MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous external links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of external URIs and the overall structure indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://crewmak.ru/uplcv?utm_term=play+store+app+link+download PDF link annotation
- http://lechioutdoor.com/userfiles/file/sejakoje.pdfIn PDF document text
- https://t2sc.me/userfiles/66476203747.pdfIn PDF document text
- http://kooijobs.in/ckfinder/userfiles/files/16761408326.pdfIn PDF document text
- https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161325d65212f1---firotolazedopofunejupe.pdfIn PDF document text
- https://braveathlete.net/geektic/files/gelexomobegobisagesuko.pdfIn PDF document text
- https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/efc6f502cd5b3c3ddf68dd906244471c/83251348580.pdfIn PDF document text
- http://eurogeographyjournal.eu/admin/fckfiles/file/rerupinojemuzog.pdfIn PDF document text
- http://baove24h.info/upload/files/zimixedod.pdfIn PDF document text
- http://naturalwonders.com/uploads/files/pedipezezejozal.pdfIn PDF document text
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614a2c4f9f52b---36808980795.pdfIn PDF document text
- http://www.mamafoundation.cz/ckfinder/userfiles/files/68204439502.pdfIn PDF document text
- http://hairfibers24.com/upload/file/soxatogolunat.pdfIn PDF document text
- http://mavelikaradiocese.org/rapha/ckfinder/userfiles/files/16931501213.pdfIn PDF document text
- https://big-affaires.com/img/pics/files/nuzumenilunov.pdfIn PDF document text
- http://www.s4b.nl/upload/files/numobidusatarixisu.pdfIn PDF document text
- http://dorapeyzaj.com/userfiles/file/tewowe.pdfIn PDF document text
- http://patrick-jardinage.fr/ckfinder/userfiles/files/bofulolitofusi.pdfIn PDF document text
- http://prograsifkalip.com/files/xexowojawi.pdfIn PDF document text
- http://lycee-elm.info/userfiles/file/96849695767.pdfIn PDF document text
- http://szcftz.com/upload/xinufedotixozinazedinazit.pdfIn PDF document text
- http://brette-animation.com/userfiles/file/58104944670.pdfIn PDF document text
- https://mediaget.com/userfiles/files/89839516106.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_off0000b0ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0EF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c906.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC906 | 10676 bytes |
SHA-256: 3d02a3cd996a5f7eafcdc50f0e836875e3b1c7e1059aa0d9915036e292798efa |
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font_02_sfnt_off0000e1b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1B3 | 15724 bytes |
SHA-256: 5eccac921d8288a92879a824c89198fcea056628247be0e735d694550cfb9043 |
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