MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains multiple heuristics indicating it is a link farm pointing to compromised WordPress upload storage and disposable hosting. The presence of a 'download button' lure, combined with numerous external URIs, suggests an attempt to trick users into downloading further malicious content. ClamAV detection further confirms its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://laborke.ru/uplcv?utm_term=vidmate+2020+app+download+free PDF link annotation
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614176fb08d15---99930364159.pdfIn PDF document text
- http://wdnederland.nl/file/48889233907.pdfIn PDF document text
- http://csc0535.com/userfiles/file/20210902213102_si3uz9.pdfIn PDF document text
- http://franceplus.fr/userfiles/file/7813250047.pdfIn PDF document text
- http://cl-pub.com/files/files/7038472297.pdfIn PDF document text
- http://taxicityplus.ru/userfiles/file/81071313967.pdfIn PDF document text
- http://sadiqandsons.com/userfiles/files/41081873846.pdfIn PDF document text
- https://zoldlaptop.hu/ckfinder/userfiles/files/55572063324.pdfIn PDF document text
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/16136373cdcffe---ferobilimamu.pdfIn PDF document text
- https://artgallery.devctn.com/ckfinder/userfiles/files/12269616207.pdfIn PDF document text
- http://newbusan.net/FileData/ckfinder/files/20210916_A930C23625BC092E.pdfIn PDF document text
- https://mn-lawfirm.com/box/userfiles/file/jitibisu.pdfIn PDF document text
- http://burragebrothers.org/demo/jolie/beta/userfiles/files/93596322707.pdfIn PDF document text
- https://indoshaolinkungfusociety.com/ckfinder/userfiles/files/gewiseduvozegojija.pdfIn PDF document text
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1613b81903d396---xuzodu.pdfIn PDF document text
- http://viswinkelindex.nl/images/uploads/jamakemos.pdfIn PDF document text
- https://cmoretv.com/userfiles/bixijorojenetosokuz.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145fcd95d0b3---jibajuto.pdfIn PDF document text
- https://orangerun.re/photo/files/69596389009.pdfIn PDF document text
- http://ventima.ru/userfiles/file/9160245052.pdfIn PDF document text
- http://splogservice.ru/content/files/kufumesodek.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613aa2c00179b---25330849522.pdfIn PDF document text
- http://www.blueoak.fr/image/file/keruzak.pdfIn PDF document text
- http://urbanelect.com/userfiles/file/57089355505.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_off0000e1de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1DE | 10788 bytes |
SHA-256: f9e45d434ad5b97c6f0d239d5699c32bdbe07651fed9ead02ce4b62518a06a01 |
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font_01_sfnt_off0000fab7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAB7 | 18640 bytes |
SHA-256: f98650cf76f2dc782fe2d6e0ebf0f39f973df6af56bf65bbbf1520751c302fc0 |
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font_02_sfnt_off00012aca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12ACA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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