MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains numerous embedded URLs pointing to compromised CMS upload storage and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of these links and the overall structure indicate an attempt to deliver a phishing or malware payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://catamma.ru/uplcv?utm_term=what+is+supersu
- http://www.cenlafilm.com/siteuploads/editorimg/file/2865888883.pdf
- https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/4nsgeaei0prsk3av67t81q3rc2/55542989928.pdf
- http://mega-gold.com/userfiles/files/pomifuvivoxolufen.pdf
- http://graylegalservices.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/95382994222.pdf
- http://trlgpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/patorirusexupaludulun.pdf
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/161411e7760451---ledesenomewetotutemo.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16133e8d7457da---firazerewidorube.pdf
- http://circuitoinsulargc.com/documentos/file/32783154833.pdf
- http://agriturismolataggiasca.eu/userfiles/files/tosibemed.pdf
- http://ituor.ir/basefile/chartermeinfo/files/91706075065.pdf
- http://excitechem.com/userfiles/file/99989376095.pdf
- http://fotocaroli.it/userfiles/files/pajegapetedirixipir.pdf
- https://eklyps.net/images/file/25971855396.pdf
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613584d1c524a---kumizu.pdf
- http://cistenivytahu.cz/upload/file/12886275722.pdf
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/2260487191f37e8a111769446c5cc670/buganijidunomorew.pdf
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f70a83047f---neluzafarovuvefonuru.pdf
- https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/1612fd2d229898---zopovelona.pdf
- https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/a537e6f6bbf4c6d9e165bdb0d53008b2/tumubowupajajepur.pdf
- http://proallprint.com/userfiles/files/29582920354.pdf
- https://www.eos.org.eg/ckfinder/userfiles/files/wunajirunumipitojodir.pdf
- http://tmtechvn.com/webroot/img/files/suronurixekotumegamoxuge.pdf
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/fc700aab810be15f1111063dbcc6511c/wavubusur.pdf
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/161335d845fc20---fatiwodedugixi.pdf
- 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_off0000e263.binb5ec6a48af82ecbe3029bf9b8d118f7b968703a8a46a0d00e215a0000f2ec1e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE263 | 10172 bytes |
font_01_sfnt_off0000f95b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF95B | 16792 bytes |
font_02_sfnt_off0001116d.bin91fc114d6f718261a58fc6512a11c9ce243f48d75ae6091a2677b3e5124e0dec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1116D | 17572 bytes |
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