MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple compromised or suspicious domains, likely for phishing or malware distribution. The use of 'utm_term=free+downloadable+pdf+books' suggests a lure to trick users into clicking malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://tea-ra.com/user_data/upload/save_image/files/54960178720.pdf In PDF document text
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613b5a1657f89---30590287966.pdfIn PDF document text
- http://centrons.com/uploaded/file/559479553613cfd24db7b3.pdfIn PDF document text
- https://wonwon.taipei/photo/file/zuwakaxabipidimowu.pdfIn PDF document text
- http://kibbkw.com/uploads/file/14268092178.pdfIn PDF document text
- https://kapokcmassage.com/uploads/files/202109021219219626.pdfIn PDF document text
- https://accesoriosalmayor.com/images/userfiles/file/tebagenuluwokemaxasu.pdfIn PDF document text
- http://td-mg.ru/uploads/files/36989858952.pdfIn PDF document text
- http://smflow.in/admin/uploads/file/26871282405.pdfIn PDF document text
- http://irk-yoga.ru/upload/files/63309659473.pdfIn PDF document text
- http://viswinkelindex.nl/images/uploads/mawedogolevu.pdfIn PDF document text
- https://bhopalliteraturefestival.com/mpsdp/uploads/files/1662027331.pdfIn PDF document text
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/16141402a23a7d---vexegotuvegoduzomirovevo.pdfIn PDF document text
- http://avision-italia.com/userfiles/files/14254886973.pdfIn PDF document text
- http://boracayg.com/FileData/ckfinder/files/20210905_452DCD1D459E51C6.pdfIn PDF document text
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613d4eaa99c7d---radig.pdfIn PDF document text
- https://familienbilstrup.dk/ckfinder/userfiles/files/97002154964.pdfIn PDF document text
- https://koparieshorvathbusz.hu/files/file/vejodev.pdfIn PDF document text
- https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/161525ec2bb72d---saseleladoduzagogukemupa.pdfIn PDF document text
- http://studioaba.net/userfiles/files/kezemakonepugim.pdfIn PDF document text
- http://mega.kz/media/upload/files/53382868400.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=free+downloadable+pdf+booksPDF 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_off0000acfa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xACFA | 10596 bytes |
SHA-256: 93af4de52b51db0962a8a4044d41509d676580fabcbd353dbb0e949b537ab04f |
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font_01_sfnt_off0000c521.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC521 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000dd33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD33 | 15464 bytes |
SHA-256: b6c1c7a41f649113ba47947777b1dcb3a3521c898fc40424da738aeda6e3ac5d |
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