MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable domains, indicating a link farm designed to lead users to malicious content. The ClamAV detection and ML classifier strongly suggest a phishing or malware distribution intent. The presence of external URI heuristics and link farm indicators further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://chongros.com/userData/board/file/49799463535.pdf
- http://truthtube.com/UserFiles/file/mowujubaf.pdf
- http://tantex.org/tantex/tantexuserfiles/file/zagipuxapefabunu.pdf
- https://iphonerepairservice.nl/app/webroot/files/userfiles/files/95012713713.pdf
- https://peptidturkiye.com/ckfinder/userfiles/files/xitewovawefaxu.pdf
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/50a54fca5345cdbe3a2239fb8755c922/59722543457.pdf
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b98c48723c4---dasudanewegotuvaj.pdf
- http://anoh.net/pds/userfiles/files/75034761465.pdf
- https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/cb1266df392e7f2839b2dd630c18f718/zozopomi.pdf
- https://christembassybarking.org/wp-content/plugins/super-forms/uploads/php/files/ab9e2284fe3d540a2a2a55308a22e0b3/sosodedidubowinesapepad.pdf
- https://juhaszautovill.hu/userfiles/file/89910241849.pdf
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/1608a09aea9785---vudajuruv.pdf
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/5cb5f4cb017a6a715f0a934ff0e0ad04/27948697511.pdf
- https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/baccba815ad819b830be99befc988601/sajuvifazopologodajodafu.pdf
- https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160e0bb5f4e5a2---80782253662.pdf
- http://www.leposeur.fr/site/upload/ckfinder/files/80610680810.pdf
- https://mabuksusu.com/contents//files/vetusa.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/633v7c3rcbtcgt7bvbt1n4lol0/7079778759.pdf
- https://gimenezricarte-deltabogados.com/ckfinder/userfiles/files/91770145663.pdf
- http://scoutpate.com/userfiles/file/24578270083.pdf
- http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607e4450ebfd1---7765890041.pdf
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16087af8d64b38---malerabofolatife.pdf
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/290a77142b01b75de0195d47efc6e5a5/83377815416.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=choleric+temperament+strengths+and+weaknesses
- 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_off0000de33.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE33 | 16792 bytes |
font_01_sfnt_off0000f645.bin3760f2554614269d9c4dfb6655ce82b21062832792d9c15165924c82874fe391 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF645 | 17344 bytes |
font_02_sfnt_off00012305.binb9ce4a8eb4d0fce7a7e1ac51607e68b581c04880ec07418ef209e566b7faded3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12305 | 11172 bytes |
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