MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was identified as malicious by a ML classifier and ClamAV, flagging it as a phishing trojan. It contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, suggesting a link farm designed to redirect users to malicious sites. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a tactic to manipulate search engine results for malicious purposes.
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 http://thehigh86.com/clients/13680/File/luwutej.pdf
- http://teechart.com/uploads/images/files/90272544960.pdf
- https://sieuthimayphat.com/ckfinder/userfiles/files/66412149462.pdf
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ad496d77c7---9603769266.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/nkuceejc9sbm0gdcpi5856kdm0/lojivoxati.pdf
- http://buildinggodskingdom.com/webcms/file/wovate.pdf
- https://luathoanghuy.com/uploads/files/vebam.pdf
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/a2e8f7304817d6008e465abc15720f47/42949404596.pdf
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6efd4ae56d---bodelotexivimesawavumis.pdf
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f0be5e70d5---40638809536.pdf
- https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/bumulf89k9p9o3i8d340mfid77/dijodug.pdf
- http://jadever.vn/Images_upload/files/84193282398.pdf
- http://alliance-ltd.com/userfiles/20010280950.pdf
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a1233abddce---bogalomo.pdf
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/8e9c789545b1bb85b2253409ce0ce143/41378285416.pdf
- http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dc5491e994---birij.pdf
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160718a3242069---sanoxakujaguxobepetelir.pdf
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607bcdcdd677a---kafovobogugo.pdf
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/16085d9e9f240c---69071383640.pdf
- https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/863029578191cd3213997bc4b5436e1a/risekebejorefabigisisus.pdf
- https://cmsschoolkg.org/userfiles/file/55936837811.pdf
- http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/16071dd195146f---sinerefafe.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=what+degree+is+the+tropic+of+cancer
- 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_off0000e4ae.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4AE | 16792 bytes |
font_01_sfnt_off0000fcc0.binc397c56bfc2c7989b805bac7232a79313037caa415cbf2fc6f570f0bf5e1448e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCC0 | 18060 bytes |
font_02_sfnt_off00012bcb.bin503a079536d2533ef06d08409146a124bff74260be5346de00f8a88fe4a99de3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BCB | 10844 bytes |
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