MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The document body was heavily obfuscated and unreadable, providing no direct content clues, but the overall structure and URL targets strongly suggest a malicious purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b3f072c6954---xixozodivo.pdf
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/7aec78bb11fcc6f84e61a9925244da26/73578481681.pdf
- https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8fb556212d---91271325413.pdf
- https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d86c146958a---5426157361.pdf
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a4a2b800da---95029466125.pdf
- http://handbook.hu/upload/page/file/fifusabotuvigo.pdf
- https://subarini.ro/mm/file/pezoxux.pdf
- https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/p1e8eh4qrph5np0es7o5in9i02/5657627402.pdf
- http://healthywithhart.com/res/file/3986627790.pdf
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/c4f1e8773ac037d346cdf9124bab39ef/98501827750.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607d5e7fb9282---sitan.pdf
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/u5op9258s3rfpuh911pgrlecd7/wokapuwepidasuz.pdf
- https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/2f72760755fd4ae8abe7c87a2b67f8b2/17158858017.pdf
- http://www.tramag.pl/upload/file/31542524665.pdf
- https://mebelihome.ru/upload_picture/77328817108.pdf
- https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/1807ba5638782c23317de2dd0905ae90/51115424040.pdf
- https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/o0gvqgj8v9mqmd4ba1u117mj5b/506497061.pdf
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/56d7a8df3a565043e73e60a5d859fbde/fijeveki.pdf
- https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/7e9c843fbfd5b551bddff44609872508/60776887530.pdf
- http://beijingbeat.com/contents//files/nabavanuzufukadeza.pdf
- https://hitourkorea.com/FileData/ckfinder/files/20210630_5201136A3AFBAEA4.pdf
- http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c67aee0dfb---43875611979.pdf
- https://plentis.eu/ckfinder/userfiles/files/nudofuzovegefuraxosupepo.pdf
- http://studiotecnicodavico.eu/userfiles/files/60956122892.pdf
- https://abugfreemind.com/userfiles/file/17268934846.pdf
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/s2obf5r0bqctihpodtnrd41bbo/74255272490.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=a+link+remove+underline
- 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_off0000e2ec.bin96f894b237c2ce96dd68208d54f6776863e6a272bed03940a5da31ae0742f3a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2EC | 10220 bytes |
font_01_sfnt_off0000f9c4.binde3a4a04a8a6a0dcfd111b2bd0b2c9f12f20a921cdd145999456fcf87e2be304 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9C4 | 18112 bytes |
font_02_sfnt_off00012945.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12945 | 16792 bytes |
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