MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or are part of a link farm designed to redirect users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery through these links. The document's structure as a link farm suggests an attempt to obscure the final malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://infrive.ru/uplcv?utm_term=myst+riven+exile PDF link annotation
- http://eshop-kocicinadeje.cz/files/file/rapapupuvazolisin.pdfIn PDF document text
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161403467826ab---98088354389.pdfIn PDF document text
- http://planet-for-events.de/userfiles/file/81380710866.pdfIn PDF document text
- https://jungleflightchiangmai.jungle-flight.com/Uploads/files/54532758741.pdfIn PDF document text
- https://gullyracing.it/admin/ckfinder/userfiles/files/69447962251.pdfIn PDF document text
- http://azseal.net/uploads/userfiles/file/tolimusuwukorugutifuwef.pdfIn PDF document text
- http://uni-farm.pl/ckfinder/userfiles/files/29659674548.pdfIn PDF document text
- https://turkuazhost.com/calisma2/files/uploads/nodovejekumer.pdfIn PDF document text
- http://waxiangyuan.com/upload_fck/file/2021-9-25/20210925120741537441.pdfIn PDF document text
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16156b6561ddbe---koxomivebebujutopuzak.pdfIn PDF document text
- http://antansconstructions.com/ckfinder/userfiles/files/rirutegolodekov.pdfIn PDF document text
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613de153c5ffa---5760508871.pdfIn PDF document text
- http://cafegreenwichvillage.com/uploads/files/gawetudizitunugudevega.pdfIn PDF document text
- https://pincodehub.in/userfiles/file/16504882959.pdfIn PDF document text
- http://tucholainfo.pl/userfiles/file/mufopa.pdfIn PDF document text
- http://avsa.org/sites/default/files/images/files/36195743534.pdfIn PDF document text
- http://rajhansnursery.com/userfiles/file/povojit.pdfIn PDF document text
- https://accesoriosalmayor.com/images/userfiles/file/63047530612.pdfIn PDF document text
- https://ajambary.com/userfiles/file/zunadowovavifowazof.pdfIn PDF document text
- https://shreenathtechnologies.com/userfiles/file/32258353151.pdfIn PDF document text
- http://mqskin.com/luutru/files/58685263170.pdfIn PDF document text
- http://bangladeshceramicsociety.com/uploads/editor/files/50100180690.pdfIn PDF document text
- http://smarttechsolutionukltd.com/uploaded_files/userfiles/files/puwevebi.pdfIn PDF document text
- https://limsurdua.com/contents/files/90638694759.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/pIn 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_off0000c8ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8AC | 18132 bytes |
SHA-256: 5da5263bc5bcf4f173e9c976d20c4ecbe10a7c0ccb3dcd07411b33227d9550ab |
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font_01_sfnt_off0000f771.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF771 | 10092 bytes |
SHA-256: d48777445b6c926b64a44466dd18563fa5c466962ab379c5b285727c10a78aab |
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font_02_sfnt_off00010e13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E13 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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