MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised websites and disposable hosting, suggesting it functions as a link farm to distribute phishing or malware. The presence of 'utm_term' parameters in some URLs further supports a lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://krisoc.ru/uplcv?utm_term=aircraft+engine+working+principle+pdf PDF link annotation
- http://clairerolo.com/userfiles/file/19045923749.pdfIn PDF document text
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a49e1108f9---nabisedeti.pdfIn PDF document text
- https://earplighting.com/wp-content/plugins/super-forms/uploads/php/files/6d298a5bf56762c86e078e3abb79abe0/kozuxogibixuwarisulo.pdfIn PDF document text
- https://wccia-vastu.com/wp-content/plugins/super-forms/uploads/php/files/bfe234482e73ac38300c6865839505f3/waguroxukujavevijofaj.pdfIn PDF document text
- http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608af4ba9c2b5---razizesomiburenaxadene.pdfIn PDF document text
- https://ikitellirezistans.com/upload/files/66013535456.pdfIn PDF document text
- http://studiomilano.eu/userfiles/files/reduluwiralivakokagez.pdfIn PDF document text
- https://fnb-concepts.com/images/uploads/files/tikonezakugikawu.pdfIn PDF document text
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/fa0935d0d5e1213c37853022e01261b7/79628626941.pdfIn PDF document text
- http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/4b316d2cdeb713f81d4119d66b66cc0b/75788498359.pdfIn PDF document text
- http://www.sport-konyv.hu/userfiles/file/40513013167.pdfIn PDF document text
- https://noddy.nu/images/file/voten.pdfIn PDF document text
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/ffa32bdf202c34cccf68458a02f6e5ed/72603740849.pdfIn PDF document text
- http://lbhs1965.com/clients/6/6b/6bdd8f708684a1f547efbf97e1630fe5/File/1578463242.pdfIn PDF document text
- https://iltuosarto.com/file/pegazuvabuf.pdfIn PDF document text
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e004fb88a8---3651605348.pdfIn PDF document text
- http://pvsystreports.com/wp-content/plugins/super-forms/uploads/php/files/rrfpvlqp78v6u86s935ljprii2/67102298594.pdfIn PDF document text
- https://wrd13.com/force/file/mafogokikaritaxepomeritu.pdfIn PDF document text
- https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/ellnesao6sfd3e3dtr6fanvv70/tozexajidizinowefivofak.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_off0000e4cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4CD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fcdf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCDF | 16560 bytes |
SHA-256: 161b53e7b860e87e4cfee4207feec72823267e953fa93b077438ad91f964027c |
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font_02_sfnt_off000127ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127CA | 10788 bytes |
SHA-256: 0ed1825c46eddb5f1e178e332f2a545cedddd636fa94616858f09bf94d727458 |
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