MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with numerous URLs pointing to potentially compromised or disposable hosting, designed to redirect users. The primary attack pattern observed is the use of a malicious document as an attachment in a phishing campaign, leading to exploitation for client execution via the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9827
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 http://gezond-trakteren.nl/kasteel-doornenburg-img/bestandenfile/gikojafezijuxaxije.pdf
- http://vhktn.at/images/content/files/38515074289.pdf
- https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/a41a7c97ab8cf3f61dfa30ab60db7290/gufex.pdf
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aed56334d42---41121262218.pdf
- http://kasargod.net/uploads/file/modiwigo.pdf
- https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/2a6dd892caab99d30140932e6f695928/90349050729.pdf
- https://www.groupenahno.com/wp-content/plugins/super-forms/uploads/php/files/edtgvk8issgks9m2450kcjk3ic/werufofitulefot.pdf
- http://beloezoloto.ru/userfiles/file/3524154097.pdf
- https://webtechnocrats.com/upload/file/tebiviwemuweta.pdf
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/dono8g78pia6snlsslb6osqcc4/mowopifat.pdf
- http://coss-wynn-reunion.com/clients/d/db/dbe3622004495b304d8703879a486b7d/File/jusolopovaputevilojagu.pdf
- http://www.zywawiara.pl/pliki/roxenizafozafewiga.pdf
- http://baigeleather.com/userfiles/file/72787888573.pdf
- https://sunarchegypt.com/userfiles/file/61496724814.pdf
- http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085c53c56fdc---89386961160.pdf
- http://sns.hu/_user/file/ritim.pdf
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/9fc638b02dcef9e00b304c68b4deb094/82654971615.pdf
- http://fw-simple.com/uploads/files/zujebepokapekivul.pdf
- http://computerdoki.hu/user/file/duxewisotejibibafekozola.pdf
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a10830d2c2---wutobesolizexew.pdf
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/160743de62e7f7---lepagojabojafuwuligig.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/ce35897c13747b7659b741f529ef2ab3/31389273057.pdf
- http://yummyschool.com/_UploadFile/Images/file/46626282940.pdf
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/bduvbqu98upd2kvf82milocvom/14035928059.pdf
- http://luluscafeonline.com/uploads/files/67668637514.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b09207cffb3---83867700090.pdf
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160d82f06274cb---31730136151.pdf
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/24b31cd73da5399487ce3d90f2ba708c/25022183198.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=the+fantastic+adventures+of+dizzy
- 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_off0000c55b.bin76e48fe69d9b40c2c19700e50444e96a9446dd75a0e0095da935c0fcbbb298bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC55B | 10828 bytes |
font_01_sfnt_off0000de6e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE6E | 16792 bytes |
font_02_sfnt_off0000f680.bin4bc508a82f917bb5927851dba789e67aee3eb44e247848359be189b85e6fd15b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF680 | 16816 bytes |
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