MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous links pointing to compromised websites and disposable hosting, suggesting it functions as a link farm to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics strongly suggest this PDF is part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9919
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://inwebjor.ru/uplcv?utm_term=geometry+chapter+4+test+answers+id+a PDF link annotation
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/3cbk4v8o0ffeml8dq47ctf3iof/jabemesudopanirosuluf.pdfIn PDF document text
- http://oasis-inwaste.asia/files/file/wuvukewokasuret.pdfIn PDF document text
- https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/546771c746250730f62b9e0dff2aa670/sulemafesuti.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f2ed9f45ffb---wewegamiw.pdfIn PDF document text
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a931e26d2f5---zenunebedutab.pdfIn PDF document text
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e8833737cbd---35641923700.pdfIn PDF document text
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/fefac9badc637ebbc6e7a715fad5ad86/jejiwab.pdfIn PDF document text
- http://curry-box-deluxe.de/userfiles/file/45097920315.pdfIn PDF document text
- http://jr-bang.com/uploadfiles/20210620070354.pdfIn PDF document text
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cc18a22715---xipumovatum.pdfIn PDF document text
- http://presssimayeshahr.ir/pic/file/gikuwidige.pdfIn PDF document text
- https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/fcmandgu48k3dqmt55sbislsqb/fenujekom.pdfIn PDF document text
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/v6fopu8rb54o8e6l840ttvrlke/pabote.pdfIn PDF document text
- http://tsg-vaganovskoe.ru/ckfinder/userfiles/files/sowubuzowemero.pdfIn PDF document text
- http://ybshajiang.com/userfiles/file/2021-08-15/21081502015179083815o4gfe8pjoc.pdfIn PDF document text
- http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/9547346524b36a5c5024b7a3415dc84c/2461859063.pdfIn PDF document text
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfcc244f40c---fufolugis.pdfIn PDF document text
- https://mttrasportisrl.it/dati/upload/file/98345041050.pdfIn PDF document text
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1609850d9b670c---lasobogeres.pdfIn PDF document text
- https://cambodiadriverservice.com/userfiles/file/dirudanafaxasim.pdfIn PDF document text
- http://rebizplus.com/userfiles/file/89574293384.pdfIn PDF document text
- http://afghansolar.com/userfiles/file/xidivexipolupalemo.pdfIn PDF document text
- http://www.uc-kushiro.net/images/library//File/xufefa.pdfIn PDF document text
- https://bikinibody.be/wp-content/plugins/super-forms/uploads/php/files/hnmg2vs0kstvqu9vhc6ouqgedk/fijuvikedaromiduweboval.pdfIn PDF document text
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160c8ec9c5d240---keritokexigoxowisu.pdfIn PDF document text
- https://www.pennlighting.com/wp-content/plugins/super-forms/uploads/php/files/fd2481306913271fa0c26c85cc63ac74/57402277812.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_off0000c456.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC456 | 15472 bytes |
SHA-256: d84eb2293654b0829482bf1df0cef92a2a0057b5ce203232d969a27865f66fca |
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font_01_sfnt_off0000ec2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC2E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010445.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10445 | 11048 bytes |
SHA-256: 18c61eb6a26141f17bbf1735a6bc934d1221e5dd46dd112650cecc92ec9cbdab |
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