MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious intent. It contains numerous links pointing to potentially compromised websites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the overall structure strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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 http://mitsubishilongbien.vn/images/ckeditor/files/telok.pdf
- https://badoza.net/userfiles/file/52550096154.pdf
- http://npi-management.org/ressource/site-image/files/81721005547.pdf
- http://capitolmetrophysicaltherapy.com/userfiles/file/89821920225.pdf
- http://autoshiftbid.com/fckeditor/userfiles/file/parawamivadobodo.pdf
- http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609e8a178d2da---nusidemelomina.pdf
- http://fygl.net/uploads/file/250605213917.pdf
- http://ezibra.pl/upload//file/javiru.pdf
- http://polenes.cl/userfiles/file/21851377875.pdf
- https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/hfioeu6d0rre5qa4n3sdv6fe10/21937544588.pdf
- https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/9sv2c0hr1h5199ef114so3u7p3/12379381684.pdf
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/80adb887798f5a0b5a10cb9e1742cd5d/lazorafamon.pdf
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/qt2bon3npspj2a9ec4m5882q32/79882323570.pdf
- https://binarbaidservices.com/public_html/userfiles/file/42459497293.pdf
- https://nothingbutsafetyglasses.com/userfiles/file/83971965037.pdf
- https://foundryindia.org/userfiles/file/safegilupejakegumupegasem.pdf
- http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/9c6c21fff84b0f95ef6583b64cfed975/seragomokupukijeluz.pdf
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0998fed542---78540047915.pdf
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/9b814a32434e3a38af44deb9b6510500/fowuwoda.pdf
- https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b046b6af16a---wipebegipiputatozesit.pdf
- http://eurekaelearning.com/upload/news/file/23090431275.pdf
- https://flexrocksrollovers.com/wp-content/plugins/super-forms/uploads/php/files/vfgd4ourhu085g0qssnsiepbgk/fukotuletokagotujeroso.pdf
- https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/415vhv0l1pnl7i58qki5hif45r/duxitifanulozexebu.pdf
- https://nutstudio.it/userfiles/file/43565528878.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=examen+de+diagnostico+para+cuarto+grado+de+primaria+con+respuestas
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cec4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEC4 | 16792 bytes |
font_01_sfnt_off0000e6db.binbed3cf872a8dd199c89f21a9a05bdee102edb8810238cd6a7ce2e9381e167b60 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6DB | 10996 bytes |
font_02_sfnt_off0001002b.binb5d854c8dd54e0d11e876b8f03ac41fc4ff734c721272c0c353d993202c6c3da |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1002B | 17936 bytes |
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