MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites, that likely serve as a link farm to obscure the ultimate destination. One prominent URL, 'https://inwebjor.ru/uplcv?utm_term=lightroom+premium+apk+download+new+version', suggests a lure for downloading software.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://inwebjor.ru/uplcv?utm_term=lightroom+premium+apk+download+new+version
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec6e613071---silifexopurojef.pdf
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16093e7ebf3065---60308981708.pdf
- http://adabaskimerkezi.com/upload/file/48140344916.pdf
- http://kapsalonvogue.nl/files/file/88132704559.pdf
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/18c028653c8c8984e7d44fca02400c7a/vojudefuxejewexozugiwo.pdf
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c188c4392---6227811991.pdf
- https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/a9a14ce0166eb09bddfb7278babe498f/kaxunizewuxotigamidenawub.pdf
- http://mirandatutoringcentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a3db99cc112---raloxolafezoti.pdf
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/achkm15sna3u5k79gg1jhi5nb5/79524355746.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/lpacepj2qgt9tuogpk1sbroob6/losadupagobawodopiw.pdf
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2bb720ab37---topufafokiwidediziv.pdf
- https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/n9u44c9okskcjcdp9ptmoosdlh/29705634118.pdf
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091d1196be81---79801178150.pdf
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16090a6e794a49---10046567266.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- 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://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ed48.bin303009994f99e0da05f0ae2bf8378a647b6aacd827a7382ba65494091ffd379e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED48 | 5412 bytes |
font_01_sfnt_off0000ffa5.bindaaf513b4b6fc36bff4b163417f9ef14e163412dd2b61c781a73ce0363e23042 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFA5 | 12172 bytes |
font_02_sfnt_off0001271c.bin1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1271C | 4324 bytes |
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