MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file containing embedded JavaScript, which is a common technique for malicious PDFs to execute code or redirect users. The presence of a link farm pointing to multiple distinct hosts, some of which appear to be compromised WordPress uploads, further indicates a malicious intent, likely for phishing or malware distribution. The ClamAV detection and ML classifier strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
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 http://jszl-rolls.com/filespath/files/20210909203604.pdf In PDF document text
- http://beverly.kopanramen.com/uploads/files/famarakasoxafimuf.pdfIn PDF document text
- http://bertrandetgastineaudesigners.com/userfiles/file/kuninebobulerilibapojiwu.pdfIn PDF document text
- http://medrea.ru/upload/files/bukabiguvosofuratuxeru.pdfIn PDF document text
- https://cornwallstaffagency.com/userfiles/file/wetom.pdfIn PDF document text
- https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/909a78395ae546fd8e96a436854a0767/dezajedisakoreravad.pdfIn PDF document text
- http://popnmusic.fr/userfiles/file/63499471293.pdfIn PDF document text
- http://kitpaisal.com/mypicture/file/jajaxajazo.pdfIn PDF document text
- http://tylincms.com/userfiles/files/32209153351.pdfIn PDF document text
- https://birgatour.mn/js/ckfinder/userfiles/files/pavipagigawomopiwese.pdfIn PDF document text
- http://sov.tranovice.org/webpagebuilder/ckfinder/userfiles/files/77708015634.pdfIn PDF document text
- https://beaumont-residence.com/wp-content/plugins/super-forms/uploads/php/files/77tvt3e43qd47d4mkdflsndlan/75142251885.pdfIn PDF document text
- http://fisioterapiasuzzara.it/userfiles/files/9797668500.pdfIn PDF document text
- https://zlatartopalovic.rs/files/9271562996.pdfIn PDF document text
- https://renhedc.com/uploads/files/202109151233117065.pdfIn PDF document text
- https://sca-eagleegg5k.com/ckfinder/triplebuserfiles/file/83883559140.pdfIn PDF document text
- http://pushgroup.lv/userfiles/files/gebifelixe.pdfIn PDF document text
- http://basyapiemlak.com/yukleme_klasoru/userfiles/file/dofuzewu.pdfIn PDF document text
- https://vetregistr.com/ckfinder/userfiles/files/9791738467.pdfIn PDF document text
- https://madhubanindiancuisine.com/nbloom/fckuploads/file/76354057625.pdfIn PDF document text
- http://nakloboucku.cz/uploaded/file/17935858837.pdfIn PDF document text
- https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/ajol818vcnkd4ejd2igmclcp01/tinaxinatutibidexafiw.pdfIn PDF document text
- http://watthaistuttgart.de/userfiles/file/48825375531.pdfIn PDF document text
- http://dae-young.kr/upload/fckeditor/file/soxejazawabenifunoxer.pdfIn PDF document text
- https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/cb3c95ef7c97a5cdffc726bee15074f9/bililabawotofezugoj.pdfIn PDF document text
- http://coachhouse.info/assets/file/605272199.pdfIn PDF document text
- http://www.depomatrial.com/file/wimawateneduxino.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=sniper+fury+cheat+enginePDF 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_off0000d0ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0AB | 10716 bytes |
SHA-256: 1573feb94189c4a96f658bcc76e0aca85ca2ed5e9766e708c8b34dd3af2199ee |
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font_01_sfnt_off0000e945.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE945 | 17876 bytes |
SHA-256: 63ebff7c8739579bec1a48d39d96f2e0c036bd6db61196aa585ec3bdceaf1e3e |
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font_02_sfnt_off000117a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117A5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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