MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of links pointing to various compromised websites, many of which host other PDF files. This structure strongly suggests a link farm designed to distribute malicious content or facilitate phishing attacks. The ML classifier and ClamAV detection further confirm the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16139323438a03---tenenaneso.pdf In PDF document text
- http://euredit-editions.com/userfiles/file/68554414881.pdfIn PDF document text
- https://hensuyenpqa.traigiongthuha.com/ckfinder/userfiles/files/48438060157.pdfIn PDF document text
- https://pmapmc.com/userfiles/image/files/tavona.pdfIn PDF document text
- http://ipea.kr/userData/board/file/gefolomabave.pdfIn PDF document text
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d028953e20---supogosotad.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/1d0448a4d1ff1d38206d6fd71b6d6dec/41482270094.pdfIn PDF document text
- http://awkontrakt.pl/ckfinder/userfiles/files/betufogatopoxepivasuxeg.pdfIn PDF document text
- http://ratchadatitan.com/UserFiles/File/wilavobokuboxapo.pdfIn PDF document text
- https://biserica-izvorul-tamaduirii.ro/files/80829789868.pdfIn PDF document text
- http://vietnam-intraco.com/webroot/img/files/wajulufuxalujalit.pdfIn PDF document text
- https://greenbins.ca/ckfinder/userfiles/files/22673379048.pdfIn PDF document text
- http://studiodebiaggi.eu/userfiles/files/pevuwevovutupotadodod.pdfIn PDF document text
- http://guide-eq.com/userfiles/file/20210912080351_2eegjs.pdfIn PDF document text
- https://krusomying.com/data/file/88293549593.pdfIn PDF document text
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eec29d4388---61274561755.pdfIn PDF document text
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/87d8634f0d8030dede6203352d45c759/4284498578.pdfIn PDF document text
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614031c61daad---mujopopezadujekovosuserur.pdfIn PDF document text
- https://rallstarawards.us/nbloom/fckuploads/file/muzerodimejisije.pdfIn PDF document text
- http://ediliziaunoaventi.com/userfiles/files/sosulavuti.pdfIn PDF document text
- http://tsuiteru66.com/userfiles/file/wilakevizefox.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=pdf+writer+for+androidPDF link annotation
- 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_off0000e08f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE08F | 10220 bytes |
SHA-256: 95ba301ecbf6c119da83efee0cc42a6b6d01815e6042b31e9571f1129f236e75 |
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font_01_sfnt_off0000f7a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7A2 | 17976 bytes |
SHA-256: c3087dba503d17be91b031f9ca0228d306938f0f3de6aa15a7ed6ae6555faa54 |
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font_02_sfnt_off0001268a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1268A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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