MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on disposable domains and appear to be part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of PDF_RANDOM_URL_LINK and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this, suggesting the document's primary purpose is to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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 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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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 https://wastran.ru/uplcv?utm_term=best+social+networking+apps+for+android PDF link annotation
- https://familienbilstrup.dk/ckfinder/userfiles/files/39160056482.pdfIn PDF document text
- https://festacontinua.it/public/file/kunijig.pdfIn PDF document text
- https://srmhomes.com/images/bulk_images/files/nozadesujigetojem.pdfIn PDF document text
- http://hillsdalehorseboarding.com/ckfinder/userfiles/files/koniled.pdfIn PDF document text
- https://havilahbuilders.com/userfiles/file/fakaxegofekodusedi.pdfIn PDF document text
- https://bisleri.genefied.co/ckfinder/userfiles/files/80901569334.pdfIn PDF document text
- http://goldstecq.com/userfiles/file/buraxomibowewudopev.pdfIn PDF document text
- http://cegled.varosom.hu/userfiles/files/49530694651.pdfIn PDF document text
- http://ipcmanpower.com/admin/style/images/userfiles/file/41227944311.pdfIn PDF document text
- http://dinskayarealty.ru/media/file/kamaxumidiga.pdfIn PDF document text
- https://keluargamimpi2.com/contents/files/93754080244.pdfIn PDF document text
- https://12shio4.com/contents/files/21599502715.pdfIn PDF document text
- https://et-auditing.com/userfiles/files/12534374348.pdfIn PDF document text
- https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/76890051780.pdfIn PDF document text
- http://www.tomasjelinek.com/img/pub/file/lunidunekuw.pdfIn PDF document text
- http://acevina.com/webroot/img/files/95504099296.pdfIn PDF document text
- https://www.artikel238.nl/emmwebbit/resources/ckfinder/userfiles/files/91755051812.pdfIn PDF document text
- http://projecthouse.bg/uploads/CKfinder/files/dixolafubixixikuxe.pdfIn PDF document text
- https://www.almuhja.com/ckfinder/userfiles/files/83085075356.pdfIn PDF document text
- http://bwemfjhjk.friend-match.com/upload/files/51740703099.pdfIn PDF document text
- https://southernwashpros.com/nbloom/fckuploads/file/15010057357.pdfIn PDF document text
- http://keacg.com/upload/files/novobixudikalemajasonufe.pdfIn PDF document text
- http://bige.vn/uploads/userfiles/file/36225864086.pdfIn PDF document text
- http://www.patriarca-batiment.com/ressource/site-image/files/matejaguviwebefezuf.pdfIn PDF document text
- https://it-remarketing.pl/app/webroot/media/files/83508652148.pdfIn PDF document text
- http://yangpupark.com/uploadfile/files/nafujurodalev.pdfIn PDF document text
- 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_off0000d8ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8AE | 17392 bytes |
SHA-256: 5a748998c657fa27329c03666eaa4ee251daa8da88f4391307388a42f701d7a4 |
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font_01_sfnt_off0001059f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1059F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011db6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DB6 | 11024 bytes |
SHA-256: 22070e706d77b6017749521da462de25981589be03aaa60eb68c86eb7d2430aa |
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