MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1055.012 Process Injection
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan payload. It contains numerous links pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of multiple distinct hosts and the use of UTM parameters in some URLs further support the interpretation of a coordinated redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/6jf4i8jr4i3ldtah1g64marudr/retej.pdf
- http://shqinze.net/admin/upimg/file///fuwitewabativumesiziv.pdf
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606fd37f55b07---peded.pdf
- http://monkey-do.net/userfiles/file/xefisejutawelotepoba.pdf
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/5d28cff7559592c43436bde81c2459a3/nodanaduzat.pdf
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160f87a646bb7b---12704758270.pdf
- https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/h5m7ra90atvb8tj6cpdrkgd0v7/besilixapufivujijabab.pdf
- http://hyundai-dongdo.vn/images/files/korefizibifoju.pdf
- http://andreaslasnik.com/data/files/lomabimokugadenatum.pdf
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c4b009d3ebc---61246264671.pdf
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce2a2d95672---77216717190.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160aa27f20150d---dovinefitobobetepegaveram.pdf
- https://ludifrance.fr/userfiles/file/82001411302.pdf
- http://krevue.cz/UserFiles/File/vigelokizetarawo.pdf
- https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/0np29ut6d350dufq99spltuugp/14383301794.pdf
- http://lookkorea.net/userfiles/file/bitulazuxif.pdf
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/vceba1icv09htom2pegfvse0kh/14904116767.pdf
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160e024aa4665c---5546608683.pdf
- https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/4mkinm09abnvdc5v97589vkr4d/nebizaj.pdf
- http://divapharma.com/uploaded/file/59048801631.pdf
- https://eghamatyab.com/basefile/bainbookcom/files/fumojozaxunivabipum.pdf
- http://missinternationalbeauty.com/clients/8/8c/8c0f0497d7166b07b5568c04be8084ca/File/25844838912.pdf
- http://birzebbugastpetersfc.com/files/file/61488638993.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=what+i+wish+i+knew+about+marriage
- 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_off000108f0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108F0 | 16792 bytes |
font_01_sfnt_off00012102.bind98a4773e59b96fa0380bd37217fb19f910b852aa472d106246fd1d83d8f8e53 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12102 | 17484 bytes |
font_02_sfnt_off00014ed5.binbf87adf8e7b4b21f7d108f22f13f34fe3b26054366500060a69c88b8860ab48f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14ED5 | 10920 bytes |
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