MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many pointing to compromised WordPress sites, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest a phishing or trojan payload. Although no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with malicious documents used for initial access via phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
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://crysiq.ru/uplcv?utm_term=warframe+how+to+get+frost+parts
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/hs4am1rgv858m8ha49ghd67o1c/fikulovimipararimadelo.pdf
- https://diphong.com/uploads/66222358508.pdf
- http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607aea90aa97c---39463031715.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1607d20b1a29c3---ruworaletorabos.pdf
- https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/2ba7e14bc3112590e9009ffc29a7a566/wudutuwafuwujuxekodavira.pdf
- http://bright-mineral.com/uploadfile/file/2021061717015778.pdf
- http://consulcongress.it/uploads/assets/file/5524728493.pdf
- http://cdmatik.com/uploads/file/15098023470.pdf
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ab4803a165e---sisotego.pdf
- http://parkhighclassof60.com/clients/871169/File/86517379138.pdf
- http://halongbaycruises.org/upload/files/gudenis.pdf
- http://conblocmanado.com/pics/file/10992420730.pdf
- https://biocoils.com/img/file/rigimubidemajuwomedol.pdf
- https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/88358d4677bcc2e467199565142c49a9/65223122527.pdf
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/18c2efa72e7a0f6c4d0b04e29d5b47e6/56383035395.pdf
- http://kmsenior.org/file/files/46863042250.pdf
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca57112c5e---22814194988.pdf
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b5df9d18f6---sogasapumapamodagajelupis.pdf
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/527bc224328eb00660650f1362f5e2e6/42046430091.pdf
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a85ba0e668f---71288877236.pdf
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/fa304131267628be8008f7bdd3d8478d/tirogazekalatunibe.pdf
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/160704a1ae39cd---51558876103.pdf
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/22c0d73cf362b9adc349d019af9f8ca6/jiropavud.pdf
- http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086b9462b59d---42206993999.pdf
- http://www.loicadesacavem.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160bd9414690bf---zitisawenu.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_off00011f87.bin65b4ac6d5128267234636794e70cbe9324d706967a2c12f90c7ef7f6fbb89eae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F87 | 10640 bytes |
font_01_sfnt_off000137fd.bin434906fb225bb2898d851fadc1e22a33943ea64baed219bfdc59fdbb8bccf1d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137FD | 17104 bytes |
font_02_sfnt_off0001649d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1649D | 16792 bytes |
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