MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains numerous links, many pointing to compromised CMS uploads or disposable hosting, suggesting it functions as a link farm. These links likely lead to phishing sites or further malware distribution, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 https://chcial.ru/uplcv?utm_term=how+to+use+sd+card+reader+on+android PDF link annotation
- https://nodka.eu/ckeditor/ckfinder/userfiles/files/24909165392.pdfIn PDF document text
- https://mcq.bmtinhoc.vn/InteriorWeb/images/images_news/files/fepaleduvezubiz.pdfIn PDF document text
- http://p-energo.ru/content/file/98627868518.pdfIn PDF document text
- http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/82014041307.pdfIn PDF document text
- http://zzzwchem.com/upload/files/65486990396.pdfIn PDF document text
- http://way-of-spirit.ru/upload/file/45457853278.pdfIn PDF document text
- https://doctmcooper.com/userfiles/files/bitenemodivapu.pdfIn PDF document text
- https://nationalshield-uae.com/userfiles/files/40228289138.pdfIn PDF document text
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/b7af8c1f78b1a609279586817e7a1b46/75595462044.pdfIn PDF document text
- https://athenaeumchessclub.com/ckfinder/userfiles/files/puzike.pdfIn PDF document text
- https://rcot.org/userfiles/file/rovigufujedupolivuzevemet.pdfIn PDF document text
- http://thedreams.cz/files/61429469720.pdfIn PDF document text
- http://geasit.it/userfiles/files/51502147876.pdfIn PDF document text
- https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/94f275d8f862ec0ad7ab0452c54fb9f1/81276068606.pdfIn PDF document text
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/3b4c11bfadc49d0380184d326328415a/5622270392.pdfIn PDF document text
- http://woodwork.pl/ubezpiecz/obrazy/file/53383563280.pdfIn PDF document text
- http://shesob.com/file/files/molelizejibow.pdfIn PDF document text
- http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/ru7uki4uf3dd4is8b2041uvf7o/fajag.pdfIn PDF document text
- http://cuathepvangohaiduong.com/images/ckeditor/files/72963059681.pdfIn PDF document text
- https://eyetracking.pl/userfiles/file/timunotaborowupenififu.pdfIn PDF document text
- https://myagenda.myagenda.cz/pictures/editor/files/xupevasixelami.pdfIn PDF document text
- http://myblindz.com/fck_user_files/file/8182454657.pdfIn PDF document text
- https://nhahangphongcanh.com/uploads/files/lamunerunomomonekaviwus.pdfIn PDF document text
- http://lsphc.com/userfiles/file///29477668443.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_off0000b3af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3AF | 16196 bytes |
SHA-256: fb3bfbe6c05332113c5802e88876798e8955dcbd405658046c0c104077cba3b6 |
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font_01_sfnt_off0000dcdb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCDB | 10492 bytes |
SHA-256: ac31134a304bde49c267de63a1d36fcea87d177c7a58cc22a5945cb982f7688f |
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font_02_sfnt_off0000f4e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4E0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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