MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm with numerous URLs pointing to compromised CMS upload storage and disposable hosting, indicating a phishing or redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lure users to malicious sites for further exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://www.nachtruhe.info/up/files/busekedigamidijogoferuw.pdf
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ba0d8a8ce42---wosokunikogowutemuni.pdf
- http://basaritarim.net/admin/editor_resim/file/falosejunokonux.pdf
- http://suapaiatuipelehakefamily.com/clients/80707/File/89120088772.pdf
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/19ce5f266b43efe479fbae1b12e7cd58/ximejiw.pdf
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d33c6b29e71---vasabarelapiverejezugowut.pdf
- https://bdsvieclam.com/upload/files/tiluvetoxunitufavirunonu.pdf
- https://bio86.net/fichiers/fasomonafaxa.pdf
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/ff1d1c6c398cbd51de28d38e096ad53a/15055993751.pdf
- https://menu2uplus.com/images/file/82939800723.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3d82cf5069b6bf60a2d0a6d21ca6bc77/72814842610.pdf
- http://southfieldhigh.com/clients/a/a2/a202dccd336a30abee2d0a4364b9f07c/File/34181157269.pdf
- http://sklepjola.pl/userfiles/file/50724982961.pdf
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/6e0r35jonl558ifkv8d09mh8k5/74672807265.pdf
- http://niestachow.pl/data/aktualnosci_imgs/file/texonofiludag.pdf
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070e475f1205---tadabivijetobu.pdf
- http://agcslohian.com/userfiles/file/81428127630.pdf
- https://eobliecky.sk/userfiles/file/pegesitorofitaxomokudu.pdf
- http://studiophotosfashion.it/userfiles/files/jaxagogosatalaraxaraw.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=meaning+of+on+the+mend
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dc80.bin93f15c40ecc13901ebc954f40e46036d30e0cbfa0555e0fd2eada0533e4eda8a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC80 | 1996 bytes |
font_01_sfnt_off0000e597.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE597 | 16792 bytes |
font_02_sfnt_off0000fdae.bin328789e119aa618a559e0be645b0b8ac4f70e53ea6ea9a01713a8b9a0e35d194 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDAE | 10480 bytes |
font_03_sfnt_off0001150d.binde9eb08a101cb53607f780e48fc900bdd85f73cf1c51cc0bdf77781afbc7eb59 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1150D | 21972 bytes |
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