MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable domains, indicating a link farm or phishing attempt. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic specifically flags this behavior, suggesting the document's primary purpose is to manipulate search engine rankings or direct users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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 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://guojingmall.com/userfiles/file///56155902294.pdf In PDF document text
- https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/aa9183679493b22b9534d6e218b075df/konud.pdfIn PDF document text
- https://autotrans911.com/thread/admin/uploads/file/vexunovumefe.pdfIn PDF document text
- http://oasis-inwaste.asia/files/file/potisezoxiner.pdfIn PDF document text
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a77a3590154---jatifapup.pdfIn PDF document text
- https://tigercabinetry.com/wp-content/plugins/super-forms/uploads/php/files/347ea6d203eb1ac70578aec0bd751e56/robit.pdfIn PDF document text
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/140853465e24a9ddf3045af2c5f0a691/35360997999.pdfIn PDF document text
- http://www.aluvascientific.com/UserFiles/file/670303233.pdfIn PDF document text
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/cmng19263moib4a3m47eebsh0g/19915996962.pdfIn PDF document text
- https://faresaldabbous.com/uploads/file/73742864823.pdfIn PDF document text
- https://dolcezzecaffe.it/file/difadafilu.pdfIn PDF document text
- https://keyseries.us/userfiles/file/44632996909.pdfIn PDF document text
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/uki5u8cvofm6d65v5f73fmasfq/819902159.pdfIn PDF document text
- http://sooclose.eu/upload/File/xebefusafe.pdfIn PDF document text
- https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/7f0d53f2a9195084e5e69699e5c67878/4714159282.pdfIn PDF document text
- https://rijst.nu/userfiles/file/digupemakinop.pdfIn PDF document text
- http://amajyuku.com/files/files/44859300101.pdfIn PDF document text
- https://bloc-immo.com/images/benipu.pdfIn PDF document text
- https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/1608100760594b---vibopotitinolunadidub.pdfIn PDF document text
- https://art-lamps-rali.eu/files/file/2964166437.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160afd1cfb1e99---5894061159.pdfIn PDF document text
- http://finalbrand.cz/upload/file/nunelevinofi.pdfIn PDF document text
- http://dansungsala.com/uploads/files/bopopadubovavatepoxuv.pdfIn PDF document text
- https://tannhatviet.vn/upload/files/tarusigibexujiwopagotud.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=ultrasonic+welding+horn+design+guide+pdfPDF 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_off00010cdb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CDB | 17352 bytes |
SHA-256: 6f7f1cc31012c4afaa3a78d33625205df0b3b8041ac15149fff0d3f6cd60b7d6 |
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font_01_sfnt_off00013a90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A90 | 11092 bytes |
SHA-256: 091e46ff43d7323c7f2d640000b90609578284be659d78f01dc86972786ef6ad |
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font_02_sfnt_off00015439.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15439 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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