MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Numerous embedded URLs point to potentially compromised or disposable hosting, suggesting a phishing or malware distribution scheme. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this, indicating the document is structured to host a large number of redirect links. No scripts were extracted, but the overall structure and URL patterns are consistent with a phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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 https://oniceh.ru/uplcv?utm_term=disc+dj+3d+mod+apk
- https://ville-saintleonard.fr/pdf/tenitujunofali.pdf
- http://puntolinea.org/userfiles/files/47227315904.pdf
- https://dialogueinpraxis.net/files/docs/jejowojesusaxadewotunamud.pdf
- http://vdi.vn/userfiles/file/34919154623.pdf
- http://xn--b1afklwjc5g.xn--p1ai/ckfinder/userfiles/files/34377051226.pdf
- http://terredellamagnagrecia.com/userfiles/files/83843448431.pdf
- https://nucamsa.es/userfiles/files/jitorisadeximibisatagom.pdf
- http://didaconcept.com/admin/fckeditor/file/debobar.pdf
- http://cerritos.songhakbbq.com/uploads/files/junotila.pdf
- http://lnyuanzong.com/uploads/files/20210916212936.pdf
- http://villa-carlshorst.de/sites/default/files/file/lovugufeveba.pdf
- http://baohanhranghm.com/upload/img/files/sibexaso.pdf
- http://chapaconoticias.com/assets/ckfinder/core/connector/php/uploads/files/zoniki.pdf
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/c96c602da4c751200c0e5bbb039c4add/79023618671.pdf
- https://epgeptech.hu/ckfinder/userfiles/files/nulowe.pdf
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/b684667ba26190b330a606386271bd2d/pomonu.pdf
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136439b43a31---48717077980.pdf
- http://abwjefferson.com/uploads/files/65513995576.pdf
- http://ouhkpthaa.org/userfiles/sopagefaremod.pdf
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/161411828b07f3---16322684556.pdf
- http://erpos.sk/data/files/27298840532.pdf
- https://e-uchebnici.com/img/file/baradet.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/brmilshkpbppakccmv9taqn0j1/sewazomifedobod.pdf
- https://cosplay-expo.it/ckfinder/userfiles/files/nafar.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_off0000db63.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB63 | 16792 bytes |
font_01_sfnt_off0000f37a.bin63a73821044266a9c04c4517ea38edb636afb474ce396dc03aa095ee3a14cd6b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF37A | 10592 bytes |
font_02_sfnt_off00010ba5.bin6158e019e690948ad60fde899ca64794ca7189eb33bd295e8af3bde68d15bce9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BA5 | 19052 bytes |
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