MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites and other disposable hosting, suggesting it functions as a link farm to redirect users to malicious content. The PDF structure itself does not contain readable content, but the heuristic firings strongly suggest a phishing or malware distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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 http://ecovn.vn/uploads/news_file/fexotumikomukuwumowubax.pdf
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/841573f756c317224197252b91d7af2b/bivadokek.pdf
- http://www.hangmandigital.com/files/file/68657029320.pdf
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160bcfb7b75754---jazosumud.pdf
- http://fluitec.fr/ressource/site-image/files/93260533472.pdf
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16076efca6927a---zugadevadud.pdf
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a20dc092126---72227080783.pdf
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/acecef0282b4f2a9b8ada1300080bce6/zomiberita.pdf
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608914e58d0d9---daxapa.pdf
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c84c42d643d---wixaturuboxediripuzuzu.pdf
- https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b7c7646300b---97406183866.pdf
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/c06c2efb096058b3fd2ce3bb734cd026/roduwopilewalejejuvogu.pdf
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160aa9eb532253---7643687860.pdf
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070f9aa17e42---5578689725.pdf
- http://aiswaryamatrimonials.com/fck_uploads/file/dubalaruz.pdf
- https://oversaslogistica.it/file/7128976540.pdf
- https://ghnservizi.com/file/72531608522.pdf
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/k3ulj8bj2jn2ciep4up1nfqcfc/35890197606.pdf
- https://www.eoluk.com/wp-content/plugins/super-forms/uploads/php/files/27u93k9bcu3l7u6sm859dtaib0/11110644510.pdf
- http://workprohealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a94f891583---guwolesikimapesaresexax.pdf
- https://ewastexperts.com/userfiles/files/59401749300.pdf
- https://senfina.top/uploads/files/lunijunavuxidegomuwalib.pdf
- http://infrabud.eu/fckpliki/file/93641700206.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6c830a0bf3---76746299639.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=the+private+life+of+the+brain+by+susan+greenfield+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_off0000c994.bindf4cfba947fb657aa96c29db25e8e4a50188000fca4139e7815e3104ef14d9d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC994 | 16364 bytes |
font_01_sfnt_off0000f40f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF40F | 16792 bytes |
font_02_sfnt_off00010c26.bin0918c773c7a580703a10a115b6ccc416a2a2a0be785978845d051e1e53b7a24e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C26 | 11160 bytes |
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