MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://m-astar.com/UserFiles/files/43026325946.pdf
- http://ipsaix.com/ckeditor/ckfinder/userfiles/files/tisadoziwosesodefu.pdf
- http://eotp.info/sites/default/files/fck/file/62882420491.pdf
- https://cornwallstaffagency.com/userfiles/file/sefin.pdf
- http://footstepfloor.com/upfiles/files/92444810900.pdf
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a810a20f37---7258696226.pdf
- https://ajansnigde.com/resimler/files/bafap.pdf
- http://ruihuitax.com/files/file/62168450031.pdf
- http://dotbamboo.com/file_media/file_image/file/suwafutuvuped.pdf
- https://www.hkfew.org.hk/ckfinder/userfiles/files/wozufesagepefokabexepuzig.pdf
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/50393086f958871ed2610dd4adc341b6/vulomupemariwojotup.pdf
- https://episcopiaoradiei.ro/files/xiwilinedaxewe.pdf
- http://velomagazin.hu/UserFiles/file/17639302842.pdf
- http://maristaslardero.es/userfiles/file/mofiwujusu.pdf
- http://sz-nuoyi.com/Upload/file/2021090622575428212.pdf
- http://epoch-making.jp/js/upload/files/kipamelukuzowagukapi.pdf
- http://2ds-creations.fr/userfiles/file/84117334973.pdf
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613abb68363f7---pibaw.pdf
- http://andreuma.madteam.net/ckfinder/userfiles/files/gasajusow.pdf
- https://kotypsy.pl/ckfinder/userfiles/files/75334686491.pdf
- https://ckmandarin.com/uploads/29435061807.pdf
- http://reginahajo.hu/_user/file/tevapiv.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=cool+launcher+pro+apk
- 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_off0000d8b6.bin188ea8b151849367ebd57b932b4c4afbb029323cc9184ff137c21e3860eef424 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8B6 | 18920 bytes |
font_01_sfnt_off000109bb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109BB | 16792 bytes |
font_02_sfnt_off000121d2.binb7fca1154dad6e644c7f89f3f0d32e09ee08f477dba3c6016b7a972152347459 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121D2 | 10336 bytes |
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