MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
The PDF contains numerous links pointing to external websites, many of which are hosted on compromised WordPress installations or disposable domains, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery through these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://laborke.ru/uplcv?utm_term=best+video+editing+app+for+smartphone
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613b28d5aabf4---nawibukokidibiwinefu.pdf
- https://bywuf.org/upload/editor/files/lumejiz.pdf
- http://sokole-tps.pl/userfiles/file/pibolisazizuginivivawo.pdf
- https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/3ef3fea9e07cb4c1b65e72d1005b0722/vipamabasupalojagosebe.pdf
- http://sportservistocik.cz/UserFiles/File/gilujizasitajunom.pdf
- http://pop-around.com/file_media/file_image/file/29892805542.pdf
- http://machin.kr/userData/board/file/981394107.pdf
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/8f7765cefee1d7b34c70b208ee99ff42/mifosukigojexuzifeg.pdf
- http://galerie45.com/userfiles/file/27302746614.pdf
- http://hytechcommunications.com/userfiles/file/loguweme.pdf
- http://elfast.ru/userfiles/file/73345118812.pdf
- http://oris-am.com/editor_up/30848298943.pdf
- https://liftsystems.ro/LiftFiles/file/mozesifibupobiku.pdf
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/161408bf27fd81---71663690863.pdf
- http://mastrodibaglio.it/userfiles/files/27104552131.pdf
- http://thucphamchucnangmy.vn/uploads/files/67086105010.pdf
- http://the100voicesofgospel.de/fichiers/newsletter/file/79996988114.pdf
- https://www.bussmann-tiefbau.de/ckfinder/userfiles/files/gotab.pdf
- https://autohausnschmidt.de/userfiles/file/woxaxotiwujewepefakafinip.pdf
- https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/hs4puku0p7i1q53o8ndgbpupgm/17006404268.pdf
- https://maryamghiasi.com/images/upload/files/runalovelewupomomafuxidon.pdf
- http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1613682c4de493---zezogokisolapi.pdf
- http://mayinmaunhat.com/upload/files/raxijuzel.pdf
- http://superfasttv.com/uploads/files/vitige.pdf
- http://romovi.net/sgi_userfiles/userfiles/files/51358172187.pdf
- https://navliecky.net/userfiles/file/46560000711.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_off0000fa55.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA55 | 16792 bytes |
font_01_sfnt_off0001126c.binf470f97b975cbc4abbac9e765d5710d0f41dc6e48d01ec7797849caaded6fa69 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1126C | 11020 bytes |
font_02_sfnt_off00012baf.bin4411af78ceb87e8934bbc5d86df989fc6f1c2ba575a8e5eea15857d39d5d2b48 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BAF | 17760 bytes |
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