MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous links to external websites, many hosted on compromised CMS upload directories, suggesting a phishing or malware distribution scheme. The presence of embedded URLs and the nature of the heuristics point towards an attempt to redirect users to malicious content.
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 https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/5b2ff59ea81708152f097acb461af43b/wesemimuxuwumuz.pdf
- https://www.m2asolutions.com/wp-content/plugins/super-forms/uploads/php/files/f2271f7e4f2cfcd4a535265f9fcba721/duserozuzunadekapuzebafag.pdf
- http://tnslib.net/userfiles/files/sasakado.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ba2899668ae---77455651960.pdf
- http://morethancars.nl/uploads/edytor/file/86039088329.pdf
- http://synthecinter.com/userfiles/files/4618743718.pdf
- https://mgc.to/sites//web/upload/files/sudirakulenejikipobu.pdf
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160852cb87b77a---jorar.pdf
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160d2dc67ae3fe---veletol.pdf
- http://womenshealthcarenp.com/clients/2/29/29a32d4da59f0b4eaa4573e1354aeabc/File/24222860322.pdf
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ad91f819c0---19459516529.pdf
- http://cuhs1981.com/clients/8/82/82ca37c076ec4232796cb58ed009bb3a/File/gusurisasigavugepugox.pdf
- http://aylincinarli.com/fckfiles/file/tuwofirikilemisep.pdf
- https://bustotoronto.com/userfiles/file/sopumabutapetam.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160712e4fb33d0---87275238879.pdf
- http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a10dd55e999---69219940532.pdf
- https://jdrum-music.com/uploads/ckfiles/files/37819453945.pdf
- https://guijek.com/userfiles/file/litubazekevowajozajozul.pdf
- http://rotang.net/userfiles/file/32479124938.pdf
- http://poiskvod.ru/images/file/jinupivopiwaguwotamewive.pdf
- http://lycee-elm.org/userfiles/file/38620574191.pdf
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/ba60a4ee772d645fe8ba6b9a2c8dfbca/fanifex.pdf
- http://fecirturizm.com/resimler/files/danobirolip.pdf
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bb280081122---24925848702.pdf
- http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/d372f9det3cd78hjla5f56kui7/jizumabo.pdf
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1cda5947ce---firogurir.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=objectives+of+business+firm
- 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_off0000edc2.bin0efb8083d8f71991c6f40d8c82baaefbd7f918192895d4fd54175339d5c7a3f7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDC2 | 10748 bytes |
font_01_sfnt_off00010681.bindf3f6510962175c19688bd996cd6f1c67c857716f1aae857435e5a4f31711616 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10681 | 16204 bytes |
font_02_sfnt_off00013038.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13038 | 16792 bytes |
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