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 of which point to websites hosted on compromised CMS platforms or disposable hosting, suggesting a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9827
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://ex2010.com/uploadfile/file/2021090701322773499.pdf
- http://otvorene-srdce.sk/userfiles/file/75499988088.pdf
- http://siamsankyo.com/Uploads/file/38454521943.pdf
- http://photo-preiss.com/upload_files/files/bofudunef.pdf
- http://bienchidan.org/uploads/files/12239305425.pdf
- http://thevisionkharj.com/userfiles/files/43529589594.pdf
- https://vhcvietnam.vn/ckeditor/images/files/lewixifixes.pdf
- http://npcbalkan.net/ckeditor/ckfinder/userfiles/files/48381675256.pdf
- http://poptheme.cn/uploadfile/files/20210906_121144.pdf
- http://educaholistica.com/resources/img/imagesck/files/50644869183.pdf
- https://dycmc.com/DATA/upload/files/202109061005009151.pdf
- https://debo-fit.be/userfiles/file///waxasexodeponomi.pdf
- https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/ef68518d9faca7cda7a8409487b2af2b/86823347169.pdf
- http://duetsepolno.pl/userfiles/file/jusegatifomopujezekarolu.pdf
- https://dichvuketoanvn.org/uploads/files/woribepijo.pdf
- http://omonetach.pl/foto/ilustracje/file/buvapikelufukizodunu.pdf
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f37114ed9f---34198682953.pdf
- https://mobiligennari.com/userfiles/file/dinifimalazik.pdf
- http://urbanposthotel.com/admin/ckfinder/userfiles/files/5960528873.pdf
- http://tko.wavedev.net/img/files/files/jefuj.pdf
- https://cortopolis.ar/userfiles/file/puxupa.pdf
- https://atvatextile.com/upload/ckfinder/files/4695673952.pdf
- http://imcborivali.org/userfiles/file/pejinatosefapipax.pdf
- http://bfttacg.marketsearching.com/upload/files/13726846822.pdf
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161335c2ce1640---58683401252.pdf
- https://venefoil.com/ckfinder/userfiles/files/73445006680.pdf
- http://speckrepej.com/upload/file/56717765422.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=clear+database+sqlite+android
- 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_off0000c5d9.bin416ec57c405d8efd19f4bf3f88ee9830a54205bd811d01f653dc0795f0ca603a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5D9 | 10556 bytes |
font_01_sfnt_off0000ddca.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDCA | 16792 bytes |
font_02_sfnt_off0000f5dc.bin5e4fa6f7d85c2017ac578b0f9b51ce988efbb11193f1a59dac5f1ff957b876d0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5DC | 18360 bytes |
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