MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics indicate the PDF functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms. The document body is unreadable, but the presence of numerous PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings strongly suggests a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
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://carnavaldemarbella.com/Senegal_5/Content/files/userfiles/file/noziwijofudobixajawe.pdf In PDF document text
- http://abbuffalowings.com/uploads/files/tenemabobasagejezum.pdfIn PDF document text
- https://marlin-aquarium.ru/ckfinder/userfiles/files/68211433965.pdfIn PDF document text
- https://thic.net/plugin/ce1/ckfinder/userfiles/files/52035907851.pdfIn PDF document text
- https://shastriratanchatterjee.com/ckfinder/userfiles/files/sasasu.pdfIn PDF document text
- https://askisan.com/upload/ckfinder/files/48328504443.pdfIn PDF document text
- https://honkakuji.jp/honkakuji/images/ckfinder/files/70425533529.pdfIn PDF document text
- http://bankerz.in/qpic/files/37391320625.pdfIn PDF document text
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/e8ea77c7d9c0a68746118b53e74b4a79/92032592277.pdfIn PDF document text
- https://technoarc.net/userfiles/file/64581233962.pdfIn PDF document text
- http://agriturismolataggiasca.eu/userfiles/files/31063266023.pdfIn PDF document text
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613c0c21e39a2---refetozodesudetukuvoritep.pdfIn PDF document text
- http://agapetown.net/ckfinder/userfiles/files/lixosuneninanitalasurotez.pdfIn PDF document text
- https://biholka.cz/uploades/userfiles/file/nepofejatejiwasef.pdfIn PDF document text
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/db1b86f867d6fa21342c63ec3c0895bb/vifirovamegiwujuxuduge.pdfIn PDF document text
- http://e-menu.hu/editor_up/gelijolibibefegivali.pdfIn PDF document text
- http://musorcentrum.hu/files/article/file/daguwufowimujidolixa.pdfIn PDF document text
- http://dobrejaja.com/Upload/file/mumuwanamadudegume.pdfIn PDF document text
- https://nitm.ac.in/nitmeghalaya/ckfinder/userfiles/files/ropewapomajedisugosuko.pdfIn PDF document text
- http://forepic.com/_UploadFile/Images/file/gesavevilofofomiw.pdfIn PDF document text
- http://eortak.com/img/fck_temp/file/bonesularapatalelosod.pdfIn PDF document text
- http://xn--80aadcnaeutgftohcogh8i8dsc.xn--p1ai/pict/file/28845178939.pdfIn PDF document text
- https://istruttorecinofilo.it/userfiles/file/14955993735.pdfIn PDF document text
- http://shtaket46.ru/page_edit/_samples/userfiles/files/86161281761.pdfIn PDF document text
- http://guides2alpes.fr/uploads/file/59509109717.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=my+hero+academia+training+of+the+dead+dubPDF 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_off0000b2c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2C7 | 11056 bytes |
SHA-256: 3c57e2f1af42bc6c771b70c928374aaf56fefa089c6f6787f73d916456bc91e5 |
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font_01_sfnt_off0000cc2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC2F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e441.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE441 | 19380 bytes |
SHA-256: fd1fbb02b2452aa8e2425c7d3093d5431acef2ac429cbc803568f0cc046b7a6f |
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