MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed for malicious redirection. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9910
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://apskarota.org/userfiles/file/vabagudiduju.pdf
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/oi9i686tm9ulcdged6snhm08ms/zibitejafolakemoxori.pdf
- https://iwanbim.com/userfiles/files/10214620803.pdf
- https://dakotaterritorydevelopment.com/ckfinder/userfiles/files/kigut.pdf
- https://noriupapildu.lt/ckfinder/userfiles/files/89732403525.pdf
- https://bursakaynak.net/userfiles/file/33271503588.pdf
- http://csc-0411.com/userfiles/file/20210611045939_gjxwrr.pdf
- http://c2r-auto.com/uploadfiles/file/2021052001593873499.pdf
- https://ddshower.com/ckfinder/userfiles/files/sojowa.pdf
- https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/9c2b1879bf95896659a755727ae57c45/88602091772.pdf
- https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/74b1e3eb2c720ae4a99054ccfe8e41de/7319683312.pdf
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/34a53ffe85fc10cd3c510c3c632f8257/14233202503.pdf
- https://alakharia.com/public_html/userfiles/file/sowarumajepemuri.pdf
- http://jar-ted.pl/file/23863665361.pdf
- https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160942e45733e5---famogapumaraxabovuw.pdf
- https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/ed6c9a5550d8ad8c5e9f1ad7ffcac626/nivajinovexegug.pdf
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608a5f03a598f---28479182834.pdf
- http://strategie-online.net/catalogue_dynamique/file/beduzifimuno.pdf
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607a76f8f2c50---42105056167.pdf
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089d7cacf9bb---26701824957.pdf
- http://nickels.design/ckfinder/userfiles/files/lalerizegopufibirezokujov.pdf
- http://fmafirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/belafej.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=land+meaning+in+english
- 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_off00011892.bin478d64aad58a46c60a63c2bd6d05d9c39068b35528f549688063ac651822ff24 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11892 | 1760 bytes |
font_01_sfnt_off000120e9.binf7d9b6e3ea6bf69de3bc5a7e024133a05c22ab69998f955ffd8f2908002edd26 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120E9 | 19732 bytes |
font_02_sfnt_off000153da.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x153DA | 16792 bytes |
font_03_sfnt_off00016bf1.binb7ee479dcfb4f44f22690974e3cd22b6ab6457e77e9ec53b790c82eb93b8ff8f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16BF1 | 10332 bytes |
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