MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to numerous compromised WordPress sites and disposable hosting domains, likely to facilitate the download of further malicious content. The presence of a 'download button' lure further supports a phishing or social engineering attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=djamila+ribeiro+livro+pdf
- https://oazapiekna.com/zdjecia/fck/file/kotabipumixuvowenuf.pdf
- https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/qv1irb606r155rd7lvi929ndnh/94542414569.pdf
- https://hijaulumut.com/contents//files/sixifofaselopulewimowumub.pdf
- https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/10f1ef669fe41e9cf3b414960ff09999/dafuf.pdf
- http://leebyunghun.kr/new/upload/board/files/bijazinisuvupazotefe.pdf
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16104b124a96df---wobutizukeranonaburoxirom.pdf
- https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/fpotpjaer8vtgrjiimqluerhuo/92589184818.pdf
- http://boathousebrokerage.com/userfiles/file/lawan.pdf
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608e985cadfa0---debetowatajugesot.pdf
- https://rhuyscampingcar.fr/images/files/bomotewavivejoliraxeve.pdf
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/5c3715cc3b0dc13ff27b25d160a2c3d8/komibe.pdf
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/160821fafbd30e---fuvokujixovezaw.pdf
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/9589c574d572d4353961e1bda93b7813/51832480305.pdf
- http://ristorantebiscione.com/userfiles/files/10500969767.pdf
- https://enkaotomatikkapi.com/depo/sayfaresim/file/6847612726.pdf
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/97rfq55cdt524v0npskjdct7q0/86704059319.pdf
- http://www.pattyn360.com/upload/forum/files/20126476903.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160e003585e204---vamun.pdf
- http://careerdynamic.com/clients/3/3d/3d9dba0a3645e5854abf1db7654b9c86/File/27733803639.pdf
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/gfqe9qiq2looce6uu1ema05v6u/48925312689.pdf
- http://akcjonariusz.com/UserFiles/file/ligifixe.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16118f47178dbc---lumuwiwigogefeguletawebi.pdf
- https://limsurdua.com/contents//files/rufunalunevigiko.pdf
- https://kocarbon.vn/luutru/files/motuk.pdf
- http://studioboscono.it/userfiles/files/bezotukadosa.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_off0000ef89.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF89 | 16792 bytes |
font_01_sfnt_off0001079b.bind5684c8796dfe8e7e55cc1e37219b64f642d0ca32aa6a68b37bed361d5bba3c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1079B | 19396 bytes |
font_02_sfnt_off00013a80.bin0e50dcb6f6a370aa4c1cc7251793c0cdcf76837309acffc337600047e9329be6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A80 | 10628 bytes |
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