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 embedded URLs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic confirm the document's purpose is to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://crewmak.ru/uplcv?utm_term=gta+real+life PDF link annotation
- http://csaladiegyteruautok.hu/userfiles/files/jumabakegufezi.pdfIn PDF document text
- https://rallstarawards.us/nbloom/fckuploads/file/85744380250.pdfIn PDF document text
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d2baf93bf9---rikurepepidanulatubus.pdfIn PDF document text
- http://locum-system.pl/userfiles/file/77768014590.pdfIn PDF document text
- http://shethof.ch/cgi-bin/dynamisch/file/getuwif.pdfIn PDF document text
- https://doanhnghiepvietnam.org/img_duhoc/files/70482188038.pdfIn PDF document text
- http://hengtongrongshang.com/jingkelun/userfiles/files/20210925172251.pdfIn PDF document text
- http://back2wood.de/userfiles/file/pidukalisagubarulul.pdfIn PDF document text
- http://koryosushi.com/uploads/files/jusanexonejoso.pdfIn PDF document text
- https://architektor.ru/uploads/file/folod.pdfIn PDF document text
- https://interstudy.net/userfiles/file/kanizavetenitawone.pdfIn PDF document text
- http://logtech.cz/foto/Image/file/65867635186.pdfIn PDF document text
- http://itagqatar.com/itag/file/files/35644491071.pdfIn PDF document text
- http://studioarchperissinotto.eu/userfiles/files/79767578441.pdfIn PDF document text
- http://evo-models.com/uploads/userfiles/files/suwigazuzosabokujutu.pdfIn PDF document text
- http://asacnfservices.com/ckfinder/userfiles/files/metutubuzugodivaluvuvuse.pdfIn PDF document text
- http://ad.ditroinfotech.com/laportal/ckeditor-ckfinder-integration/uploads/files/tisisalakumixomorekonero.pdfIn PDF document text
- http://luluscafeonline.com/uploads/files/renuxa.pdfIn PDF document text
- http://marine-inox.com/i/File/1274915026.pdfIn PDF document text
- http://normel.org/files/upload/file/vuworemibidixatabup.pdfIn PDF document text
- http://ambulatorioveterinariobubiniregini.eu/userfiles/files/80620301159.pdfIn PDF document text
- https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/6a38c1709e6f501acd9d3447b7f2ecfe/93833587043.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_off0000bc9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC9B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d4ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4AD | 17924 bytes |
SHA-256: 07ba8c37874e7bad792beef0b57672d9edac07d77caca9f61f4cd7320d289561 |
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font_02_sfnt_off0001033c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1033C | 9856 bytes |
SHA-256: e11ec2eea9cdec8cffe5b90d5ea59c28cea123f0fe5398287cf6fdcc0663b626 |
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