MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of links, many pointing to compromised WordPress sites hosting other PDFs. This behavior is indicative of a link farm designed to distribute malicious content or lead users to phishing sites. The ClamAV detection and ML classifier strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/vmd1o63olc63jhejdtgcfvai14/30805733660.pdf
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160841106ac839---14681953959.pdf
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607753f44915c---wexapumapabudowebuwujilud.pdf
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abde13738e4---58775919028.pdf
- http://pijntherapie.be/uploads/files/jebodabujisina.pdf
- http://happysmilecard.com/uploads/files/linemoxab.pdf
- https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a367adf0c4---51959695629.pdf
- https://foundryindia.org/userfiles/file/84805960986.pdf
- http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cdc6437163---38240456979.pdf
- http://diamantina-joaillerie.com/ckfinder/userfiles/files/kibudavavi.pdf
- https://wildarium.com/ckfinder/userfiles/files/xevurifunuzarakinajog.pdf
- http://3e-machinery.ru/app/webroot/filesfiles/gulitogezox.pdf
- http://ingenermarket.ru/userfiles/witukonubiwegu.pdf
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/04e47ff71b6b683a5e46df8307344a48/19358729360.pdf
- https://www.plsok.com/wp-content/plugins/super-forms/uploads/php/files/acc03eb032c7c719a6a8e02ce8292b2a/sofakejabakikileka.pdf
- https://musikkursus.dk/userfiles/file/74603265391.pdf
- http://www.irrv.org/uploads/files/98951551414.pdf
- https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/kf82gt4hu5viqeno9rs10mnbdb/81105629479.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160d2953a54711---lijuvabojoribokuliwozunit.pdf
- https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/f49757f377a0579171c3d87efa957fcd/vumowuwiziv.pdf
- https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d6906e42ae---95465592588.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/n1qa98oruggebei5qot830mjds/bupirubemoporegelisasufed.pdf
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/cc2pa2glvgagaeh3bfgtkkqna2/rovomuposinalomu.pdf
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe7e042672---16904736263.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=ccleaner+free+download+full+version+with+crack
- 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_off0000eb41.bin60a2f7a7476dc617726ede767d742d6dde8c1b865e86533413ec9fa87a384fbf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB41 | 10948 bytes |
font_01_sfnt_off000104a7.bin3b47e6e61eeb7640f018e9806a898b6075c01c859bf390015fb8e2308f63ec88 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104A7 | 17224 bytes |
font_02_sfnt_off0001318d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1318D | 16792 bytes |
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