MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous embedded URLs point to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious or phishing content. No scripts were extracted, but the structure and URL patterns are indicative of a phishing or malware distribution lure.
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 https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160910324e3dc1---46967502438.pdf
- http://longthinhphat.net/uploads/files/vedexotixaxokixemedo.pdf
- https://dammesliepas.lv/ckfinder/userfiles/files/11974933891.pdf
- http://savannahcentury.info/clients/4/44/449a5b3489ef279447e90cf6cdd72f1c/File/gulenunigezuved.pdf
- https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9b55ceeb09---68561962329.pdf
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160bfae3fe3f2b---82044663900.pdf
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/bpgccaobct7mq0mkuoiea933no/pabalelamajogumuwerutados.pdf
- http://standartbio.com/fckfiles/file/41766864761.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/9c05217f6358bd4fce1063236065ac76/bipegalekujajofamefunelez.pdf
- https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/177dd9c5or6svogcghfh901pb9/gobafafogusemomotisozo.pdf
- http://ongnuocdenhat.com/upload/files/kafotapunufexosoj.pdf
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/16088b29eb1f33---81296406750.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081759fd3ef9---gafobotabozakov.pdf
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160759c97ef899---tomotagofijaluzupezumaper.pdf
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c26c9cb9ad---revesibimigedekakula.pdf
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096f81605fbf---tumewobokogutonogixufi.pdf
- http://renknh.com/ckupload/files/34598418574.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/5286a9cd1c266f091fc5794b90eb0658/domod.pdf
- http://caphegiabao.com/upload/fck/file/41845504695.pdf
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/fa4440e4ac927ab5b512f648c54056dc/93436436338.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=simple+is+sophisticated
- 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_off0000b8d7.binb24453c30c404f55891b289ee288a0cef557e95c508dc25bb30a188924349820 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8D7 | 10648 bytes |
font_01_sfnt_off0000d132.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD132 | 16792 bytes |
font_02_sfnt_off0000e944.bin75d8f221f7645816fac52bc79d6879ad964c255fc07d7911e56ac37ae1aeb7d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE944 | 15996 bytes |
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