MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and numerous external URLs, including those hosted on compromised CMS uploads and disposable domains, suggests a phishing or malware distribution scheme. The primary function appears to be directing users to potentially malicious external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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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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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://smidgel.ru/uplcv?utm_term=juegos+mindfulness+para+ni%C3%B1os+pdf
- http://berrybucs1973.com/clients/3/3a/3a2d6910be1067feaf6dc79f90d505e0/File/niwatabuxupopegu.pdf
- http://x-site.by/upload/editor/files/9494597622.pdf
- https://ancoraeducacion.com/images/vidudulasodawav.pdf
- http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c161aeb26d8---jugamam.pdf
- http://tremonttemplemacon.com/clients/862779/File/47395106138.pdf
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16098c28a8a957---lofelugavigugupekufosiwum.pdf
- http://galsabino.it/userfiles/files/49532321528.pdf
- https://www.adom.biz.pl/ckfinder/userfiles/files/tibusunatikadedotifed.pdf
- https://www.educationsexuelle-ecole.ch/ck/ckfinder/userfiles/files/79095934893.pdf
- http://pitin-akutsu.com/js/upload/files/5813129601.pdf
- https://satybharat.com/ci/userfiles/files/20827860350.pdf
- https://mannerfeltdesignteam.se/ckfinder/userfiles/files/36548406880.pdf
- https://bestcaps99.com/ckfinder/userfiles/files/82588470444.pdf
- http://www.lugashotel.com/data/editorfile/80446043846.pdf
- https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160d1d29d583d2---wezedanizisapewiwava.pdf
- http://www.awakohchang.com/image/upload/File/3685023684.pdf
- https://zhbiotech.com/CKEdit/upload/files/mosuforosarudebukepan.pdf
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609e4072bf394---bunijokizikukagevipawi.pdf
- http://geoass.eu/userfiles/files/80003302776.pdf
- http://tubietelbar.hu/uploadfile/97050614423.pdf
- https://www.eos.org.eg/ckfinder/userfiles/files/92677893633.pdf
- https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/47oeocoqj10ns5n6vdfudica04/68009693289.pdf
- http://styropapex.pl/userfiles/file/87689253718.pdf
- http://abwcolley.com/uploads/files/pazexikoz.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_off0000f10c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF10C | 16792 bytes |
font_01_sfnt_off00010923.bin03f4c172ceb7ae9feef0364c38fa211910e88ccb7e900df2285e09a43bfbedf4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10923 | 11040 bytes |
font_02_sfnt_off0001224d.bin79b17dabd65c4fb482c9b73f3ddf76f4d9bab99ab22db2f0d419f603c6039384 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1224D | 19164 bytes |
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