MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external URLs, some hosted on compromised WordPress sites. The embedded URLs and the nature of the heuristics strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://philabc.ru/uplcv?utm_term=full+screen+chrome+shortcut PDF link annotation
- https://airbays.com/userfiles/file/valesejome.pdfIn PDF document text
- https://jvlegacyhomerepairsmd.com/nbloom/fckuploads/file/19969973713.pdfIn PDF document text
- http://dilimkebab.com/userfiles/file/78160867224.pdfIn PDF document text
- http://lso-msm.com/userfiles/file/jawegefaduxoj.pdfIn PDF document text
- http://rrmkaryacollege.org/rrmkarya/userfiles/file/jonebigazaba.pdfIn PDF document text
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143dce243605---zafuwukirumokisujedotaz.pdfIn PDF document text
- http://itaxabc.com/userfiles/file/20210904110719_960732456.pdfIn PDF document text
- https://chameleoncoupons.com/adgprocessing/uploads/files/xipaket.pdfIn PDF document text
- https://truckforceone.com/upload/editor/file/ragabojotijureterofif.pdfIn PDF document text
- http://rallyteamwalraven.nl/file/nugetadigub.pdfIn PDF document text
- http://yejida.com/userfiles/file/teketekosixepajifi.pdfIn PDF document text
- http://crisismobile.com/ckfinder/userfiles/files/lazanugeriv.pdfIn PDF document text
- https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/ienks54qvj88rpai73kgefhgv3/50161256664.pdfIn PDF document text
- https://medosojewellery.com/userfiles/files/3259349550.pdfIn PDF document text
- http://feminella.ro/upload/fck/pixif.pdfIn PDF document text
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161434207278b8---52191927980.pdfIn PDF document text
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/5qrdqir9hvig2bmisvk6hshdrn/dixapezezib.pdfIn PDF document text
- http://kientrucsangtrong.com/plus/files/40860660741.pdfIn PDF document text
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/161389b2bbe99f---wiguwutiruxifaxunalikif.pdfIn PDF document text
- http://tischlerei-schlusche.de/sites/default/files/file/bobevusawaribofu.pdfIn PDF document text
- http://turhantur.com/turhantur/files/jowifivalixufinar.pdfIn PDF document text
- http://newo.ru/files/files/70411044435.pdfIn PDF document text
- http://daydreamspin.com/userfiles/file/80805266498.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_off0000c8a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8A7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e0b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0B9 | 17600 bytes |
SHA-256: 28b7be2f503fd2b5b909fd6c163aaa2cd3052862e828fb9bdfd1de7ec9b6a0e0 |
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font_02_sfnt_off00010e92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E92 | 10320 bytes |
SHA-256: b5693458a640d12d14744af49b3081acd4b091965d18b04387115f247e337feb |
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