MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ClamAV and an ML classifier, with heuristics indicating embedded JavaScript and external URI links. The PDF appears to function as a link farm, directing users to various external sites, some of which are hosted on compromised WordPress installations. The embedded JavaScript likely facilitates the redirection or further malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
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 http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1f6f95e9e1---14469696957.pdf
- https://aronabritcan.com/userfiles/file/87410987443.pdf
- http://pchs1967.com/clients/b/b3/b38b0c0be7ceca4b309dcb684d78a7c5/File/zaxazosisavidal.pdf
- http://strandedtattoo.net/file/39921953184.pdf
- https://tmtteks.com/files/vulegomitikemixebamuwod.pdf
- http://gdfsztal.com//uploadfile/files/mulofipanoket.pdf
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c647b5f294---kavatanavumapemiretininaf.pdf
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2bae76b88a---1071336480.pdf
- http://4998horo.gmmwireless.com/contents/files/25933147095.pdf
- https://partnyor.az/userfiles/file/27389687678.pdf
- http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609abcdd9a519---16064004892.pdf
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/d4d55e9c8ac62788f1ec4121c9b01a56/70176338930.pdf
- http://nhasachconggiao.com/luutru/files/51370559816.pdf
- http://www.gleason.com.au/application/third_party/ckfinder/userfiles/files/2671473051.pdf
- https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/061172cc9a257ea4b449b3d0cbf6b13d/zurosigedaxokeb.pdf
- https://www.hamburgeriaagricola.com/wp-content/plugins/super-forms/uploads/php/files/k0a4aqrim3endiqm5dkttn707l/disamukemusi.pdf
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/h7200g2k930n59rhr0dgdt49mv/9980681413.pdf
- http://yesilderecine.com/admin/editor_resim/file/24859301207.pdf
- https://tramtron.vn/uploads/files/files/pewesafipif.pdf
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606d31228f1dd---70452960666.pdf
- http://casadiriposomarsala.it/userfiles/files/dajusoxune.pdf
- http://rulada.by/upload/editor/files/lafebitevusukanovuwej.pdf
- http://sbstroy53.ru/img/files/50518950.pdf
- https://ecohort.com/userfiles/files/fevij.pdf
- http://maslag.eu/userfiles/file/39063511329.pdf
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b33728a8619---latipabo.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=how+much+do+foster+carers+get+paid+in+western+australia
- https://mediacentre.heathrow.com/js/ckfinder/userfiles/files/81668962998.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_off0000e12a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE12A | 16792 bytes |
font_01_sfnt_off0000f93c.bin12b54204abee07f385e173eda3039e18c0ac265c39749b1c9f8034f758e93a7a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF93C | 17172 bytes |
font_02_sfnt_off00012603.binc0218b562444503d3f9f617f05a578e33fa454d4916267785a376c4bbb84686a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12603 | 11244 bytes |
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