MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external PDFs hosted on various domains, many of which appear to be disposable. The heuristic 'PDF_RANDOM_URL_LINK' specifically points to a suspicious PDF URL, and 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of link farming on potentially untrusted hosting. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious classification. No scripts were extracted, but the overall structure suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9958
Heuristics 6
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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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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://parkingparts.com/Upfiles/file/18532154039.pdf In PDF document text
- http://madang.eu/f_pds/fck/file/44436042192.pdfIn PDF document text
- http://meghdoothsuzuki.com/uploads/19982901096.pdfIn PDF document text
- https://okud-istra.hr/userfiles/file/xebomuvor.pdfIn PDF document text
- https://war-old.its.vn/new/userfiles/file/96641685801.pdfIn PDF document text
- http://olsztyntransportmedyczny.pl/userfiles/file/vefabofuradetariz.pdfIn PDF document text
- http://pulsarvn.com/media/ftp/file/28031547608.pdfIn PDF document text
- https://zhongzing.com/uploads/files/202109030310241557.pdfIn PDF document text
- https://aristi-trap.com/upload/users/files/sejudowajemekoxujabi.pdfIn PDF document text
- http://montpellier-business-plan.eu/mbp/upload/images/images/upload/ckfinder/74347416646.pdfIn PDF document text
- http://ediliziaunoaventi.com/userfiles/files/felafo.pdfIn PDF document text
- http://n2nnetworks.com/files/others/wanewuwapopeziki.pdfIn PDF document text
- http://ambulatorioveterinariovianello.eu/userfiles/files/sozudije.pdfIn PDF document text
- http://evaemlak.com/userfiles/file///nezaje.pdfIn PDF document text
- http://derp74.fooden.com/UserFiles/files/bodataro.pdfIn PDF document text
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138f2567dead---pukonadutujidum.pdfIn PDF document text
- https://vkgnassociates.com/dayafter/uploadimages/newsimages/file/98479115690.pdfIn PDF document text
- http://bdnchem.com/upload/files/75160902930.pdfIn PDF document text
- https://theptaynam.vn/upload/files/romivaxajuridilafope.pdfIn PDF document text
- https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/15d60d8c373a7f1d3fdebfc20e765c4a/65080364295.pdfIn PDF document text
- http://surmounttravel.com/userfiles/files/rinisivu.pdfIn PDF document text
- http://xn----7sbbgprpk7biiq.xn--p1ai/admin/ckfinder/userfiles/files/kizikitenibemalilovedu.pdfIn PDF document text
- http://studiotecnicostradi.eu/userfiles/files/46253710779.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=armenian+keyboard+for+androidPDF 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_off0000cdf9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDF9 | 17580 bytes |
SHA-256: 1b6bf62ce7f2f5e52b012dc3212eb2ca8fcc1caadb67956848eb36a41970bf59 |
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font_01_sfnt_off0000fb4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB4B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011362.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11362 | 10528 bytes |
SHA-256: 1e202a3435b26d4926138f3d7362da03d65d6945db5876d8ebde113464e433d6 |
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