://fujieshubao.com/zk/UploadFile/file/2021091314553373499.pdfIn PDF document text
- http://adhunikjewellers.com/ckfinder/userfiles/files/96807591472.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16138377e18881---bixevozokurawepedegav.pdfIn PDF document text
- https://footballsod.com/images/ck-uploads/files/zejuxuzo.pdfIn PDF document text
- https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d564d84a33---gidajufan.pdfIn PDF document text
- https://ontogepszerviz.hu/editor_up/kogijosafanepebow.pdfIn PDF document text
- http://sithome.com/upfiles/file/20210913222416.pdfIn PDF document text
- http://www.civilhospitalpalampur.in/img/uploads/files/1873071744.pdfIn PDF document text
- http://md-servicios.com/userfiles/file/fitenozepumabuzisito.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=smule+vip+free+download+2021PDF 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_off0000e121.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE121 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f933.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF933 | 18684 bytes |
SHA-256: 587bed898fdf03f1ef61766ce2c2f5c86bf713b9896612f81b7ce49521d6a26c |
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font_02_sfnt_off0001299f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1299F | 11016 bytes |
SHA-256: 22aa4b004bae8cb6a58700fb80958e8b702ec3fc6f857066dbb216eee390da75 |
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