MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Numerous heuristics point to the PDF being a link farm, with many URLs hosted on disposable or compromised domains, suggesting a phishing or malware distribution scheme. The presence of embedded URLs and the overall structure strongly suggest this PDF is intended to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://irlanc.ru/uplcv?utm_term=builder+for+minecraft+pe+apk+download PDF link annotation
- http://hoachathoanggia.com/userfiles/file/51739319997.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/161366f86c2576---fumorif.pdfIn PDF document text
- http://chinhlytailieuluutru.com/media/ftp/file/96973289356.pdfIn PDF document text
- http://ros.by/ckfinder/userfiles/files/bazeramojutexexizi.pdfIn PDF document text
- http://drironcat.com/images/file/karenad.pdfIn PDF document text
- https://coopinproject.eu/ckfinder/userfiles/files/laxidilurovufotu.pdfIn PDF document text
- http://noahmission.org/dataroom/file/27825343064.pdfIn PDF document text
- http://cochemical.com/upload/files/95387976826.pdfIn PDF document text
- http://www.musicboxpiano.com/contentfiles/48337034324.pdfIn PDF document text
- https://didacostruzioni.it/userfiles/file/zixuburirerowoxevodenove.pdfIn PDF document text
- https://forumsevens.com/images/file/54081343799.pdfIn PDF document text
- http://shippingengineering.com/files/ckeditorothers/visesir.pdfIn PDF document text
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161400f2ac3c68---lifasezi.pdfIn PDF document text
- https://charterfori.ir/basefile/charterforiir/files/pobikixumenesidavasav.pdfIn PDF document text
- https://cailux.lu/userfiles/files/kotobevisupivir.pdfIn PDF document text
- http://lexuspolymers.com/assets/ckfinder/userfiles/files/58637921865.pdfIn PDF document text
- http://webcertain.net/contentupload/fckeditorUploads/organization_/file/89001811073.pdfIn PDF document text
- http://unityproductions.com/upload/files/21631194803.pdfIn PDF document text
- https://icon-studios.com/userfiles/file/xuxix.pdfIn PDF document text
- https://italvaping.com/file/jowokosopifojepu.pdfIn PDF document text
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/e48553d6ff9435bad2832fff645fe29a/89491099092.pdfIn PDF document text
- http://erpsamik.com/ckfinder/userfiles/files/dunijotosesomilevuben.pdfIn PDF document text
- http://studiotravenzolo.it/userfiles/files/94136601504.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_off0000d639.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD639 | 21572 bytes |
SHA-256: f30122fbf3880f6f8c3a6ae1013173afbb54ec4df65846ede5e066ef885b88db |
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font_01_sfnt_off00010e25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E25 | 10944 bytes |
SHA-256: 7fe5fa223b5e89b917b0df9a41f054747c55a9bbd837ad6b37170ce1e1fd200b |
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font_02_sfnt_off0001278d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1278D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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