MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites, suggesting it functions as a link farm to distribute malicious content or conduct phishing attacks. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, providing no direct user-facing lure.
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 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 https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/fbfd4993c8d6f35795f279be479a8618/67542333700.pdf
- https://ozmutludokum.com/userfiles/file/gubizagarowivuliwipunizu.pdf
- https://inmaabiladi.com/userfiles/files/95234794395.pdf
- https://atlastoursntravels.com/userfiles/file/samimipadalifuxeniwabem.pdf
- http://pokemom2.com/uploads/files/98434737696.pdf
- http://lookkorea.net/userfiles/file/78784922920.pdf
- http://degeninhotel.ru/admin/ckfinder/userfiles/files/gagogagevamifibimasavop.pdf
- https://namdolove.com/FileData/ckfinder/files/20210531_286A2FB5285ABB6F.pdf
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee550365b52---relakukadorifebana.pdf
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/ff2335e085b3ca48a05d74ce1490afef/danawixe.pdf
- http://www.apsetedavisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076dda02fccd---xoxojolezovukutobefupifev.pdf
- https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/bab9c77c8c3682196f376bb5fcee4052/kunitubosawutul.pdf
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/b4f425536606b73bd0dd3848e8e60d58/bewaxevegudosinujejaf.pdf
- https://tepihtrava.rs/files/tagugufidagatemikozos.pdf
- https://www.antoniopopolizio.it/ckfinder/userfiles/files/rusefukuwu.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1afd2b8efa62c2da819a56cc832c6d33/39896509305.pdf
- http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607819883986e---37534831862.pdf
- http://busankid.com/webfiles/board/file///70521741565.pdf
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ac36aa8fa20---felesifov.pdf
- https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160f4ab85ca29d---pufoko.pdf
- http://dioceseofniranam.org/userfiles/file/59378168383.pdf
- http://www.nowsingapore.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/1609e60dc9b2d4---lubefavuzobogoro.pdf
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/mgld1jkqova710cc56m2jqp1dd/jibizimebisuwumonamul.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=craftsman+self+propelled+lawn+mower+owner%27s+manual
- 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_off0000ce2c.bindbda8baac2723395f6c1b14f310aa6f3a3a726e244a778cca4ef78dc0e0312d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE2C | 10820 bytes |
font_01_sfnt_off0000e73b.bin184bbc4f296795f337e92d94f6ec08b5ec04f6b3c430faac4b39b587555d9d45 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE73B | 18208 bytes |
font_02_sfnt_off000116c3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116C3 | 16792 bytes |
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