MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised websites or disposable hosting, suggesting a link farm for SEO poisoning or phishing. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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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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://catamma.ru/uplcv?utm_term=samsung+galaxy+s20+plus+vs+iphone+12
- https://b2b-intelligence.it/uploads/file/88900473437.pdf
- https://jakspravnenapsa.cz/userfiles/file/zotufanukusupuwesokojot.pdf
- http://piannocreativo.com/js/new/fckeditor/userfiles/file/615472117.pdf
- https://atasuorganiktarim.com/upload/ckfinder/files/38803891795.pdf
- http://haustechnik-hagenauer.at/magizerigejit.pdf
- http://kunmobile.vn/files/uploaded/20210913/file/50564535955.pdf
- http://yenidenyuzlendirme.com/ckfinder/userfiles/files/71053921426.pdf
- https://vjlabor.pitscovn.com/uploads/Upload/files/guvowinatidajizidexu.pdf
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/16140e850c6f39---nurifefo.pdf
- http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/161412ea2adb68---lunenilu.pdf
- https://fulzugaskozpont.hu/files/xuxoguwopenexekepinunu.pdf
- https://groupunsur3.com/contents/files/mekewi.pdf
- https://panegovernance.com/ourprojects/chowki/UserFiles/file/79425385518.pdf
- https://jajugroup.com/ckfinder/userfiles/files/nemanasu.pdf
- https://techielingo.com/fck_uploads/files/xoseforuri.pdf
- http://drumlockingclamp.com/FCK_Editor_Images/files/sozosabijubibixevafinopej.pdf
- http://laxycoffee.com/upload/files/bilupojivisinorirawejuj.pdf
- http://xn--80aap0abfiql8h.xn--p1ai/admin/ckfinder/userfiles/files/dopulabugepijoge.pdf
- http://interel-rus.ru/test/sites/default/files/file/befiselabobipet.pdf
- http://csc025.com/userfiles/file/20210903225615_g9blud.pdf
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161446370d7598---48738095242.pdf
- http://insei.eu/userfiles/files/84654701828.pdf
- http://architettoseneca.com/userfiles/files/xomufotojajidodibejeza.pdf
- http://metabolizmusonline.hu/images/upload/file/19540111650.pdf
- http://jmestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/63276011245.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_off0000b12d.binac52f45772ed638cca0c93de5fa4a0b0e54c48d1a13341621fb9a908ea75f8ee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB12D | 15340 bytes |
font_01_sfnt_off0000d863.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD863 | 16792 bytes |
font_02_sfnt_off0000f07a.bine42c8d1e389a17b0c93c638027921267c32ac09c2cf7182af84b36a59ad219b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF07A | 11252 bytes |
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