MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many of which are hosted on compromised CMS uploads or disposable domains, suggesting a link farm designed to distribute malware or phish for credentials. The embedded URLs and the heuristic firings indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/d6488422386ab2284762a02d0fd14399/dowewojim.pdf
- http://brkvinc.com/userfiles/file/pulemiwizamosukidixo.pdf
- https://electrabicycles.pl/app/webroot/uploads/file/16221914542528.pdf
- http://bright-inter.com/file_media/file_image/file/9191776754.pdf
- https://flardochform.se/userfiles/file/mafedetisiwagax.pdf
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160985c9893f31---mateloru.pdf
- https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/1609142421f0ce---62797677721.pdf
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c2b64c925b9---33499231022.pdf
- http://whscardinals1963.com/clients/9/9e/9e5fab02d16e7113a74bdd4e7828f974/File/9187476370.pdf
- http://quinta.cl/upload/files/28788816569.pdf
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/1b83ae68c6090d13ca4a4b5d29091018/89014347003.pdf
- https://sport-jicin.cz/dokumenty/zugal.pdf
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/hqp68n323lu19b4ngudq0cdaj6/48160528736.pdf
- http://panda-es.tokyo/yamituki-n/uploads/files/rizane.pdf
- http://pobierzplik.pl/uploads/files/79437946141.pdf
- https://shayangroup.net/wp-content/plugins/super-forms/uploads/php/files/6ab1b15a5ba45e4d2ef6857389af38ac/93809583162.pdf
- http://volamtuyetthe.com/userfiles/file/36944871610.pdf
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b7bcc5895f---60244311893.pdf
- https://alzubidi.com/userfiles/files/jowodapokojaxizepo.pdf
- https://karapinarinsaat.net/userfiles/upload/file/dotan.pdf
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a53969f302---72664919011.pdf
- http://apricomm.com/userData/board/file/70838777843.pdf
- https://adasms.fr/userfiles/file/gidugamuvuwaxuvupofoxuv.pdf
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/0a099bad8b958e8397b7e070bdfa5723/70562230794.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=convert+pdf+file+to+excel+document
- 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_off0000d8b7.bin1e9ccc0e6394b7fde33f4db36ef5a400a1b2e819cd5e94f6a21cf2fd364e3283 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8B7 | 10752 bytes |
font_01_sfnt_off0000f170.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF170 | 16792 bytes |
font_02_sfnt_off00010982.bin12d0f7227f8cf838984061e58ef9864c388247701a119996ab47991a19075099 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10982 | 16784 bytes |
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