MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as a phishing trojan and ML classifiers indicated maliciousness. It contains numerous URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and link farm heuristics strongly indicates a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://archism.ru/uplcv?utm_term=player+pro+android PDF link annotation
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16140c3778fd67---jijifafexadijonilol.pdfIn PDF document text
- https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/4720f856493af2f06dbff2fb54f14553/gonojemugixawopikokinok.pdfIn PDF document text
- http://mp-hd.de/data/aktualnosci_imgs/file/mujavevitibikedorediju.pdfIn PDF document text
- http://topstec.com/d/files/penigede.pdfIn PDF document text
- http://llux.vn/uploads/files/zebanagi.pdfIn PDF document text
- http://muzycznescyzoryki.pl/userfiles/file/somosadazufugexepuwagowa.pdfIn PDF document text
- http://alrehabourhome.com/userfiles/files/mozojaguravabuliveb.pdfIn PDF document text
- http://rothemtour.com/FileData/ckfinder/files/20210904_21F3932A3A8D257A.pdfIn PDF document text
- https://kuzeyilac.com/resimler/files/31123053327.pdfIn PDF document text
- http://secretsocietygroup.com/temp/vinney/HTML/userfiles/file/89873859336.pdfIn PDF document text
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16140ba6e6712c---bogesuxozafapalevikesovo.pdfIn PDF document text
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131d26aafd52---ziwoxeduxafe.pdfIn PDF document text
- https://www.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/76857988389.pdfIn PDF document text
- http://pileshoppen.dk/userfiles/file/kijodinagi.pdfIn PDF document text
- http://weilandvloeren.nl/fckimages/10085374948.pdfIn PDF document text
- http://benrassam.com/uploads/files/80738540409.pdfIn PDF document text
- https://perfecthospital.org/FCKeditor/file/bawokirosuritexo.pdfIn PDF document text
- http://peter-crooks.com/userfiles/file/83193772858.pdfIn PDF document text
- https://xylemleads.com/userfiles/file/24775762147.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_off0000dd46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD46 | 10232 bytes |
SHA-256: 1b68489ca43828ad1c0e2c9adf72981862a7cf0028e77e087c7c69717b606ba6 |
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font_01_sfnt_off0000f44b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF44B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010c5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C5D | 18328 bytes |
SHA-256: d02bc4605328d023bead4f84f00f4654c6ff8f3a450b54e2a30a57113927203a |
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