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 and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document functions as a link farm, containing numerous URLs that point to various websites, including those hosted on compromised WordPress installations. The presence of 'utm_term' parameters in some URLs suggests an attempt to track user interactions, common in phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://medvor.ru/uplcv?utm_term=predicate+nominative+and+predicate+adjective+ppt
- http://golfvillageonline.com/userfiles/file/5181106385.pdf
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f7d6963307e---30547776181.pdf
- https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074c9272cb0a---83750786750.pdf
- https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/c73dac51234470d6780b7f3b1891a65a/bubowafuvinalo.pdf
- http://limoride.net/gallery/file/21807975385.pdf
- http://getvisa.ru/images/File/73461278647.pdf
- http://aal.tw/uploads/htmlupload/files/11254922670.pdf
- https://mariellatriolo.it/public/file/94483850713.pdf
- https://stpeterscbs.ca/ckfinder/userfiles/files/64995857266.pdf
- http://cioccolatogallucci.it/userfiles/file/lekezoxak.pdf
- http://chickendaylacrescenta.com/uploads/files/84711168382.pdf
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/d7ee275a75b6b5b8b18e43c95ba9046b/wejajapuzulup.pdf
- https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/46f132bfab70d259e63cd2366d84a9ca/87439755850.pdf
- http://stphilomenaonline.org/userfiles/file/29724918219.pdf
- https://vegas-shop.net/uploads/files/kikivavoseguzipewizuno.pdf
- https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/23c4381da7123cf1ae1ec41c72650f67/14153641397.pdf
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/eff4db440cd143293d9002cf1c362b84/31201414952.pdf
- http://studiodispirito.it/userfiles/file/19351654300.pdf
- http://roocenter.ru/upload/file/9453449780.pdf
- http://wilkinsconnection.com/clients/9/94/94ba1e7d864c5c8af3bb481f5f9f31de/File/kovesikilema.pdf
- https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608b3ac6c4693---vogonusuwipagowa.pdf
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e415e9c137---nopemevez.pdf
- https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/f463828c7bcc9772883e2d46dfbb7d8f/xedut.pdf
- http://chokmanee.com/userfiles/file/85588390686.pdf
- http://yaqeen-eg.com/userfiles/file/gavexo.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_off0000e54b.bine8dd209767539fea7742098cf0301d483dcc6abde470081d309bb7bafbc7d4c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE54B | 16816 bytes |
font_01_sfnt_off000110b2.bin66c2ea3bba06ec8795003c42592a784bf42bc274199310aa2463bb23928c6e0b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110B2 | 10660 bytes |
font_02_sfnt_off0001290c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1290C | 16792 bytes |
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