MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm hosted on disposable domains, a common tactic for phishing and malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or delivering a secondary payload. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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=download+android+os+software PDF link annotation
- http://mindentudor.hu/userfiles/file/rujepuvisobasu.pdfIn PDF document text
- http://polyalpan.hu/_user/file/movaduxotofaxibuvexiz.pdfIn PDF document text
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161438ef06b31f---36124423126.pdfIn PDF document text
- https://eklyps.net/images/file/60548930884.pdfIn PDF document text
- http://pbhdom.eu/userfiles/file/48957754642.pdfIn PDF document text
- http://orderkiwicafe.com/uploads/files/bagete.pdfIn PDF document text
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/724487acc67186df4534d46f5ac7ee3b/daromenisirajum.pdfIn PDF document text
- http://hasadtemizlik.com/upload/file/82101319252.pdfIn PDF document text
- https://rockeit.com/userfiles/file/jamajujidesapoloru.pdfIn PDF document text
- https://hiperaktivite.info/userfiles/files/xopipizegozirobeminejixaw.pdfIn PDF document text
- https://weboonline.com/ckfinder/userfiles/files/524769181.pdfIn PDF document text
- http://cozycornerexpress.com/uploads/files/77420690778.pdfIn PDF document text
- http://medica-brno.com/files/sukemilulovuwupugi.pdfIn PDF document text
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138e60e76a51---dilaxuven.pdfIn PDF document text
- https://www.sensiblemachines.com/ckfinder/core/connector/php/files/wofazirefedobu.pdfIn PDF document text
- http://tk-weld.com/images/library/File/gawalozap.pdfIn PDF document text
- https://trompis-tondschungel.de/userfiles/file/tamenujivojixetukowe.pdfIn PDF document text
- https://fullgame.hu/uploads/files/povumip.pdfIn PDF document text
- https://batikatravels.com/userfiles/file/75960923299.pdfIn PDF document text
- http://rosniyom.com/userfiles/files/paxavazezudupiser.pdfIn PDF document text
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/7728c515b04a4e883d1368f5b7bf4467/56526276004.pdfIn PDF document text
- http://www.binghan.my/userfiles/file/22896960650.pdfIn PDF document text
- http://tochuchoinghi.org/files/98693896446.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_off0000d534.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD534 | 10432 bytes |
SHA-256: 7478dbd5118b9d0e70ef98dc8823c6f4a9a77a9b369dc1ad7933d9d9c48007b0 |
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font_01_sfnt_off0000ed09.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED09 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001051b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1051B | 22212 bytes |
SHA-256: 3a984ff2321ec507aa8b5e0759fbf852832657d361acdd5d01f176751669a1da |
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