MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing or callback scam. It contains numerous links to potentially compromised websites and is structured as a link farm, suggesting an attempt to distribute malicious content or redirect users. The heuristic 'SE_CALLBACK_LURE' indicates the document likely prompts the user to call a phone number, a common tactic in tech support scams or fraudulent billing schemes.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://gonzagafood.com/userfiles/files/mufamalomubikelotusirirom.pdf
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f5ff0807ef---rilosuw.pdf
- http://finalbrand.cz/upload/file/gukugifab.pdf
- https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/160700c77f26cd---kufivojapawewu.pdf
- http://nirmalamathachurch.org/cms_uploads/image/file/gedifosin.pdf
- https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/d57addb99fb0efad7e347a3be44466c9/kuxufatovabekud.pdf
- http://yongqingtech.com/d/files/fogum.pdf
- http://reutlinger.pl/userfiles/file/tovananurenexeroneduna.pdf
- https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/160954e440776e---xevab.pdf
- https://digidatadecolombia.com/wp-content/plugins/super-forms/uploads/php/files/ffaaf560ad6c885f92a6cd08c4bfda5c/53864573507.pdf
- http://didongsinhvien.com/upload/files/62386038165.pdf
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c93c34626a5---36006237164.pdf
- http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1ecd9e984d---81471836963.pdf
- https://factinet.com/uploads/files/27870970764.pdf
- https://wolfgang-photography.com/userfiles/files/49937489171.pdf
- https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/54gov0fv0glupcbh2uim9hqbgu/matekekawesikixijodej.pdf
- http://www.alex-vasilkov.ru/images/wisdom/file/gupavumexurokazukivakosa.pdf
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/67472bbe0697a0d0c73aa48e7cf4a48f/lerulijulag.pdf
- http://ingpoggi.eu/userfiles/files/54552500894.pdf
- http://www.jokilaaksonratsastajat.fi/file/gogorufabovig.pdf
- http://eshop-kocicinadeje.cz/files/file/43962334432.pdf
- http://angarakshaksecurity.com/userfiles/file/benetupel.pdf
- https://espritgt.com/userfiles/file/muwiwuwisepadanobobi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=anabolisme+catabolisme+pdf
- 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_off0000b61b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB61B | 16792 bytes |
font_01_sfnt_off0000ce2d.bin78ad94367fe89d48aa1583bfd7aa92485203e96321fda319621131112ca87c62 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE2D | 16108 bytes |
font_02_sfnt_off0000f6d8.bin21105939ea8478e69490bb24fac2ee27454bab3e3d94de142c092e1891391754 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6D8 | 10800 bytes |
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