MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It functions as a link farm, containing numerous URLs pointing to external sites, many of which are hosted on compromised or disposable domains. The presence of multiple PDF link farm heuristics indicates a deliberate attempt to obscure the true destination and potentially distribute malicious content or phish for credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://nsdadventist.org/FCKData/file/tewaxon.pdf
- http://elskup.pl/images/assets/file/47000425330.pdf
- http://bharatdarshan.net/rgroup/ckfinder/userfiles/files/dajajekodedogovupi.pdf
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/dk0h0fifblsil26lf10qes380b/2933085708.pdf
- http://centrons.com/uploaded/file/780149886108726e0551f.pdf
- http://prtourusa.com/FileData/ckfinder/files/20210624_2A2C96F7391B0893.pdf
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609781dc972f8---xuposawaxojifodo.pdf
- https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4615d4f6c045cf4ca7d99203f1152b87/dilajanuluzekulugopufoneg.pdf
- http://zhengfutz.com/v15/Upload/file/2021522846134445.pdf
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612cff2a3b6d7---3340595616.pdf
- http://art-wonders.com/ckeditor/ckfinder/core/connector/php/uploads/files/gelusen.pdf
- https://marigabung.com/contents//files/28000893529.pdf
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb605d085c0---18804896226.pdf
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160ab83840b828---8208840041.pdf
- http://ediliziaunoaventi.com/userfiles/files/kibezowa.pdf
- https://ckmandarin.com/uploads/26741388120.pdf
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606f2b6863c5b---fefor.pdf
- http://mofrantech.com/userfiles/file/lefisavomagevezejosomovar.pdf
- http://pc75.net/upfiles/file/1621187621.pdf
- http://tumonjfk2020reunion.org/clients/f/fe/fe8b949e9fe7e5065ccade199761aacb/File/52074139442.pdf
- http://debden.org/userfiles/file/kuvuwarum.pdf
- https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/1b885d3c3c455f3fa6474d55300ab6e2/76462922000.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=trig+identities+formula+sheet+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_off0000c7f6.bin32caa59cf50c67b6f6e4205dcc01115a20a0340012161eba23f31fd1f1e49a8a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7F6 | 11008 bytes |
font_01_sfnt_off0000e11f.bin3ed9b035edd7ea545ad5e857549a0707263b29f3707ed31cf0aebf1f8b4e8d5b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE11F | 17412 bytes |
font_02_sfnt_off00010ecc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ECC | 16792 bytes |
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