MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with multiple URLs pointing to compromised WordPress sites. One such URL is directly included as an IOC.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160858481734fe---xifonaxoferojujiwaredaru.pdf In PDF document text
- https://arvikabc.com/images/uploadedimages/file/25331944000.pdfIn PDF document text
- http://ksnjl.com/userfiles/files/tidoje.pdfIn PDF document text
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d37de9208e---dakowubaxovojatewesibewu.pdfIn PDF document text
- http://airconbank.com/upload/fckeditor/file/37765676501.pdfIn PDF document text
- https://aartipalette.com/userfiles/file/kemugakuxezuretexajulezar.pdfIn PDF document text
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160778d08361cc---jedoji.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d9fd4cbbe7---joxupizivot.pdfIn PDF document text
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac126bc01b9---jaxavatufivefugowixab.pdfIn PDF document text
- https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/160835f1e14286---16894293557.pdfIn PDF document text
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608970fc8695e---66186679705.pdfIn PDF document text
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/efe5f2fd5ce1130700741ececefb9a22/81074280351.pdfIn PDF document text
- http://nedirajtebosnu.net/userfiles/file/sorerukegixajurim.pdfIn PDF document text
- http://ipmarketing.net/userfiles/file/putit.pdfIn PDF document text
- https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/ilbcpv6t9uasl7n780jclnun73/dezapiwitub.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
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=kannil+anbai+solvale+yarum+illai+ival+pole+songPDF link annotation
- 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_off0000dcda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCDA | 5412 bytes |
SHA-256: 8a75f04354dbbbeaef25fa7f7a3e13ceee1e0c6dbc0a26b3da288eb58c3fecc2 |
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font_01_sfnt_off0000ef3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF3A | 10732 bytes |
SHA-256: 4daf382eeddb188907d47019b96c56e826479c00a499c2bfd457227fa52058cd |
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font_02_sfnt_off00010b19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B19 | 10512 bytes |
SHA-256: 7074010c30fb50b38e089ed65bed0a053bb529f50e7dd3f86db0e09423e8a354 |
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