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 identifying it as Pdf.Phishing.Trojan. The presence of numerous external URIs, many pointing to compromised CMS uploads or disposable hosting, indicates a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, suggesting it serves primarily as a container for these malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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=8+ball+pool+cash+hack PDF link annotation
- https://menlopark.com/wysiwygfiles/file/4244248903.pdfIn PDF document text
- http://t-cso.com/upload/file_folder/file/472420195.pdfIn PDF document text
- https://euchebnici.com/img/file/lenusitumewonedupe.pdfIn PDF document text
- http://yao-cheng.com/uploadfiles/20211001063321.pdfIn PDF document text
- https://doucetplasticsurgery.com/ckfinder/userfiles/files/13965061205.pdfIn PDF document text
- https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/589af6ace51d36e7d87be71e45029a90/62137044921.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d609a59740---narepivawawinimegajem.pdfIn PDF document text
- http://monikaknoblochova.com/userfiles/file/92587655241.pdfIn PDF document text
- http://integrotech.com/zdjecia/file/47109078778.pdfIn PDF document text
- http://jfac.kr/ckfinder/userfiles/files/3007063519.pdfIn PDF document text
- http://kroonzuivel.nl/ckfinder/userfiles/files/44081544061.pdfIn PDF document text
- https://mk-sito.it/uploads/file/keloli.pdfIn PDF document text
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/2f580c9ad35dc539e3925577190cbe05/44806316622.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/picm6o8r88avrvrcpmq5tg5e51/bojosolug.pdfIn PDF document text
- http://cocoal.com/uploads/file/73426246269.pdfIn PDF document text
- http://divapharma.com/uploaded/file/24469424708.pdfIn PDF document text
- http://plenaseguroseprevidencia.com/fotosempresa/files/21313205355.pdfIn PDF document text
- http://omegapizza.net/uploads/files/95522932183.pdfIn PDF document text
- http://presssimayeshahr.ir/pic/file/80555677592.pdfIn PDF document text
- http://theclubburger.com/uploads/files/44499430470.pdfIn PDF document text
- https://amigo-shop.105h.net/upload/files/71356081167.pdfIn PDF document text
- http://thechelseaff.com/user_uploads/files/78934123570.pdfIn PDF document text
- https://www.zolmedis.lt/ckfinder/userfiles/files/gefon.pdfIn PDF document text
- http://artvideo74.ru/upfiles/files/tiwubixakudo.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_off0000b125.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB125 | 10288 bytes |
SHA-256: 7bd9b48b51092d59c03aefe56e490c31304cd62ce3a87bde3840fcb76161919d |
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font_01_sfnt_off0000c82d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC82D | 17580 bytes |
SHA-256: 246be6f6b27fe084da7e97a58ac3fb3882a5798093547627f60ead23c91f20c9 |
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font_02_sfnt_off0000f5bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5BB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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