MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a phishing or redirection scheme. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lure users to malicious sites via a screenshot-based lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 8
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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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://synerhu.ru/uplcv?utm_term=gta+liberty+city+stories+cheats+for+android
- http://hai-bi.com/uploads/files/202109051314291412.pdf
- https://bi-kiesabbau.de/cmsimple/images/file/87162138286.pdf
- https://esz.jp/img/editor/files/valowemokabowugumafa.pdf
- http://tabletopad.com/images/file/xuvagatadawilazolez.pdf
- http://lokalsport.no/userfiles/file/87517206712.pdf
- https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/uor62rilgm4rrf518cq19tl011/sojofexab.pdf
- http://consade.com/userfiles/file/67348355854.pdf
- http://espokebar.com/uploads/files/34102254158.pdf
- http://abwingssuffolk1.com/uploads/files/67128947006.pdf
- https://hkpefa.org/editor_upload/file/46922633322.pdf
- https://zlato-invest.cz/upload/files/laxagitax.pdf
- http://inoxbienhoa.com/upload/files/bavimadapoxopefati.pdf
- https://www.bakkersvlaanderen.be/resources/plugins/ckfinder/userfiles/0/files/64556595366.pdf
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1614f35962c21e---kunagamorexesa.pdf
- http://www.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/21625489488.pdf
- http://mackyz7automotive.com/js/upload/files/xakiwidozofefigubujifiri.pdf
- http://connect-event.fr/ckfinder/userfiles/files/77778549908.pdf
- http://ikkosushi.com/uploads/files/bisara.pdf
- http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/fd8e06064d4aa4566ad88dd243fc4348/99636240684.pdf
- http://metisentry.net/ckfinder/userfiles/files/67913766224.pdf
- http://bona-agra.pl/Upload/file/8701265603.pdf
- http://sameiroeventos.pt/ficheiros/felalidufan.pdf
- https://vegas-shop.net/uploads/files/silivadetodidi.pdf
- https://webmakler.org/userfiles/file/jezifuvasu.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_off0000aff7.binf924fe2fd5f7e2f4f885f79a7e76f6de51ef22e35fe8d1845946650d0e73beec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFF7 | 10868 bytes |
font_01_sfnt_off0000c913.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC913 | 16792 bytes |
font_02_sfnt_off0000e125.binca4508acb462b29a8fa8d071bfc29acf4010eb79b6bf6c84e6d7efa6cb04abdf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE125 | 13944 bytes |
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