MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of external URIs and link farms points towards a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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://ekachaiguitarist.com/ckfinder/userfiles/files/53507010072.pdf In PDF document text
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1610e8749d4487---9958063081.pdfIn PDF document text
- http://ellenia3.eu/userfiles/files/kebezimimitow.pdfIn PDF document text
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/f2m4cd4sfkvte0oeskonsvj8ka/75420712523.pdfIn PDF document text
- http://computerdoki.hu/user/file/1410858252.pdfIn PDF document text
- http://chi-kara.net/userfiles/file/wapidazevoselojunozi.pdfIn PDF document text
- http://phantasos.org/userfiles/file/24544674063.pdfIn PDF document text
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/6f33165747f49aabebd45a026888a976/kitobizajaxibolewejafedu.pdfIn PDF document text
- http://shreejians.com/userfiles/file/10048867509.pdfIn PDF document text
- https://njshore.drinkpoint.com/uploads/files/mebuvulawe.pdfIn PDF document text
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbc7225d074---38511082222.pdfIn PDF document text
- https://www.bistro-e.com/wp-content/plugins/formcraft/file-upload/server/content/files/160714c6b7ea88---togodobazavud.pdfIn PDF document text
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/3aaf4090eefe5344978ffb99ef757be2/vikimuzivoxizage.pdfIn PDF document text
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/160744b954107e---vezukitozefo.pdfIn PDF document text
- https://repetitorebi.ge/userfiles/files/65037081539.pdfIn PDF document text
- http://mybed.tw/uploads//files/202108031051544446.pdfIn PDF document text
- https://nucamsa.es/userfiles/files/fozobidudasokil.pdfIn PDF document text
- http://dobrejaja.com/Upload/file/10586152856.pdfIn PDF document text
- http://aostavet.it/userfiles/files/wanuwidusoxideve.pdfIn PDF document text
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/n4ra2on3369ch1u686p490hi4t/83669224176.pdfIn PDF document text
- http://ajisushionline.com/uploads/files/52552404595.pdfIn PDF document text
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/ifg3qgl465jmtgh3dsh1kgmbg5/23955078713.pdfIn PDF document text
- http://bilafafafa.com/shopadmin/upload/files/78305243050.pdfIn PDF document text
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160749890937db---mamofajativezokukekaba.pdfIn PDF document text
- http://7166867.ru/ckfinder/userfiles/files/lozobazosopamufer.pdfIn PDF document text
- http://designklasse.de/ckfinder/userfiles/files/fevisofogemexituxudom.pdfIn PDF document text
- https://www.stnedu.com/ckfinder/upload/files/61509626559.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=up+scholarship+form+2019+pdf+downloadPDF 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_off0000f30a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF30A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010b1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B1C | 18732 bytes |
SHA-256: 9435009ef9040135ae5e25aba326054dc9dadab3b6aa42832e5395b4dceffb6e |
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font_02_sfnt_off00013b44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B44 | 11208 bytes |
SHA-256: 838495569f3cff16c7316232360cc66fdfc35a5048bc9f47a3eb5430a6b69fa8 |
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