MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm directing to multiple websites, some of which host further PDFs. This behavior is indicative of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly support its malicious nature, with the primary goal appearing to be directing users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9934
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://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/soup7ac7t1rehnai97vqd3j2b2/xananalometedad.pdf
- http://webhenevents.com/clients/868374/File/13669229840.pdf
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160827e7255553---xinevabudasan.pdf
- http://rydelko.pl/userfiles/file/10229398399.pdf
- http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/160736e70a3ef2---konokukirexutelakoxugus.pdf
- http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/92262669e9ff8597ff0efca1695b9e12/dobunane.pdf
- http://phoiinnhiet.com/images/uploads/files/fiwilow.pdf
- http://npxbyy.com/wang3_3_10_27/Upload/Upload/file/2021624622129215.pdf
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/5727982e967e16db887c708917f7841c/fikafufubidimus.pdf
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/160874b288427d---nizetorewit.pdf
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607a6cf5aff44---32988018710.pdf
- http://delshadian.com/public/userfiles/file/22166832567.pdf
- https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/las1k6dv5bqcum62720vb68k80/minavuzakirawud.pdf
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a626d6e43c8---gosamisisikibodokizogoj.pdf
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/4b24b6d784894f543c9193d6e1fde8cd/55601903214.pdf
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/rpinbr3es7q08o6dp5hi317l47/kubonakud.pdf
- http://xn--80aab8aioy.xn--p1ai/userfiles/file/borodesuni.pdf
- http://mtsskzy.com/userfiles/file/sotefe.pdf
- http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d945583d2e---76467473468.pdf
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/gcjq48dkmmaar9f89e389asjvf/pinonaxexubazukolemum.pdf
- http://netmutum.com/userfiles/file/numasofogavo.pdf
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160977e4f2add2---repitidem.pdf
- http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160ab720a64ddc---sisulebidosunib.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=samsung+one+ui+icon+pack+apk
- 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_off00012f26.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F26 | 16792 bytes |
font_01_sfnt_off00014738.binf1c4e6e126549145499a0205b673347704f24cba905ceb58957c9a42bfaab5e5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14738 | 17552 bytes |
font_02_sfnt_off00017531.bin40e713e4f16507460b6f51a0bc8df467d8ef2f2b40e8d9d59a0abebb8f6d3901 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17531 | 10740 bytes |
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