MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous links to external websites, many of which are hosted on compromised WordPress installations. The document body, though heavily obfuscated, suggests a lure related to educational materials, specifically mentioning 'Tamilnadu 11th economics book'. The presence of multiple PDF link farm heuristics and a high ML classifier score indicate malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the extensive use of external links points to a downloader or redirector pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://synerhu.ru/uplcv?utm_term=tamilnadu+11th+economics+book PDF link annotation
- https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e7c28e2407---rogixigolisaxotapuf.pdfIn PDF document text
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/ah665vetqaq2br0qtgdcq6qed7/66233295482.pdfIn PDF document text
- https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/e90ebbcc219616dbb9ab50f5df919143/96721405444.pdfIn PDF document text
- https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/4adcf5c446596be0a412d308158a1daf/89538127475.pdfIn PDF document text
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca74649528---73842234775.pdfIn PDF document text
- https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/p118rhnfovde3k5vtj9r78do2q/70213049671.pdfIn PDF document text
- http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d97933ff3a---dugapoxokujodedupadovo.pdfIn PDF document text
- https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/v0o4pctqg700bhophs60dmceh6/44874027924.pdfIn PDF document text
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607fbee36b1c3---4815983088.pdfIn PDF document text
- http://zetrade.cz/userfiles/file/56585894487.pdfIn PDF document text
- https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/f49b2609d80f0d06ddc5495c0bbf4c40/9916155521.pdfIn PDF document text
- http://toddfamilyreunion.com/clients/4/48/482e924d5a052aa4a0c13eb8a30e0bc8/File/87517109324.pdfIn PDF document text
- https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/b8d6e2953a766b70e5eeb0fa73b7cfe2/mizape.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d7d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7D2 | 5288 bytes |
SHA-256: 512292e9cbbd993409e998a9aa215602c5f6175c6f9c68d4912754b5102614fe |
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font_01_sfnt_off0000e9a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9A6 | 5360 bytes |
SHA-256: 1728206c2733c3d9532ecbc6d150013a736f3cc602750b419313423a2dbe9a38 |
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font_02_sfnt_off0000fb5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB5A | 10668 bytes |
SHA-256: 56aa0852e106a9983cc7624640cfd37fee934338d562c29f541aba03925e09db |
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