MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document contains a large number of links, many of which point to compromised WordPress upload directories and disposable hosting domains. This behavior is characteristic of a link farm used to distribute malicious content or phish for credentials. The ClamAV detection and ML classifier further support its malicious nature, indicating it is likely a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
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://mytopics.it/uploads/file/binexin.pdf
- https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/fec785e7f29bae3013ab838c17f03697/motukesubot.pdf
- http://deltastal.ru/userfiles/file/24733626290.pdf
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/b350f4ca282b15a9187b5370769e3a9d/17123805914.pdf
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609075a776bf5---dobamutopagu.pdf
- http://bogieclassof67.com/clients/71235/File/norat.pdf
- http://4bzsoftware.com/Images_upload/files/pabobotebejod.pdf
- https://cortopolis.ar/userfiles/file/rinamejixagul.pdf
- http://files.ibiza-ferien.de/file/3401534280.pdf
- http://uticahighclassof78.com/clients/8/89/89c70e22fe5ad1405280b455f64975d7/File/luzobuwudegupovez.pdf
- http://condosworld.com/abisol1/userfiles/files/6003508941.pdf
- http://africareview.in/userfiles/file/69305637718.pdf
- http://homenet-spb.ru/userfiles/file/64955627858.pdf
- https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/ve60id9g5fcu65hskua7i66qd1/86153685390.pdf
- http://miraesusan.com/ckupload/files/13119087647.pdf
- https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/26745bcb78665a2a7f2821d1eb487e90/91665634249.pdf
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1609cac11813d4---xegovumibavowubidimesa.pdf
- https://ludifrance.fr/userfiles/file/45509388231.pdf
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b55b79f3205---88655842028.pdf
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de833153a37---zuzomotopejuwivofewonup.pdf
- https://victorybear-info.com/userfiles/files/26099015471.pdf
- https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/9d3453a654c025bd0e12a5b3e7bd1000/vejekupigijaloruxujo.pdf
- http://aarogyamedico.com/userfiles/file/6980586111.pdf
- https://datatech-int.com/userfiles/file/99852153370.pdf
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/amul73d2iefo5u5dvegei909h5/57346288297.pdf
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160796a9c0cea3---24497500718.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=what+type+of+reaction+is+a+neutralization+reaction
- 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_off0000ed1c.bin43e8350945afaccdb3a9ddae904a9298c51c6d48e761ce560ff2f33d70a68179 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED1C | 10844 bytes |
font_01_sfnt_off00010633.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10633 | 16792 bytes |
font_02_sfnt_off00011e45.bin5a2f7475bbac0ba9c741907add13af748acff20c70daca5f62dd92713b096875 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E45 | 17260 bytes |
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