MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to external websites, many of which are hosted on disposable domains or compromised CMS uploads, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest a phishing or trojan payload delivery. The presence of multiple external URIs and link farm heuristics points towards an attempt to exploit users through deceptive links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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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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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 http://deleersnijder-bocaege.be/images/file/62772509816.pdf In PDF document text
- http://marinda.ru/pics/images/file/goxedunajinepala.pdfIn PDF document text
- http://sistarelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/56489154880.pdfIn PDF document text
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/1612ef1b800cb5---49548003071.pdfIn PDF document text
- http://yuhao-tech.com/userfiles/file/12715581638.pdfIn PDF document text
- https://www.gullyracing.it/admin/ckfinder/userfiles/files/xajokurifoxiwagur.pdfIn PDF document text
- http://ifaistos.reality.gr/~triantaf/images/file/didobonadovemagosixutugu.pdfIn PDF document text
- http://terrietanaka.com/library/files/33862554236.pdfIn PDF document text
- http://www.cpiequipos.com/assets/images/user_files/files/zosudigixukaxe.pdfIn PDF document text
- http://decamiones.com/userfiles/file/45736967401.pdfIn PDF document text
- http://szentimresiklos.hu/upload/file/6026259577.pdfIn PDF document text
- http://ruresept.ru/files/file/48887404306.pdfIn PDF document text
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/qavc71645kd14qithbpg0328qr/52019138498.pdfIn PDF document text
- https://akonis.ch/userfiles/files/75038968378.pdfIn PDF document text
- https://vanphongphamhienluong.com/upload/files/33340335108.pdfIn PDF document text
- http://language-coach.pl/uploads/files/ralojepulazo.pdfIn PDF document text
- http://vibestedu.com/_UploadFile/Images/file/talovimade.pdfIn PDF document text
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16130be31b8060---jajulexikew.pdfIn PDF document text
- https://ganport.pl/userfiles/file/17710392484.pdfIn PDF document text
- http://wowbond.com/upload/Fckeditor/file/bemepiwowun.pdfIn PDF document text
- http://ybshajiang.com/userfiles/file/2021-09-13/210913235043987787vzgpofhdledu.pdfIn PDF document text
- https://iringmalaysia.com/ckfinder/userfiles/files/95764465005.pdfIn PDF document text
- http://midospa.com/upload/files/zaduxujudi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=the+wit+and+wisdom+of+mark+twain+pdfPDF 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_off0000df34.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF34 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f746.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF746 | 18316 bytes |
SHA-256: 0349ca8873c0dc9015ff9823f2c7bd23b34f6902b411915701dc4b34ab1b2608 |
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font_02_sfnt_off000126f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126F0 | 10860 bytes |
SHA-256: 1ca50fd44002fbe9c63008912a554fcbdb4488f86ae721a85e5a97fc731df40b |
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