MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. Heuristics indicate it functions as a link farm, with numerous URLs pointing to potentially compromised websites or disposable hosting. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings suggests the document is designed to manipulate search engine results or host malicious content. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://hkacca.com/userfiles/povulekokejobub.pdf In PDF document text
- http://malbreil.com/userfiles/file/zaronalinaxebabu.pdfIn PDF document text
- http://adamlegal.com/userfiles/file/tijosijaramemowuga.pdfIn PDF document text
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b95d0ea3fa4---21005931517.pdfIn PDF document text
- http://dent-pro.cz/pic/file/21968780553.pdfIn PDF document text
- https://betenagro.com/sites/default/files/file/kiwalavagakegidiratuvu.pdfIn PDF document text
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608bd52cb0e27---panegonal.pdfIn PDF document text
- https://verredistri.fr/xmedia/file/pivalemesudobizukugaz.pdfIn PDF document text
- http://precisionsurgicalworks.com/alpha/ckfinder/userfiles/files/89193160958.pdfIn PDF document text
- http://haumeaonline.com/userfiles/file/46279657544.pdfIn PDF document text
- http://life-homeshop.com/asset/uploads/files/gakurisodubemis.pdfIn PDF document text
- http://ayrh.internet-match.com/upload/files/jozosukukulagenevi.pdfIn PDF document text
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160925d7e82e84---3733299831.pdfIn PDF document text
- http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16073dfddb74ad---39982390638.pdfIn PDF document text
- https://www.agcontraincendios.es//ckfinder/userfiles/files/5888862450.pdfIn PDF document text
- http://animationcoach.com/userfiles/file/32672642285.pdfIn PDF document text
- http://coytex.net//ckfinder/userfiles/files/reporaf.pdfIn PDF document text
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132493e5fe38---modupedukapaxedejajijuw.pdfIn PDF document text
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b28390e750f---xajukapobuj.pdfIn PDF document text
- http://le383.com/uploads/files/16464387802.pdfIn PDF document text
- http://banlinhkienlaptop.com/userfiles/file/3220225140.pdfIn PDF document text
- https://elitstroycraft.ru/source/file/96615906591.pdfIn PDF document text
- http://dedanskecasinoer.dk/userfiles/file/94453628508.pdfIn PDF document text
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e93c2b61e90---satujuwufu.pdfIn PDF document text
- http://tecsun-moscow.ru/docs/file/42926018534.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=bostitch+electric+stapler+model+02210+manualPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ca45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA45 | 11224 bytes |
SHA-256: 086b6391df9411e6d08e2c20ea7d444ff22078e437c8c1f126c52abef3d2cd9c |
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font_01_sfnt_off0000e47b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE47B | 19864 bytes |
SHA-256: 9906ec3dcde450705253eb07bf8340197375849e8172868f9fbbdc74e9edccbd |
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font_02_sfnt_off00011696.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11696 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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