MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to compromised CMS upload directories. This behavior is indicative of a link farm designed to host malicious content or redirect users to phishing sites. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/ae8fe1cb7baa04f13828d713e44fec8e/9091723784.pdf
- http://shsalumniauditorium.org/clients/f/fa/fa32e32112b7cad64a7d7e78b95ed61b/File/95452379484.pdf
- http://brucemsmithlaw.com/clients/e/e2/e252bfde01ef004f685a9648d307a4b9/File/73024044646.pdf
- http://premium-h.info/files/files/39459523634.pdf
- https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160d1ddebc8c06---99713173285.pdf
- https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/7685c9571823b2eb274d5bc1fd48b2b4/noritegovumaw.pdf
- https://emmaushuis.org/pages/53175383343.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/59f485017e218dc4a4c899303378fdb3/zukex.pdf
- http://portalpr-b2b.es/img/user///file/_0235180001623959577.pdf
- http://botosani.ro/img/uploads/file/tidafisonenix.pdf
- https://alnahamgroup.com/userfiles/file/51024894729.pdf
- http://turhantur.com/turhantur/files/gudisogi.pdf
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160735011d667b---zugopixobixujaxexuresuwov.pdf
- https://ilc.ua/wp-content/plugins/super-forms/uploads/php/files/sse56pb4bk9mkl57jgpkdjagh2/dikitixiwulusaxuwazuma.pdf
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/db337a85038abe7aeeecf014edc9bf65/kexiroguxagapikigomiw.pdf
- http://amblesidewindermere.ca/fckuploads/images/file/kunavetevubuzawuxux.pdf
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/50092768c5efb0df3b3848e86781d2d8/dezibidenajafivanirokaru.pdf
- http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfa78a88b6b---67728998333.pdf
- http://agcslohian.com/userfiles/file/bosikekolop.pdf
- https://baohohoanglong.com/userfiles/file/67877497202.pdf
- http://didaconcept.com/admin/fckeditor/file/7369746184.pdf
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/f942537e8977a2b4b8a967fa341744c9/defotibadiwojokinimoxi.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=firearm+blueing+and+browning+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_off0000e72f.bin385a275daf703ed91572b6c9a69dc753bdbeae61050e6d92ecf5165ca854cac8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE72F | 10880 bytes |
font_01_sfnt_off0000ffd3.bin5be3800b5c1518fe474b23ffc866d63bd73a946517cb5a01912df2df8a3367ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFD3 | 16804 bytes |
font_02_sfnt_off00012b93.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B93 | 16792 bytes |
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