MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. It also features a link farm pointing to multiple domains, some of which are hosted on compromised WordPress sites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://giteduguedesboires.fr/userfiles/file/wabelolomotesuxavatal.pdf In PDF document text
- http://yjccnc.com/upload/files/zekos.pdfIn PDF document text
- https://emilline.dk/ckfinder/userfiles/files/kolivero.pdfIn PDF document text
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/hclkv7gs8uured75sj2l1sbk51/seximogora.pdfIn PDF document text
- http://tucsokszekszard.hu/images/news/file/11176542480.pdfIn PDF document text
- http://hutbephottaihaiphong24h.com/upload/files/18486295758.pdfIn PDF document text
- http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/zinerofuz.pdfIn PDF document text
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137764a410a5---waronusujel.pdfIn PDF document text
- http://www.contectrade.hu/fckfiles/file/15360487598.pdfIn PDF document text
- http://holzweiss.at/95935153456.pdfIn PDF document text
- http://av72-reklama.ru/userfiles/file/16310174223dacf2ef35050ca72743.pdfIn PDF document text
- http://avalon-essenzen.at/userfiles/file/zupiziku.pdfIn PDF document text
- http://standartbio.com/fckfiles/file/41821076895.pdfIn PDF document text
- http://hrampetraipavlavosstanovlenie.ru/content/images/user/file/46680630026.pdfIn PDF document text
- http://serdceprirody.ru/userfiles/file/43109862581.pdfIn PDF document text
- http://vako.vn/app/webroot/uploads/files/mubamidajug.pdfIn PDF document text
- https://gelblighting.com/userfiles/files/piruziwugenuwus.pdfIn PDF document text
- https://raselapp.com/userfiles/file/39772754293.pdfIn PDF document text
- https://noticky.net/akce/fotky/file/xuxugulujonexu.pdfIn PDF document text
- https://sskundal.com/userfiles/file/35114306194.pdfIn PDF document text
- https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/p05darm3i9jibpsorr6jt34kbg/28757761195.pdfIn PDF document text
- http://sitarofindiamd.com/userfiles/file/83167350137.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=hangouts+apk+for+iosPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bfbf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFBF | 10536 bytes |
SHA-256: 285a6118efa81b420a6f28be2abda55a87fe88cbb11395f0d54278b546336e3f |
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font_01_sfnt_off0000d7e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7E0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000eff2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFF2 | 20588 bytes |
SHA-256: 7ac13d80847137bb12064c45606c5615c691f09b6eb17ceb516ed73b34caaad4 |
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