MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous external links, many pointing to compromised WordPress upload directories, suggesting a link farm used to distribute malicious content or redirect users. The document body, though heavily obfuscated, contains references to CPU models, likely a lure to entice users to click on the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://huntic.ru/uplcv?utm_term=4790k+vs+8700k PDF link annotation
- https://healthmatters.me/userfiles/file/38528716633.pdfIn PDF document text
- http://sosnovgeo.ru/userfiles/file/terinigan.pdfIn PDF document text
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a2401529c40---logafedafanogufizexa.pdfIn PDF document text
- https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/9123bbf7358e2cc8d1d0f801b3aeca4a/90871018091.pdfIn PDF document text
- http://montgomery71.com/clients/34132/File/55470813021.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b5a9b6d5cad---pobimatizagexedi.pdfIn PDF document text
- https://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/09f00c6b88edf95ceeda4c9505c81411/54841964265.pdfIn PDF document text
- https://www.analfissur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079bc5871b9c---75447137177.pdfIn PDF document text
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/00d31f334969d20a2be721bd458e3b50/fawip.pdfIn PDF document text
- http://ikhmongol.mn/ckfinder/userfiles/files/62197220468.pdfIn PDF document text
- http://amandamaitland.com/images/file/wekafefiponina.pdfIn PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/og2k4r056kg4j4s858g00n3nr7/tizuzeregumopepidozasine.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607689c65a237---rewiluw.pdfIn PDF document text
- http://travelshops.pl/userfiles/file/63454091495.pdfIn PDF document text
- http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609a148a75c2a---20323948336.pdfIn PDF document text
- https://anthonygillant.com/userfiles/file/zedeberapaxotifelilepo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f585.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF585 | 5028 bytes |
SHA-256: 8aa576d44460c46c375f7b7473fa6a71c5252e3cca7163e5c94996513a9fae14 |
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font_01_sfnt_off000106ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106CA | 11932 bytes |
SHA-256: 76fd390b6684b6a9fbaafeb9354b2901f1d9bcee93f8844387c0cd7982d03492 |
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