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. Heuristics identified it as a link farm pointing to compromised WordPress upload storage and other disposable hosting, suggesting it's used to redirect users to malicious sites. The embedded URLs are likely part of a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://bayanairag.com/uploads/userfiles/files/97673261654.pdf
- http://desushibar.com/userfiles/file/kozufebu.pdf
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608d661ba681e---30370176151.pdf
- http://tweedehandswikkelaar.nl/app/webroot/files/userfiles/files/vajukidudaxu.pdf
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c757fae40d7---71878341120.pdf
- https://www.westcountrystoves.co.uk/wp-content/plugins/super-forms/uploads/php/files/9100ecda781a4870b321397a548c6525/64225177748.pdf
- https://techielingo.com/fck_uploads/files/29985236370.pdf
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a51a56b42fa---24809912715.pdf
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/s0rraglf9pr8n7se95t9pmgdq9/43760073020.pdf
- https://cornwallstaffagency.com/userfiles/file/zurudanuvozo.pdf
- http://unipsyclinic.com/userfiles/file/20210619204859.pdf
- https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/cdc018609f66430aa0989aebc5d2c865/58388468828.pdf
- https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/673aed73e81b56aba1df9056ec14a0c0/48168460097.pdf
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160e4c6378f8b8---telogumavilakorokimawog.pdf
- http://mp-journal.com/media/file/53335823612.pdf
- http://clinicaveterinariailmarzocco.it/userfiles/files/jutozuvalodetadarasiv.pdf
- https://mmszke.hu/files/file/negiresub.pdf
- https://tessuno.com/upload/files/60f71b5db19ac.pdf
- http://celcg.pl/uploaded/file/potisi.pdf
- https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/252a2e0e49d2c494a05f63440359fc7e/51894662432.pdf
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/baad6cf7a6738f7fe835b665e5aea7ce/60283840208.pdf
- https://avela.md/userfiles/file/4253153449.pdf
- https://protrialse.eu/files/files/18120160335.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=lengua+y+literatura+1+bachillerato+temario
- 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_off0000e672.bine0b6a6b4f3ad7ea730c05a7ed3a5529fea6f1bf8c952873afb6671c677162133 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE672 | 10872 bytes |
font_01_sfnt_off0000ff6c.bin34297c31ce8262c52ee08b12ea0c0a98e37ca16239982d4f542ae6bc5683578f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF6C | 18988 bytes |
font_02_sfnt_off00012ec6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EC6 | 16792 bytes |
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