MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and disposable hosting domains, suggesting a phishing or malware distribution scheme. The presence of multiple PDF link farm heuristics further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9925
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://archism.ru/uplcv?utm_term=how+to+add+double+line+border+in+excel PDF link annotation
- https://stiff.pl/ckfinder/userfiles/files/74205534707.pdfIn PDF document text
- http://xn--b1agjlwjc3g.xn--p1ai/ckfinder/userfiles/files/pebefazodadoruxedar.pdfIn PDF document text
- https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/e02b9a898bf5c465202c494ee242ca62/74925997788.pdfIn PDF document text
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/3bqguaess0iugeagid87d48s6g/zisitopet.pdfIn PDF document text
- http://irinka.org/ckfinder/userfiles/files/53900522166.pdfIn PDF document text
- http://vinhthuan.vn/upload/files/5169082790.pdfIn PDF document text
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609874212b744---53871820973.pdfIn PDF document text
- http://24cvety.ru/upload/files/88181336089.pdfIn PDF document text
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/8grnj50tqg4538lq303b7u9r41/xomazo.pdfIn PDF document text
- http://actybrain-consult.com/Upload/files/xixuxenigonerilud.pdfIn PDF document text
- https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/d45ea0974512d67b7d02984ad3dfed22/61503752984.pdfIn PDF document text
- https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/bda1ae1f7802bf9b43a57bbb28e8dac7/bozozuzagejezulir.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091618e0b7bd---farowos.pdfIn PDF document text
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160886ab1b864c---25308833391.pdfIn PDF document text
- https://congchung7.com/upload/file/42323687014.pdfIn PDF document text
- https://psg66.ru/admin/ckfinder/userfiles/files/diwudano.pdfIn PDF document text
- http://ex2010.com/uploadfile/file/2021081821181173499.pdfIn PDF document text
- https://fokusmedia.com/images/uploads/64655756016.pdfIn PDF document text
- http://vejwun.cz/images/foliveku.pdfIn PDF document text
- http://ikra-ekb.ru/files/fckeditor/file/93226669120.pdfIn PDF document text
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e0d34ef0ea---vimudiriwowotarusijakaxov.pdfIn PDF document text
- http://viettelhaiphong.me/data/dulieu/files/44839916109.pdfIn PDF document text
- https://cafesca.org/ckfinder/userfiles/files/43429215924.pdfIn PDF document text
- https://ontech.vn/images/ckeditor/files/16788414569.pdfIn PDF document text
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd055112bcb---99698632623.pdfIn PDF document text
- http://radio6deenero.com/uploaded/files/vibarusaviz.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_off0000e419.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE419 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fc2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC2B | 17356 bytes |
SHA-256: db505239f3e35fb0017545a2359b514a88ca486d2d865aeb85e9839219645a08 |
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font_02_sfnt_off00012947.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12947 | 10612 bytes |
SHA-256: a092c90fbc86ceb4c430a9b56a7ad12b6559ab3667f39d19f63957e882b4cf83 |
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