MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users. The PDF structure and embedded URLs are consistent with phishing or malware distribution campaigns, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://laborke.ru/uplcv?utm_term=ocimf+guidelines+pdf PDF link annotation
- https://rrr71.ru/upload_picture/fudoz.pdfIn PDF document text
- http://jordanfamilyreunions.com/clients/5/51/51534e3e38036466a76ca8a024fd4923/File/51498064551.pdfIn PDF document text
- http://evohome.pl/userfiles/file/72683746708.pdfIn PDF document text
- http://www.almansori-ye.com/almansorifiles/files/fojonaronipuwaz.pdfIn PDF document text
- http://jpind.pl/userfiles/file/minusesigisutux.pdfIn PDF document text
- http://lafayetteconnections.com/clients/52818/File/14112887183.pdfIn PDF document text
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/161057b474344c---80082185306.pdfIn PDF document text
- https://damsindia.org/admin/uploads/file/51990511727.pdfIn PDF document text
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ed90e9462ea---gatebo.pdfIn PDF document text
- http://backkwang.com/userData/board/file/bawalesaxuxamelegopagabu.pdfIn PDF document text
- http://bagliodeimille.it/userfiles/files/72661835930.pdfIn PDF document text
- https://khotelmarket.com/FileData/ckfinder/files/20210826_1CD4DB24A7833977.pdfIn PDF document text
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/1488cbf7cf6f65a7335faa531f0704a9/88348397383.pdfIn PDF document text
- https://fentesmakina.com/paket/upload/files/96180523681.pdfIn PDF document text
- http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/ad8fdc6e717ffa3546e13b53d4e28b87/95534464358.pdfIn PDF document text
- https://cardion.dk/gfx/fckimages/file/medixufuwevukamul.pdfIn PDF document text
- http://kristenpell.com/userfiles/files/gereg.pdfIn PDF document text
- http://esoftland.com/userfiles/file/bemirofilofabozaxipokuji.pdfIn PDF document text
- https://reklama71.ru/upload_picture/rebazisikutudawuwofuzodak.pdfIn PDF document text
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/161083826ade93---81111966341.pdfIn PDF document text
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/160ae50e28e585---86436813405.pdfIn PDF document text
- http://ascensionchina.com/userfiles/file/58103214341.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_off0000b3ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3ED | 16524 bytes |
SHA-256: b94a50ecba7d117bef59c18d47c89ad1ec8d8b4fbcca57471c55c9b929e8932a |
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font_01_sfnt_off0000de3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE3A | 10608 bytes |
SHA-256: f9e17b36e1ab694ea4bffdc40bdde677c17c053a67f209ec9dc7ef9ad4ec1f6b |
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font_02_sfnt_off0000f643.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF643 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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