MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many hosted on disposable domains or compromised WordPress sites, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and link farm heuristics point towards a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://chcial.ru/uplcv?utm_term=rebound+kwame+alexander+pdf PDF link annotation
- http://bratislava.topenglish.sk/app/webroot/gallery/files/xobomekumabi.pdfIn PDF document text
- https://vipbeachhouse.com/uploads/editor/file/meserakelodi.pdfIn PDF document text
- http://www.americaninvest.net/upls/files/nujolupajuzibijaruzadej.pdfIn PDF document text
- http://b40555.handyfriendship.com/upload/files/30631181848.pdfIn PDF document text
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/847a75e0bf2280d5db947b7e963e34b3/79390826257.pdfIn PDF document text
- http://csc025.com/userfiles/file/20210901213402_az4dcm.pdfIn PDF document text
- https://inprovit.com/ckfinder/userfiles/files/83854985913.pdfIn PDF document text
- http://www.dreamstoreonline.es/ckfinder/userfiles/files/guvovebepinevowunilabodoz.pdfIn PDF document text
- http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/e0c8c65211de78b270a90c4fcdf19ec9/defenizonavogalagutewaj.pdfIn PDF document text
- http://hometextiles-consultant.com/ckfinder/userfiles/files/73053425699.pdfIn PDF document text
- https://faceless.me/userfiles/files/7197017504.pdfIn PDF document text
- http://greenglobepms.com/uploads/97194232338.pdfIn PDF document text
- http://confidence-ist.com/ckfinder/userfiles/files/37490330353.pdfIn PDF document text
- https://asiastudy.in/ckfinder/userfiles/files/49994844881.pdfIn PDF document text
- https://hankilfood.com/upfile/files/wojojikifojoviba.pdfIn PDF document text
- https://aczv.fr/userfiles/file/30658110253.pdfIn PDF document text
- http://gcsiva.com/files/userfiles/file/xomakagejanejetefodurotar.pdfIn PDF document text
- http://www.southforconstruction.com/frontend/web/ckfinder/userfiles/files/jujekajamomedaxesesemozon.pdfIn PDF document text
- http://hidramaco.com/files/files/5091168381.pdfIn PDF document text
- https://emenu.hu/editor_up/12196378066.pdfIn PDF document text
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141c5e08844c---tewigigako.pdfIn PDF document text
- http://khlongtoei-nfe.com/library/userfiles/file/filavi.pdfIn PDF document text
- 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_off0000db17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB17 | 18048 bytes |
SHA-256: d95cf89625aabf59b125f0ac42e376266d6f437015dc9ea8cc967670a8315840 |
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font_01_sfnt_off000109e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109E7 | 10868 bytes |
SHA-256: 1c890833caa57c2b32ddf69d7b9c1e875e5ed98fa3296d1a54ed39cf5e108991 |
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font_02_sfnt_off000122d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122D7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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