MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as a malicious PDF by multiple heuristics and a machine learning classifier, with ClamAV also detecting it as a phishing trojan. It contains numerous links pointing to compromised websites and disposable hosting, suggesting a phishing or malware distribution scheme. The presence of external URIs and link farms indicates an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://smidgel.ru/uplcv?utm_term=html+form+file+accept+pdf PDF link annotation
- http://slsnn.ru/content/files/rorovojanivuwuwupuja.pdfIn PDF document text
- http://apricomm.com/userData/board/file/90011658214.pdfIn PDF document text
- http://cc-loges.com/uploads/file/borajo.pdfIn PDF document text
- https://china-glass-mosaic.com/userfiles/files/20210726_142200.pdfIn PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16083ced73f30c---43401601161.pdfIn PDF document text
- https://cls-toronto.com/wp-content/plugins/super-forms/uploads/php/files/46dc48c91f777959d02085b225f28d74/1868979125.pdfIn PDF document text
- https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/27c626b58a67f90c2041135fdb247327/85388369427.pdfIn PDF document text
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce47aac6a3---22720968887.pdfIn PDF document text
- http://primebrokeragetx.com/ckfinder/userfiles/files/muvazos.pdfIn PDF document text
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c50cb31c445---16519222123.pdfIn PDF document text
- http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16080c09a42c20---12122561528.pdfIn PDF document text
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160834ae347581---wumunalu.pdfIn PDF document text
- https://avenue102.com/uploads/file/44097680873.pdfIn PDF document text
- https://ixiu-23.com/uploads/files/202108160618559027.pdfIn PDF document text
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/330f3a788c76c7cfb336e5714a3be3bb/12132727743.pdfIn PDF document text
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b658605a6---diwodetitikis.pdfIn PDF document text
- https://myphambambi.com/webroot/img/files/39687826132.pdfIn PDF document text
- http://rialta.ie/userfiles/files/gakeki.pdfIn PDF document text
- http://skogsformedling.se/bilder_umeny/File/20071445883.pdfIn PDF document text
- http://sial.pl/galeria/file/tomusebizewumakebaviwuv.pdfIn PDF document text
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16111d61b6866a---posurejudubakuxaxomo.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e4bc9c0e587---49241540605.pdfIn PDF document text
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612ea692d1d52---fuxeze.pdfIn PDF document text
- http://adaviestransportltd.com/userfiles/file/dojazunapev.pdfIn PDF document text
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/cf4db322a8ecfe4cda1cd53c68da9cfb/40264054287.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_off0000bb4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB4B | 10500 bytes |
SHA-256: 4c26604801afd7387d5befe5f19887b4bbcf79c438301d1803d23ea04bc322a1 |
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font_01_sfnt_off0000d31c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD31C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000eb2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB2E | 20384 bytes |
SHA-256: a617e63b39f872e397efdf74699c7a1633327244b66df441594df57bbfc1ce3e |
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