MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains numerous links pointing to external resources, many of which are hosted on compromised WordPress sites or disposable domains, indicating a link farm designed to distribute malware. The presence of PDF_RANDOM_URL_LINK and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics strongly suggests a malicious intent to redirect users to malicious payloads. The ML classifier and ClamAV detection further corroborate the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://studiostocchi.eu/userfiles/files/ragifaxotuwunikukaned.pdf
- http://bestpokeya.com/uploads/files/61190520849.pdf
- http://www.globalnautique.nl/upload/files/vaburakuba.pdf
- https://uangraja.com/contents/files/latojaruwewutejuva.pdf
- http://www.hausman.eu/images/wyswig_images/file/29440919694.pdf
- http://hytechcommunications.com/userfiles/file/54749133875.pdf
- https://uzsienis.cvzona.lt/resources/img/files/sadir.pdf
- http://caratow.nl/userfiles/file/ritodakenaramib.pdf
- http://smartdeal.pl/files/upload/files/pudezudowanalote.pdf
- http://geodeslaboratori.eu/userfiles/files/movijifisikimo.pdf
- http://cycling-software.com/files/file/mitalazawijasuxevusavuro.pdf
- http://bxbrdh.marketsearching.com/upload/files/gafokedanases.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/v2k8v1m6pe615fero7e7kc6iv7/30743919149.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/mc4b418i8uns339eohbqllls54/14052408675.pdf
- https://olympicwroclaw.pl/zdjecia/fck/file/ramonetetexo.pdf
- http://projecthouse.bg/uploads/CKfinder/files/55249664923.pdf
- http://fxmeat.com/upload/file/2f0d189eaa741827b4011104937d0fab.pdf
- https://marikakozmetika.hu/editor_up/lakevemafukipididukozega.pdf
- http://synphabase.ch/upload/file/turizofofixi.pdf
- http://noavarservice.com/ckfinder/userfiles/files/71115458524.pdf
- https://mi-stores.com/basketballtotaal/images/editor/file/mafegexajojokowavobip.pdf
- http://bdsductri.com/upload/files/33934668683.pdf
- http://j1medical.com/uploaded/file/xokedux.pdf
- http://sunkamalzemecilik.com/userfiles/file/bunusaloburujofujetase.pdf
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/a83c5d2c615c5a2ca388c483b163f73c/rokun.pdf
- http://exteractif.fr/pictures/2/90006353766.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=watch+deadpool+2+online+free
- 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_off0000e342.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE342 | 16792 bytes |
font_01_sfnt_off0000fb54.binfad0a13f7aa5a87f1c328cc6ca526978b38d81a181da4d4bf97e9ac21684b338 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB54 | 18348 bytes |
font_02_sfnt_off00012a8b.bin6bc991985632bb856cf7a53181e0b70eec1c72b3ed9993e71f4b41e3f6aa07f1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A8B | 10660 bytes |
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