MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV detecting it as a phishing trojan. It contains numerous links pointing to compromised websites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL analysis indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://pistant.ru/uplcv?utm_term=vinculos+afectivos+en+la+familia+pdf PDF link annotation
- https://cauthinh.com/luutru/files/59913749000.pdfIn PDF document text
- https://www.uflo.edu.ar/ckfinder/archivos/documentos/natubujiwepovakaximelo.pdfIn PDF document text
- https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e418d4cab1---11302731823.pdfIn PDF document text
- https://autoteam.in/ckfinder/userfiles/files/suvosopefapusarirele.pdfIn PDF document text
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb72b87e19---zigisakor.pdfIn PDF document text
- http://mynigaoe.com/upload/file/20210714123733.pdfIn PDF document text
- https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/efmlmcd8nuvv7ific98u3hr28n/48405339820.pdfIn PDF document text
- https://dwitunggaljaya.com/sitefiles/file/59316996430.pdfIn PDF document text
- https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/f847a3dc6d8a82748376c97bbaafbe4e/67357749430.pdfIn PDF document text
- http://jts-electrical.co.uk/ckfinder/userfiles/files/9320060936.pdfIn PDF document text
- http://qkmedica.com/uploads/userfiles/file/tumujanu.pdfIn PDF document text
- https://monographie.com/ckfinder/userfiles/files/95914469767.pdfIn PDF document text
- http://awkontrakt.pl/ckfinder/userfiles/files/68591556418.pdfIn PDF document text
- https://sinarwaja.com/account/files/fakix.pdfIn PDF document text
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/d45be0eaba0de929e05f6eaea55b0e18/61137485262.pdfIn PDF document text
- http://rrbrentacars.com/files/others/86699996095.pdfIn PDF document text
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/697073a1902752076621a430a05c19b8/fafujumuwog.pdfIn PDF document text
- https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/qm6v9v0mts97nnbg8hrv7edbvs/pizifukawatebeludijuxumu.pdfIn PDF document text
- https://soudurelausiere.ca/upload/editor/file/78804726273.pdfIn PDF document text
- http://grawerlik.pl/userfiles/file/dibotokogiwatakupud.pdfIn PDF document text
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607a8cb5b8edb---94350231538.pdfIn PDF document text
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/7763628f60e0a8374c24727f11187ce8/49668393841.pdfIn PDF document text
- http://www.plain-pied.com/editeur/ckfinder/userfiles/files/diwilenonimowit.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 |
|---|---|---|---|
stream_002_off0000c34f.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xC34F | 10816 bytes |
SHA-256: 9116ce7c708aaa25e5964404cf046ff8399e3e950d48676f931d01efc2a861b4 |
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font_01_sfnt_off0000dc52.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC52 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f464.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF464 | 17740 bytes |
SHA-256: 6fe183cca6386de9391f0db40c29a4d1820b3ce8d8cf58bcc78a817a39881334 |
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