MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to websites hosted on compromised CMS upload storage, indicating a potential phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were extracted, the structure and URL analysis point towards a malicious link farm designed to lure users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://haisushitogo.com/uploads/files/duwozux.pdf
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/4ff5bjf8aa19o02869ithv8ck3/63525888079.pdf
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c6f33e1917c---nukusemuzowunukubironepa.pdf
- https://jaukiaplinka.lt/ckfinder/userfiles/files/domaduvejuzugufufevapu.pdf
- https://weyergans-hcc.lv/userfiles/file/60117222107.pdf
- http://altaprecision.com/userfiles/file/nulemazebadaba.pdf
- http://origo.ws/userfiles/file/87932523056.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160983efa3a652---pipaxurabugakugub.pdf
- http://shqinze.net/admin/upimg/file///17196724181.pdf
- https://sofahatinh.com/upload/files/zaletavanedon.pdf
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/0a945d494dd3883929272c4dababf80d/18861368189.pdf
- http://colorfusion.us/admin/images/file/xipisube.pdf
- https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/can6mpd1trd10n417djkbc2q0s/47357829069.pdf
- http://transportdiverse.com/uploads/files/77718617481.pdf
- http://www.scsi.coop/wp-content/plugins/super-forms/uploads/php/files/a32056e784e47aeb44a24733c9b5fe72/silanajido.pdf
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160701906789c8---75916985131.pdf
- http://brianhaymore.com/images/e/file/xubakisikibepovusajadif.pdf
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/c4ae43b0f8a3fa015874d601d8c5dcde/visulata.pdf
- http://ymmicro.com/files/files/22280435193.pdf
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd6b9c03fe7---31685851344.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=chapter+21+hydrocarbons+worksheet+answers
- 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_off0000b734.bin79182441eec593c5341546a15e0dc658ab07c2d3b3cd9f390ca888aa2ec7adbe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB734 | 11108 bytes |
font_01_sfnt_off0000d117.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD117 | 16792 bytes |
font_02_sfnt_off0000e929.binab2d9b230565fe62be1f683450b7e275c5796382f19bd36cfb67846ada88f3f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE929 | 16024 bytes |
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